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1 package org.picocontainer.monitors;
2
3 import java.lang.reflect.Constructor  ;
4 import java.lang.reflect.Method ;
5 import java.util.ArrayList ;
6 import java.util.Collection ;
7 import java.util.Iterator ;
8 import java.util.List ;
9
10 import org.picocontainer.ComponentMonitor;
11 import org.picocontainer.PicoException;
12
13
20 public class LifecycleComponentMonitor implements ComponentMonitor {
21
22 private final ComponentMonitor delegate;
23 private final List lifecycleFailures = new ArrayList ();
24
25 public LifecycleComponentMonitor(ComponentMonitor delegate) {
26 this.delegate = delegate;
27 }
28
29 public LifecycleComponentMonitor() {
30 delegate = new NullComponentMonitor();
31 }
32
33 public void instantiating(Constructor constructor) {
34 delegate.instantiating(constructor);
35 }
36
37 public void instantiated(Constructor constructor, long duration) {
38 delegate.instantiated(constructor, duration);
39 }
40
41 public void instantiated(Constructor constructor, Object instantiated, Object [] parameters, long duration) {
42 delegate.instantiated(constructor, instantiated, parameters, duration);
43 }
44
45 public void instantiationFailed(Constructor constructor, Exception cause) {
46 delegate.instantiationFailed(constructor, cause);
47 }
48
49 public void invoking(Method method, Object instance) {
50 delegate.invoking(method, instance);
51 }
52
53 public void invoked(Method method, Object instance, long duration) {
54 delegate.invoked(method, instance, duration);
55 }
56
57 public void invocationFailed(Method method, Object instance, Exception cause) {
58 delegate.invocationFailed(method, instance, cause);
59 }
60
61 public void lifecycleInvocationFailed(Method method, Object instance, RuntimeException cause) {
62 lifecycleFailures.add(cause);
63 delegate.lifecycleInvocationFailed(method, instance, cause);
64 }
65
66
67 public void rethrowLifecycleFailuresException() {
68 throw new LifecycleFailuresException(lifecycleFailures);
69 }
70
71
78 public class LifecycleFailuresException extends PicoException {
79
80 private List lifecycleFailures;
81
82 public LifecycleFailuresException(List lifecycleFailures) {
83 this.lifecycleFailures = lifecycleFailures;
84 }
85
86 public String getMessage() {
87 StringBuffer message = new StringBuffer ();
88 for ( Iterator i = lifecycleFailures.iterator(); i.hasNext(); ) {
89 Exception failure = (Exception ) i.next();
90 message.append(failure.getMessage()).append("; ");
91 }
92 return message.toString();
93 }
94
95 public Collection getFailures() {
96 return lifecycleFailures;
97 }
98 }
99 }
100 |
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Java API By Example, From Geeks To Geeks.