extract lastmodified from openoffice doc

set lastmod date in office document parsers

source/net/yacy/document/parser/docParser.java

@@ -29,7 +29,6 @@ package net.yacy.document.parser;
 
 import java.io.InputStream;
 import java.util.ArrayList;
-import java.util.Date;
 import java.util.List;
 
 import net.yacy.cora.document.id.AnchorURL;
@@ -127,7 +126,8 @@ public class docParser extends AbstractParser implements Parser {
             null,
             null,
             false,
-                  new Date())};
+            extractor.getSummaryInformation().getLastSaveDateTime() // maybe null
+            )};
 
         return docs;
     }

source/net/yacy/document/parser/odtParser.java

@@ -120,6 +120,7 @@ public class odtParser extends AbstractParser implements Parser {
             String docLongTitle   = null;
             String docAuthor      = null;
             String docLanguage    = null;
+            Date docModified    = null;
 
             // opening the file as zip file
             final ZipFile zipFile = new ZipFile(dest);
@@ -160,6 +161,7 @@ public class odtParser extends AbstractParser implements Parser {
                     docLongTitle   = metaData.getSubject();
                     docAuthor      = metaData.getCreator();
                     docLanguage    = metaData.getLanguage();
+                    docModified    = metaData.getLastModified(); // maybe null
                 }
             }
 
@@ -201,7 +203,7 @@ public class odtParser extends AbstractParser implements Parser {
                     null,
                     null,
                     false,
-                    new Date()
+                    docModified
                     )};
             return docs;
         } catch (final Exception e) {

source/net/yacy/document/parser/ooxmlParser.java

@@ -102,6 +102,7 @@ public class ooxmlParser extends AbstractParser implements Parser {
             String docLongTitle   = null;
             String docAuthor      = null;
             String docLanguage    = null;
+            Date docModified      = null;
 
             // opening the file as zip file
             final ZipFile zipFile= new ZipFile(dest);
@@ -145,6 +146,7 @@ public class ooxmlParser extends AbstractParser implements Parser {
                     docLongTitle   = metaData.getSubject();
                     docAuthor      = metaData.getCreator();
                     docLanguage    = metaData.getLanguage();
+                    docModified    = metaData.getLastModified();
                 }
             }
 
@@ -185,7 +187,7 @@ public class ooxmlParser extends AbstractParser implements Parser {
                     null,
                     null,
                     false,
-                    new Date())};
+                    docModified)};
             return docs;
         } catch (final Exception e) {
             if (e instanceof InterruptedException) throw (InterruptedException) e;

source/net/yacy/document/parser/pptParser.java

@@ -30,7 +30,6 @@ package net.yacy.document.parser;
 import java.io.BufferedInputStream;
 import java.io.InputStream;
 import java.util.ArrayList;
-import java.util.Date;
 import java.util.List;
 
 import net.yacy.cora.document.id.AnchorURL;
@@ -120,7 +119,8 @@ public class pptParser extends AbstractParser implements Parser {
                 null,
                 null,
                 false,
-                    new Date())};
+                pptExtractor.getSummaryInformation().getLastSaveDateTime() // may be null
+                )};
             return docs;
         } catch (final Exception e) {
             if (e instanceof InterruptedException) throw (InterruptedException) e;

source/net/yacy/document/parser/xml/ODMetaHandler.java

@@ -26,6 +26,9 @@
 
 package net.yacy.document.parser.xml;
 
+import java.text.ParseException;
+import java.util.Date;
+import net.yacy.cora.date.ISO8601Formatter;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.DefaultHandler;
@@ -39,6 +42,7 @@ public class ODMetaHandler extends DefaultHandler {
 	private String docSubject = null;
 	private String docTitle = null;
 	private String docDescription = null;
+        private String docLastmodified = null;
 	
 	public ODMetaHandler() {
 	}
@@ -67,6 +71,8 @@ public class ODMetaHandler extends DefaultHandler {
 		this.docTitle  = buffer.toString();
 	    } else if ("dc:description".equals(tag)) {
 		this.docDescription  = buffer.toString();
+	    } else if ("dcterms:modified".equals(tag) || "dc:date".equals(tag)) { // Microsoft uses <dcterms:modified>, OpenOffice <dc:date>
+                this.docLastmodified = buffer.toString();
             }
 	}
 
@@ -89,5 +95,24 @@ public class ODMetaHandler extends DefaultHandler {
 	public String getDescription() {
 	    return docDescription;
 	}
+
+    /**
+     * get the last modification date of the document
+     *
+     * @return date or null
+     */
+    public Date getLastModified() {
+        Date d;
+        if (docLastmodified != null && !docLastmodified.isEmpty()) {
+            try {
+                d = ISO8601Formatter.FORMATTER.parse(this.docLastmodified, 0).getTime();
+            } catch (ParseException ex) {
+                d = null;
+            }
+        } else {
+            d = null;
+        }
+        return d;
+    }
 }