001/* 002 * Copyright 2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.springframework.batch.core.jsr.job.flow.support.state; 017 018import java.util.ArrayList; 019import java.util.Collection; 020import java.util.List; 021 022import org.springframework.batch.core.JobExecution; 023import org.springframework.batch.core.job.flow.Flow; 024import org.springframework.batch.core.job.flow.FlowExecution; 025import org.springframework.batch.core.job.flow.FlowExecutionStatus; 026import org.springframework.batch.core.job.flow.FlowExecutor; 027import org.springframework.batch.core.jsr.job.flow.support.JsrFlow; 028 029/** 030 * JSR-352 states that artifacts cannot set the ExitStatus from within a split for a job. Because 031 * of this, this state will reset the exit status once the flows have completed (prior to aggregation 032 * of the results). 033 * 034 * @author Michael Minella 035 * @since 3.0 036 */ 037public class JsrSplitState extends org.springframework.batch.core.job.flow.support.state.SplitState { 038 039 /** 040 * @param flows {@link Flow}s to be executed in parallel 041 * @param name the name to be associated with the split state. 042 */ 043 public JsrSplitState(Collection<Flow> flows, String name) { 044 super(flows, name); 045 } 046 047 /** 048 * Resets the {@link JobExecution}'s exit status before aggregating the results of the flows within 049 * the split. 050 * 051 * @param results the {@link FlowExecution}s from each of the flows executed within this split 052 * @param executor the {@link FlowExecutor} used to execute the flows 053 */ 054 @Override 055 protected FlowExecutionStatus doAggregation(Collection<FlowExecution> results, FlowExecutor executor) { 056 List<String> stepNames = new ArrayList<String>(); 057 058 for (Flow curFlow : getFlows()) { 059 JsrFlow flow = (JsrFlow) curFlow; 060 if(flow.getMostRecentStepName() != null) { 061 stepNames.add(flow.getMostRecentStepName()); 062 } 063 } 064 065 if(!stepNames.isEmpty()) { 066 executor.getJobExecution().getExecutionContext().put("batch.lastSteps", stepNames); 067 } 068 069 executor.getJobExecution().setExitStatus(null); 070 071 return super.doAggregation(results, executor); 072 } 073}