/*
* 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 org.apache.aries.subsystem.core.internal;
import java.util.Comparator;
import java.util.List;
import org.osgi.framework.namespace.IdentityNamespace;
import org.osgi.resource.Capability;
import org.osgi.resource.Resource;
public class InstallResourceComparator implements Comparator<Resource> {
@Override
public int compare(Resource r1, Resource r2) {
String r1type = getResourceType(r1);
String r2type = getResourceType(r2);
if (r1type.equals(r2type))
return 0;
if (r1type.startsWith("osgi.subsystem"))
return 1;
return -1;
}
private String getResourceType(Resource r) {
List<Capability> cl = r.getCapabilities(IdentityNamespace.IDENTITY_NAMESPACE);
Capability c = cl.get(0);
Object o = c.getAttributes().get(IdentityNamespace.CAPABILITY_TYPE_ATTRIBUTE);
return String.valueOf(o);
}
}