/*
* 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.features.internal.service;
import java.util.Comparator;
import org.apache.karaf.features.internal.resolver.ResolverUtil;
import org.osgi.framework.Version;
import org.osgi.resource.Resource;
public class ResourceComparator implements Comparator<Resource> {
@Override
public int compare(Resource o1, Resource o2) {
String bsn1 = ResolverUtil.getSymbolicName(o1);
String bsn2 = ResolverUtil.getSymbolicName(o2);
int c = bsn1.compareTo(bsn2);
if (c == 0) {
Version v1 = ResolverUtil.getVersion(o1);
Version v2 = ResolverUtil.getVersion(o2);
c = v1.compareTo(v2);
if (c == 0) {
c = o1.hashCode() - o2.hashCode();
}
}
return c;
}
}