001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.commons.pipeline.testFramework; 019 020 import java.util.ArrayList; 021 import java.util.Collections; 022 import java.util.List; 023 import org.apache.commons.logging.Log; 024 import org.apache.commons.logging.LogFactory; 025 import org.apache.commons.pipeline.Stage; 026 import org.apache.commons.pipeline.StageContext; 027 import org.apache.commons.pipeline.StageException; 028 import org.apache.commons.pipeline.validation.ConsumedTypes; 029 import org.apache.commons.pipeline.validation.ProducesConsumed; 030 031 @ConsumedTypes(Object.class) 032 @ProducesConsumed 033 public class TestStage implements Stage { 034 private Log log = LogFactory.getLog(TestStage.class); 035 private int index; 036 private StageContext context; 037 038 public List<Object> processedObjects = Collections.synchronizedList(new ArrayList<Object>()); 039 public boolean initialized = false; 040 public boolean preprocessed = false; 041 public boolean postprocessed = false; 042 public boolean released = false; 043 044 /** 045 * Construct a TestStage with a numeric index used to easily identify this stage. 046 * The {@link getIndex} and {@link toString} methods use this index. 047 * @param index acts as an identification number 048 */ 049 public TestStage(int index) { 050 this.index = index; 051 } 052 053 public int getIndex() { 054 return this.index; 055 } 056 057 public void init(StageContext context) { 058 this.context = context; 059 this.initialized = true; 060 } 061 062 public void preprocess() throws StageException { 063 this.preprocessed = true; 064 } 065 066 public void process(Object obj) throws StageException { 067 log.info(this + " is processing object " + obj); 068 this.processedObjects.add(obj); 069 this.context.getDownstreamFeeder(this).feed(obj); 070 } 071 072 public void postprocess() throws StageException { 073 this.postprocessed = true; 074 } 075 076 public void release() { 077 this.released = true; 078 } 079 080 public String toString() { 081 return "TEST STAGE (" + this.index + ")"; 082 } 083 }