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1
22 package org.jboss.aop;
23
24 import java.lang.ref.WeakReference  ;
25 import java.util.ArrayList ;
26 import java.util.Arrays ;
27
28 import org.jboss.aop.advice.Interceptor;
29 import org.jboss.aop.joinpoint.Joinpoint;
30
31 public abstract class JoinPointInfo
32 {
33 private Interceptor[] interceptors;
34
35 private ArrayList interceptorChain = new ArrayList ();
36
37 private WeakReference advisor;
38
39 protected volatile Joinpoint joinpoint;
40
41 protected WeakReference clazz;
42
43 protected JoinPointInfo()
44 {
45 this.clazz = new WeakReference (null);
46 }
47
48 protected JoinPointInfo(Advisor advisor, Class clazz)
49 {
50 setAdvisor(advisor);
51 this.clazz = new WeakReference (clazz);
52 }
53
54
57 protected JoinPointInfo(JoinPointInfo other)
58 {
59 this.advisor = other.advisor;
60 if (other.interceptors != null)
61 {
62 this.interceptors = new Interceptor[other.interceptors.length];
63 System.arraycopy(other.interceptors, 0, this.interceptors, 0, other.interceptors.length);
64 }
65 if (other.interceptorChain != null)this.interceptorChain = (ArrayList )interceptorChain.clone();
66 }
67
68 protected void clear()
69 {
70 interceptorChain.clear();
71 interceptors = null;
72 }
73
74 public Advisor getAdvisor()
75 {
76 if (advisor == null)
77 {
78 return null;
79 }
80 return (Advisor)advisor.get();
81 }
82
83 public Class getClazz()
84 {
85 return (Class )clazz.get();
86 }
87
88 public void setAdvisor(Advisor advisor)
89 {
90 this.advisor = new WeakReference (advisor);
91 }
92
93 public boolean hasAdvices()
94 {
95 return (interceptors != null && interceptors.length > 0) ;
96 }
97
98 public boolean equalChains(JoinPointInfo other)
99 {
100 if (this.interceptors == null && other.interceptors == null) return true;
101 if (!(this.interceptors != null && other.interceptors != null))return false;
102 if (this.interceptors.length != other.interceptors.length) return false;
103
104 for (int i = 0 ; i < this.interceptors.length ; i++)
105 {
106 if(!this.interceptors[i].equals(other.interceptors[i])) return false;
107 }
108
109 return true;
110 }
111
112 public Joinpoint getJoinpoint()
113 {
114 if (joinpoint == null)
115 {
116 joinpoint = internalGetJoinpoint();
117 }
118 return joinpoint;
119 }
120
121 public ArrayList getInterceptorChain() {
122 return interceptorChain;
123 }
124
125 public void setInterceptorChain(ArrayList interceptorChain) {
126 this.interceptorChain = interceptorChain;
127 }
128
129 public Interceptor[] getInterceptors() {
130 return interceptors;
131 }
132
133 public void setInterceptors(Interceptor[] interceptors) {
134 this.interceptors = interceptors;
135 }
136
137 protected abstract Joinpoint internalGetJoinpoint();
138 public abstract JoinPointInfo copy();
139 }
140 |
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