/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.lenya.cms.repository;
import java.util.Vector;
import org.apache.avalon.framework.container.ContainerUtil;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.framework.logger.Logger;
import org.apache.avalon.framework.service.ServiceManager;
import org.apache.lenya.cms.rc.CheckInEntry;
import org.apache.lenya.cms.rc.RCML;
/**
* Revision history implementation.
*/
public class SourceNodeHistory extends AbstractLogEnabled implements History {
private SourceNode node;
private ServiceManager manager;
/**
* Ctor.
* @param node The node which the history belongs to.
* @param manager The service manager.
* @param logger The logger.
*/
public SourceNodeHistory(SourceNode node, ServiceManager manager, Logger logger) {
this.node = node;
this.manager = manager;
ContainerUtil.enableLogging(this, logger);
}
public Revision getLatestRevision() {
try {
int[] numbers = getRevisionNumbers();
if (numbers.length > 0) {
return getRevision(numbers[0]);
}
else {
throw new RepositoryException("There is no revision for node [" + this.node + "] yet.");
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public Revision getRevision(int number) throws RepositoryException {
return new SourceNodeRevision(this.node, number, this.manager, getLogger());
}
public int[] getRevisionNumbers() {
RCML rcml = this.node.getRcml();
try {
Vector entries = rcml.getBackupEntries();
int[] numbers = new int[entries.size()];
for (int i = 0; i < entries.size(); i++) {
CheckInEntry entry = (CheckInEntry) entries.get(i);
numbers[i] = entry.getVersion();
}
return numbers;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}