001 /* 002 * Copyright (c) 2007-2015 Concurrent, Inc. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021 package cascading.flow.local.planner; 022 023 import java.util.Map; 024 025 import cascading.flow.FlowStep; 026 import cascading.flow.local.LocalFlowStep; 027 import cascading.flow.planner.ElementGraph; 028 import cascading.flow.planner.FlowStepGraph; 029 import cascading.tap.Tap; 030 import org.jgrapht.Graphs; 031 032 /** 033 * 034 */ 035 public class LocalStepGraph extends FlowStepGraph 036 { 037 public LocalStepGraph( String flowName, ElementGraph elementGraph ) 038 { 039 super( flowName, elementGraph ); 040 } 041 042 @Override 043 protected FlowStep createFlowStep( String stepName, int stepNum ) 044 { 045 return new LocalFlowStep( stepName, stepNum ); 046 } 047 048 protected void makeStepGraph( String flowName, ElementGraph elementGraph ) 049 { 050 LocalFlowStep step = (LocalFlowStep) createFlowStep( "local", 1 ); 051 052 addVertex( step ); 053 054 for( Map.Entry<String, Tap> entry : elementGraph.getSourceMap().entrySet() ) 055 step.addSource( entry.getKey(), entry.getValue() ); 056 057 for( Map.Entry<String, Tap> entry : elementGraph.getSinkMap().entrySet() ) 058 step.addSink( entry.getKey(), entry.getValue() ); 059 060 step.getTrapMap().putAll( elementGraph.getTrapMap() ); 061 062 Graphs.addGraph( step.getGraph(), elementGraph ); 063 064 // remove the extents 065 step.getGraph().removeVertex( ElementGraph.head ); 066 step.getGraph().removeVertex( ElementGraph.tail ); 067 068 step.getGroups().addAll( elementGraph.findAllGroups() ); 069 } 070 }