com.hotels.styx.api.io.ZipResourceIteratorFactory Maven / Gradle / Ivy
/*
Copyright (C) 2013-2018 Expedia Inc.
Licensed 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 com.hotels.styx.api.io;
import com.hotels.styx.api.Resource;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.Iterator;
/**
* Factory which creates {@link ZipResourceIterator}s for URL's with the "jar"
* protocol.
*/
public class ZipResourceIteratorFactory implements ResourceIteratorFactory {
@Override
public boolean isFactoryFor(URL url) {
return "jar".equals(url.getProtocol());
}
@Override
public Iterator createIterator(URL url, String path, String suffix) {
try {
String jarPath = filePath(url);
return new ZipResourceIterator(jarPath, path, suffix);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
static String filePath(URL jarUrl) throws UnsupportedEncodingException, MalformedURLException {
String path = new File(new URL(jarUrl.getFile()).getFile()).getAbsolutePath();
String pathToJar = path.substring(0, path.lastIndexOf("!"));
return URLDecoder.decode(pathToJar, "UTF-8");
}
}