| 1 | /* |
| 2 | * Copyright 2006-2008 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.springframework.batch.core.listener; |
| 17 | |
| 18 | import java.util.List; |
| 19 | |
| 20 | import org.springframework.batch.core.ChunkListener; |
| 21 | import org.springframework.batch.core.ExitStatus; |
| 22 | import org.springframework.batch.core.ItemProcessListener; |
| 23 | import org.springframework.batch.core.ItemReadListener; |
| 24 | import org.springframework.batch.core.ItemWriteListener; |
| 25 | import org.springframework.batch.core.SkipListener; |
| 26 | import org.springframework.batch.core.StepExecution; |
| 27 | import org.springframework.batch.core.StepExecutionListener; |
| 28 | import org.springframework.batch.core.StepListener; |
| 29 | |
| 30 | /** |
| 31 | * Basic no-op implementations of all {@link StepListener} interfaces. |
| 32 | * |
| 33 | * @author Lucas Ward |
| 34 | * @author Robert Kasanicky |
| 35 | */ |
| 36 | public class StepListenerSupport<T,S> implements StepExecutionListener, ChunkListener, |
| 37 | ItemReadListener<T>, ItemProcessListener<T,S>, ItemWriteListener<S>, SkipListener<T, S> { |
| 38 | |
| 39 | /* (non-Javadoc) |
| 40 | * @see org.springframework.batch.core.StepExecutionListener#afterStep(org.springframework.batch.core.StepExecution) |
| 41 | */ |
| 42 | public ExitStatus afterStep(StepExecution stepExecution) { |
| 43 | return null; |
| 44 | } |
| 45 | |
| 46 | /* (non-Javadoc) |
| 47 | * @see org.springframework.batch.core.StepExecutionListener#beforeStep(org.springframework.batch.core.StepExecution) |
| 48 | */ |
| 49 | public void beforeStep(StepExecution stepExecution) { |
| 50 | } |
| 51 | |
| 52 | /* (non-Javadoc) |
| 53 | * @see org.springframework.batch.core.domain.ChunkListener#afterChunk() |
| 54 | */ |
| 55 | public void afterChunk() { |
| 56 | } |
| 57 | |
| 58 | /* (non-Javadoc) |
| 59 | * @see org.springframework.batch.core.domain.ChunkListener#beforeChunk() |
| 60 | */ |
| 61 | public void beforeChunk() { |
| 62 | } |
| 63 | |
| 64 | /* (non-Javadoc) |
| 65 | * @see org.springframework.batch.core.domain.ItemReadListener#afterRead(java.lang.Object) |
| 66 | */ |
| 67 | public void afterRead(T item) { |
| 68 | } |
| 69 | |
| 70 | /* (non-Javadoc) |
| 71 | * @see org.springframework.batch.core.domain.ItemReadListener#beforeRead() |
| 72 | */ |
| 73 | public void beforeRead() { |
| 74 | } |
| 75 | |
| 76 | /* (non-Javadoc) |
| 77 | * @see org.springframework.batch.core.domain.ItemReadListener#onReadError(java.lang.Exception) |
| 78 | */ |
| 79 | public void onReadError(Exception ex) { |
| 80 | } |
| 81 | |
| 82 | /* (non-Javadoc) |
| 83 | * @see org.springframework.batch.core.ItemWriteListener#afterWrite(java.util.List) |
| 84 | */ |
| 85 | public void afterWrite(List<? extends S> items) { |
| 86 | } |
| 87 | |
| 88 | /* (non-Javadoc) |
| 89 | * @see org.springframework.batch.core.ItemWriteListener#beforeWrite(java.util.List) |
| 90 | */ |
| 91 | public void beforeWrite(List<? extends S> items) { |
| 92 | } |
| 93 | |
| 94 | /* (non-Javadoc) |
| 95 | * @see org.springframework.batch.core.ItemWriteListener#onWriteError(java.lang.Exception, java.util.List) |
| 96 | */ |
| 97 | public void onWriteError(Exception exception, List<? extends S> items) { |
| 98 | } |
| 99 | |
| 100 | /* (non-Javadoc) |
| 101 | * @see org.springframework.batch.core.ItemProcessListener#afterProcess(java.lang.Object, java.lang.Object) |
| 102 | */ |
| 103 | public void afterProcess(T item, S result) { |
| 104 | } |
| 105 | |
| 106 | /* (non-Javadoc) |
| 107 | * @see org.springframework.batch.core.ItemProcessListener#beforeProcess(java.lang.Object) |
| 108 | */ |
| 109 | public void beforeProcess(T item) { |
| 110 | } |
| 111 | |
| 112 | /* (non-Javadoc) |
| 113 | * @see org.springframework.batch.core.ItemProcessListener#onProcessError(java.lang.Object, java.lang.Exception) |
| 114 | */ |
| 115 | public void onProcessError(T item, Exception e) { |
| 116 | } |
| 117 | |
| 118 | /* (non-Javadoc) |
| 119 | * @see org.springframework.batch.core.SkipListener#onSkipInProcess(java.lang.Object, java.lang.Throwable) |
| 120 | */ |
| 121 | public void onSkipInProcess(T item, Throwable t) { |
| 122 | } |
| 123 | |
| 124 | /* (non-Javadoc) |
| 125 | * @see org.springframework.batch.core.SkipListener#onSkipInRead(java.lang.Throwable) |
| 126 | */ |
| 127 | public void onSkipInRead(Throwable t) { |
| 128 | } |
| 129 | |
| 130 | /* (non-Javadoc) |
| 131 | * @see org.springframework.batch.core.SkipListener#onSkipInWrite(java.lang.Object, java.lang.Throwable) |
| 132 | */ |
| 133 | public void onSkipInWrite(S item, Throwable t) { |
| 134 | } |
| 135 | |
| 136 | } |