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1
23 package org.hammurapi;
24
25 import java.lang.reflect.Method  ;
26 import java.util.Collection ;
27
28 import org.apache.tools.ant.BuildException;
29 import org.apache.tools.ant.Project;
30 import org.hammurapi.results.AggregatedResults;
31 import org.hammurapi.results.ResultsFactory;
32
33 import com.pavelvlasov.jsel.Repository;
34 import com.pavelvlasov.review.SourceMarker;
35 import com.pavelvlasov.util.DispatchingVisitor;
36 import com.pavelvlasov.util.OrderedTarget;
37 import com.pavelvlasov.util.VisitorExceptionSink;
38 import com.pavelvlasov.util.VisitorStack;
39 import com.pavelvlasov.util.VisitorStackSource;
40
41
46 public class SimpleReviewEngine implements VisitorStackSource {
47 private DispatchingVisitor visitor;
48
49 public SimpleReviewEngine(Collection inspectors, final HammurapiTask task) {
50 VisitorExceptionSink esink=new VisitorExceptionSink() {
51
52 public void consume(DispatchingVisitor dispatcher, Object visitor, Method method, Object visitee, Exception e) {
53 task.log("WARN: Exception in "+visitee, Project.MSG_WARN);
54 e.printStackTrace();
55
56 AggregatedResults results=ResultsFactory.getThreadResults();
57 if (task.failOnFirstException) {
58 throw new BuildException("Cause: "+e, e);
59 } else if (results==null || e instanceof HammurapiNonConsumableException) {
60 task.setHadExceptions();
61 } else {
62 results.addWarning(new SimpleViolation(visitee instanceof SourceMarker ? (SourceMarker) visitee : null, "Exception "+e, null));
63 }
64
65 if (task.evictBadInspectors) {
66 dispatcher.remove(visitor);
67 if (visitor instanceof Inspector) {
68 String name=((Inspector) visitor).getContext().getDescriptor().getName();
69 results.addWarning(new SimpleViolation(visitee instanceof SourceMarker ? (SourceMarker) visitee : null, "Inspector "+name+" threw "+e+" and has been disabled", null));
70 }
71 }
72 }
73 };
74 visitor = new DispatchingVisitor(inspectors, esink, getListener(task));
75 }
76
77 public void review(Repository repository) {
78 repository.accept(visitor);
79 }
80
81 protected static DispatchingVisitor.Listener getListener(final HammurapiTask task) {
82 if (task.getDebugType()==null) {
83 return null;
84 }
85
86 return new DispatchingVisitor.Listener() {
87 private boolean isEnabled=true;
88 private Class type;
89
90 private void log(String message) {
91 task.log(message, Project.MSG_INFO);
92 }
93
94 boolean isListeningFor(Object o) {
95 if (isEnabled) {
96 if (type==null) {
97 try {
98 type=o.getClass().getClassLoader().loadClass(task.getDebugType());
99 } catch (ClassNotFoundException e) {
100 task.log(e.toString(), Project.MSG_WARN);
101 isEnabled=false;
102 return false;
103 }
104 }
105 return type.isAssignableFrom(o.getClass());
106
107 }
108
109 return false;
110 }
111
112 public void onInvocationRegistration(Object target, Method method) {
113 log("\tDispatch invocaton registration");
114 log("\t\tTarget type: "+target.getClass());
115 log("\t\tTarget method: "+method);
116 }
117
118 public void onInvocation(Object target, Method method, Object visitable) {
119 if (isListeningFor(visitable)) {
120 log("Dispatch invocation");
121 log("\tTarget type: "+target.getClass());
122 log("\tTarget method: "+method);
123 log("\tVisitable type: "+visitable.getClass());
124 log("\tVisitable: "+visitable);
125 }
126 }
127
128 public void onVisit(Object target) {
129 if (isListeningFor(target)) {
130 log("Dispatch visit");
131 log("\tVisitable type: "+target.getClass());
132 log("\tVisitable: "+target);
133 }
134 }
135
136 public void onLeave(Object target) {
137 if (isListeningFor(target)) {
138 log("Dispatch leave");
139 log("\tVisitable type: "+target.getClass());
140 log("\tVisitable: "+target);
141 }
142 }
143
144 public void onTargetRegistration(Object target) {
145 log("Dispatch type registration");
146 log("\tTarget type: "+target.getClass());
147 if (target instanceof OrderedTarget) {
148 log("\tOrder: "+((OrderedTarget) target).getOrder());
149 }
150 }
151
152 public void noInvocationsWarning(Object target) {
153 log("WARNING: No invocations for type: "+target.getClass());
154 }
155
156 public void onFilterRegistration(Method filter, Method target) {
157 log("\tFilter registration");
158 log("\t\tFilter method: "+filter);
159 log("\t\tTarget method: "+target);
160 }
161 };
162 }
163
164 public VisitorStack getVisitorStack() {
165 return visitor.getVisitorStack();
166 }
167
168 public DispatchingVisitor getVisitor() {
169 return visitor;
170 }
171 }
172 |
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