/*
* Copyright 2000-2004 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.jetspeed.portal.expire;
//java stuff
import java.io.IOException;
// Jetspeed classes
import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
import org.apache.jetspeed.services.logging.JetspeedLogger;
/**
Handles expiration mechanisms that expire when the file changes.
@author <a href="mailto:burton@apache.org">Kevin A. Burton</a>
@version $Id: FileWatchExpire.java,v 1.10 2004/02/23 03:24:40 jford Exp $
*/
public class FileWatchExpire extends BaseExpire
{
/**
* Static initialization of the logger for this class
*/
private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(FileWatchExpire.class.getName());
FileWatcher fw = null;
/**
@see Expire#isExpired
@author <a href="mailto:burton@apache.org">Kevin A. Burton</a>
@version $Id: FileWatchExpire.java,v 1.10 2004/02/23 03:24:40 jford Exp $
*/
public boolean isExpired() {
if ( this.fw != null ) {
return this.fw.hasChanged();
} else {
return false;
}
}
/**
Set the url on which this depends. It is required that you call this
method before you use it.
*/
public void setURL( String url ) {
try {
this.fw = new FileWatcher( url, this.getPortlet().getName() );
} catch ( IOException e ) {
logger.error("Exception", e);
}
}
}