/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.ext.metadata;
import org.apache.commons.chain.Context;
import org.exoplatform.commons.utils.PropertyManager;
import org.exoplatform.commons.utils.QName;
import org.exoplatform.container.ExoContainer;
import org.exoplatform.services.command.action.Action;
import org.exoplatform.services.document.DocumentReadException;
import org.exoplatform.services.document.DocumentReaderService;
import org.exoplatform.services.document.HandlerNotFoundException;
import org.exoplatform.services.ext.action.InvocationContext;
import org.exoplatform.services.jcr.core.nodetype.PropertyDefinitionDatas;
import org.exoplatform.services.jcr.datamodel.InternalQName;
import org.exoplatform.services.jcr.datamodel.NodeData;
import org.exoplatform.services.jcr.datamodel.PropertyData;
import org.exoplatform.services.jcr.impl.Constants;
import org.exoplatform.services.jcr.impl.core.JCRName;
import org.exoplatform.services.jcr.impl.core.NodeImpl;
import org.exoplatform.services.jcr.impl.core.PropertyImpl;
import org.exoplatform.services.jcr.observation.ExtendedEvent;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import java.io.IOException;
import java.io.InputStream;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.Properties;
import javax.jcr.PathNotFoundException;
import javax.jcr.RepositoryException;
import javax.jcr.Value;
import javax.jcr.ValueFactory;
import javax.jcr.ValueFormatException;
/**
* Created by The eXo Platform SAS .
*
* @author Gennady Azarenkov
* @version $Id: AddMetadataAction.java 34445 2009-07-24 07:51:18Z dkatayev $
*/
public class AddMetadataAction implements Action
{
private static final Log LOG = ExoLogger.getLogger("exo.jcr.component.ext.AddMetadataAction");
public boolean execute(Context ctx) throws Exception
{
PropertyImpl property = (PropertyImpl)ctx.get("currentItem");
NodeImpl parent = property.getParent();
if (!parent.isNodeType("nt:resource"))
{
throw new Exception("incoming node is not nt:resource type");
}
InputStream data = null;
String mimeType;
try
{
if (property.getInternalName().equals(Constants.JCR_DATA))
{
data = ((PropertyData)property.getData()).getValues().get(0).getAsStream();
try
{
mimeType = parent.getProperty("jcr:mimeType").getString();
}
catch (PathNotFoundException e)
{
return false;
}
}
else if (property.getInternalName().equals(Constants.JCR_MIMETYPE))
{
int evt = (Integer)ctx.get(InvocationContext.EVENT);
if (evt != ExtendedEvent.PROPERTY_ADDED)
{
// In case the mime type is modified we assume that the property jcr:data is modified too so to
// prevent issue like JCR-1873 we do the data extraction only on jcr:data change
return false;
}
mimeType = property.getString();
try
{
PropertyImpl propertyImpl = (PropertyImpl)parent.getProperty("jcr:data");
data = ((PropertyData)propertyImpl.getData()).getValues().get(0).getAsStream();
}
catch (PathNotFoundException e)
{
return false;
}
}
else
{
return false;
}
if (data.available() == 0)
{
return false;
}
if (!parent.isNodeType("dc:elementSet"))
{
parent.addMixin("dc:elementSet");
}
DocumentReaderService readerService =
(DocumentReaderService)((ExoContainer)ctx.get("exocontainer"))
.getComponentInstanceOfType(DocumentReaderService.class);
if (readerService == null)
{
throw new IllegalArgumentException("No DocumentReaderService configured for current container");
}
Properties props = new Properties();
try
{
props = readerService.getDocumentReader(mimeType).getProperties(data);
}
catch (HandlerNotFoundException e)
{
LOG.debug("Binary value reader error, content by path " + property.getPath() + ", property id "
+ property.getData().getIdentifier() + " : " + e.getMessage());
}
catch (DocumentReadException e)
{
printWarning(property, e);
}
catch (IOException e)
{
printWarning(property, e);
}
Iterator entries = props.entrySet().iterator();
while (entries.hasNext())
{
Entry entry = (Entry)entries.next();
QName qname = (QName)entry.getKey();
JCRName jcrName =
property.getSession().getLocationFactory().createJCRName(
new InternalQName(qname.getNamespace(), qname.getName()));
PropertyDefinitionDatas pds =
parent.getSession().getWorkspace().getNodeTypesHolder().getPropertyDefinitions(
jcrName.getInternalName(), ((NodeData)parent.getData()).getPrimaryTypeName(),
((NodeData)parent.getData()).getMixinTypeNames());
if (pds.getDefinition(true) != null)
{
Value[] values = {createValue(entry.getValue(), property.getSession().getValueFactory())};
parent.setProperty(jcrName.getAsString(), values);
}
else
{
parent.setProperty(jcrName.getAsString(), createValue(entry.getValue(), property.getSession()
.getValueFactory()));
}
}
return false;
}
finally
{
if (data != null)
data.close();
}
}
/**
* Print warning message on the console
*
* @param property property that has not been read
* @param exception the reason for which wasn't read property
* @throws RepositoryException
*/
private void printWarning(PropertyImpl property, Exception exception) throws RepositoryException
{
if (PropertyManager.isDevelopping())
{
LOG.warn("Binary value reader error, content by path " + property.getPath() + ", property id "
+ property.getData().getIdentifier() + " : " + exception.getMessage(), exception);
}
else
{
LOG.warn("Binary value reader error, content by path " + property.getPath() + ", property id "
+ property.getData().getIdentifier() + " : " + exception.getMessage());
}
}
private Value createValue(Object obj, ValueFactory factory) throws ValueFormatException
{
if (obj instanceof String)
return factory.createValue((String)obj);
else if (obj instanceof Calendar)
return factory.createValue((Calendar)obj);
else if (obj instanceof Date)
{
Calendar cal = Calendar.getInstance();
cal.setTime((Date)obj);
return factory.createValue(cal);
}
else
{
throw new ValueFormatException("Unsupported value type " + obj.getClass());
}
}
}