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1
17
18 package org.objectweb.jac.wrappers;
19
20
21 import java.util.Arrays  ;
22 import java.util.Date ;
23 import org.aopalliance.intercept.ConstructorInvocation;
24 import org.aopalliance.intercept.MethodInvocation;
25 import org.objectweb.jac.aspects.gui.GuiAC;
26 import org.objectweb.jac.core.AspectComponent;
27 import org.objectweb.jac.core.Collaboration;
28 import org.objectweb.jac.core.Interaction;
29 import org.objectweb.jac.core.Jac;
30 import org.objectweb.jac.core.NameRepository;
31 import org.objectweb.jac.core.Wrapper;
32 import org.objectweb.jac.core.Wrapping;
33 import org.objectweb.jac.core.WrappingChain;
34 import org.objectweb.jac.core.rtti.MethodItem;
35 import org.objectweb.jac.util.Log;
36
37
40
41 public class VerboseWrapper extends Wrapper {
42
43 public static final int TIMED = 0;
44 public static final int NAMED = 1;
45 public static final int STACK = 2;
46 public static final int WRAPPERS= 3;
47
48 protected int type = TIMED;
49
50 static final String DISABLE_TRACE = "DISABLE_TRACE";
51
52 public VerboseWrapper(AspectComponent ac, int type) {
53 super(ac);
54 this.type = type;
55 }
56
57
61
62 public Object printCallingInfos(Interaction interaction) {
63
64
65 Date d1 = new Date ();
66 String on =
67 interaction.method.isStatic()
68 ? ""
69 : (" on '"
70 + NameRepository.get().getName(interaction.wrappee)
71 + "'");
72
73 System.out.println(
74 "<<< "
75 + (d1.getTime() - Jac.getStartTime().getTime())
76 + " ms: calling '" + interaction.method + "'"
77 + on
78 + ", args = "
79 + Arrays.asList(interaction.args)
80 + " >>>");
81
82
83 Object ret = interaction.proceed();
84
85
86 Date d2 = new Date ();
87 System.out.println(
88 "<<< "
89 + (d2.getTime() - Jac.getStartTime().getTime())
90 + " ms: returning '"
91 + interaction.method
92 + "'"
93 + on
94 + ", value = "
95 + ret
96 + ", duration = "
97 + (d2.getTime() - d1.getTime())
98 + " ms >>>");
99
100
101 return ret;
102 }
103
104 public Object printNamedArgs(Interaction interaction) {
105 Collaboration collab = Collaboration.get();
106 if (collab.getAttribute(DISABLE_TRACE)!=null)
107 return proceed(interaction);
108 collab.addAttribute(DISABLE_TRACE, Boolean.TRUE);
110 try {
111 String [] paramNames = GuiAC.getParameterNames(interaction.method);
112 String params =
113 interaction.method.isStatic()
114 ? ""
115 : "this=" + GuiAC.toString(interaction.wrappee);
116 Object [] args = interaction.args;
117 for (int i = 0; i < args.length; i++) {
118 if (paramNames != null) {
119 params += "," + paramNames[i] + "=" + GuiAC.toString(interaction.args[i]);
120 } else {
121 params += ",arg[" + i + "]=" + GuiAC.toString(interaction.args[i]);
122 }
123 }
124 System.out.println("Calling " + interaction.method + " with " + params);
125 } finally {
126 collab.removeAttribute(DISABLE_TRACE);
127 }
128
129 Object result = proceed(interaction);
130
131 collab.addAttribute(DISABLE_TRACE, Boolean.TRUE);
132 try {
133 if (interaction.method instanceof MethodItem) {
134 Class returnType = ((MethodItem) interaction.method).getType();
135 if (returnType != void.class) {
136 if (returnType.isArray()
137 && Object .class.isAssignableFrom(
138 returnType.getComponentType()))
139 System.out.println(
140 "Called "
141 + interaction.method
142 + " -> "
143 + Arrays.asList((Object []) result));
144 else
145 System.out.println(
146 "Called " + interaction.method + " -> " + GuiAC.toString(result));
147 }
148 }
149 } finally {
150 collab.removeAttribute(DISABLE_TRACE);
151 }
152 return result;
153 }
154
155 public Object printStackTrace(Interaction interaction) {
156 System.out.println(
157 "Calling '"
158 + interaction.method
159 + "' on '"
160 + NameRepository.get().getName(interaction.wrappee)
161 + "', args = "
162 + Arrays.asList(interaction.args));
163 new Exception ().printStackTrace();
164 return proceed(interaction);
165 }
166
167 public Object printWrappersTrace(Interaction interaction) {
168 String on =
169 interaction.method.isStatic()
170 ? ""
171 : (" on '"
172 + NameRepository.get().getName(interaction.wrappee)
173 + "'");
174
175 System.out.println(
176 "Calling '"
177 + interaction.method
178 + "'"
179 + on
180 + ", args = "
181 + Arrays.asList(interaction.args));
182 WrappingChain chain =
183 Wrapping.getWrappingChain(interaction.wrappee, interaction.method);
184 System.out.println("WrappingChain = " + chain);
185 return proceed(interaction);
186 }
187
188
190 public Object invoke(MethodInvocation invocation) throws Throwable {
191 switch (type) {
192 case TIMED:
193 return printCallingInfos((Interaction) invocation);
194 case NAMED:
195 return printNamedArgs((Interaction) invocation);
196 case STACK:
197 return printStackTrace((Interaction) invocation);
198 case WRAPPERS:
199 return printWrappersTrace((Interaction) invocation);
200 default:
201 Log.error("VerboseWrapper: unknown type "+type);
202 }
203 return invocation.proceed();
204 }
205
206 public Object construct(ConstructorInvocation invocation)
207 throws Throwable {
208 return printCallingInfos((Interaction) invocation);
209 }
210 }
211 |
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