/*
* 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.flow.iso.graph;
import java.util.Map;
import cascading.flow.iso.NonFunction;
import cascading.flow.iso.NonTap;
import cascading.flow.planner.graph.FlowElementGraph;
import cascading.operation.Function;
import cascading.operation.Identity;
import cascading.pipe.CoGroup;
import cascading.pipe.Each;
import cascading.pipe.GroupBy;
import cascading.pipe.Pipe;
import cascading.tap.Tap;
import cascading.tuple.Fields;
import static cascading.util.Util.createHashMap;
/**
*
*/
public class StandardElementGraph extends FlowElementGraph
{
public StandardElementGraph()
{
this( false );
}
public StandardElementGraph( boolean testBetween )
{
Function function = new NonFunction( new Fields( "num", "char" ) );
Pipe pipeLower = new Each( "lower", new Fields( "line" ), function );
Pipe pipeUpper1 = new Each( "upper1", new Fields( "line" ), function );
Pipe pipeUpper2 = new Each( "upper2", new Fields( "line" ), function );
Pipe splice1 = new CoGroup( pipeLower, new Fields( "num" ), pipeUpper1, new Fields( "num" ), new Fields( "num1", "char1", "num2", "char2" ) );
splice1 = new Each( splice1, new Identity() );
splice1 = new Each( splice1, new Identity() );
splice1 = new Each( new Pipe( "last", splice1 ), new Identity() );
splice1 = new GroupBy( splice1, new Fields( 0 ) );
Pipe splice2 = new CoGroup( splice1, new Fields( "num1" ), pipeUpper2, new Fields( "num" ), new Fields( "num1", "char1", "num2", "char2", "num3", "char3" ) );
if( testBetween )
splice2 = new Each( new Pipe( "before", splice2 ), new Identity() );
splice2 = new Each( new Pipe( "remove", splice2 ), new Identity() );
if( testBetween )
splice2 = new Each( new Pipe( "after", splice2 ), new Identity() );
splice2 = new GroupBy( splice2, new Fields( 0 ) );
Pipe tail = new CoGroup( splice2, new Fields( "num1" ), splice1, new Fields( "num1" ), new Fields( "num1", "char1", "num2", "char2", "num3", "char3", "num4", "char4", "num5", "char5" ) );
tail = new Each( tail, new Identity() );
Pipe lhsTail = new Pipe( "lhsTail", tail );
lhsTail = new Each( lhsTail, new Identity() );
Pipe rhsTail = new Pipe( "rhsTail", tail );
rhsTail = new Each( rhsTail, new Identity() );
Map<String, Tap> sources = createHashMap();
sources.put( "lower", new NonTap( new Fields( "offset", "line" ) ) );
sources.put( "upper1", new NonTap( new Fields( "offset", "line" ) ) );
sources.put( "upper2", new NonTap( new Fields( "offset", "line" ) ) );
Map<String, Tap> sinks = createHashMap();
sinks.put( lhsTail.getName(), new NonTap( new Fields( "offset", "line" ) ) );
sinks.put( rhsTail.getName(), new NonTap( new Fields( "offset", "line" ) ) );
initialize( sources, sinks, lhsTail, rhsTail );
}
}