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 021package cascading.flow; 022 023import java.util.Map; 024import java.util.Set; 025 026import cascading.flow.planner.FlowStepJob; 027import cascading.flow.planner.graph.FlowElementGraph; 028import cascading.flow.planner.process.FlowStepGraph; 029import cascading.tap.Tap; 030 031/** Flows is a utility helper class. */ 032public final class Flows 033 { 034 private Flows() 035 { 036 } 037 038 public static Map<String, FlowStepJob> getJobsMap( Flow flow ) 039 { 040 return ( (BaseFlow) flow ).getJobsMap(); 041 } 042 043 public static FlowElementGraph getFlowElementGraphFrom( Flow flow ) 044 { 045 return ( (BaseFlow) flow ).getFlowElementGraph(); 046 } 047 048 public static FlowStepGraph getStepGraphFrom( Flow flow ) 049 { 050 return ( (BaseFlow) flow ).getFlowStepGraph(); 051 } 052 053 public static String getNameOrID( Flow flow ) 054 { 055 if( flow == null ) 056 return null; 057 058 if( flow.getName() != null ) 059 return flow.getName(); 060 061 return flow.getID().substring( 0, 6 ); 062 } 063 064 public static Tap getTapForID( Set<Tap> taps, String id ) 065 { 066 for( Tap tap : taps ) 067 { 068 if( Tap.id( tap ).equals( id ) ) 069 return tap; 070 } 071 072 return null; 073 } 074 075 public static FlowElement getFlowElementForID( Set<FlowElement> flowElements, String id ) 076 { 077 for( FlowElement flowElement : flowElements ) 078 { 079 if( FlowElements.id( flowElement ).equals( id ) ) 080 return flowElement; 081 } 082 083 return null; 084 } 085 086 public static FlowDef copy( FlowDef flowDef, Map<String, Tap> sources, Map<String, Tap> sinks, Map<String, Tap> traps, Map<String, Tap> checkpoints ) 087 { 088 return new FlowDef( flowDef, sources, sinks, traps, checkpoints ); 089 } 090 091 public static void fireOnCompleted( Flow flow ) 092 { 093 if( flow instanceof BaseFlow ) 094 ( (BaseFlow) flow ).fireOnCompleted(); 095 } 096 }