1 /*
2 * Copyright 2006-2007 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
17 package org.springframework.batch.sample.common;
18
19 import org.apache.commons.logging.Log;
20 import org.apache.commons.logging.LogFactory;
21 import org.aspectj.lang.JoinPoint;
22
23
24 /**
25 * Wraps calls for 'Processing' methods which output a single Object to write
26 * the string representation of the object to the log.
27 *
28 * @author Lucas Ward
29 */
30 public class LogAdvice {
31
32 private static Log log = LogFactory.getLog(LogAdvice.class);
33
34 /*
35 * Wraps original method and adds logging both before and after method
36 */
37 public void doBasicLogging(JoinPoint pjp) throws Throwable {
38 Object[] args = pjp.getArgs();
39 StringBuffer output = new StringBuffer();
40
41 output.append(pjp.getTarget().getClass().getName()).append(": ");
42 output.append(pjp.toShortString()).append(": ");
43
44 for (Object arg : args) {
45 output.append(arg).append(" ");
46 }
47
48
49 log.info("Basic: " + output.toString());
50 }
51
52 public void doStronglyTypedLogging(Object item){
53 log.info("Processed: " + item);
54 }
55
56 }