1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.proxy2.invoker;
19
20 import java.lang.reflect.Method;
21
22 import org.apache.commons.lang3.ArrayUtils;
23 import org.apache.commons.proxy2.ProxyUtils;
24
25 /**
26 * Detached representation of a method invocation.
27 *
28 */
29 public class RecordedInvocation
30 {
31 //******************************************************************************************************************
32 // Fields
33 //******************************************************************************************************************
34
35 private final Method invokedMethod;
36 private final Object[] arguments;
37
38 //******************************************************************************************************************
39 // Constructors
40 //******************************************************************************************************************
41
42 /**
43 * Create a new RecordedInvocation instance.
44 *
45 * @param invokedMethod
46 * @param arguments
47 */
48 public RecordedInvocation(Method invokedMethod, Object[] arguments)
49 {
50 this.invokedMethod = invokedMethod;
51 this.arguments = ArrayUtils.nullToEmpty(ArrayUtils.clone(arguments));
52 }
53
54 //******************************************************************************************************************
55 // Getter/Setter Methods
56 //******************************************************************************************************************
57
58 /**
59 * Get the invokedMethod.
60 *
61 * @return Method
62 */
63 public Method getInvokedMethod()
64 {
65 return invokedMethod;
66 }
67
68 //******************************************************************************************************************
69 // Canonical Methods
70 //******************************************************************************************************************
71
72 /**
73 * {@inheritDoc}
74 */
75 @Override
76 public String toString()
77 {
78 StringBuilder buffer = new StringBuilder();
79 buffer.append(invokedMethod.getDeclaringClass().getName());
80 buffer.append(".");
81 buffer.append(invokedMethod.getName());
82 buffer.append("(");
83 int count = arguments.length;
84 for (int i = 0; i < count; i++)
85 {
86 Object arg = arguments[i];
87 if (i > 0)
88 {
89 buffer.append(", ");
90 }
91 convert(buffer, arg);
92 }
93 buffer.append(")");
94 return buffer.toString();
95 }
96
97 //******************************************************************************************************************
98 // Other Methods
99 //******************************************************************************************************************
100
101 /**
102 * Add a string representation of <code>input</code> to <code>buffer</code>.
103 *
104 * @param buffer
105 * @param input
106 */
107 protected void convert(StringBuilder buffer, Object input)
108 {
109 if (input == null)
110 {
111 buffer.append("<null>");
112 return;
113 }
114
115 // Primitive types, and non-object arrays
116 // use toString().
117 if (!(input instanceof Object[]))
118 {
119 buffer.append(input.toString());
120 return;
121 }
122 buffer.append("(");
123 buffer.append(ProxyUtils.getJavaClassName(input.getClass()));
124 buffer.append("){");
125 Object[] array = (Object[]) input;
126 int count = array.length;
127 for (int i = 0; i < count; i++)
128 {
129 if (i > 0)
130 {
131 buffer.append(", ");
132 }
133 // We use convert() again, because it could be a multi-dimensional array
134 // where each element must be converted.
135 convert(buffer, array[i]);
136 }
137 buffer.append("}");
138 }
139
140 /**
141 * Get the arguments.
142 *
143 * @return Object[]
144 */
145 public Object[] getArguments()
146 {
147 return ArrayUtils.clone(arguments);
148 }
149 }