/*
* @(#)$Id: XQEngineProxyService.java 3619 2008-03-26 07:23:03Z yui $
*
* Copyright 2006-2008 Makoto YUI
*
* 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.
*
* Contributors:
* Makoto YUI - initial implementation
*/
package xbird.server.services;
import java.rmi.RemoteException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import xbird.engine.InternalException;
import xbird.engine.XQEngineServer;
import xbird.server.ServiceException;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI (yuin405+xbird@gmail.com)
*/
public final class XQEngineProxyService extends ServiceBase {
private static final Log LOG = LogFactory.getLog(XQEngineProxyService.class);
public static final String SRV_NAME = "XQEngineProxy";
private final XQEngineServer engine;
public XQEngineProxyService() {
super(SRV_NAME);
this.engine = new XQEngineServer();
}
public void start() throws ServiceException {
if(_status != Status.prepared) {
throw new IllegalStateException("Illegal service state: " + _status);
}
try {
engine.start();
} catch (InternalException e) {
throw new ServiceException("failed to start an engine", e.getCause());
}
this._status = Status.started;
LOG.info("Service started: " + _srvName);
}
public void stop() throws ServiceException {
if(_status == Status.stopped) {
return;
}
if(_status != Status.started) {
throw new IllegalStateException("Illegal service state: " + _status);
}
try {
engine.shutdown(false);
} catch (RemoteException e) {
throw new ServiceException("failed to shutdown the engine", e);
}
this._status = Status.stopped;
LOG.info("Service stopped: " + _srvName);
}
}