/* $Id$ */
/**
* 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.manifoldcf.crawler.connectors.webcrawler;
import org.apache.manifoldcf.core.interfaces.*;
import org.apache.manifoldcf.connectorcommon.interfaces.*;
import org.apache.manifoldcf.agents.interfaces.*;
import org.apache.manifoldcf.crawler.interfaces.*;
/** This class furnishes an abort signal whenever the job activity says it should.
* It should never be invoked from a background thread, only from a ManifoldCF thread.
*/
public class AbortChecker implements IBreakCheck
{
protected final IAbortActivity activities;
protected ServiceInterruption serviceInterruption = null;
protected ManifoldCFException mcfException = null;
public AbortChecker(IAbortActivity activities)
{
this.activities = activities;
}
@Override
public long abortCheck()
throws BreakException, InterruptedException
{
try
{
activities.checkJobStillActive();
return 1000L;
}
catch (ServiceInterruption e)
{
serviceInterruption = e;
throw new BreakException("Break requested: "+e.getMessage(),e);
}
catch (ManifoldCFException e)
{
if (e.getErrorCode() == ManifoldCFException.INTERRUPTED)
throw new InterruptedException("Interrupted: "+e.getMessage());
mcfException = e;
throw new BreakException("Error during break check: "+e.getMessage(),e);
}
}
public void rethrowExceptions()
throws ManifoldCFException, ServiceInterruption
{
if (serviceInterruption != null)
throw serviceInterruption;
if (mcfException != null)
throw mcfException;
}
}