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1
11 package org.eclipse.jdt.internal.corext.refactoring.reorg;
12
13 import java.util.ArrayList  ;
14 import java.util.Arrays ;
15 import java.util.Comparator ;
16 import java.util.HashMap ;
17 import java.util.HashSet ;
18 import java.util.List ;
19 import java.util.Map ;
20 import java.util.Set ;
21
22 import org.eclipse.core.runtime.Assert;
23
24 import org.eclipse.core.resources.IFile;
25
26 import org.eclipse.jdt.core.IClassFile;
27 import org.eclipse.jdt.core.ICompilationUnit;
28 import org.eclipse.jdt.core.IJavaElement;
29 import org.eclipse.jdt.core.ISourceReference;
30 import org.eclipse.jdt.core.JavaModelException;
31
32
33 public class SourceReferenceUtil {
34
35 private SourceReferenceUtil(){}
37
38 public static IFile getFile(ISourceReference ref) {
39 ICompilationUnit unit= getCompilationUnit(ref);
40 return (IFile) unit.getPrimary().getResource();
41 }
42
43 public static ICompilationUnit getCompilationUnit(ISourceReference o){
44 Assert.isTrue(! (o instanceof IClassFile));
45
46 if (o instanceof ICompilationUnit)
47 return (ICompilationUnit)o;
48 if (o instanceof IJavaElement)
49 return (ICompilationUnit) ((IJavaElement)o).getAncestor(IJavaElement.COMPILATION_UNIT);
50 return null;
51 }
52
53 private static boolean hasParentInSet(IJavaElement elem, Set set){
54 IJavaElement parent= elem.getParent();
55 while (parent != null) {
56 if (set.contains(parent))
57 return true;
58 parent= parent.getParent();
59 }
60 return false;
61 }
62
63 public static ISourceReference[] removeAllWithParentsSelected(ISourceReference[] elems){
64 Set set= new HashSet (Arrays.asList(elems));
65 List result= new ArrayList (elems.length);
66 for (int i= 0; i < elems.length; i++) {
67 ISourceReference elem= elems[i];
68 if (! (elem instanceof IJavaElement))
69 result.add(elem);
70 else{
71 if (! hasParentInSet(((IJavaElement)elem), set))
72 result.add(elem);
73 }
74 }
75 return (ISourceReference[]) result.toArray(new ISourceReference[result.size()]);
76 }
77
78
81 public static Map groupByFile(ISourceReference[] elems) {
82 Map map= new HashMap ();
83 for (int i= 0; i < elems.length; i++) {
84 ISourceReference elem= elems[i];
85 IFile file= SourceReferenceUtil.getFile(elem);
86 if (! map.containsKey(file))
87 map.put(file, new ArrayList ());
88 ((List )map.get(file)).add(elem);
89 }
90 return map;
91 }
92
93 public static ISourceReference[] sortByOffset(ISourceReference[] methods){
94 Arrays.sort(methods, new Comparator (){
95 public int compare(Object o1, Object o2){
96 try{
97 return ((ISourceReference)o2).getSourceRange().getOffset() - ((ISourceReference)o1).getSourceRange().getOffset();
98 } catch (JavaModelException e){
99 return o2.hashCode() - o1.hashCode();
100 }
101 }
102 });
103 return methods;
104 }
105 }
106
107 |
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