1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.plugin;
20
21 import java.lang.reflect.Array;
22
23 import org.codehaus.plexus.component.configurator.ConfigurationListener;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
26
27 /**
28 * Log at debug level the mojo configuration.
29 *
30 */
31 @Deprecated
32 public class DebugConfigurationListener implements ConfigurationListener {
33 private final Logger logger;
34
35 /**
36 * @deprecated Use {@link #DebugConfigurationListener(Logger)} instead.
37 */
38 @Deprecated
39 public DebugConfigurationListener(org.codehaus.plexus.logging.Logger logger) {
40 this(LoggerFactory.getLogger(logger.getName()));
41 }
42
43 public DebugConfigurationListener(Logger logger) {
44 this.logger = logger;
45 }
46
47 @Override
48 public void notifyFieldChangeUsingSetter(String fieldName, Object value, Object target) {
49 if (logger.isDebugEnabled()) {
50 logger.debug(" (s) " + fieldName + " = " + toString(value));
51 }
52 }
53
54 @Override
55 public void notifyFieldChangeUsingReflection(String fieldName, Object value, Object target) {
56 if (logger.isDebugEnabled()) {
57 logger.debug(" (f) " + fieldName + " = " + toString(value));
58 }
59 }
60
61 /**
62 * Creates a human-friendly string representation of the specified object.
63 *
64 * @param obj The object to create a string representation for, may be <code>null</code>.
65 * @return The string representation, never <code>null</code>.
66 */
67 private String toString(Object obj) {
68 String str;
69 if (obj != null && obj.getClass().isArray()) {
70 int n = Array.getLength(obj);
71 StringBuilder buf = new StringBuilder(256);
72 buf.append('[');
73 for (int i = 0; i < n; i++) {
74 if (i > 0) {
75 buf.append(", ");
76 }
77 buf.append(Array.get(obj, i));
78 }
79 buf.append(']');
80 str = buf.toString();
81 } else {
82 str = String.valueOf(obj);
83 }
84 return str;
85 }
86 }