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1
11 package org.eclipse.jdt.internal.compiler.batch;
12
13 import java.io.File  ;
14 import java.io.FilenameFilter ;
15 import java.io.IOException ;
16 import java.util.Hashtable ;
17
18 import org.eclipse.jdt.core.compiler.CharOperation;
19 import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader;
20 import org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
21 import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
22 import org.eclipse.jdt.internal.compiler.parser.ScannerHelper;
23 import org.eclipse.jdt.internal.compiler.util.Util;
24
25 public class ClasspathDirectory extends ClasspathLocation {
26
27 private char[] normalizedPath;
28 private String path;
29 private Hashtable directoryCache;
30 private String [] missingPackageHolder = new String [1];
31 private int mode; private String encoding;
34 ClasspathDirectory(File directory, String encoding, int mode,
35 AccessRuleSet accessRuleSet, String destinationPath) {
36 super(accessRuleSet, destinationPath);
37 this.mode = mode;
38 this.path = directory.getAbsolutePath();
39 if (!this.path.endsWith(File.separator))
40 this.path += File.separator;
41 this.directoryCache = new Hashtable (11);
42 this.encoding = encoding;
43 }
44 String [] directoryList(String qualifiedPackageName) {
45 String [] dirList = (String []) this.directoryCache.get(qualifiedPackageName);
46 if (dirList == this.missingPackageHolder) return null; if (dirList != null) return dirList;
48
49 File dir = new File (this.path + qualifiedPackageName);
50 notFound : if (dir.isDirectory()) {
51 int index = qualifiedPackageName.length();
54 int last = qualifiedPackageName.lastIndexOf(File.separatorChar);
55 while (--index > last && !ScannerHelper.isUpperCase(qualifiedPackageName.charAt(index))){}
56 if (index > last) {
57 if (last == -1) {
58 if (!doesFileExist(qualifiedPackageName, Util.EMPTY_STRING))
59 break notFound;
60 } else {
61 String packageName = qualifiedPackageName.substring(last + 1);
62 String parentPackage = qualifiedPackageName.substring(0, last);
63 if (!doesFileExist(packageName, parentPackage))
64 break notFound;
65 }
66 }
67 if ((dirList = dir.list()) == null)
68 dirList = CharOperation.NO_STRINGS;
69 this.directoryCache.put(qualifiedPackageName, dirList);
70 return dirList;
71 }
72 this.directoryCache.put(qualifiedPackageName, this.missingPackageHolder);
73 return null;
74 }
75 boolean doesFileExist(String fileName, String qualifiedPackageName) {
76 String [] dirList = directoryList(qualifiedPackageName);
77 if (dirList == null) return false;
79 for (int i = dirList.length; --i >= 0;)
80 if (fileName.equals(dirList[i]))
81 return true;
82 return false;
83 }
84 public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String qualifiedBinaryFileName) {
85 return findClass(typeName, qualifiedPackageName, qualifiedBinaryFileName, false);
86 }
87 public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String qualifiedBinaryFileName, boolean asBinaryOnly) {
88 if (!isPackage(qualifiedPackageName)) return null;
90 String fileName = new String (typeName);
91 boolean binaryExists = ((this.mode & BINARY) != 0) && doesFileExist(fileName + SUFFIX_STRING_class, qualifiedPackageName);
92 boolean sourceExists = ((this.mode & SOURCE) != 0) && doesFileExist(fileName + SUFFIX_STRING_java, qualifiedPackageName);
93 if (sourceExists && !asBinaryOnly) {
94 String fullSourcePath = this.path + qualifiedBinaryFileName.substring(0, qualifiedBinaryFileName.length() - 6) + SUFFIX_STRING_java;
95 if (!binaryExists)
96 return new NameEnvironmentAnswer(new CompilationUnit(null,
97 fullSourcePath, this.encoding, destinationPath),
98 fetchAccessRestriction(qualifiedBinaryFileName));
99 String fullBinaryPath = this.path + qualifiedBinaryFileName;
100 long binaryModified = new File (fullBinaryPath).lastModified();
101 long sourceModified = new File (fullSourcePath).lastModified();
102 if (sourceModified > binaryModified)
103 return new NameEnvironmentAnswer(new CompilationUnit(null,
104 fullSourcePath, this.encoding, destinationPath),
105 fetchAccessRestriction(qualifiedBinaryFileName));
106 }
107 if (binaryExists) {
108 try {
109 ClassFileReader reader = ClassFileReader.read(this.path + qualifiedBinaryFileName);
110 if (reader != null)
111 return new NameEnvironmentAnswer(
112 reader,
113 fetchAccessRestriction(qualifiedBinaryFileName));
114 } catch (Exception e) {
115 }
117 }
118 return null;
119 }
120 public char[][][] findTypeNames(String qualifiedPackageName) {
121 if (!isPackage(qualifiedPackageName)) {
122 return null; }
124 File dir = new File (this.path + qualifiedPackageName);
125 if (!dir.exists() || !dir.isDirectory()) {
126 return null;
127 }
128 String [] listFiles = dir.list(new FilenameFilter () {
129 public boolean accept(File directory, String name) {
130 String fileName = name.toLowerCase();
131 return fileName.endsWith(".class") || fileName.endsWith(".java"); }
133 });
134 int length;
135 if (listFiles == null || (length = listFiles.length) == 0) {
136 return null;
137 }
138 char[][][] result = new char[length][][];
139 char[][] packageName = CharOperation.splitOn(File.separatorChar, qualifiedPackageName.toCharArray());
140 for (int i = 0; i < length; i++) {
141 String fileName = listFiles[i];
142 int indexOfLastDot = fileName.indexOf('.');
143 result[i] = CharOperation.arrayConcat(packageName, fileName.substring(0, indexOfLastDot).toCharArray());
144 }
145 return result;
146 }
147 public void initialize() throws IOException {
148 }
150 public boolean isPackage(String qualifiedPackageName) {
151 return directoryList(qualifiedPackageName) != null;
152 }
153 public void reset() {
154 this.directoryCache = new Hashtable (11);
155 }
156 public String toString() {
157 return "ClasspathDirectory " + this.path; }
159 public char[] normalizedPath() {
160 if (this.normalizedPath == null) {
161 this.normalizedPath = this.path.toCharArray();
162 if (File.separatorChar == '\\') {
163 CharOperation.replace(this.normalizedPath, '\\', '/');
164 }
165 }
166 return this.normalizedPath;
167 }
168 public String getPath() {
169 return this.path;
170 }
171 }
172 |
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