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/*
* 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.tuscany.das.rdb.impl;
import java.sql.Connection;
import org.apache.log4j.Logger;
import org.apache.tuscany.das.rdb.config.wrapper.MappingWrapper;
import org.apache.tuscany.das.rdb.util.LoggerFactory;
import commonj.sdo.DataObject;
/**
*
*/
public class ApplyChangesCommandImpl extends BaseCommandImpl {
private final Logger logger = LoggerFactory.INSTANCE.getLogger(ApplyChangesCommandImpl.class);
private ChangeSummarizer summarizer = new ChangeSummarizer();
public ApplyChangesCommandImpl(MappingWrapper config, Connection connection) {
this.configWrapper = config;
if (connection != null) {
setConnection(connection, config.getConfig());
}
}
public void setConnection(ConnectionImpl connection) {
summarizer.setConnection(connection);
}
public void execute(DataObject root) {
if (this.logger.isDebugEnabled()) {
this.logger.debug("Executing ApplyChangesCmd");
}
if (summarizer.getConnection() == null) {
throw new RuntimeException("A connection must be provided");
}
if (!root.equals(root.getDataGraph().getRootObject())) {
throw new RuntimeException("'root' argument must be the root of the datagraph");
}
summarizer.setMapping(configWrapper);
Changes changes = summarizer.loadChanges(root);
boolean success = false;
try {
changes.execute();
success = true;
} finally {
if (success) {
summarizer.getConnection().cleanUp();
} else {
summarizer.getConnection().errorCleanUp();
}
}
}
}
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