/*
* $Header: /home/cvs/jakarta-slide/src/stores/org/apache/slide/store/mem/TransientContentStore.java,v 1.2 2004/07/28 09:34:05 ib Exp $
* $Revision: 1.2 $
* $Date: 2004/07/28 09:34:05 $
*
* ====================================================================
*
* Copyright 1999-2002 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.apache.slide.store.mem;
import org.apache.slide.common.ServiceAccessException;
import org.apache.slide.common.Uri;
import org.apache.slide.content.NodeRevisionContent;
import org.apache.slide.content.NodeRevisionDescriptor;
import org.apache.slide.content.RevisionAlreadyExistException;
import org.apache.slide.content.RevisionNotFoundException;
import org.apache.slide.store.ContentStore;
/**
*/
public class TransientContentStore extends AbstractTransientStore implements
ContentStore
{
// FIXME: should we clone the content byte array?
public NodeRevisionContent retrieveRevisionContent(Uri uri,
NodeRevisionDescriptor revisionDescriptor)
throws ServiceAccessException, RevisionNotFoundException
{
VersionedUriKey key = new VersionedUriKey(uri,
revisionDescriptor.getRevisionNumber());
debug("retrieveRevisionContent {0}", key);
byte[] content = (byte[])get(key);
if (content != null) {
NodeRevisionContent revisionContent = new NodeRevisionContent();
revisionContent.setContent(content);
return revisionContent;
} else {
throw new RevisionNotFoundException(uri.toString(),
revisionDescriptor.getRevisionNumber());
}
}
public void createRevisionContent(Uri uri,
NodeRevisionDescriptor revisionDescriptor,
NodeRevisionContent revisionContent) throws ServiceAccessException,
RevisionAlreadyExistException
{
VersionedUriKey key = new VersionedUriKey(uri,
revisionDescriptor.getRevisionNumber());
debug("createRevisionContent {0}", key);
byte[] content = (byte[])get(key);
if (content == null) {
put(key, revisionContent.getContentBytes());
} else {
throw new RevisionAlreadyExistException(uri.toString(),
revisionDescriptor.getRevisionNumber());
}
}
public void storeRevisionContent(Uri uri,
NodeRevisionDescriptor revisionDescriptor,
NodeRevisionContent revisionContent) throws ServiceAccessException,
RevisionNotFoundException
{
VersionedUriKey key = new VersionedUriKey(uri,
revisionDescriptor.getRevisionNumber());
debug("storeRevisionContent {0}", key);
byte[] content = (byte[])get(key);
if (content != null) {
put(key, revisionContent.getContentBytes());
} else {
throw new RevisionNotFoundException(uri.toString(),
revisionDescriptor.getRevisionNumber());
}
}
public void removeRevisionContent(Uri uri,
NodeRevisionDescriptor revisionDescriptor)
throws ServiceAccessException
{
VersionedUriKey key = new VersionedUriKey(uri,
revisionDescriptor.getRevisionNumber());
debug("storeRevisionContent {0}", key);
remove(key);
}
}