/** Load class from this JAR only. */
private synchronized Class _loadClass(String clazz, boolean resolveIt)
throws ClassNotFoundException {
jar.activatePlugin();
synchronized (this) {
Class cls = findLoadedClass(clazz);
if (cls != null) {
if (resolveIt) resolveClass(cls);
return cls;
}
String name = MiscUtilities.classToFile(clazz);
try {
definePackage(clazz);
ZipFile zipFile = jar.getZipFile();
ZipEntry entry = zipFile.getEntry(name);
if (entry == null) throw new ClassNotFoundException(clazz);
InputStream in = zipFile.getInputStream(entry);
int len = (int) entry.getSize();
byte[] data = new byte[len];
int success = 0;
int offset = 0;
while (success < len) {
len -= success;
offset += success;
success = in.read(data, offset, len);
if (success == -1) {
Log.log(
Log.ERROR, this, "Failed to load class " + clazz + " from " + zipFile.getName());
throw new ClassNotFoundException(clazz);
}
}
cls = defineClass(clazz, data, 0, data.length);
if (resolveIt) resolveClass(cls);
return cls;
} catch (IOException io) {
Log.log(Log.ERROR, this, io);
throw new ClassNotFoundException(clazz);
}
}
} // }}}
// {{{ definePackage(packageName, manifest) method
private void definePackage(String name, Manifest mf) {
if (mf == null) {
definePackage(name, null, null, null, null, null, null, null);
return;
}
Attributes sa = mf.getAttributes(name.replace('.', '/') + '/');
Attributes ma = mf.getMainAttributes();
URL sealBase = null;
if (Boolean.valueOf(getMfValue(sa, ma, Name.SEALED)).booleanValue()) {
try {
sealBase = jar.getFile().toURL();
} catch (MalformedURLException e) {
}
}
Package pkg =
definePackage(
name,
getMfValue(sa, ma, Name.SPECIFICATION_TITLE),
getMfValue(sa, ma, Name.SPECIFICATION_VERSION),
getMfValue(sa, ma, Name.SPECIFICATION_VENDOR),
getMfValue(sa, ma, Name.IMPLEMENTATION_TITLE),
getMfValue(sa, ma, Name.IMPLEMENTATION_VERSION),
getMfValue(sa, ma, Name.IMPLEMENTATION_VENDOR),
sealBase);
} // }}}
// {{{ definePackage(clazz) method
private void definePackage(String clazz) throws IOException {
int idx = clazz.lastIndexOf('.');
if (idx != -1) {
String name = clazz.substring(0, idx);
if (getPackage(name) == null) definePackage(name, new JarFile(jar.getFile()).getManifest());
}
} // }}}