| /* |
| * 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.felix.utils.repository; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.felix.utils.resource.CapabilitySet; |
| import org.apache.felix.utils.resource.RequirementImpl; |
| import org.apache.felix.utils.resource.SimpleFilter; |
| import org.osgi.framework.Constants; |
| import org.osgi.resource.Capability; |
| import org.osgi.resource.Requirement; |
| import org.osgi.resource.Resource; |
| import org.osgi.service.repository.Repository; |
| |
| /** |
| */ |
| public class BaseRepository implements Repository { |
| |
| protected final List<Resource> resources; |
| protected final Map<String, CapabilitySet> capSets; |
| |
| public BaseRepository() { |
| this.resources = new ArrayList<>(); |
| this.capSets = new HashMap<>(); |
| } |
| |
| public BaseRepository(Collection<Resource> resources) { |
| this(); |
| for (Resource resource : resources) { |
| addResource(resource); |
| } |
| } |
| |
| protected void addResource(Resource resource) { |
| for (Capability cap : resource.getCapabilities(null)) { |
| String ns = cap.getNamespace(); |
| CapabilitySet cs = capSets.get(ns); |
| if (cs == null) { |
| cs = new CapabilitySet(Collections.singletonList(ns)); |
| capSets.put(ns, cs); |
| } |
| cs.addCapability(cap); |
| } |
| resources.add(resource); |
| } |
| |
| public List<Resource> getResources() { |
| return resources; |
| } |
| |
| @Override |
| public Map<Requirement, Collection<Capability>> findProviders(Collection<? extends Requirement> requirements) { |
| Map<Requirement, Collection<Capability>> result = new HashMap<>(); |
| for (Requirement requirement : requirements) { |
| CapabilitySet set = capSets.get(requirement.getNamespace()); |
| if (set != null) { |
| SimpleFilter sf; |
| if (requirement instanceof RequirementImpl) { |
| sf = ((RequirementImpl) requirement).getFilter(); |
| } else { |
| String filter = requirement.getDirectives().get(Constants.FILTER_DIRECTIVE); |
| sf = (filter != null) |
| ? SimpleFilter.parse(filter) |
| : SimpleFilter.MATCH_ALL_FILTER; |
| } |
| result.put(requirement, set.match(sf, true)); |
| } else { |
| result.put(requirement, Collections.<Capability>emptyList()); |
| } |
| } |
| return result; |
| } |
| } |