Changeset 6222 for ComponentRegistry

Timestamp:

05/19/15 08:02:58 (9 years ago)

Author:

Twan Goosen

Message:

now applying stylesheet and updating DB

Location:

ComponentRegistry/trunk/ComponentSpecFixer/src/main

Files:

• java/nl/mpi/componentspecfixer/ComponentSpecFixer.java (modified) (5 diffs)
• resources/xslt (added)
• resources/xslt/collapse-component-spec.xsl (added)

ComponentRegistry/trunk/ComponentSpecFixer/src/main/java/nl/mpi/componentspecfixer/ComponentSpecFixer.java

@@ -8 +8 @@
 import clarin.cmdi.componentregistry.model.BaseDescription;
 import clarin.cmdi.componentregistry.persistence.ComponentDao;
+import java.io.InputStream;
+import java.io.StringReader;
+import java.io.StringWriter;
 import java.util.List;
+import javax.xml.transform.Result;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -14 +25 @@
 import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.transaction.TransactionStatus;
-import org.springframework.transaction.support.TransactionCallback;
+import org.springframework.transaction.support.TransactionCallbackWithoutResult;
 import org.springframework.transaction.support.TransactionTemplate;
 
@@ -23 +34 @@
 public class ComponentSpecFixer {
 
-    private final static Logger logger = LoggerFactory.getLogger(ComponentSpecFixer.class);
+    private static final Logger logger = LoggerFactory.getLogger(ComponentSpecFixer.class);
+    private static final String XSLT_RESOURCE = "/xslt/collapse-component-spec.xsl";
+    private static final boolean DRY_RUN = false;
 
     private ClassPathXmlApplicationContext applicationContext;
     private ComponentDao componentDao;
     private TransactionTemplate transactionTemplate;
+    private Transformer transformer;
 
-    private void init() {
+    private void init() throws TransformerConfigurationException {
         applicationContext = new ClassPathXmlApplicationContext("/spring-config/applicationContext.xml", "/spring-config/container-environment.xml");
         componentDao = applicationContext.getBean(ComponentDao.class);
         transactionTemplate = new TransactionTemplate(applicationContext.getBean(PlatformTransactionManager.class));
+
+        // create transformer
+        final TransformerFactory factory = TransformerFactory.newInstance();
+        final InputStream xsltStream = getClass().getResourceAsStream(XSLT_RESOURCE);
+        transformer = factory.newTransformer(new StreamSource(xsltStream));
     }
 
@@ -46 +65 @@
             final String id = descr.getId();
 
-            transactionTemplate.execute(new TransactionCallback() {
+            transactionTemplate.execute(new TransactionCallbackWithoutResult() {
 
                 @Override
-                public Object doInTransaction(TransactionStatus ts) {
-                    logger.info("Updating {}", id);
+                protected void doInTransactionWithoutResult(TransactionStatus ts) {
+                    logger.debug("Updating {}", id);
 
                     final String content = componentDao.getContent(false, id);
-                    //TODO: update content
-                    final String newContent = content;
-                    componentDao.updateDescription(descr.getDbId(), descr, newContent);
+                    try {
+                        final String newContent = fixXml(content);
+                        if (content.length() / newContent.length() > 1) {
+                            logger.info("Reduced {} from {} to {} characters", id, content.length(), newContent.length());
 
-                    return null;
+                            if (!DRY_RUN) {
+                                componentDao.updateDescription(descr.getDbId(), descr, newContent);
+                            }
+                        } else {
+                            logger.info("No significant reduction for {}", id);
+                        }
+
+                    } catch (TransformerException ex) {
+                        throw new RuntimeException("Failed to transform " + id, ex);
+                    }
                 }
             });
@@ -64 +93 @@
     }
 
-    public static void main(String[] args) {
+    private String fixXml(String content) throws TransformerException {
+        final StringReader sourceReader = new StringReader(content);
+        final Source source = new StreamSource(sourceReader);
+        final StringWriter resultWriter = new StringWriter();
+        final Result result = new StreamResult(resultWriter);
+        transformer.transform(source, result);
+        return resultWriter.toString();
+    }
+
+    public static void main(String[] args) throws TransformerConfigurationException {
         final ComponentSpecFixer componentSpecFixer = new ComponentSpecFixer();