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.plugins.assembly.internal;
20
21 import java.lang.reflect.Array;
22
23 import org.codehaus.plexus.component.configurator.ConfigurationListener;
24 import org.slf4j.Logger;
25
26 /**
27 * Copy of deprecated {@link org.apache.maven.plugin.DebugConfigurationListener} updated to Slf4j.
28 */
29 public class DebugConfigurationListener implements ConfigurationListener {
30 private final Logger logger;
31
32 public DebugConfigurationListener(Logger logger) {
33 this.logger = logger;
34 }
35
36 @Override
37 public void notifyFieldChangeUsingSetter(String fieldName, Object value, Object target) {
38 if (logger.isDebugEnabled()) {
39 logger.debug(" (s) " + fieldName + " = " + toString(value));
40 }
41 }
42
43 @Override
44 public void notifyFieldChangeUsingReflection(String fieldName, Object value, Object target) {
45 if (logger.isDebugEnabled()) {
46 logger.debug(" (f) " + fieldName + " = " + toString(value));
47 }
48 }
49
50 /**
51 * Creates a human-friendly string representation of the specified object.
52 *
53 * @param obj The object to create a string representation for, may be <code>null</code>.
54 * @return The string representation, never <code>null</code>.
55 */
56 private String toString(Object obj) {
57 String str;
58 if (obj != null && obj.getClass().isArray()) {
59 int n = Array.getLength(obj);
60 StringBuilder buf = new StringBuilder(256);
61 buf.append('[');
62 for (int i = 0; i < n; i++) {
63 if (i > 0) {
64 buf.append(", ");
65 }
66 buf.append(Array.get(obj, i));
67 }
68 buf.append(']');
69 str = buf.toString();
70 } else {
71 str = String.valueOf(obj);
72 }
73 return str;
74 }
75 }