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19 package org.netbeans.modules.java.source.usages;
20
21 import javax.lang.model.element.ElementKind;
22 import javax.lang.model.element.TypeElement;
23 import org.netbeans.api.java.source.ElementHandle;
24 import org.netbeans.modules.java.source.ElementHandleAccessor;
25 import org.netbeans.modules.java.source.parsing.FileObjects;
26 import org.openide.filesystems.FileObject;
27
28
32 public abstract class ResultConvertor<T> {
33
34 public abstract T convert (ElementKind kind, String  value);
35
36
37 public static ResultConvertor<FileObject> fileObjectConvertor (final FileObject... roots) {
38 assert roots != null;
39 return new FileObjectConvertor (roots);
40 }
41
42 public static ResultConvertor<ElementHandle<TypeElement>> elementHandleConvertor () {
43 return new ElementHandleConvertor ();
44 }
45
46 public static ResultConvertor<String > identityConvertor () {
47 return new IdentityConvertor ();
48 }
49
50
51 private static class FileObjectConvertor extends ResultConvertor<FileObject> {
52
53 private FileObject[] roots;
54
55 private FileObjectConvertor (final FileObject... roots) {
56 this.roots = roots;
57 }
58
59 public FileObject convert (ElementKind kind, String value) {
60 for (int i=0; i<roots.length; i++) {
61 FileObject result = resolveFile (roots[i], value);
62 if (result != null) {
63 return result;
64 }
65 }
66 return null;
67 }
68
69 private static FileObject resolveFile (final FileObject root, String classBinaryName) {
70 assert classBinaryName != null;
71 classBinaryName = classBinaryName.replace('.', '/'); int index = classBinaryName.lastIndexOf('/'); FileObject folder;
74 String name;
75 if (index<0) {
76 folder = root;
77 name = classBinaryName;
78 }
79 else {
80 assert index>0 : classBinaryName;
81 assert index<classBinaryName.length() - 1 : classBinaryName;
82 folder = root.getFileObject(classBinaryName.substring(0,index));
83 name = classBinaryName.substring(index+1);
84 }
85 if (folder == null) {
86 return null;
87 }
88 index = name.indexOf('$'); if (index>0) {
90 name = name.substring(0, index);
91 }
92 for (FileObject child : folder.getChildren()) {
93 if (FileObjects.JAVA.equalsIgnoreCase(child.getExt()) && name.equals(child.getName())) {
94 return child;
95 }
96 }
97 return null;
98 }
99 }
100
101 private static class ElementHandleConvertor extends ResultConvertor<ElementHandle<TypeElement>> {
102
103 public ElementHandle<TypeElement> convert (final ElementKind kind, final String value) {
104 return createTypeHandle(kind, value);
105 }
106
107 @SuppressWarnings ("unchecked") private static ElementHandle<TypeElement> createTypeHandle (final ElementKind kind, final String binaryName) {
109 assert binaryName != null;
110 return ElementHandleAccessor.INSTANCE.create(kind, binaryName);
111 }
112
113 }
114
115 private static class IdentityConvertor extends ResultConvertor<String > {
116
117 public String convert (ElementKind kind, String value) {
118 return value;
119 }
120 }
121 }
122 |
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