/*
* 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.karaf.cave.server.storage;
import java.io.IOException;
import java.io.Writer;
import java.net.URI;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import javax.xml.stream.XMLStreamException;
import org.apache.karaf.features.internal.repository.StaxParser;
import org.apache.karaf.features.internal.repository.XmlRepository;
import org.osgi.resource.Resource;
public class OsgiRepository extends XmlRepository {
OsgiLoader loader;
public OsgiRepository(String url, String name) {
this(url);
StaxParser.XmlRepository repository = new StaxParser.XmlRepository();
repository.name = name;
loader = new OsgiLoader(url, repository);
getLoaders().put(url, loader);
}
public OsgiRepository(String url) {
super(url, -1, false);
}
public long getIncrement() {
load();
return loader.getXml().increment;
}
public void writeRepository(Writer writer) throws XMLStreamException {
StaxParser.write(loader.getXml(), writer);
}
private void load() {
// Force repository load
getResources();
}
public void addResourcesAndSave(List<Resource> resources) throws XMLStreamException, IOException {
lock.writeLock().lock();
try {
load();
for (Resource resource : resources) {
loader.getXml().resources.add(resource);
addResource(resource);
}
loader.getXml().increment = System.currentTimeMillis();
try (Writer writer = Files.newBufferedWriter(Paths.get(URI.create(getUrl())), StandardCharsets.UTF_8)) {
StaxParser.write(loader.getXml(), writer);
}
} finally {
lock.writeLock().unlock();
}
}
protected static class OsgiLoader extends XmlLoader {
public OsgiLoader(String url) {
super(url, -1);
}
public OsgiLoader(String url, StaxParser.XmlRepository xml) {
super(url, -1, xml);
}
public StaxParser.XmlRepository getXml() {
return xml;
}
}
}