private Map<String, byte[]> digestJar(final File file) throws IOException {
Map<String, byte[]> digest = CACHE.get(file);
if (digest == null) {
digest = new HashMap<String, byte[]>();
JarFile jar = new JarFile(file);
try {
for (Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements(); ) {
JarEntry entry = entries.nextElement();
String path = entry.getName();
if (path.endsWith(".class")) {
String type = toJavaType(path);
try {
digest.put(type, digester.digest(ClassFileReader.read(jar, path)));
} catch (ClassFormatException e) {
// the class file is old for sure, according to jdt
}
}
}
} finally {
jar.close();
}
CACHE.put(file, digest);
}
return digest;
}
private Map<String, byte[]> digestDirectory(final File directory) throws IOException {
Map<String, byte[]> digest = CACHE.get(directory);
if (digest == null) {
digest = new HashMap<String, byte[]>();
DirectoryScanner scanner = new DirectoryScanner();
scanner.setBasedir(directory);
scanner.setIncludes(new String[] {"**/*.class"});
scanner.scan();
for (String path : scanner.getIncludedFiles()) {
String type = toJavaType(path);
try {
digest.put(type, digester.digest(ClassFileReader.read(new File(directory, path))));
} catch (ClassFormatException e) {
// as far as jdt is concerned, the type does not exist
}
}
CACHE.put(directory, digest);
}
return digest;
}
