|
1
22 package org.jboss.aop.instrument;
23
24 import java.lang.reflect.Constructor  ;
25
26 import org.jboss.aop.AspectManager;
27 import org.jboss.aop.classpool.AOPClassPool;
28
29
35 public class InstrumentorFactory
36 {
37 protected static InstrumentorEnum instrumentor;
38
39 protected static Constructor otherInstrumentorConstructor;
40
41 private static final Class [] CONSTRUCTOR_SIG = new Class [] {AOPClassPool.class, AspectManager.class, JoinpointClassifier.class, DynamicTransformationObserver.class};
42
43 public static void initialise(String property)
44 {
45 if (AspectManager.verbose)
46 {
47 System.out.println("[debug] Passed in instrumentor: " + property);
48 }
49
50 if (property != null)
51 {
52 if (property.equals(ClassicInstrumentor.class.getName()))
53 {
54 instrumentor = InstrumentorEnum.CLASSIC;
55 }
56 else if (property.equals(GeneratedAdvisorInstrumentor.class.getName()))
57 {
58 instrumentor = InstrumentorEnum.GENERATED_ADVISOR;
59 }
60 else
61 {
62
63 try
64 {
65 Class otherInstrumentorClass = Thread.currentThread().getContextClassLoader().loadClass(property);
66 otherInstrumentorConstructor = otherInstrumentorClass.getConstructor(CONSTRUCTOR_SIG);
67 instrumentor = InstrumentorEnum.OTHER_INSTRUMENTOR;
68 }
69 catch (ClassNotFoundException e)
70 {
71 throw new RuntimeException ("Invalid instrumentor " + property + " was used");
72 }
73 catch(NoSuchMethodException e)
74 {
75 throw new RuntimeException (property + " does not have a constructor with the expected signature");
76 }
77 }
78 }
79 else
80 {
81 if (AspectManager.verbose)
82 {
83 System.out.println("[debug] Defaulting instrumentor to: " + ClassicInstrumentor.class.getName());
84 }
85 instrumentor = InstrumentorEnum.GENERATED_ADVISOR;
86 }
87 }
88
89 public static InstrumentorEnum getInstrumentor()
90 {
91 return instrumentor;
92 }
93
94 public static Instrumentor getInstrumentor(AOPClassPool pool, AspectManager manager, JoinpointClassifier joinpointClassifier, DynamicTransformationObserver observer)
95 {
96 if (instrumentor == InstrumentorEnum.CLASSIC)
97 {
98 return new ClassicInstrumentor(pool, manager, joinpointClassifier, observer);
99 }
100 else if (instrumentor == InstrumentorEnum.GENERATED_ADVISOR)
101 {
102 return new GeneratedAdvisorInstrumentor(pool, manager, joinpointClassifier, observer);
103 }
104 else if (otherInstrumentorConstructor != null)
105 {
106 try
107 {
108 return (Instrumentor) otherInstrumentorConstructor.newInstance(new Object [] {pool, manager, joinpointClassifier, observer});
109 }
110 catch (Exception e)
111 {
112 throw new RuntimeException (e);
113 }
114 }
115 else
116 {
117 throw new RuntimeException ("Instrumentor is not set");
118 }
119 }
120
121
122 public static Instrumentor getInstrumentor(AspectManager manager, JoinpointClassifier joinpointClassifier)
123 {
124 if (instrumentor == InstrumentorEnum.CLASSIC)
125 {
126 return new ClassicInstrumentor(manager, joinpointClassifier);
127 }
128 else if (instrumentor == InstrumentorEnum.GENERATED_ADVISOR)
129 {
130 return new GeneratedAdvisorInstrumentor(manager, joinpointClassifier);
131 }
132 else
133 {
134 throw new RuntimeException ("Instrumentor is not set");
135 }
136 }
137
138 public static String getInstrumentorName()
139 {
140 if (instrumentor == InstrumentorEnum.CLASSIC)
141 {
142 return ClassicInstrumentor.class.getName();
143 }
144 else if (instrumentor == InstrumentorEnum.GENERATED_ADVISOR)
145 {
146 return GeneratedAdvisorInstrumentor.class.getName();
147 }
148 else if (instrumentor == InstrumentorEnum.OTHER_INSTRUMENTOR)
149 {
150 return otherInstrumentorConstructor.getName();
151 }
152 else
153 {
154 throw new RuntimeException ("Instrumentor is not set");
155 }
156 }
157
158 }
159 |
Popular Tags |
Java API By Example, From Geeks To Geeks.