1 | package eu.clarin.cmdi.mdservice.action; |
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2 | |
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3 | import java.io.BufferedInputStream; |
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4 | import java.io.BufferedReader; |
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5 | import java.io.File; |
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6 | import java.io.FileInputStream; |
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7 | import java.io.IOException; |
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8 | import java.io.InputStream; |
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9 | import java.io.InputStreamReader; |
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10 | import java.net.MalformedURLException; |
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11 | import java.net.URISyntaxException; |
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12 | import java.net.URL; |
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13 | import java.util.HashMap; |
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14 | |
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15 | import javax.servlet.http.HttpServletRequest; |
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16 | import javax.servlet.http.HttpSession; |
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17 | import javax.xml.transform.TransformerException; |
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18 | |
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19 | import net.sf.json.JSON; |
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20 | import net.sf.json.JSONArray; |
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21 | import net.sf.json.JSONObject; |
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22 | import net.sf.json.JSONSerializer; |
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23 | //import net.sf.saxon.Controller; |
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24 | //import net.sf.saxon.event.MessageEmitter; |
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25 | |
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26 | |
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27 | import org.apache.struts2.interceptor.ServletRequestAware; |
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28 | import com.opensymphony.xwork2.ActionSupport; |
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29 | import eu.clarin.cmdi.mdservice.model.Diagnostics; |
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30 | |
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31 | /** |
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32 | * main Struts2 controller (ie implemenets the struts' execute()-method), all other Actions are derived from. |
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33 | * Defines the methods used for retrieving the data |
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34 | * and provides basic implementation where possible. |
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35 | * |
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36 | * @author vronk |
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37 | */ |
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38 | public class GenericProxyAction extends ActionSupport |
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39 | implements ServletRequestAware |
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40 | { |
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41 | |
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42 | private static final long serialVersionUID = 1L; |
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43 | |
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44 | private static JSONArray repositories = null; |
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45 | private static JSONObject wp_options = null; |
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46 | |
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47 | private Diagnostics diagnostics; |
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48 | /** |
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49 | * Properties to be filled by Struts with according request-parameters |
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50 | */ |
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51 | private String actionkey; |
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52 | private String q; |
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53 | private String squery; |
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54 | private String cache = Cache.USE; |
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55 | private String collection; |
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56 | private String columns; |
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57 | private String startItem; |
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58 | private String maximumItems; |
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59 | private String sort; |
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60 | private String lang="en"; |
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61 | private int maxdepth; |
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62 | private String format; |
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63 | private String options; |
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64 | private String actionContentType; |
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65 | private String userMsg; |
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66 | private String repository; |
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67 | //private Map<String,Object> session; |
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68 | private HttpServletRequest request; |
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69 | private long duration = 0; |
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70 | private InputStream resultStream; |
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71 | private InputStream sourceStream; |
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72 | protected URL base_url ; |
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73 | |
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74 | public GenericProxyAction(){ |
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75 | super(); |
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76 | initialize(); |
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77 | } |
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78 | |
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79 | public void setRepositoryByIndex(int id){ |
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80 | try { |
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81 | setRepositories(GenericProxyAction.createRepositories()); |
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82 | // static repositories |
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83 | net.sf.json.JSONArray json = getRepositories(); |
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84 | if (json.size() > 0){ |
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85 | repository = json.getJSONObject(id).getString("name"); |
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86 | } |
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87 | } catch (IOException e) { |
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88 | // TODO Auto-generated catch block |
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89 | e.printStackTrace(); |
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90 | } catch (InterruptedException e) { |
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91 | // TODO Auto-generated catch block |
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92 | e.printStackTrace(); |
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93 | } catch (TransformerException e) { |
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94 | // TODO Auto-generated catch block |
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95 | e.printStackTrace(); |
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96 | } catch (NoStylesheetException e) { |
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97 | // TODO Auto-generated catch block |
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98 | e.printStackTrace(); |
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99 | } |
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100 | } |
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101 | |
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102 | protected void initialize(){ |
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103 | //repository = 1; |
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104 | setRepositoryByIndex(0); |
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105 | } |
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106 | |
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107 | |
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108 | public Diagnostics getDiagnostics(){ |
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109 | return this.diagnostics; |
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110 | } |
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111 | |
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112 | public void setDiagnostics(Diagnostics diagnostics){ |
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113 | this.diagnostics = diagnostics; |
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114 | } |
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115 | public Diagnostics Diagnostics(){ |
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116 | if (diagnostics == null){ |
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117 | diagnostics = new Diagnostics(); |
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118 | } |
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119 | return this.diagnostics; |
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120 | } |
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121 | public String getQ() { |
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122 | return q; |
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123 | } |
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124 | |
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125 | public void setQ(String pq) { |
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126 | if (pq == null) pq=""; |
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127 | /* |
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128 | if (q != null){ |
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129 | if (q.trim().length() == 0){ |
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130 | q = null; |
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131 | } |
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132 | } |
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133 | */ |
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134 | this.q = pq; |
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135 | } |
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136 | |
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137 | public String getSquery() { |
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138 | return squery; |
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139 | } |
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140 | |
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141 | public void setSquery(String psquery) { |
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142 | if (psquery==null) psquery=""; |
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143 | this.squery = psquery; |
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144 | } |
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145 | |
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146 | public String getCache() { |
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147 | return cache; |
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148 | } |
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149 | |
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150 | public void setCache(String cache) { |
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151 | this.cache = cache; |
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152 | } |
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153 | |
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154 | public String getCollection() { |
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155 | return collection; |
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156 | } |
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157 | |
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158 | public void setCollection(String collection) { |
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159 | this.collection = collection; |
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160 | } |
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161 | |
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162 | //TODO defaults |
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163 | public String getColumns() { |
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164 | String cols = columns; |
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165 | /*if (columns == null){ |
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166 | cols = "Id,Name,Title"; |
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167 | } |
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168 | */ |
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169 | return cols; |
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170 | } |
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171 | |
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172 | public void setColumns(String columns) { |
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173 | this.columns = columns; |
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174 | } |
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175 | |
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176 | public int getMaxdepth() { |
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177 | return maxdepth; |
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178 | } |
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179 | |
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180 | public void setMaxdepth(int maxdepth) { |
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181 | this.maxdepth = maxdepth; |
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182 | } |
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183 | |
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184 | public String getFormat() { |
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185 | return format; |
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186 | } |
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187 | |
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188 | public void setFormat(String format) { |
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189 | this.format = format; |
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190 | } |
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191 | |
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192 | public String getOptions() { |
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193 | return options; |
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194 | } |
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195 | |
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196 | public void setOptions(String options) { |
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197 | this.options = options; |
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198 | } |
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199 | |
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200 | /** |
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201 | * is used in struts.xml to dynamically set the mime-type of the result, depending on the format-parameter |
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202 | * @return |
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203 | */ |
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204 | public String getActionContentType() { |
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205 | if (format.toLowerCase().startsWith("html")) { |
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206 | this.actionContentType = "text/html"; |
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207 | //this.actionContentType = "application/xhtml+xml"; |
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208 | } else { |
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209 | this.actionContentType = "text/xml"; |
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210 | } |
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211 | |
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212 | return actionContentType; |
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213 | } |
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214 | |
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215 | public void setActionContentType(String actionContentType) { |
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216 | this.actionContentType = actionContentType; |
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217 | } |
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218 | |
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219 | |
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220 | public void setRepository(String repository) { |
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221 | this.repository = repository; |
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222 | } |
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223 | |
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224 | public String getRepository() { |
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225 | //default repository = 1 (set on init) |
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226 | return repository; |
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227 | } |
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228 | public String getActionkey() { |
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229 | return actionkey; |
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230 | } |
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231 | |
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232 | public void setActionkey(String actionKey) { |
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233 | actionkey = actionKey; |
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234 | } |
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235 | |
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236 | |
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237 | public String getStartItem() { |
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238 | return startItem; |
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239 | } |
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240 | |
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241 | public void setStartItem(String startItem) { |
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242 | this.startItem = startItem; |
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243 | } |
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244 | |
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245 | public String getMaximumItems() { |
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246 | return maximumItems; |
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247 | } |
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248 | |
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249 | public void setMaximumItems(String maximumItems) { |
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250 | this.maximumItems = maximumItems; |
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251 | } |
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252 | |
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253 | |
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254 | public String getSort() { |
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255 | return sort; |
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256 | } |
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257 | |
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258 | public void setSort(String sort) { |
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259 | this.sort = sort; |
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260 | } |
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261 | |
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262 | public String getLang() { |
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263 | return lang; |
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264 | } |
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265 | |
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266 | public void setLang(String lang) { |
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267 | this.lang = lang; |
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268 | } |
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269 | |
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270 | public String getFullFormat() { |
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271 | return actionkey + "2" + format; |
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272 | } |
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273 | |
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274 | /** |
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275 | * internal identification of the target-proxy |
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276 | * base for finding the right base_url in the properties |
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277 | * subclass has to override with its specific proxykey |
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278 | * @return the key identifying this type of proxy |
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279 | */ |
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280 | public String getProxyKey() { |
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281 | return ""; |
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282 | } |
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283 | |
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284 | /** |
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285 | * TODO: check what this does, where it is used? |
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286 | * @return |
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287 | */ |
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288 | public String getUserMsg() { |
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289 | return userMsg; |
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290 | } |
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291 | |
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292 | public void setUserMsg(String userMsg) { |
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293 | this.userMsg = this.userMsg + "\n" + userMsg; |
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294 | } |
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295 | |
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296 | /** |
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297 | * TODO: check what this does, where it is used? |
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298 | * @return |
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299 | */ |
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300 | @Override |
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301 | public void setServletRequest(HttpServletRequest arg0) { |
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302 | request = arg0; |
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303 | } |
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304 | |
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305 | public HttpServletRequest getServletRequest() { |
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306 | return request; |
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307 | } |
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308 | |
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309 | /** |
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310 | * The stream holding the resulting data to be sent back to the user as response |
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311 | * @return |
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312 | */ |
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313 | public InputStream getResultStream() { |
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314 | return resultStream; |
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315 | } |
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316 | public void setResultStream(InputStream _resultStream){ |
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317 | resultStream = _resultStream; |
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318 | } |
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319 | public void setSourceStream(InputStream _sourceStream){ |
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320 | sourceStream = _sourceStream; |
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321 | } |
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322 | |
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323 | /* |
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324 | public InputStream getSourceStream() throws IOException { |
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325 | return getTargetRequest().openStream(); |
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326 | } |
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327 | */ |
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328 | |
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329 | public JSONArray getRepositories(){ |
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330 | return repositories; |
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331 | } |
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332 | |
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333 | public void setRepositories(JSONArray rep){ |
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334 | GenericProxyAction.repositories = rep; |
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335 | } |
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336 | |
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337 | public JSONObject getWPOptions(){ |
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338 | return wp_options; |
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339 | } |
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340 | |
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341 | public void setWPOptions(JSONObject op){ |
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342 | GenericProxyAction.wp_options = op; |
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343 | } |
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344 | |
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345 | /** |
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346 | * Reads URI from the configuration (mdservice.properties) based on the proxy-key |
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347 | * @return the base-URI of the target repository or registry |
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348 | */ |
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349 | public String getBaseURI() { |
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350 | String uri =Admin.getConfig().getProperty(getProxyKey() + ".uri"); |
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351 | return uri; |
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352 | } |
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353 | |
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354 | /** |
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355 | * Provides the base-URL specific to given target repository or registry |
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356 | * @return |
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357 | * @throws MalformedURLException |
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358 | */ |
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359 | public URL getBaseURL() throws MalformedURLException { |
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360 | if (base_url == null) { |
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361 | base_url = new URL(getBaseURI());//Admin.getConfig().getProperty(getProxyKey() + ".uri")); |
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362 | } |
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363 | return base_url; |
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364 | } |
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365 | |
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366 | /** |
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367 | * Constructs the actual URL to be send to the target repository/registry |
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368 | * It has to be overridden by the subclasses |
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369 | * as every target service has a different request-pattern. |
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370 | * @return URL of the target request |
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371 | * @throws IOException |
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372 | */ |
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373 | public URL getTargetRequest() throws IOException { |
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374 | URL targetURL = getBaseURL(); |
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375 | return targetURL; |
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376 | } |
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377 | |
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378 | /** |
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379 | * Constructs an unambiguous key for the request (encoding all the parameters). |
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380 | * This is used as identifier for caching |
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381 | * @return key unambiguously encoding the request |
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382 | */ |
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383 | |
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384 | public String getRequestKey() { |
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385 | String key=""; |
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386 | if (getActionkey()!=null) { |
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387 | key += getActionkey() + "//-" ; |
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388 | }else { |
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389 | key +="//-" ; |
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390 | } |
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391 | if (getQ()!=null) { |
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392 | key += getQ() + "//-" ; |
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393 | } else { |
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394 | key +="//-" ; |
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395 | } |
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396 | if (getCollection()!=null) { |
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397 | key += getCollection() + "//-"; |
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398 | } else { |
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399 | key +="//-" ; |
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400 | } |
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401 | if (getSquery()!=null) { |
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402 | key += getSquery() + "//-" ; |
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403 | } else { |
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404 | key +="//-" ; |
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405 | } |
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406 | if (getStartItem()!=null) { |
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407 | key += getStartItem() + "//-"; |
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408 | } |
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409 | else{ |
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410 | key +="//-" ; |
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411 | } |
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412 | if (getMaximumItems()!=null) { |
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413 | key += getMaximumItems() + "//-"; |
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414 | } |
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415 | else{ |
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416 | key +="//-" ; |
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417 | } |
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418 | |
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419 | key += getRepository() + "//-"; |
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420 | key += getMaxdepth() + "//-"; |
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421 | |
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422 | if (getLang()!=null) { |
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423 | key += getLang() + "//-"; |
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424 | }else{ |
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425 | key +="//-" ; |
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426 | } |
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427 | |
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428 | return key; |
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429 | } |
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430 | |
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431 | |
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432 | public InputStream getSourceStream() throws IOException, NoStylesheetException { |
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433 | return getTargetRequest().openStream(); |
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434 | |
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435 | } |
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436 | |
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437 | /* |
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438 | * TODO: this should go to Utilities! |
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439 | */ |
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440 | public static String convertStreamToString(InputStream is) { |
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441 | |
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442 | BufferedReader reader = new BufferedReader(new InputStreamReader(is)); |
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443 | StringBuilder sb = new StringBuilder(); |
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444 | String line = null; |
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445 | |
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446 | try { |
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447 | while ((line = reader.readLine()) != null) { |
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448 | sb.append(line + "\n"); |
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449 | } |
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450 | } catch (IOException e) { |
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451 | // TODO Auto-generated catch block |
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452 | e.printStackTrace(); |
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453 | } finally { |
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454 | try { |
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455 | is.close(); |
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456 | } catch (IOException e) { |
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457 | // TODO Auto-generated catch block |
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458 | e.printStackTrace(); |
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459 | } |
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460 | try { |
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461 | is.reset(); |
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462 | } catch (IOException e) { |
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463 | // TODO Auto-generated catch block |
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464 | e.printStackTrace(); |
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465 | } |
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466 | } |
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467 | |
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468 | |
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469 | return sb.toString(); |
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470 | } |
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471 | |
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472 | |
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473 | public static JSONArray createRepositories() throws IOException, InterruptedException, TransformerException, NoStylesheetException{ |
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474 | String path = Admin.getConfig().getProperty("workspaceprofile.path") + WorkspaceAction.WORKSPACE_FILENAME;//PROFILENAME_SERVER; |
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475 | File file=new File(path); |
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476 | InputStream in = new BufferedInputStream( new FileInputStream(path));; |
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477 | |
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478 | MDTransformer transformer = new MDTransformer(); |
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479 | transformer.setSrcFile(file.toURI().toURL()); |
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480 | transformer.setParams(MDTransformer.createParamsMap("xml2json")); |
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481 | InputStream jsonstream = transformer.transformXML(in); |
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482 | |
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483 | JSONObject json = JSONObject.fromObject(convertStreamToString(jsonstream)); |
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484 | JSONArray wparray = json.getJSONObject("Profiles").getJSONArray("WorkspaceProfiles"); |
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485 | JSONArray array = null; |
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486 | for (int i = 0; i < wparray.size(); ++i) { |
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487 | JSONObject wp = wparray.getJSONObject(i); |
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488 | if (wp.get("Repositories") != null){ |
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489 | array = wp.getJSONArray("Repositories"); |
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490 | break; |
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491 | } |
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492 | } |
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493 | |
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494 | // repository as static variable |
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495 | return array; |
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496 | |
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497 | // repository as session attribute |
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498 | /* |
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499 | HttpSession session = getServletRequest().getSession(); |
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500 | //JSONArray param = (JSONArray) session.getAttribute("repositories"); |
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501 | JSONArray param = new JSONArray(); |
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502 | param.add(array); |
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503 | session.setAttribute("repositories", param); |
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504 | */ |
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505 | } |
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506 | |
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507 | public static JSONObject createWPOptions() throws IOException, InterruptedException, TransformerException, NoStylesheetException{ |
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508 | String path = Admin.getConfig().getProperty("workspaceprofile.path") + WorkspaceAction.WORKSPACE_FILENAME;//PROFILENAME_SERVER; |
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509 | File file=new File(path); |
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510 | InputStream in = new BufferedInputStream( new FileInputStream(path));; |
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511 | |
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512 | MDTransformer transformer = new MDTransformer(); |
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513 | transformer.setSrcFile(file.toURI().toURL()); |
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514 | transformer.setParams(MDTransformer.createParamsMap("xml2json")); |
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515 | InputStream jsonstream = transformer.transformXML(in); |
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516 | |
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517 | JSONObject json = JSONObject.fromObject(convertStreamToString(jsonstream)); |
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518 | JSONArray wparray = json.getJSONObject("Profiles").getJSONArray("WorkspaceProfiles"); |
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519 | JSONObject obj = null; |
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520 | for (int i = 0; i < wparray.size(); ++i) { |
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521 | JSONObject wp = wparray.getJSONObject(i); |
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522 | if (wp.get("Options") != null){ |
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523 | obj = wp.getJSONObject("Options"); |
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524 | break; |
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525 | } |
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526 | } |
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527 | |
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528 | // options as static variable |
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529 | return obj; |
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530 | |
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531 | } |
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532 | |
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533 | public String getWPOption(String opt_key){ |
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534 | String option_val = null; |
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535 | |
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536 | |
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537 | if (wp_options == null ) { |
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538 | try { |
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539 | setWPOptions(GenericProxyAction.createWPOptions()); |
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540 | } catch (IOException e) { |
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541 | // TODO Auto-generated catch block |
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542 | e.printStackTrace(); |
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543 | } catch (InterruptedException e) { |
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544 | // TODO Auto-generated catch block |
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545 | e.printStackTrace(); |
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546 | } catch (TransformerException e) { |
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547 | // TODO Auto-generated catch block |
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548 | e.printStackTrace(); |
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549 | } catch (NoStylesheetException e) { |
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550 | // TODO Auto-generated catch block |
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551 | e.printStackTrace(); |
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552 | } |
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553 | } |
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554 | // static options |
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555 | if (wp_options != null){ |
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556 | net.sf.json.JSONObject json = getWPOptions(); |
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557 | option_val = json.getString(opt_key); |
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558 | } |
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559 | |
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560 | |
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561 | return option_val; |
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562 | |
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563 | } |
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564 | |
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565 | public String getRepositoryPath(){ |
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566 | String repository_path = null; |
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567 | |
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568 | |
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569 | if (repositories == null ) { |
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570 | try { |
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571 | setRepositories(GenericProxyAction.createRepositories()); |
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572 | } catch (IOException e) { |
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573 | // TODO Auto-generated catch block |
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574 | e.printStackTrace(); |
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575 | } catch (InterruptedException e) { |
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576 | // TODO Auto-generated catch block |
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577 | e.printStackTrace(); |
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578 | } catch (TransformerException e) { |
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579 | // TODO Auto-generated catch block |
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580 | e.printStackTrace(); |
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581 | } catch (NoStylesheetException e) { |
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582 | // TODO Auto-generated catch block |
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583 | e.printStackTrace(); |
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584 | } |
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585 | } |
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586 | // static repositories |
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587 | net.sf.json.JSONArray json = getRepositories(); |
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588 | for(int i=0;i<json.size();i++){ |
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589 | if (json.getJSONObject(i).getString("name").equals(getRepository())){ |
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590 | repository_path = json.getJSONObject(i).getString("uri"); |
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591 | } |
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592 | } |
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593 | //Admin.notifyUser("REPOSITORY_PATH:" + repository_path); |
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594 | |
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595 | //session repositories |
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596 | /* |
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597 | HttpSession session = getServletRequest().getSession(); |
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598 | json = (net.sf.json.JSONArray) session.getAttribute("repositories"); |
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599 | for(int i=0;i<json.size();i++){ |
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600 | if (json.getJSONObject(i).getInt("id") == getRepository()){ |
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601 | repository_path = json.getJSONObject(i).getString("uri"); |
---|
602 | } |
---|
603 | } |
---|
604 | Admin.notifyUser("REPOSITORY_PATH-SESSIONATTR:" + repository_path); |
---|
605 | */ |
---|
606 | return repository_path; |
---|
607 | |
---|
608 | } |
---|
609 | |
---|
610 | public String getRepositoryType(){ |
---|
611 | String typestr = ""; |
---|
612 | |
---|
613 | if (repositories == null ) { |
---|
614 | try { |
---|
615 | setRepositories(GenericProxyAction.createRepositories()); |
---|
616 | } catch (IOException e) { |
---|
617 | // TODO Auto-generated catch block |
---|
618 | e.printStackTrace(); |
---|
619 | } catch (InterruptedException e) { |
---|
620 | // TODO Auto-generated catch block |
---|
621 | e.printStackTrace(); |
---|
622 | } catch (TransformerException e) { |
---|
623 | // TODO Auto-generated catch block |
---|
624 | e.printStackTrace(); |
---|
625 | } catch (NoStylesheetException e) { |
---|
626 | // TODO Auto-generated catch block |
---|
627 | e.printStackTrace(); |
---|
628 | } |
---|
629 | } |
---|
630 | // static repositories |
---|
631 | net.sf.json.JSONArray json = getRepositories(); |
---|
632 | for(int i=0;i<json.size();i++){ |
---|
633 | if (json.getJSONObject(i).getString("name").equals(getRepository())){ |
---|
634 | typestr = json.getJSONObject(i).getString("type"); |
---|
635 | } |
---|
636 | } |
---|
637 | |
---|
638 | return (typestr); |
---|
639 | |
---|
640 | } |
---|
641 | public Boolean isSRURepository(){ |
---|
642 | //Boolean issru = false; |
---|
643 | String typestr = getRepositoryType(); |
---|
644 | |
---|
645 | return (typestr.equals("sru")); |
---|
646 | |
---|
647 | } |
---|
648 | public String addDurationKey(){ |
---|
649 | String req_key = getRequestKey(); |
---|
650 | |
---|
651 | Double duration_d; |
---|
652 | |
---|
653 | duration_d = (double)duration; |
---|
654 | duration_d = duration_d/1000.0; |
---|
655 | req_key += duration_d + "//-"; |
---|
656 | return req_key; |
---|
657 | } |
---|
658 | |
---|
659 | public HashMap<String,String> createTransformerParams(){ |
---|
660 | |
---|
661 | HashMap<String,String> hm = new HashMap<String,String>(); |
---|
662 | |
---|
663 | if (getFullFormat() != null){ |
---|
664 | hm.put("format", getFullFormat()); |
---|
665 | } |
---|
666 | if (getColumns() != null){ |
---|
667 | hm.put("cols", getColumns()); |
---|
668 | } else { |
---|
669 | hm.put("cols", ""); |
---|
670 | } |
---|
671 | if (getStartItem() != null){ |
---|
672 | hm.put("startItem", getStartItem()); |
---|
673 | } |
---|
674 | if (getMaximumItems() != null){ |
---|
675 | hm.put("maximumItems", getMaximumItems()); |
---|
676 | } |
---|
677 | if (getLang() != null){ |
---|
678 | hm.put("lang", getLang()); |
---|
679 | } |
---|
680 | if (getQ() != null){ |
---|
681 | hm.put("q", getQ()); |
---|
682 | } |
---|
683 | //if (getRepository() != null){ |
---|
684 | hm.put("repository_name", String.valueOf(getRepository())); |
---|
685 | //} |
---|
686 | |
---|
687 | return hm; |
---|
688 | |
---|
689 | } |
---|
690 | |
---|
691 | /** |
---|
692 | * This is the work-horse function. |
---|
693 | * It does two things: |
---|
694 | * a) check if the source data is already in cache (based on cache-key that is constructed from the request parameters) |
---|
695 | * b) if format-parameter provided, invokes the transformation. |
---|
696 | * at the end the data to be returned as result is contained in the resultStream |
---|
697 | * If format is xml, then the data from sourceStream is passed further as resultStream. |
---|
698 | * |
---|
699 | * @throws Exception This is handled by struts (is mapped to some result in struts.xml based on the Exception-Class) |
---|
700 | */ |
---|
701 | |
---|
702 | public void prepare() throws Exception { |
---|
703 | |
---|
704 | String req_key = getRequestKey(); |
---|
705 | Admin.notifyUser("request_key: " + req_key); |
---|
706 | Admin.notifyUser(getProxyKey() + ".targetURL: " + getTargetRequest() + " .format:" + getFullFormat()); |
---|
707 | |
---|
708 | // Caching |
---|
709 | String xcid; |
---|
710 | |
---|
711 | // Admin.notifyUser("GPA.prepareSourceStream"); |
---|
712 | |
---|
713 | if (getCache().equals(Cache.SKIP)) { |
---|
714 | |
---|
715 | sourceStream = getSourceStream(); |
---|
716 | |
---|
717 | } else { |
---|
718 | if (getCache().equals(Cache.USE)) { |
---|
719 | sourceStream = Cache.getCache().getFromCache(req_key); |
---|
720 | } |
---|
721 | if (sourceStream == null) { // either not in cache or cache_flag=refresh |
---|
722 | //sourceStream = getTargetRequest().openStream(); |
---|
723 | long startMillis = System.currentTimeMillis(); |
---|
724 | sourceStream = getSourceStream(); |
---|
725 | duration = System.currentTimeMillis() - startMillis; |
---|
726 | req_key = addDurationKey(); |
---|
727 | |
---|
728 | long now = System.currentTimeMillis(); |
---|
729 | xcid = Cache.getCache().putInCache(req_key,sourceStream); |
---|
730 | //Admin.notifyUser("putting in cache: " + req_key); |
---|
731 | sourceStream = Cache.getCache().getFromCache(req_key); |
---|
732 | } /* else { |
---|
733 | Admin.notifyUser("reading from cache: " + req_key); |
---|
734 | } */ |
---|
735 | } |
---|
736 | |
---|
737 | if (format.equals("xml")) { |
---|
738 | resultStream = sourceStream; |
---|
739 | }else { |
---|
740 | MDTransformer transformer = new MDTransformer(); |
---|
741 | // set URL as srcFile (for MDTransformer to pass to xsl-scripts) |
---|
742 | // TODO: WHY?? |
---|
743 | transformer.setSrcFile(getTargetRequest()); |
---|
744 | transformer.setParams(createTransformerParams()); |
---|
745 | // here the transformation is invoked |
---|
746 | resultStream = transformer.transformXML(sourceStream); |
---|
747 | } |
---|
748 | |
---|
749 | Admin.notifyUser(getProxyKey() + " success:" + (resultStream!=null)); |
---|
750 | } |
---|
751 | |
---|
752 | /** |
---|
753 | * default Action method that gets called by Struts. Everything interesting happens in prepare() |
---|
754 | */ |
---|
755 | public String execute() throws Exception { |
---|
756 | // HttpServletRequest request = ServletActionContext.getRequest(); |
---|
757 | |
---|
758 | |
---|
759 | //Admin.notifyUser("session-attrs:"); |
---|
760 | //Admin.notifyUser(getServletRequest().getRemoteUser() ); |
---|
761 | //Admin.notifyUser(String.valueOf(getSession())); |
---|
762 | |
---|
763 | long now = System.currentTimeMillis(); |
---|
764 | |
---|
765 | prepare(); |
---|
766 | long duration = (System.currentTimeMillis() - now); |
---|
767 | //duration |
---|
768 | |
---|
769 | if (resultStream == null) { |
---|
770 | return ERROR; |
---|
771 | } else { |
---|
772 | return SUCCESS; |
---|
773 | } |
---|
774 | } |
---|
775 | |
---|
776 | |
---|
777 | } |
---|