Derek Hulley 31d9ef768b Inverted configuration of Metadata Extracters
- Adding an extracter no longer requires modification to the MetadataExtracterRegistry
Fixed lack of stream closures

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2465 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2006-02-22 11:11:53 +00:00

108 lines
4.0 KiB
Java

/*
* Copyright (C) 2005 Jesper Steen Møller
*
* Licensed under the Mozilla Public License version 1.1
* with a permitted attribution clause. You may obtain a
* copy of the License at
*
* http://www.alfresco.org/legal/license.txt
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the
* License.
*/
package org.alfresco.repo.content.metadata;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.content.MimetypeMap;
import org.alfresco.service.cmr.repository.ContentIOException;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.namespace.QName;
import org.apache.poi.hpsf.DocumentSummaryInformation;
import org.apache.poi.hpsf.PropertySet;
import org.apache.poi.hpsf.PropertySetFactory;
import org.apache.poi.hpsf.SummaryInformation;
import org.apache.poi.poifs.eventfilesystem.POIFSReader;
import org.apache.poi.poifs.eventfilesystem.POIFSReaderEvent;
import org.apache.poi.poifs.eventfilesystem.POIFSReaderListener;
/**
*
* @author Jesper Steen Møller
*/
public class OfficeMetadataExtracter extends AbstractMetadataExtracter
{
private static String[] mimeTypes = new String[] { MimetypeMap.MIMETYPE_WORD, MimetypeMap.MIMETYPE_EXCEL,
MimetypeMap.MIMETYPE_PPT };
public OfficeMetadataExtracter()
{
super(new HashSet<String>(Arrays.asList(mimeTypes)), 1.0, 1000);
}
public void extractInternal(ContentReader reader, final Map<QName, Serializable> destination) throws Throwable
{
POIFSReaderListener readerListener = new POIFSReaderListener()
{
public void processPOIFSReaderEvent(final POIFSReaderEvent event)
{
try
{
PropertySet ps = PropertySetFactory.create(event.getStream());
if (ps instanceof SummaryInformation)
{
SummaryInformation si = (SummaryInformation) ps;
// Titled aspect
trimPut(ContentModel.PROP_TITLE, si.getTitle(), destination);
trimPut(ContentModel.PROP_DESCRIPTION, si.getSubject(), destination);
// Auditable aspect
trimPut(ContentModel.PROP_CREATED, si.getCreateDateTime(), destination);
trimPut(ContentModel.PROP_MODIFIED, si.getLastSaveDateTime(), destination);
trimPut(ContentModel.PROP_AUTHOR, si.getAuthor(), destination);
}
else if (ps instanceof DocumentSummaryInformation)
{
// DocumentSummaryInformation dsi = (DocumentSummaryInformation) ps;
// These are not really interesting to any aspect:
// trimPut(ContentModel.PROP_xxx, dsi.getCompany(),
// destination);
// trimPut(ContentModel.PROP_yyy, dsi.getManager(),
// destination);
}
}
catch (Exception ex)
{
throw new ContentIOException("Property set stream: " + event.getPath() + event.getName(), ex);
}
}
};
InputStream is = null;
try
{
is = reader.getContentInputStream();
POIFSReader poiFSReader = new POIFSReader();
poiFSReader.registerListener(readerListener, SummaryInformation.DEFAULT_STREAM_NAME);
poiFSReader.read(is);
}
finally
{
if (is != null)
{
try { is.close(); } catch (IOException e) {}
}
}
}
}