[1881] | 1 | /** |
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[7269] | 2 | * This software is copyright (c) 2011-2022 by |
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| 3 | * - Leibniz-Institut fuer Deutsche Sprache (http://www.ids-mannheim.de) |
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[1881] | 4 | * This is free software. You can redistribute it |
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| 5 | * and/or modify it under the terms described in |
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| 6 | * the GNU General Public License v3 of which you |
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| 7 | * should have received a copy. Otherwise you can download |
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| 8 | * it from |
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| 9 | * |
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| 10 | * http://www.gnu.org/licenses/gpl-3.0.txt |
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| 11 | * |
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[7269] | 12 | * @copyright Leibniz-Institut fuer Deutsche Sprache (http://www.ids-mannheim.de) |
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[1881] | 13 | * |
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| 14 | * @license http://www.gnu.org/licenses/gpl-3.0.txt |
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| 15 | * GNU General Public License v3 |
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| 16 | */ |
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| 17 | package eu.clarin.sru.server; |
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| 18 | |
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[1889] | 19 | import java.io.IOException; |
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[1881] | 20 | import java.net.URL; |
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| 21 | import java.util.ArrayList; |
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| 22 | import java.util.Collections; |
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| 23 | import java.util.Iterator; |
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| 24 | import java.util.List; |
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| 25 | import java.util.Map; |
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| 26 | import java.util.StringTokenizer; |
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| 27 | |
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| 28 | import javax.xml.XMLConstants; |
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| 29 | import javax.xml.namespace.NamespaceContext; |
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| 30 | import javax.xml.parsers.DocumentBuilder; |
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| 31 | import javax.xml.parsers.DocumentBuilderFactory; |
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[1889] | 32 | import javax.xml.parsers.ParserConfigurationException; |
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[1881] | 33 | import javax.xml.transform.Source; |
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| 34 | import javax.xml.transform.dom.DOMSource; |
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| 35 | import javax.xml.validation.Schema; |
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| 36 | import javax.xml.validation.SchemaFactory; |
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| 37 | import javax.xml.validation.Validator; |
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| 38 | import javax.xml.xpath.XPath; |
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| 39 | import javax.xml.xpath.XPathConstants; |
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[1889] | 40 | import javax.xml.xpath.XPathException; |
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[1881] | 41 | import javax.xml.xpath.XPathExpression; |
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| 42 | import javax.xml.xpath.XPathExpressionException; |
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| 43 | import javax.xml.xpath.XPathFactory; |
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| 44 | |
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| 45 | import org.w3c.dom.Attr; |
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| 46 | import org.w3c.dom.Document; |
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| 47 | import org.w3c.dom.Element; |
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| 48 | import org.w3c.dom.NodeList; |
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| 49 | import org.xml.sax.InputSource; |
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| 50 | import org.xml.sax.SAXException; |
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| 51 | import org.xml.sax.SAXParseException; |
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| 52 | import org.xml.sax.helpers.DefaultHandler; |
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| 53 | |
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| 54 | |
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| 55 | /** |
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[1889] | 56 | * SRU server configuration. |
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[1957] | 57 | * |
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[1889] | 58 | * <p> |
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| 59 | * Example: |
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| 60 | * </p> |
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[1881] | 61 | * <pre> |
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[1889] | 62 | * URL url = MySRUServlet.class.getClassLoader() |
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| 63 | * .getResource("META-INF/sru-server-config.xml"); |
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[1881] | 64 | * if (url == null) { |
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[2246] | 65 | * throw new ServletException("not found, url == null"); |
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[1881] | 66 | * } |
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[1957] | 67 | * |
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[2734] | 68 | * // other runtime configuration, usually obtained from Servlet context |
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[1881] | 69 | * HashMap<String, String> params = new HashMap<String, String>(); |
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[1889] | 70 | * params.put(SRUServerConfig.SRU_TRANSPORT, "http"); |
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| 71 | * params.put(SRUServerConfig.SRU_HOST, "127.0.0.1"); |
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| 72 | * params.put(SRUServerConfig.SRU_PORT, "80"); |
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| 73 | * params.put(SRUServerConfig.SRU_DATABASE, "sru-server"); |
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| 74 | * |
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| 75 | * SRUServerConfig config = SRUServerConfig.parse(params, url); |
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[1881] | 76 | * </pre> |
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[1957] | 77 | * |
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[1889] | 78 | * <p> |
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| 79 | * The XML configuration file must validate against the "sru-server-config.xsd" |
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| 80 | * W3C schema bundled with the package and need to have the |
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[1881] | 81 | * <code>http://www.clarin.eu/sru-server/1.0/</code> XML namespace. |
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[1889] | 82 | * </p> |
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[1881] | 83 | */ |
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[1889] | 84 | public final class SRUServerConfig { |
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[2622] | 85 | /** |
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[6779] | 86 | * Parameter constant for setting the minimum supported SRU version for this |
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| 87 | * SRU server. Must be smaller or equal to {@link #SRU_SUPPORTED_VERSION_MAX}. |
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| 88 | * <p> |
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| 89 | * Valid values: "<code>1.1</code>", "<code>1.2</code>" or " |
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| 90 | * <code>2.0</code>" (without quotation marks) |
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[6787] | 91 | * </p> |
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[6779] | 92 | */ |
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| 93 | public static final String SRU_SUPPORTED_VERSION_MIN = |
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| 94 | "eu.clarin.sru.server.sruSupportedVersionMin"; |
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| 95 | /** |
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| 96 | * Parameter constant for setting the maximum supported SRU version for this |
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| 97 | * SRU server. Must be larger or equal to {@link #SRU_SUPPORTED_VERSION_MIN}. |
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| 98 | * <p> |
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| 99 | * Valid values: "<code>1.1</code>", "<code>1.2</code>" or " |
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| 100 | * <code>2.0</code>" (without quotation marks) |
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[6787] | 101 | * </p> |
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[6779] | 102 | */ |
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| 103 | public static final String SRU_SUPPORTED_VERSION_MAX = |
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| 104 | "eu.clarin.sru.server.sruSupportedVersionMax"; |
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| 105 | /** |
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| 106 | * Parameter constant for setting the default SRU version for this SRU |
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| 107 | * server, e.g. for an <em>Explain</em> request without explicit version. |
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| 108 | * Must not me less than {@link #SRU_SUPPORTED_VERSION_MIN} or larger than |
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| 109 | * {@link #SRU_SUPPORTED_VERSION_MAX}. Defaults to |
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| 110 | * {@link #SRU_SUPPORTED_VERSION_MAX}. |
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| 111 | * <p> |
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| 112 | * Valid values: "<code>1.1</code>", "<code>1.2</code>" or " |
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| 113 | * <code>2.0</code>" (without quotation marks) |
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[6787] | 114 | * </p> |
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[6779] | 115 | */ |
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| 116 | public static final String SRU_SUPPORTED_VERSION_DEFAULT = |
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| 117 | "eu.clarin.sru.server.sruSupportedVersionDefault"; |
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| 118 | /** |
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[6787] | 119 | * Parameter constant for setting the namespace URIs for SRU 1.1 and SRU |
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| 120 | * 1.2. |
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| 121 | * <p> |
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[7158] | 122 | * Valid values: "<code>loc</code>" for Library Of Congress URI or " |
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| 123 | * <code>oasis</code>" for OASIS URIs (without quotation marks). |
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[6787] | 124 | * </p> |
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| 125 | */ |
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| 126 | public static final String SRU_LEGACY_NAMESPACE_MODE = |
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| 127 | "eu.clarin.sru.server.legacyNamespaceMode"; |
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| 128 | /** |
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[2622] | 129 | * Parameter constant for configuring the transports for this SRU server. |
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| 130 | * <p> |
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| 131 | * Valid values: "<code>http</code>", "<code>https</code>" or " |
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[6105] | 132 | * <code>http https</code>" (without quotation marks) <br> |
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[2622] | 133 | * <p> |
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| 134 | * Used as part of the <em>Explain</em> response. |
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| 135 | * </p> |
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| 136 | */ |
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| 137 | public static final String SRU_TRANSPORT = |
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| 138 | "eu.clarin.sru.server.transport"; |
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| 139 | /** |
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| 140 | * Parameter constant for configuring the host of this SRU server. |
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| 141 | * <p> |
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| 142 | * Valid values: any fully qualified hostname, e.g. |
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[6105] | 143 | * <code>sru.example.org</code> <br> |
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[2622] | 144 | * Used as part of the <em>Explain</em> response. |
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| 145 | * </p> |
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| 146 | */ |
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| 147 | public static final String SRU_HOST = |
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| 148 | "eu.clarin.sru.server.host"; |
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| 149 | /** |
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| 150 | * Parameter constant for configuring the port number of this SRU server. |
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| 151 | * <p> |
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[6105] | 152 | * Valid values: number between 1 and 65535 (typically 80 or 8080) <br> |
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[2622] | 153 | * Used as part of the <em>Explain</em> response. |
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| 154 | * </p> |
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| 155 | */ |
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| 156 | public static final String SRU_PORT = |
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| 157 | "eu.clarin.sru.server.port"; |
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| 158 | /** |
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| 159 | * Parameter constant for configuring the database of this SRU server. This |
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| 160 | * is usually the path component of the SRU servers URI. |
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| 161 | * <p> |
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[6105] | 162 | * Valid values: typically the path component if the SRU server URI. <br> |
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[2622] | 163 | * Used as part of the <em>Explain</em> response. |
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| 164 | * </p> |
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| 165 | */ |
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| 166 | public static final String SRU_DATABASE = |
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| 167 | "eu.clarin.sru.server.database"; |
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| 168 | /** |
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| 169 | * Parameter constant for configuring the <em>default</em> number of records |
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[2681] | 170 | * the SRU server will provide in the response to a <em>searchRetrieve</em> |
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| 171 | * request if the client does not provide this value. |
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[2622] | 172 | * <p> |
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| 173 | * Valid values: a integer greater than 0 (default value is 100) |
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| 174 | * </p> |
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| 175 | */ |
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| 176 | public static final String SRU_NUMBER_OF_RECORDS = |
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| 177 | "eu.clarin.sru.server.numberOfRecords"; |
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| 178 | /** |
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| 179 | * Parameter constant for configuring the <em>maximum</em> number of records |
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[2681] | 180 | * the SRU server will support in the response to a <em>searchRetrieve</em> |
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| 181 | * request. If a client requests more records, the number will be limited to |
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| 182 | * this value. |
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[2622] | 183 | * <p> |
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| 184 | * Valid values: a integer greater than 0 (default value is 250) |
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| 185 | * </p> |
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| 186 | */ |
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| 187 | public static final String SRU_MAXIMUM_RECORDS = |
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| 188 | "eu.clarin.sru.server.maximumRecords"; |
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| 189 | /** |
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[2681] | 190 | * Parameter constant for configuring the <em>default</em> number of terms |
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| 191 | * the SRU server will provide in the response to a <em>scan</em> request if |
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| 192 | * the client does not provide this value. |
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| 193 | * <p> |
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| 194 | * Valid values: a integer greater than 0 (default value is 250) |
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| 195 | * </p> |
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| 196 | */ |
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| 197 | public static final String SRU_NUMBER_OF_TERMS = |
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| 198 | "eu.clarin.sru.server.numberOfTerms"; |
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| 199 | /** |
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| 200 | * Parameter constant for configuring the <em>maximum</em> number of terms |
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| 201 | * the SRU server will support in the response to a <em>scan</em> request. |
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| 202 | * If a client requests more records, the number will be limited to this |
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| 203 | * value. |
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| 204 | * <p> |
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| 205 | * Valid values: a integer greater than 0 (default value is 500) |
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| 206 | * </p> |
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| 207 | */ |
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| 208 | public static final String SRU_MAXIMUM_TERMS = |
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| 209 | "eu.clarin.sru.server.maximumTerms"; |
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| 210 | /** |
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[2622] | 211 | * Parameter constant for configuring, if the SRU server will echo the |
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| 212 | * request. |
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| 213 | * <p> |
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| 214 | * Valid values: <code>true</code> or <code>false</code> |
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| 215 | * </p> |
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| 216 | */ |
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| 217 | public static final String SRU_ECHO_REQUESTS = |
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| 218 | "eu.clarin.sru.server.echoRequests"; |
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| 219 | /** |
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| 220 | * Parameter constant for configuring, if the SRU server pretty-print the |
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[2683] | 221 | * XML response. Setting this parameter can be useful for manual debugging |
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| 222 | * of the XML response, however it is <em>not recommended</em> for |
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| 223 | * production setups. |
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[2622] | 224 | * <p> |
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[2683] | 225 | * Valid values: any integer greater or equal to <code>-1</code> (default) |
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| 226 | * and less or equal to <code>8</code> |
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[2622] | 227 | * </p> |
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| 228 | */ |
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| 229 | public static final String SRU_INDENT_RESPONSE = |
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| 230 | "eu.clarin.sru.server.indentResponse"; |
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| 231 | /** |
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| 232 | * Parameter constant for configuring, if the SRU server will allow the |
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| 233 | * client to override the maximum number of records the server supports. |
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[2683] | 234 | * This parameter is solely intended for debugging and setting it to |
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| 235 | * <code>true</code> is <em>strongly</em> discouraged for production setups. |
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[2622] | 236 | * <p> |
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[2683] | 237 | * Valid values: <code>true</code> or <code>false</code> (default) |
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[2622] | 238 | * </p> |
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| 239 | */ |
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[1957] | 240 | public static final String SRU_ALLOW_OVERRIDE_MAXIMUM_RECORDS = |
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[2622] | 241 | "eu.clarin.sru.server.allowOverrideMaximumRecords"; |
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| 242 | /** |
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| 243 | * Parameter constant for configuring, if the SRU server will allow the |
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[2683] | 244 | * client to override the maximum number of terms the server supports. This |
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| 245 | * parameter is solely intended for debugging and setting it to |
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| 246 | * <code>true</code> it is <em>strongly</em> discouraged for production |
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| 247 | * setups. |
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[2681] | 248 | * <p> |
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[2683] | 249 | * Valid values: <code>true</code> or <code>false</code> (default) |
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[2681] | 250 | * </p> |
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| 251 | */ |
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| 252 | public static final String SRU_ALLOW_OVERRIDE_MAXIMUM_TERMS = |
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| 253 | "eu.clarin.sru.server.allowOverrideMaximumTerms"; |
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| 254 | /** |
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| 255 | * Parameter constant for configuring, if the SRU server will allow the |
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[2622] | 256 | * client to override the pretty-printing setting of the server. This |
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[2683] | 257 | * parameter is solely intended for debugging and setting it to |
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| 258 | * <code>true</code> it is <em>strongly</em> discouraged for production |
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| 259 | * setups. |
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[2622] | 260 | * <p> |
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[2683] | 261 | * Valid values: <code>true</code> or <code>false</code> (default) |
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[2622] | 262 | * </p> |
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| 263 | */ |
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| 264 | public static final String SRU_ALLOW_OVERRIDE_INDENT_RESPONSE = |
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| 265 | "eu.clarin.sru.server.allowOverrideIndentResponse"; |
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| 266 | /** |
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[2700] | 267 | * Parameter constant for configuring the size of response buffer. The |
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[2734] | 268 | * Servlet will buffer up to this amount of data before sending a response |
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[2700] | 269 | * to the client. This value specifies the size of the buffer in bytes. |
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[2698] | 270 | * <p> |
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| 271 | * Valid values: any positive integer (default 65536) |
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| 272 | * </p> |
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| 273 | */ |
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| 274 | public static final String SRU_RESPONSE_BUFFER_SIZE = |
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| 275 | "eu.clarin.sru.server.responseBufferSize"; |
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[6779] | 276 | private static final SRUVersion DEFAULT_SRU_VERSION_MIN = |
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| 277 | SRUVersion.VERSION_1_1; |
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| 278 | private static final SRUVersion DEFAULT_SRU_VERSION_MAX = |
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| 279 | SRUVersion.VERSION_1_2; |
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[6787] | 280 | private static final LegacyNamespaceMode DEFAULT_LEGACY_NAMESPACE_MODE = |
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| 281 | LegacyNamespaceMode.LOC; |
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[2698] | 282 | private static final int DEFAULT_NUMBER_OF_RECORDS = 100; |
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| 283 | private static final int DEFAULT_MAXIMUM_RECORDS = 250; |
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| 284 | private static final int DEFAULT_NUMBER_OF_TERMS = 250; |
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| 285 | private static final int DEFAULT_MAXIMUM_TERMS = 500; |
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| 286 | private static final int DEFAULT_RESPONSE_BUFFER_SIZE = 64 * 1024; |
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[1881] | 287 | private static final String CONFIG_FILE_NAMESPACE_URI = |
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| 288 | "http://www.clarin.eu/sru-server/1.0/"; |
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[1889] | 289 | private static final String CONFIG_FILE_SCHEMA_URL = |
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| 290 | "META-INF/sru-server-config.xsd"; |
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[6787] | 291 | public static enum LegacyNamespaceMode { |
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| 292 | LOC, OASIS |
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| 293 | } // enum LegacyNamespaceMode |
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[1881] | 294 | |
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| 295 | public static final class LocalizedString { |
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| 296 | private final boolean primary; |
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| 297 | private final String lang; |
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| 298 | private final String value; |
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| 299 | |
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| 300 | private LocalizedString(String value, String lang, boolean primary) { |
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| 301 | this.value = value; |
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| 302 | this.lang = lang; |
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| 303 | this.primary = primary; |
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| 304 | } |
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| 305 | |
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| 306 | private LocalizedString(String value, String lang) { |
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| 307 | this(value, lang, false); |
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| 308 | } |
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| 309 | |
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| 310 | public boolean isPrimary() { |
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| 311 | return primary; |
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| 312 | } |
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| 313 | |
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| 314 | public String getLang() { |
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| 315 | return lang; |
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| 316 | } |
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| 317 | |
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| 318 | public String getValue() { |
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| 319 | return value; |
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| 320 | } |
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| 321 | } // class LocalizedString |
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| 322 | |
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| 323 | public static final class DatabaseInfo { |
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| 324 | private final List<LocalizedString> title; |
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| 325 | private final List<LocalizedString> description; |
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| 326 | private final List<LocalizedString> author; |
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| 327 | private final List<LocalizedString> extent; |
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| 328 | private final List<LocalizedString> history; |
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| 329 | private final List<LocalizedString> langUsage; |
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| 330 | private final List<LocalizedString> restrictions; |
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| 331 | private final List<LocalizedString> subjects; |
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| 332 | private final List<LocalizedString> links; |
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| 333 | private final List<LocalizedString> implementation; |
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| 334 | |
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| 335 | private DatabaseInfo(List<LocalizedString> title, |
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| 336 | List<LocalizedString> description, |
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| 337 | List<LocalizedString> author, List<LocalizedString> extent, |
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| 338 | List<LocalizedString> history, List<LocalizedString> langUsage, |
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| 339 | List<LocalizedString> restrictions, |
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| 340 | List<LocalizedString> subjects, List<LocalizedString> links, |
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| 341 | List<LocalizedString> implementation) { |
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| 342 | if ((title != null) && !title.isEmpty()) { |
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| 343 | this.title = Collections.unmodifiableList(title); |
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| 344 | } else { |
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| 345 | this.title = null; |
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| 346 | } |
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| 347 | if ((description != null) && !description.isEmpty()) { |
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| 348 | this.description = Collections.unmodifiableList(description); |
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| 349 | } else { |
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| 350 | this.description = null; |
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| 351 | } |
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| 352 | if ((author != null) && !author.isEmpty()) { |
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| 353 | this.author = Collections.unmodifiableList(author); |
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| 354 | } else { |
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| 355 | this.author = null; |
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| 356 | } |
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| 357 | if ((extent != null) && !extent.isEmpty()) { |
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| 358 | this.extent = Collections.unmodifiableList(extent); |
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| 359 | } else { |
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| 360 | this.extent = null; |
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| 361 | } |
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| 362 | if ((history != null) && !history.isEmpty()) { |
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| 363 | this.history = Collections.unmodifiableList(history); |
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| 364 | } else { |
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| 365 | this.history = null; |
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| 366 | } |
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| 367 | if ((langUsage != null) && !langUsage.isEmpty()) { |
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| 368 | this.langUsage = Collections.unmodifiableList(langUsage); |
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| 369 | } else { |
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| 370 | this.langUsage = null; |
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| 371 | } |
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| 372 | if ((restrictions != null) && !restrictions.isEmpty()) { |
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| 373 | this.restrictions = Collections.unmodifiableList(restrictions); |
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| 374 | } else { |
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| 375 | this.restrictions = null; |
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| 376 | } |
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| 377 | if ((subjects != null) && !subjects.isEmpty()) { |
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| 378 | this.subjects = Collections.unmodifiableList(subjects); |
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| 379 | } else { |
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| 380 | this.subjects = null; |
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| 381 | } |
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| 382 | if ((links != null) && !links.isEmpty()) { |
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| 383 | this.links = Collections.unmodifiableList(links); |
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| 384 | } else { |
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| 385 | this.links = null; |
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| 386 | } |
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| 387 | if ((implementation != null) && !implementation.isEmpty()) { |
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| 388 | this.implementation = |
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| 389 | Collections.unmodifiableList(implementation); |
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| 390 | } else { |
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| 391 | this.implementation = null; |
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| 392 | } |
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| 393 | } |
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| 394 | |
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| 395 | public List<LocalizedString> getTitle() { |
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| 396 | return title; |
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| 397 | } |
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| 398 | |
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| 399 | public List<LocalizedString> getDescription() { |
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| 400 | return description; |
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| 401 | } |
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| 402 | |
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| 403 | public List<LocalizedString> getAuthor() { |
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| 404 | return author; |
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| 405 | } |
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| 406 | |
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| 407 | public List<LocalizedString> getExtend() { |
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| 408 | return extent; |
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| 409 | } |
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| 410 | |
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| 411 | public List<LocalizedString> getHistory() { |
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| 412 | return history; |
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| 413 | } |
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| 414 | |
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| 415 | public List<LocalizedString> getLangUsage() { |
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| 416 | return langUsage; |
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| 417 | } |
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| 418 | |
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| 419 | public List<LocalizedString> getRestrictions() { |
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| 420 | return restrictions; |
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| 421 | } |
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| 422 | |
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| 423 | public List<LocalizedString> getSubjects() { |
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| 424 | return subjects; |
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| 425 | } |
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| 426 | |
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| 427 | public List<LocalizedString> getLinks() { |
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| 428 | return links; |
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| 429 | } |
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| 430 | |
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| 431 | public List<LocalizedString> getImplementation() { |
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| 432 | return implementation; |
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| 433 | } |
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| 434 | } // class DatabaseInfo |
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| 435 | |
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| 436 | public static class SchemaInfo { |
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| 437 | private final String identifier; |
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| 438 | private final String name; |
---|
| 439 | private final String location; |
---|
| 440 | private final boolean sort; |
---|
| 441 | private final boolean retrieve; |
---|
| 442 | private final List<LocalizedString> title; |
---|
| 443 | |
---|
| 444 | private SchemaInfo(String identifier, String name, String location, |
---|
| 445 | boolean sort, boolean retieve, List<LocalizedString> title) { |
---|
| 446 | this.identifier = identifier; |
---|
| 447 | this.name = name; |
---|
| 448 | this.location = location; |
---|
| 449 | this.sort = sort; |
---|
| 450 | this.retrieve = retieve; |
---|
| 451 | if ((title != null) && !title.isEmpty()) { |
---|
| 452 | this.title = Collections.unmodifiableList(title); |
---|
| 453 | } else { |
---|
| 454 | this.title = null; |
---|
| 455 | } |
---|
| 456 | } |
---|
| 457 | |
---|
| 458 | |
---|
| 459 | public String getIdentifier() { |
---|
| 460 | return identifier; |
---|
| 461 | } |
---|
| 462 | |
---|
| 463 | |
---|
| 464 | public String getName() { |
---|
| 465 | return name; |
---|
| 466 | } |
---|
| 467 | |
---|
| 468 | |
---|
| 469 | public String getLocation() { |
---|
| 470 | return location; |
---|
| 471 | } |
---|
| 472 | |
---|
| 473 | |
---|
| 474 | public boolean getSort() { |
---|
| 475 | return sort; |
---|
| 476 | } |
---|
| 477 | |
---|
| 478 | |
---|
| 479 | public boolean getRetrieve() { |
---|
| 480 | return retrieve; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | |
---|
| 484 | public List<LocalizedString> getTitle() { |
---|
| 485 | return title; |
---|
| 486 | } |
---|
| 487 | } // class SchemaInfo |
---|
| 488 | |
---|
| 489 | |
---|
| 490 | public static class IndexInfo { |
---|
| 491 | public static class Set { |
---|
| 492 | private final String identifier; |
---|
| 493 | private final String name; |
---|
| 494 | private final List<LocalizedString> title; |
---|
| 495 | |
---|
| 496 | private Set(String identifier, String name, List<LocalizedString> title) { |
---|
| 497 | this.identifier = identifier; |
---|
| 498 | this.name = name; |
---|
| 499 | if ((title != null) && !title.isEmpty()) { |
---|
| 500 | this.title = Collections.unmodifiableList(title); |
---|
| 501 | } else { |
---|
| 502 | this.title = null; |
---|
| 503 | } |
---|
| 504 | } |
---|
| 505 | |
---|
| 506 | public String getIdentifier() { |
---|
| 507 | return identifier; |
---|
| 508 | } |
---|
| 509 | |
---|
| 510 | public String getName() { |
---|
| 511 | return name; |
---|
| 512 | } |
---|
| 513 | |
---|
| 514 | public List<LocalizedString> getTitle() { |
---|
| 515 | return title; |
---|
| 516 | } |
---|
| 517 | } // class IndexInfo.Set |
---|
| 518 | |
---|
| 519 | public static class Index { |
---|
| 520 | public static class Map { |
---|
| 521 | private final boolean primary; |
---|
| 522 | private final String set; |
---|
| 523 | private final String name; |
---|
| 524 | |
---|
| 525 | private Map(boolean primary, String set, String name) { |
---|
| 526 | this.primary = primary; |
---|
| 527 | this.set = set; |
---|
| 528 | this.name = name; |
---|
| 529 | } |
---|
| 530 | |
---|
| 531 | public boolean isPrimary() { |
---|
| 532 | return primary; |
---|
| 533 | } |
---|
| 534 | |
---|
| 535 | public String getSet() { |
---|
| 536 | return set; |
---|
| 537 | } |
---|
| 538 | |
---|
| 539 | public String getName() { |
---|
| 540 | return name; |
---|
| 541 | } |
---|
| 542 | } // class IndexInfo.Index.Map |
---|
| 543 | private final List<LocalizedString> title; |
---|
| 544 | private final boolean can_search; |
---|
| 545 | private final boolean can_scan; |
---|
| 546 | private final boolean can_sort; |
---|
| 547 | private final List<Index.Map> maps; |
---|
| 548 | |
---|
| 549 | |
---|
| 550 | public Index(List<LocalizedString> title, boolean can_search, |
---|
| 551 | boolean can_scan, boolean can_sort, List<Map> maps) { |
---|
| 552 | if ((title != null) && !title.isEmpty()) { |
---|
| 553 | this.title = Collections.unmodifiableList(title); |
---|
| 554 | } else { |
---|
| 555 | this.title = null; |
---|
| 556 | } |
---|
| 557 | this.can_search = can_search; |
---|
| 558 | this.can_scan = can_scan; |
---|
| 559 | this.can_sort = can_sort; |
---|
| 560 | this.maps = maps; |
---|
| 561 | } |
---|
| 562 | |
---|
| 563 | |
---|
| 564 | public List<LocalizedString> getTitle() { |
---|
| 565 | return title; |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | |
---|
| 569 | public boolean canSearch() { |
---|
| 570 | return can_search; |
---|
| 571 | } |
---|
| 572 | |
---|
| 573 | |
---|
| 574 | public boolean canScan() { |
---|
| 575 | return can_scan; |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | |
---|
| 579 | public boolean canSort() { |
---|
| 580 | return can_sort; |
---|
| 581 | } |
---|
| 582 | |
---|
| 583 | |
---|
| 584 | public List<Index.Map> getMaps() { |
---|
| 585 | return maps; |
---|
| 586 | } |
---|
| 587 | |
---|
| 588 | } // class Index |
---|
| 589 | |
---|
| 590 | private final List<IndexInfo.Set> sets; |
---|
| 591 | private final List<IndexInfo.Index> indexes; |
---|
| 592 | |
---|
| 593 | private IndexInfo(List<IndexInfo.Set> sets, List<IndexInfo.Index> indexes) { |
---|
| 594 | if ((sets != null) && !sets.isEmpty()) { |
---|
| 595 | this.sets = Collections.unmodifiableList(sets); |
---|
| 596 | } else { |
---|
| 597 | this.sets = null; |
---|
| 598 | } |
---|
| 599 | if ((indexes != null) && !indexes.isEmpty()) { |
---|
| 600 | this.indexes = Collections.unmodifiableList(indexes); |
---|
| 601 | } else { |
---|
| 602 | this.indexes = null; |
---|
| 603 | } |
---|
| 604 | } |
---|
| 605 | |
---|
| 606 | |
---|
| 607 | public List<IndexInfo.Set> getSets() { |
---|
| 608 | return sets; |
---|
| 609 | } |
---|
| 610 | |
---|
| 611 | |
---|
| 612 | public List<IndexInfo.Index> getIndexes() { |
---|
| 613 | return indexes; |
---|
| 614 | } |
---|
| 615 | } // IndexInfo |
---|
| 616 | |
---|
[6779] | 617 | private final SRUVersion minVersion; |
---|
| 618 | private final SRUVersion maxVersion; |
---|
| 619 | private final SRUVersion defaultVersion; |
---|
[6787] | 620 | private final LegacyNamespaceMode legacyNamespaceMode; |
---|
[1881] | 621 | private final String transport; |
---|
| 622 | private final String host; |
---|
[1957] | 623 | private final int port; |
---|
[1881] | 624 | private final String database; |
---|
[1957] | 625 | private final int numberOfRecords; |
---|
| 626 | private final int maximumRecords; |
---|
[2681] | 627 | private final int numberOfTerms; |
---|
| 628 | private final int maximumTerms; |
---|
[1881] | 629 | private final boolean echoRequests; |
---|
[1957] | 630 | private final int indentResponse; |
---|
[2698] | 631 | private final int responseBufferSize; |
---|
[1957] | 632 | private final boolean allowOverrideMaximumRecords; |
---|
[2681] | 633 | private final boolean allowOverrideMaximumTerms; |
---|
[1957] | 634 | private final boolean allowOverrideIndentResponse; |
---|
[1881] | 635 | private final String baseUrl; |
---|
| 636 | private final DatabaseInfo databaseInfo; |
---|
| 637 | private final IndexInfo indexInfo; |
---|
| 638 | private final List<SchemaInfo> schemaInfo; |
---|
| 639 | |
---|
| 640 | |
---|
[6787] | 641 | private SRUServerConfig(SRUVersion minVersion, |
---|
| 642 | SRUVersion maxVersion, |
---|
| 643 | SRUVersion defaultVersion, |
---|
| 644 | LegacyNamespaceMode legacyNamespaceMode, |
---|
| 645 | String transport, |
---|
| 646 | String host, |
---|
| 647 | int port, |
---|
| 648 | String database, |
---|
| 649 | int numberOfRecords, |
---|
| 650 | int maximumRecords, |
---|
| 651 | int numberOfTerms, |
---|
| 652 | int maximumTerms, |
---|
| 653 | boolean echoRequests, |
---|
| 654 | int indentResponse, |
---|
| 655 | int responseBufferSize, |
---|
[2698] | 656 | boolean allowOverrideMaximumRecords, |
---|
[2681] | 657 | boolean allowOverrideMaximumTerms, |
---|
[6787] | 658 | boolean allowOverrideIndentResponse, |
---|
| 659 | DatabaseInfo databaseinfo, |
---|
| 660 | IndexInfo indexInfo, |
---|
[6825] | 661 | List<SchemaInfo> schemaInfo) { |
---|
[6779] | 662 | this.minVersion = minVersion; |
---|
| 663 | this.maxVersion = maxVersion; |
---|
| 664 | this.defaultVersion = defaultVersion; |
---|
[6787] | 665 | this.legacyNamespaceMode = legacyNamespaceMode; |
---|
[1957] | 666 | this.transport = transport; |
---|
| 667 | this.host = host; |
---|
| 668 | this.port = port; |
---|
| 669 | this.database = database; |
---|
| 670 | this.numberOfRecords = numberOfRecords; |
---|
| 671 | this.maximumRecords = maximumRecords; |
---|
[2681] | 672 | this.numberOfTerms = numberOfTerms; |
---|
| 673 | this.maximumTerms = maximumTerms; |
---|
[1957] | 674 | this.echoRequests = echoRequests; |
---|
| 675 | this.indentResponse = indentResponse; |
---|
[2698] | 676 | this.responseBufferSize = responseBufferSize; |
---|
[1957] | 677 | this.allowOverrideMaximumRecords = allowOverrideMaximumRecords; |
---|
[2681] | 678 | this.allowOverrideMaximumTerms = allowOverrideMaximumTerms; |
---|
[1957] | 679 | this.allowOverrideIndentResponse = allowOverrideIndentResponse; |
---|
| 680 | this.databaseInfo = databaseinfo; |
---|
| 681 | this.indexInfo = indexInfo; |
---|
[1881] | 682 | if ((schemaInfo != null) && !schemaInfo.isEmpty()) { |
---|
| 683 | this.schemaInfo = Collections.unmodifiableList(schemaInfo); |
---|
| 684 | } else { |
---|
| 685 | this.schemaInfo = null; |
---|
| 686 | } |
---|
| 687 | |
---|
| 688 | // build baseUrl |
---|
| 689 | StringBuilder sb = new StringBuilder(); |
---|
| 690 | sb.append(host); |
---|
[1957] | 691 | if (port != 80) { |
---|
[1881] | 692 | sb.append(":").append(port); |
---|
| 693 | } |
---|
| 694 | sb.append("/").append(database); |
---|
| 695 | this.baseUrl = sb.toString(); |
---|
| 696 | } |
---|
| 697 | |
---|
| 698 | |
---|
[6779] | 699 | public SRUVersion getMinVersion() { |
---|
| 700 | return minVersion; |
---|
| 701 | } |
---|
| 702 | |
---|
| 703 | |
---|
| 704 | public SRUVersion getMaxVersion() { |
---|
| 705 | return maxVersion; |
---|
| 706 | } |
---|
| 707 | |
---|
| 708 | |
---|
[1881] | 709 | public SRUVersion getDefaultVersion() { |
---|
[6779] | 710 | return defaultVersion; |
---|
[1881] | 711 | } |
---|
| 712 | |
---|
| 713 | |
---|
[6787] | 714 | public LegacyNamespaceMode getLegacyNamespaceMode() { |
---|
| 715 | return legacyNamespaceMode; |
---|
| 716 | } |
---|
| 717 | |
---|
| 718 | |
---|
[6816] | 719 | public SRURecordXmlEscaping getDefaultRecordXmlEscaping() { |
---|
| 720 | return SRURecordXmlEscaping.XML; |
---|
| 721 | } |
---|
| 722 | |
---|
| 723 | |
---|
[5899] | 724 | public SRURecordPacking getDefaultRecordPacking() { |
---|
[6816] | 725 | return SRURecordPacking.PACKED; |
---|
[1881] | 726 | } |
---|
| 727 | |
---|
| 728 | |
---|
| 729 | public boolean getEchoRequests() { |
---|
| 730 | return echoRequests; |
---|
| 731 | } |
---|
| 732 | |
---|
| 733 | |
---|
| 734 | public String getTransports() { |
---|
| 735 | return transport; |
---|
| 736 | } |
---|
| 737 | |
---|
| 738 | |
---|
| 739 | public String getHost() { |
---|
| 740 | return host; |
---|
| 741 | } |
---|
| 742 | |
---|
| 743 | |
---|
[1957] | 744 | public int getPort() { |
---|
[1881] | 745 | return port; |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | |
---|
| 749 | public String getDatabase() { |
---|
| 750 | return database; |
---|
| 751 | } |
---|
| 752 | |
---|
| 753 | |
---|
| 754 | public String getBaseUrl() { |
---|
| 755 | return baseUrl; |
---|
| 756 | } |
---|
| 757 | |
---|
| 758 | |
---|
[1957] | 759 | public int getNumberOfRecords() { |
---|
| 760 | return numberOfRecords; |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | |
---|
| 764 | public int getMaximumRecords() { |
---|
| 765 | return maximumRecords; |
---|
| 766 | } |
---|
| 767 | |
---|
| 768 | |
---|
[2681] | 769 | public int getNumberOfTerms() { |
---|
| 770 | return numberOfTerms; |
---|
| 771 | } |
---|
| 772 | |
---|
| 773 | |
---|
| 774 | public int getMaximumTerms() { |
---|
| 775 | return maximumTerms; |
---|
| 776 | } |
---|
| 777 | |
---|
| 778 | |
---|
[1957] | 779 | public int getIndentResponse() { |
---|
| 780 | return indentResponse; |
---|
| 781 | } |
---|
| 782 | |
---|
| 783 | |
---|
| 784 | public boolean allowOverrideMaximumRecords() { |
---|
| 785 | return allowOverrideMaximumRecords; |
---|
| 786 | } |
---|
| 787 | |
---|
| 788 | |
---|
[2681] | 789 | public boolean allowOverrideMaximumTerms() { |
---|
| 790 | return allowOverrideMaximumTerms; |
---|
| 791 | } |
---|
| 792 | |
---|
| 793 | |
---|
[1957] | 794 | public boolean allowOverrideIndentResponse() { |
---|
| 795 | return allowOverrideIndentResponse; |
---|
| 796 | } |
---|
| 797 | |
---|
| 798 | |
---|
[2698] | 799 | public int getResponseBufferSize() { |
---|
| 800 | return responseBufferSize; |
---|
| 801 | } |
---|
| 802 | |
---|
| 803 | |
---|
[1881] | 804 | public DatabaseInfo getDatabaseInfo() { |
---|
| 805 | return databaseInfo; |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | |
---|
| 809 | public IndexInfo getIndexInfo() { |
---|
| 810 | return indexInfo; |
---|
| 811 | } |
---|
| 812 | |
---|
| 813 | |
---|
| 814 | public List<SchemaInfo> getSchemaInfo() { |
---|
| 815 | return schemaInfo; |
---|
| 816 | } |
---|
| 817 | |
---|
| 818 | |
---|
| 819 | public String getRecordSchemaIdentifier(String recordSchemaName) { |
---|
| 820 | if (recordSchemaName != null) { |
---|
| 821 | if ((schemaInfo != null) && !schemaInfo.isEmpty()) { |
---|
| 822 | for (SchemaInfo schema : schemaInfo) { |
---|
[1982] | 823 | if (schema.getName().equals(recordSchemaName)) { |
---|
[1881] | 824 | return schema.getIdentifier(); |
---|
| 825 | } |
---|
| 826 | } |
---|
| 827 | } |
---|
| 828 | } |
---|
| 829 | return null; |
---|
| 830 | } |
---|
| 831 | |
---|
| 832 | |
---|
| 833 | public String getRecordSchemaName(String schemaIdentifier) { |
---|
| 834 | if (schemaIdentifier != null) { |
---|
| 835 | if ((schemaInfo != null) && !schemaInfo.isEmpty()) { |
---|
| 836 | for (SchemaInfo schema : schemaInfo) { |
---|
[1982] | 837 | if (schema.getIdentifier().equals(schemaIdentifier)) { |
---|
[1881] | 838 | return schema.getName(); |
---|
| 839 | } |
---|
| 840 | } |
---|
| 841 | } |
---|
| 842 | } |
---|
| 843 | return null; |
---|
| 844 | } |
---|
| 845 | |
---|
| 846 | |
---|
[1982] | 847 | public SchemaInfo findSchemaInfo(String value) { |
---|
| 848 | if (value != null) { |
---|
| 849 | if ((schemaInfo != null) && !schemaInfo.isEmpty()) { |
---|
| 850 | for (SchemaInfo schema : schemaInfo) { |
---|
| 851 | if (schema.getIdentifier().equals(value) || |
---|
| 852 | schema.getName().equals(value)) { |
---|
| 853 | return schema; |
---|
| 854 | } |
---|
| 855 | } |
---|
| 856 | } |
---|
| 857 | } |
---|
| 858 | return null; |
---|
| 859 | } |
---|
| 860 | |
---|
| 861 | |
---|
[1881] | 862 | /** |
---|
[1889] | 863 | * Parse a SRU server XML configuration file and create an configuration |
---|
| 864 | * object from it. |
---|
[1957] | 865 | * |
---|
[1881] | 866 | * @param params |
---|
| 867 | * additional settings |
---|
[1889] | 868 | * @param configFile |
---|
| 869 | * an {@link URL} pointing to the XML configuration file |
---|
[1881] | 870 | * @return a initialized <code>SRUEndpointConfig</code> instance |
---|
| 871 | * @throws NullPointerException |
---|
[1889] | 872 | * if <em>params</em> or <em>configFile</em> is |
---|
| 873 | * <code>null</code> |
---|
[1881] | 874 | * @throws SRUConfigException |
---|
[1889] | 875 | * if an error occurred |
---|
[1881] | 876 | */ |
---|
[1889] | 877 | public static SRUServerConfig parse(Map<String, String> params, |
---|
| 878 | URL configFile) throws SRUConfigException { |
---|
[1881] | 879 | if (params == null) { |
---|
| 880 | throw new NullPointerException("params == null"); |
---|
| 881 | } |
---|
[1889] | 882 | if (configFile == null) { |
---|
[1881] | 883 | throw new NullPointerException("in == null"); |
---|
| 884 | } |
---|
| 885 | try { |
---|
[1889] | 886 | URL url = SRUServerConfig.class.getClassLoader() |
---|
| 887 | .getResource(CONFIG_FILE_SCHEMA_URL); |
---|
[1881] | 888 | if (url == null) { |
---|
[1889] | 889 | throw new SRUConfigException("cannot open \"" + |
---|
| 890 | CONFIG_FILE_SCHEMA_URL + "\""); |
---|
[1881] | 891 | } |
---|
| 892 | SchemaFactory sfactory = |
---|
| 893 | SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI); |
---|
| 894 | Schema schema = sfactory.newSchema(url); |
---|
| 895 | DocumentBuilderFactory factory = |
---|
| 896 | DocumentBuilderFactory.newInstance(); |
---|
| 897 | factory.setNamespaceAware(true); |
---|
| 898 | factory.setSchema(schema); |
---|
| 899 | factory.setIgnoringElementContentWhitespace(true); |
---|
| 900 | factory.setIgnoringComments(true); |
---|
| 901 | factory.setValidating(false); |
---|
| 902 | |
---|
| 903 | // parse input |
---|
| 904 | DocumentBuilder builder = factory.newDocumentBuilder(); |
---|
[1889] | 905 | InputSource input = new InputSource(configFile.openStream()); |
---|
[1881] | 906 | input.setPublicId(CONFIG_FILE_NAMESPACE_URI); |
---|
| 907 | input.setSystemId(CONFIG_FILE_NAMESPACE_URI); |
---|
| 908 | Document doc = builder.parse(input); |
---|
| 909 | |
---|
| 910 | // validate |
---|
| 911 | Source source = new DOMSource(doc); |
---|
| 912 | Validator validator = schema.newValidator(); |
---|
| 913 | validator.setErrorHandler(new DefaultHandler() { |
---|
| 914 | @Override |
---|
| 915 | public void error(SAXParseException e) throws SAXException { |
---|
| 916 | fatalError(e); |
---|
| 917 | } |
---|
| 918 | |
---|
| 919 | @Override |
---|
| 920 | public void fatalError(SAXParseException e) throws SAXException { |
---|
| 921 | throw new SAXException( |
---|
| 922 | "error parsing endpoint configuration file", e); |
---|
| 923 | } |
---|
| 924 | }); |
---|
| 925 | validator.validate(source); |
---|
| 926 | |
---|
| 927 | |
---|
| 928 | XPathFactory xfactory = XPathFactory.newInstance(); |
---|
| 929 | XPath xpath = xfactory.newXPath(); |
---|
| 930 | xpath.setNamespaceContext(new NamespaceContext() { |
---|
| 931 | @Override |
---|
[7229] | 932 | public Iterator<String> getPrefixes(String namespaceURI) { |
---|
[1881] | 933 | throw new UnsupportedOperationException(); |
---|
| 934 | } |
---|
| 935 | |
---|
| 936 | @Override |
---|
| 937 | public String getPrefix(String namespaceURI) { |
---|
| 938 | throw new UnsupportedOperationException(); |
---|
| 939 | } |
---|
| 940 | |
---|
| 941 | @Override |
---|
| 942 | public String getNamespaceURI(String prefix) { |
---|
| 943 | if (prefix == null) { |
---|
| 944 | throw new NullPointerException("prefix == null"); |
---|
| 945 | } |
---|
| 946 | if (prefix.equals("sru")) { |
---|
[1883] | 947 | return CONFIG_FILE_NAMESPACE_URI; |
---|
[1881] | 948 | } else if (prefix.equals(XMLConstants.XML_NS_PREFIX)) { |
---|
| 949 | return XMLConstants.XML_NS_URI; |
---|
| 950 | } else { |
---|
| 951 | return XMLConstants.NULL_NS_URI; |
---|
| 952 | } |
---|
| 953 | } |
---|
| 954 | }); |
---|
| 955 | |
---|
| 956 | DatabaseInfo databaseInfo = buildDatabaseInfo(xpath, doc); |
---|
| 957 | |
---|
| 958 | IndexInfo indexInfo = buildIndexInfo(xpath, doc); |
---|
| 959 | |
---|
| 960 | List<SchemaInfo> schemaInfo = buildSchemaInfo(xpath, doc); |
---|
| 961 | |
---|
[2622] | 962 | /* |
---|
[6779] | 963 | * fetch parameters more parameters (usually passed from Servlet |
---|
| 964 | * context) |
---|
[2622] | 965 | */ |
---|
[6779] | 966 | |
---|
| 967 | SRUVersion minVersion = parseVersionNumber(params, |
---|
| 968 | SRU_SUPPORTED_VERSION_MIN, false, DEFAULT_SRU_VERSION_MIN); |
---|
| 969 | |
---|
| 970 | SRUVersion maxVersion = parseVersionNumber(params, |
---|
| 971 | SRU_SUPPORTED_VERSION_MAX, false, DEFAULT_SRU_VERSION_MAX); |
---|
| 972 | if (maxVersion.compareTo(minVersion) < 0) { |
---|
| 973 | throw new SRUConfigException( |
---|
| 974 | "parameter value \"" + SRU_SUPPORTED_VERSION_MAX + |
---|
| 975 | "\" (" + maxVersion.getVersionString() + |
---|
| 976 | ") must be equal or larger than value of parameter \"" + |
---|
| 977 | SRU_SUPPORTED_VERSION_MIN + "\" (" + |
---|
| 978 | minVersion.getVersionString() + ")"); |
---|
| 979 | } |
---|
| 980 | |
---|
| 981 | SRUVersion defaultVersion = parseVersionNumber(params, |
---|
| 982 | SRU_SUPPORTED_VERSION_DEFAULT, false, maxVersion); |
---|
| 983 | if ((defaultVersion.compareTo(minVersion) < 0) || |
---|
| 984 | (defaultVersion.compareTo(maxVersion) > 0)) { |
---|
| 985 | throw new SRUConfigException( |
---|
| 986 | "parameter value \"" + SRU_SUPPORTED_VERSION_DEFAULT + |
---|
| 987 | "\" (" + defaultVersion.getVersionString() + |
---|
| 988 | ") must be between value of parameter \"" + |
---|
| 989 | SRU_SUPPORTED_VERSION_MIN + "\" (" + |
---|
| 990 | minVersion.getVersionString() + ") and \"" + |
---|
| 991 | SRU_SUPPORTED_VERSION_MAX + "\" (" + |
---|
| 992 | maxVersion.getVersionString() + ")"); |
---|
| 993 | } |
---|
| 994 | |
---|
[6787] | 995 | LegacyNamespaceMode legacyNamespaceMode = |
---|
| 996 | DEFAULT_LEGACY_NAMESPACE_MODE; |
---|
| 997 | String mode = params.get(SRU_LEGACY_NAMESPACE_MODE); |
---|
| 998 | if ((mode != null) && !mode.isEmpty()) { |
---|
| 999 | if ("loc".equals(mode)) { |
---|
| 1000 | legacyNamespaceMode = LegacyNamespaceMode.LOC; |
---|
| 1001 | } else if ("oasis".equals(mode)) { |
---|
| 1002 | legacyNamespaceMode = LegacyNamespaceMode.OASIS; |
---|
| 1003 | } else { |
---|
| 1004 | throw new SRUConfigException( |
---|
| 1005 | "invalid value for parameter \"" + |
---|
| 1006 | SRU_LEGACY_NAMESPACE_MODE + "\": " + mode); |
---|
| 1007 | } |
---|
| 1008 | } |
---|
| 1009 | |
---|
[1881] | 1010 | String transport = params.get(SRU_TRANSPORT); |
---|
| 1011 | if ((transport == null) || transport.isEmpty()) { |
---|
| 1012 | throw new SRUConfigException("parameter \"" + SRU_TRANSPORT + |
---|
| 1013 | "\" is mandatory"); |
---|
| 1014 | } else { |
---|
| 1015 | StringBuilder sb = new StringBuilder(); |
---|
| 1016 | StringTokenizer st = new StringTokenizer(transport); |
---|
| 1017 | while (st.hasMoreTokens()) { |
---|
| 1018 | String s = st.nextToken().trim().toLowerCase(); |
---|
| 1019 | if (!("http".equals(s) || "https".equals(s))) { |
---|
| 1020 | throw new SRUConfigException( |
---|
| 1021 | "unsupported transport \"" + s + "\""); |
---|
| 1022 | } |
---|
| 1023 | if (sb.length() > 0) { |
---|
| 1024 | sb.append(" "); |
---|
| 1025 | } |
---|
| 1026 | sb.append(s); |
---|
| 1027 | } // while |
---|
| 1028 | transport = sb.toString(); |
---|
| 1029 | } |
---|
| 1030 | |
---|
| 1031 | String host = params.get(SRU_HOST); |
---|
| 1032 | if ((host == null) || host.isEmpty()) { |
---|
| 1033 | throw new SRUConfigException("parameter \"" + SRU_HOST + |
---|
| 1034 | "\" is mandatory"); |
---|
| 1035 | } |
---|
| 1036 | |
---|
[1957] | 1037 | int port = parseNumber(params, SRU_PORT, true, -1, 1, 65535); |
---|
[1881] | 1038 | |
---|
| 1039 | String database = params.get(SRU_DATABASE); |
---|
| 1040 | if ((database == null) || database.isEmpty()) { |
---|
| 1041 | throw new SRUConfigException("parameter \"" + SRU_DATABASE + |
---|
| 1042 | "\" is mandatory"); |
---|
| 1043 | } |
---|
| 1044 | |
---|
[1957] | 1045 | // cleanup: remove leading slashed |
---|
[1889] | 1046 | while (database.startsWith("/")) { |
---|
| 1047 | database = database.substring(1); |
---|
| 1048 | } |
---|
| 1049 | |
---|
[1881] | 1050 | |
---|
[1957] | 1051 | int numberOfRecords = parseNumber(params, SRU_NUMBER_OF_RECORDS, |
---|
| 1052 | false, DEFAULT_NUMBER_OF_RECORDS, 1, -1); |
---|
| 1053 | |
---|
| 1054 | int maximumRecords = parseNumber(params, SRU_MAXIMUM_RECORDS, |
---|
| 1055 | false, DEFAULT_MAXIMUM_RECORDS, numberOfRecords, -1); |
---|
| 1056 | |
---|
[2681] | 1057 | int numberOfTerms = parseNumber(params, SRU_NUMBER_OF_TERMS, |
---|
| 1058 | false, DEFAULT_NUMBER_OF_TERMS, 0, -1); |
---|
| 1059 | |
---|
| 1060 | int maximumTerms = parseNumber(params, SRU_MAXIMUM_TERMS, false, |
---|
| 1061 | DEFAULT_MAXIMUM_TERMS, numberOfTerms, -1); |
---|
| 1062 | |
---|
[1957] | 1063 | boolean echoRequests = parseBoolean(params, SRU_ECHO_REQUESTS, |
---|
| 1064 | false, true); |
---|
| 1065 | |
---|
| 1066 | int indentResponse = parseNumber(params, SRU_INDENT_RESPONSE, |
---|
| 1067 | false, -1, -1, 8); |
---|
| 1068 | |
---|
| 1069 | boolean allowOverrideMaximumRecords = parseBoolean(params, |
---|
| 1070 | SRU_ALLOW_OVERRIDE_MAXIMUM_RECORDS, false, false); |
---|
| 1071 | |
---|
[2681] | 1072 | boolean allowOverrideMaximumTerms = parseBoolean(params, |
---|
| 1073 | SRU_ALLOW_OVERRIDE_MAXIMUM_TERMS, false, false); |
---|
| 1074 | |
---|
[1957] | 1075 | boolean allowOverrideIndentResponse = parseBoolean(params, |
---|
| 1076 | SRU_ALLOW_OVERRIDE_INDENT_RESPONSE, false, false); |
---|
| 1077 | |
---|
[2698] | 1078 | int responseBufferSize = parseNumber(params, |
---|
| 1079 | SRU_RESPONSE_BUFFER_SIZE, false, |
---|
| 1080 | DEFAULT_RESPONSE_BUFFER_SIZE, 0, -1); |
---|
| 1081 | |
---|
[6787] | 1082 | return new SRUServerConfig(minVersion, |
---|
| 1083 | maxVersion, |
---|
| 1084 | defaultVersion, |
---|
| 1085 | legacyNamespaceMode, |
---|
| 1086 | transport, |
---|
| 1087 | host, |
---|
| 1088 | port, |
---|
| 1089 | database, |
---|
| 1090 | numberOfRecords, |
---|
| 1091 | maximumRecords, |
---|
| 1092 | numberOfTerms, |
---|
| 1093 | maximumTerms, |
---|
| 1094 | echoRequests, |
---|
| 1095 | indentResponse, |
---|
| 1096 | responseBufferSize, |
---|
| 1097 | allowOverrideMaximumRecords, |
---|
| 1098 | allowOverrideMaximumTerms, |
---|
| 1099 | allowOverrideIndentResponse, |
---|
| 1100 | databaseInfo, |
---|
| 1101 | indexInfo, |
---|
[6825] | 1102 | schemaInfo); |
---|
[1889] | 1103 | } catch (IOException e) { |
---|
| 1104 | throw new SRUConfigException("error reading configuration file", e); |
---|
| 1105 | } catch (XPathException e) { |
---|
| 1106 | throw new SRUConfigException("error parsing configuration file", e); |
---|
| 1107 | } catch (ParserConfigurationException e) { |
---|
| 1108 | throw new SRUConfigException("error parsing configuration file", e); |
---|
| 1109 | } catch (SAXException e) { |
---|
| 1110 | throw new SRUConfigException("error parsing configuration file", e); |
---|
[1881] | 1111 | } |
---|
| 1112 | } |
---|
| 1113 | |
---|
| 1114 | |
---|
[6779] | 1115 | private static SRUVersion parseVersionNumber(Map<String, String> params, |
---|
| 1116 | String name, boolean mandatory, SRUVersion defaultValue) |
---|
| 1117 | throws SRUConfigException { |
---|
| 1118 | String value = params.get(name); |
---|
| 1119 | if ((value == null) || value.isEmpty()) { |
---|
| 1120 | if (mandatory) { |
---|
| 1121 | throw new SRUConfigException( |
---|
| 1122 | "parameter \"" + name + "\" is mandatory"); |
---|
| 1123 | } else { |
---|
| 1124 | return defaultValue; |
---|
| 1125 | } |
---|
| 1126 | } else { |
---|
| 1127 | if ("1.1".equals(value)) { |
---|
| 1128 | return SRUVersion.VERSION_1_1; |
---|
| 1129 | } else if ("1.2".equals(value)) { |
---|
| 1130 | return SRUVersion.VERSION_1_2; |
---|
| 1131 | } else if ("2.0".equals(value)) { |
---|
| 1132 | return SRUVersion.VERSION_2_0; |
---|
| 1133 | } else { |
---|
| 1134 | throw new SRUConfigException("invalid value for parameter \"" + |
---|
| 1135 | name + "\": " + value); |
---|
| 1136 | } |
---|
| 1137 | } |
---|
| 1138 | } |
---|
| 1139 | |
---|
| 1140 | |
---|
[1957] | 1141 | private static int parseNumber(Map<String, String> params, String name, |
---|
| 1142 | boolean mandatory, int defaultValue, int minValue, int maxValue) |
---|
| 1143 | throws SRUConfigException { |
---|
| 1144 | String value = params.get(name); |
---|
| 1145 | if ((value == null) || value.isEmpty()) { |
---|
| 1146 | if (mandatory) { |
---|
| 1147 | throw new SRUConfigException("parameter \"" + name + |
---|
| 1148 | "\" is mandatory"); |
---|
| 1149 | } else { |
---|
| 1150 | return defaultValue; |
---|
| 1151 | } |
---|
| 1152 | } else { |
---|
| 1153 | try { |
---|
| 1154 | int num = Integer.parseInt(value); |
---|
| 1155 | |
---|
| 1156 | // sanity checks |
---|
| 1157 | if ((minValue != -1) && (maxValue != -1)) { |
---|
| 1158 | if ((num < minValue) || (num > maxValue)) { |
---|
| 1159 | throw new SRUConfigException("parameter \"" + name + |
---|
| 1160 | "\" must be between " + minValue + " and " + |
---|
| 1161 | maxValue + ": " + num); |
---|
| 1162 | } |
---|
| 1163 | } else { |
---|
| 1164 | if ((minValue != -1) && (num < minValue)) { |
---|
| 1165 | throw new SRUConfigException("parameter \"" + name + |
---|
| 1166 | "\" must be larger than " + minValue + ": " + |
---|
| 1167 | num); |
---|
| 1168 | |
---|
| 1169 | } |
---|
| 1170 | if ((maxValue != -1) && (num > maxValue)) { |
---|
| 1171 | throw new SRUConfigException("parameter \"" + name + |
---|
| 1172 | "\" must be smaller than " + maxValue + ": " + |
---|
| 1173 | num); |
---|
| 1174 | } |
---|
| 1175 | } |
---|
| 1176 | return num; |
---|
| 1177 | } catch (NumberFormatException e) { |
---|
| 1178 | throw new SRUConfigException("parameter \"" + name + |
---|
| 1179 | "\" must be nummerical and less than " + |
---|
| 1180 | Integer.MAX_VALUE + ": " + value); |
---|
| 1181 | } |
---|
| 1182 | } |
---|
| 1183 | } |
---|
| 1184 | |
---|
| 1185 | |
---|
| 1186 | private static boolean parseBoolean(Map<String, String> params, |
---|
| 1187 | String name, boolean mandatory, boolean defaultValue) |
---|
| 1188 | throws SRUConfigException { |
---|
| 1189 | String value = params.get(name); |
---|
| 1190 | if ((value == null) || value.isEmpty()) { |
---|
| 1191 | if (mandatory) { |
---|
| 1192 | throw new SRUConfigException("parameter \"" + name + |
---|
| 1193 | "\" is mandatory"); |
---|
| 1194 | } else { |
---|
| 1195 | return defaultValue; |
---|
| 1196 | } |
---|
| 1197 | } else { |
---|
[2103] | 1198 | return Boolean.valueOf(value); |
---|
[1957] | 1199 | } |
---|
| 1200 | } |
---|
| 1201 | |
---|
| 1202 | |
---|
[1881] | 1203 | private static DatabaseInfo buildDatabaseInfo(XPath xpath, Document doc) |
---|
| 1204 | throws SRUConfigException, XPathExpressionException { |
---|
| 1205 | List<LocalizedString> title = buildList(xpath, doc, |
---|
| 1206 | "//sru:databaseInfo/sru:title"); |
---|
| 1207 | List<LocalizedString> description = buildList(xpath, doc, |
---|
| 1208 | "//sru:databaseInfo/sru:description"); |
---|
| 1209 | List<LocalizedString> author = buildList(xpath, doc, |
---|
| 1210 | "//sru:databaseInfo/sru:author"); |
---|
| 1211 | List<LocalizedString> extent = buildList(xpath, doc, |
---|
| 1212 | "//sru:databaseInfo/sru:extent"); |
---|
| 1213 | List<LocalizedString> history = buildList(xpath, doc, |
---|
| 1214 | "//sru:databaseInfo/sru:history"); |
---|
| 1215 | List<LocalizedString> langUsage = buildList(xpath, doc, |
---|
| 1216 | "//sru:databaseInfo/sru:langUsage"); |
---|
| 1217 | List<LocalizedString> restrictions = buildList(xpath, doc, |
---|
| 1218 | "//sru:databaseInfo/sru:restrictions"); |
---|
| 1219 | List<LocalizedString> subjects = buildList(xpath, doc, |
---|
| 1220 | "//sru:databaseInfo/sru:subjects"); |
---|
| 1221 | List<LocalizedString> links = buildList(xpath, doc, |
---|
| 1222 | "//sru:databaseInfo/sru:links"); |
---|
| 1223 | List<LocalizedString> implementation = buildList(xpath, doc, |
---|
| 1224 | "//sru:databaseInfo/sru:implementation"); |
---|
| 1225 | return new DatabaseInfo(title, description, author, extent, history, |
---|
| 1226 | langUsage, restrictions, subjects, links, implementation); |
---|
| 1227 | } |
---|
| 1228 | |
---|
| 1229 | |
---|
| 1230 | private static IndexInfo buildIndexInfo(XPath xpath, Document doc) |
---|
| 1231 | throws SRUConfigException, XPathExpressionException { |
---|
| 1232 | List<IndexInfo.Set> sets = null; |
---|
| 1233 | List<IndexInfo.Index> indexes = null; |
---|
| 1234 | |
---|
| 1235 | XPathExpression expr = xpath.compile("//sru:indexInfo/sru:set"); |
---|
| 1236 | NodeList result = (NodeList) expr.evaluate(doc, XPathConstants.NODESET); |
---|
| 1237 | if (result.getLength() > 0) { |
---|
[7282] | 1238 | sets = new ArrayList<>(result.getLength()); |
---|
[1881] | 1239 | for (int i = 0; i < result.getLength(); i++) { |
---|
| 1240 | Element e = (Element) result.item(i); |
---|
| 1241 | String identifier = e.getAttribute("identifier"); |
---|
| 1242 | String name = e.getAttribute("name"); |
---|
[1890] | 1243 | if (identifier.isEmpty()) { |
---|
| 1244 | throw new SRUConfigException("attribute 'identifier' may "+ |
---|
| 1245 | "on element '/indexInfo/set' may not be empty"); |
---|
| 1246 | } |
---|
| 1247 | if (name.isEmpty()) { |
---|
| 1248 | throw new SRUConfigException("attribute 'name' may on " + |
---|
| 1249 | "element '/indexInfo/set' may not be empty"); |
---|
| 1250 | } |
---|
[1881] | 1251 | List<LocalizedString> title = |
---|
| 1252 | fromNodeList(e.getElementsByTagName("title")); |
---|
| 1253 | sets.add(new IndexInfo.Set(identifier, name, title)); |
---|
| 1254 | } |
---|
| 1255 | } // sets |
---|
| 1256 | |
---|
| 1257 | expr = xpath.compile("//sru:indexInfo/sru:index"); |
---|
| 1258 | result = (NodeList) expr.evaluate(doc, XPathConstants.NODESET); |
---|
| 1259 | if (result.getLength() > 0) { |
---|
[7282] | 1260 | indexes = new ArrayList<>(result.getLength()); |
---|
[1881] | 1261 | for (int i = 0; i < result.getLength(); i++) { |
---|
| 1262 | Element e = (Element) result.item(i); |
---|
| 1263 | List<LocalizedString> title = |
---|
| 1264 | fromNodeList(e.getElementsByTagName("title")); |
---|
| 1265 | boolean can_search = getBooleanAttr(e, "search", false); |
---|
| 1266 | boolean can_scan = getBooleanAttr(e, "scan", false); |
---|
| 1267 | boolean can_sort = getBooleanAttr(e, "sort", false); |
---|
| 1268 | List<IndexInfo.Index.Map> maps = null; |
---|
| 1269 | NodeList result2 = e.getElementsByTagName("map"); |
---|
| 1270 | if ((result2 != null) && (result2.getLength() > 0)) { |
---|
[7282] | 1271 | maps = new ArrayList<>( |
---|
[1881] | 1272 | result2.getLength()); |
---|
| 1273 | boolean foundPrimary = false; |
---|
| 1274 | for (int j = 0; j < result2.getLength(); j++) { |
---|
| 1275 | Element e2 = (Element) result2.item(j); |
---|
| 1276 | boolean primary = getBooleanAttr(e2, "primary", false); |
---|
| 1277 | if (primary) { |
---|
| 1278 | if (foundPrimary) { |
---|
| 1279 | throw new SRUConfigException("only one map " + |
---|
| 1280 | "may be 'primary' in index"); |
---|
| 1281 | } |
---|
| 1282 | foundPrimary = true; |
---|
| 1283 | } |
---|
[1890] | 1284 | String set = null; |
---|
| 1285 | String name = null; |
---|
| 1286 | NodeList result3 = e2.getElementsByTagName("name"); |
---|
| 1287 | if ((result3 != null) && (result3.getLength() > 0)) { |
---|
| 1288 | Element e3 = (Element) result3.item(0); |
---|
| 1289 | set = e3.getAttribute("set"); |
---|
| 1290 | name = e3.getTextContent(); |
---|
| 1291 | if (set.isEmpty()) { |
---|
| 1292 | throw new SRUConfigException("attribute 'set'" + |
---|
[1957] | 1293 | " on element '/indexInfo/index/map/" + |
---|
[1890] | 1294 | "name' may not be empty"); |
---|
| 1295 | } |
---|
| 1296 | if ((name == null) || name.isEmpty()) { |
---|
| 1297 | throw new SRUConfigException("element " + |
---|
| 1298 | "'/indexInfo/index/map/name' may not " + |
---|
| 1299 | "be empty"); |
---|
| 1300 | } |
---|
| 1301 | } |
---|
[1881] | 1302 | maps.add(new IndexInfo.Index.Map(primary, set, name)); |
---|
| 1303 | } |
---|
| 1304 | } |
---|
[1890] | 1305 | indexes.add(new IndexInfo.Index(title, can_search, can_scan, |
---|
| 1306 | can_sort, maps)); |
---|
[1881] | 1307 | } // for |
---|
[1957] | 1308 | |
---|
[1890] | 1309 | // sanity check (/index/map/name/@set exists in any set/@name) |
---|
| 1310 | if (sets != null) { |
---|
| 1311 | for (IndexInfo.Index index : indexes) { |
---|
| 1312 | if (index.getMaps() != null) { |
---|
| 1313 | for (IndexInfo.Index.Map maps : index.getMaps()) { |
---|
| 1314 | if (findSetByName(sets, maps.getSet()) == null) { |
---|
| 1315 | throw new SRUConfigException("/index/map/" + |
---|
| 1316 | "name refers to nonexitsing set (" + |
---|
| 1317 | maps.getSet() + ")"); |
---|
| 1318 | } |
---|
| 1319 | } |
---|
| 1320 | } |
---|
| 1321 | } |
---|
| 1322 | } |
---|
[1881] | 1323 | } // if |
---|
| 1324 | return new IndexInfo(sets, indexes); |
---|
| 1325 | } |
---|
| 1326 | |
---|
| 1327 | |
---|
| 1328 | private static List<SchemaInfo> buildSchemaInfo(XPath xpath, Document doc) |
---|
| 1329 | throws SRUConfigException, XPathExpressionException { |
---|
| 1330 | List<SchemaInfo> schemaInfos = null; |
---|
| 1331 | XPathExpression expr = xpath.compile("//sru:schemaInfo/sru:schema"); |
---|
| 1332 | NodeList result = (NodeList) expr.evaluate(doc, XPathConstants.NODESET); |
---|
| 1333 | if (result.getLength() > 0) { |
---|
[7282] | 1334 | schemaInfos = new ArrayList<>(result.getLength()); |
---|
[1881] | 1335 | for (int i = 0; i < result.getLength(); i++) { |
---|
| 1336 | Element e = (Element) result.item(i); |
---|
| 1337 | String identifier = e.getAttribute("identifier"); |
---|
| 1338 | String name = e.getAttribute("name"); |
---|
| 1339 | String location = e.getAttribute("location"); |
---|
| 1340 | if ((location != null) && location.isEmpty()) { |
---|
| 1341 | location = null; |
---|
| 1342 | } |
---|
| 1343 | boolean sort = getBooleanAttr(e, "sort", false); |
---|
| 1344 | boolean retrieve = getBooleanAttr(e, "retrieve", true); |
---|
| 1345 | List<LocalizedString> title = |
---|
| 1346 | fromNodeList(e.getElementsByTagName("title")); |
---|
| 1347 | schemaInfos.add(new SchemaInfo(identifier, name, location, |
---|
| 1348 | sort, retrieve, title)); |
---|
| 1349 | } |
---|
| 1350 | } |
---|
| 1351 | return schemaInfos; |
---|
| 1352 | } |
---|
| 1353 | |
---|
| 1354 | |
---|
[1890] | 1355 | private static IndexInfo.Set findSetByName(List<IndexInfo.Set> sets, |
---|
| 1356 | String name) { |
---|
| 1357 | for (IndexInfo.Set set : sets) { |
---|
| 1358 | if (set.getName().equals(name)) { |
---|
| 1359 | return set; |
---|
| 1360 | } |
---|
| 1361 | } |
---|
| 1362 | return null; |
---|
| 1363 | } |
---|
| 1364 | |
---|
[1957] | 1365 | |
---|
[1881] | 1366 | private static List<LocalizedString> buildList(XPath xpath, Document doc, |
---|
| 1367 | String expression) throws SRUConfigException, |
---|
| 1368 | XPathExpressionException { |
---|
| 1369 | XPathExpression expr = xpath.compile(expression); |
---|
| 1370 | NodeList result = (NodeList) expr.evaluate(doc, XPathConstants.NODESET); |
---|
| 1371 | return fromNodeList(result); |
---|
| 1372 | } |
---|
| 1373 | |
---|
| 1374 | |
---|
| 1375 | private static List<LocalizedString> fromNodeList(NodeList nodes) |
---|
| 1376 | throws SRUConfigException { |
---|
| 1377 | List<LocalizedString> list = null; |
---|
| 1378 | if (nodes.getLength() > 0) { |
---|
[7282] | 1379 | list = new ArrayList<>(nodes.getLength()); |
---|
[1881] | 1380 | boolean foundPrimary = false; |
---|
| 1381 | for (int i = 0; i < nodes.getLength(); i++) { |
---|
| 1382 | Element e = (Element) nodes.item(i); |
---|
| 1383 | boolean primary = getBooleanAttr(e, "primary", false); |
---|
| 1384 | if (primary) { |
---|
| 1385 | if (foundPrimary) { |
---|
| 1386 | throw new SRUConfigException("list may only contain " |
---|
| 1387 | + "one element as primary"); |
---|
| 1388 | } |
---|
| 1389 | foundPrimary = true; |
---|
| 1390 | } |
---|
| 1391 | list.add(new LocalizedString(e.getTextContent(), |
---|
| 1392 | e.getAttributeNS(XMLConstants.XML_NS_URI, "lang"), |
---|
| 1393 | primary)); |
---|
| 1394 | } |
---|
| 1395 | } |
---|
| 1396 | return list; |
---|
| 1397 | } |
---|
| 1398 | |
---|
| 1399 | |
---|
| 1400 | private static boolean getBooleanAttr(Element e, String localName, |
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| 1401 | boolean defaultValue) { |
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| 1402 | boolean result = defaultValue; |
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| 1403 | Attr attr = e.getAttributeNode(localName); |
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| 1404 | if ((attr != null) && attr.getSpecified()) { |
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[2103] | 1405 | result = Boolean.valueOf(attr.getValue()); |
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[1881] | 1406 | } |
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| 1407 | return result; |
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| 1408 | } |
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| 1409 | |
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[6934] | 1410 | } // class SRUServerConfig |
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