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1
4 package org.terracotta.dso;
5
6
7 import org.eclipse.jdt.core.ElementChangedEvent;
8 import org.eclipse.jdt.core.ICompilationUnit;
9 import org.eclipse.jdt.core.IElementChangedListener;
10 import org.eclipse.jdt.core.IJavaElement;
11 import org.eclipse.jdt.core.IJavaElementDelta;
12
13
22
23 public class ElementChangedListener implements IElementChangedListener {
24 private static final boolean
25 m_debug = Boolean.getBoolean("ElementChangedListener.debug");
26
27 public void elementChanged(ElementChangedEvent ece) {
28 TcPlugin plugin = TcPlugin.getDefault();
29 IJavaElementDelta delta = ece.getDelta();
30 int kind = delta.getKind();
31 int flags = delta.getFlags();
32
33 if(m_debug) {
34 dump(delta);
35 }
36
37 switch(kind) {
38 case IJavaElementDelta.CHANGED:
39 case IJavaElementDelta.ADDED:
40 {
41 if((flags & IJavaElementDelta.F_CONTENT) != 0 ||
42 (flags & IJavaElementDelta.F_PRIMARY_RESOURCE) != 0 ||
43 ((flags & IJavaElementDelta.F_CHILDREN) != 0 &&
44 (flags & IJavaElementDelta.F_FINE_GRAINED) != 0))
45 {
46 IJavaElement elem = delta.getElement();
47
48 if(plugin.hasTerracottaNature(elem)) {
49 if(elem instanceof ICompilationUnit) {
50 TcPlugin.getDefault().inspect((ICompilationUnit)elem);
51 }
52 }
53 }
54 }
55 }
56 }
57
58 private static void dump(IJavaElementDelta delta) {
59 int kind = delta.getKind();
60 int flags = delta.getFlags();
61 StringBuffer  sb = new StringBuffer ();
62
63 sb.append(delta);
64
65 switch(kind) {
66 case IJavaElementDelta.ADDED:
67 sb.append(" ADDED");
68 IJavaElement movedFrom = delta.getMovedFromElement();
69 if(movedFrom != null) {
70 sb.append("moved_from: " + movedFrom);
71 }
72 break;
73 case IJavaElementDelta.REMOVED:
74 sb.append(" REMOVED");
75 IJavaElement movedTo = delta.getMovedToElement();
76 if(movedTo != null) {
77 sb.append("moved_to: " + movedTo);
78 }
79 break;
80 case IJavaElementDelta.CHANGED:
81 sb.append(" CHANGED");
82 break;
83 }
84
85 if((flags & IJavaElementDelta.F_CONTENT) != 0) {
86 sb.append(" F_CONTENT");
87 }
88 if((flags & IJavaElementDelta.F_MODIFIERS) != 0) {
89 sb.append(" F_MODIFIERS");
90 }
91 if((flags & IJavaElementDelta.F_CHILDREN) != 0) {
92 sb.append(" F_CHILDREN");
93
94 IJavaElementDelta[] children = delta.getAffectedChildren();
95 if(children != null && children.length > 0) {
96 sb.append("\n");
97 if(children.length == 2) {
98 if(children[0].getKind() == IJavaElementDelta.ADDED &&
99 children[1].getKind() == IJavaElementDelta.REMOVED)
100 {
101 IJavaElement fromElem = children[1].getElement();
102 IJavaElement toElem = children[0].getElement();
103
104 if(fromElem.getElementType() == toElem.getElementType()) {
105 sb.append(fromElem.getElementName() + " moved to " + toElem.getElementName());
106 }
107 }
108 }
109 for(int i = 0; i < children.length; i++) {
110 dump(children[i]);
111 }
112 }
113 }
114 if((flags & IJavaElementDelta.F_MOVED_FROM) == IJavaElementDelta.F_MOVED_FROM) {
115 sb.append(" F_MOVED_FROM");
116 }
117 if((flags & IJavaElementDelta.F_MOVED_TO) == IJavaElementDelta.F_MOVED_TO) {
118 sb.append(" F_MOVED_TO");
119 }
120 if((flags & IJavaElementDelta.F_ADDED_TO_CLASSPATH) != 0) {
121 sb.append(" F_ADDED_TO_CLASSPATH");
122 }
123 if((flags & IJavaElementDelta.F_REMOVED_FROM_CLASSPATH) != 0) {
124 sb.append(" F_REMOVED_FROM_CLASSPATH");
125 }
126 if((flags & IJavaElementDelta.F_REORDER) != 0) {
127 sb.append(" F_REORDER");
128 }
129 if((flags & IJavaElementDelta.F_OPENED) != 0) {
130 sb.append(" F_OPENED");
131 }
132 if((flags & IJavaElementDelta.F_CLOSED) != 0) {
133 sb.append(" F_CLOSED");
134 }
135 if((flags & IJavaElementDelta.F_SUPER_TYPES) != 0) {
136 sb.append(" F_SUPER_TYPES");
137 }
138 if((flags & IJavaElementDelta.F_SOURCEATTACHED) != 0) {
139 sb.append(" F_SOURCEATTACHED");
140 }
141 if((flags & IJavaElementDelta.F_SOURCEDETACHED) != 0) {
142 sb.append(" F_SOURCEDETACHED");
143 }
144 if((flags & IJavaElementDelta.F_FINE_GRAINED) != 0) {
145 sb.append(" F_FINE_GRAINED");
146 }
147 if((flags & IJavaElementDelta.F_ARCHIVE_CONTENT_CHANGED) != 0) {
148 sb.append(" F_ARCHIVE_CONTENT_CHANGED");
149 }
150 if((flags & IJavaElementDelta.F_PRIMARY_WORKING_COPY) != 0) {
151 sb.append(" F_PRIMARY_WORKING_COPY");
152 }
153 if((flags & IJavaElementDelta.F_CLASSPATH_CHANGED) != 0) {
154 sb.append(" F_CLASSPATH_CHANGED");
155 }
156 if((flags & IJavaElementDelta.F_PRIMARY_RESOURCE) != 0) {
157 sb.append(" F_PRIMARY_RESOURCE");
158 }
159
160 System.out.println(sb.toString());
161 }
162 }
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