/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* 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 cascading.platform.local;
import java.io.IOException;
import java.io.InputStream;
import java.io.LineNumberReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Properties;
import cascading.flow.FlowProcess;
import cascading.scheme.SinkCall;
import cascading.scheme.SourceCall;
import cascading.tap.TapException;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
/**
*
*/
public class LocalFailScheme extends cascading.scheme.local.TextLine
{
boolean sourceFired = false;
boolean sinkFired = false;
public LocalFailScheme()
{
}
public LocalFailScheme( Fields sourceFields )
{
super( sourceFields );
}
@Override
public boolean source( FlowProcess<? extends Properties> flowProcess, SourceCall<LineNumberReader, InputStream> sourceCall ) throws IOException
{
if( !sourceFired )
{
sourceFired = true;
throw new TapException( "fail", new Tuple( "bad data" ) );
}
return super.source( flowProcess, sourceCall );
}
@Override
public void sink( FlowProcess<? extends Properties> flowProcess, SinkCall<PrintWriter, OutputStream> sinkCall ) throws IOException
{
if( !sinkFired )
{
sinkFired = true;
throw new TapException( "fail", new Tuple( "bad data" ) );
}
super.sink( flowProcess, sinkCall );
}
}