org.apache.openjpa.lib.util.ZipResourceBundleProvider Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.lib.util;
import java.io.IOException;
import java.io.InputStream;
import java.security.AccessController;
import java.util.Locale;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
/**
* {@link ResourceBundleProvider} that expects the
* {@link ClassLoader#getResourceAsStream} method to return a zipped input
* stream. Created for use under Weblogic RARs.
*
* @author Patrick Linskey
*/
class ZipResourceBundleProvider implements ResourceBundleProvider {
@Override
public ResourceBundle findResource(String name, Locale locale,
ClassLoader loader) {
String rsrc = name.replace('.', '/') + ".properties";
if (loader == null)
loader = AccessController.doPrivileged(
J2DoPrivHelper.getContextClassLoaderAction());
InputStream in = loader.getResourceAsStream(rsrc);
if (in == null)
return null;
ZipInputStream zip = new ZipInputStream(in);
try {
ZipEntry ze;
while (true) {
ze = zip.getNextEntry();
if (ze == null)
break;
if (rsrc.equals(ze.getName()))
return new PropertyResourceBundle(zip);
zip.closeEntry();
}
} catch (Exception e) {
} finally {
try {
zip.close();
} catch (IOException ioe) {
}
}
return null;
}
}