| /* |
| * 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.resolver; |
| |
| import java.util.*; |
| import org.osgi.framework.namespace.ExecutionEnvironmentNamespace; |
| import org.osgi.framework.namespace.HostNamespace; |
| import org.osgi.resource.Capability; |
| import org.osgi.resource.Requirement; |
| import org.osgi.resource.Resource; |
| |
| class WrappedResource implements Resource |
| { |
| private final Resource m_host; |
| private final List<Resource> m_fragments; |
| private final List<Capability> m_cachedCapabilities; |
| private final List<Requirement> m_cachedRequirements; |
| |
| public WrappedResource(Resource host, List<Resource> fragments) |
| { |
| m_host = host; |
| m_fragments = fragments; |
| |
| // Wrap host capabilities. |
| List<Capability> caps = new ArrayList<Capability>(); |
| for (Capability cap : m_host.getCapabilities(null)) |
| { |
| caps.add(new WrappedCapability(this, cap)); |
| } |
| |
| // Wrap fragment capabilities. |
| if (m_fragments != null) |
| { |
| for (Resource fragment : m_fragments) |
| { |
| for (Capability cap : fragment.getCapabilities(null)) |
| { |
| caps.add(new WrappedCapability(this, cap)); |
| } |
| } |
| } |
| m_cachedCapabilities = Collections.unmodifiableList(caps); |
| |
| // Wrap host requirements. |
| List<Requirement> reqs = new ArrayList<Requirement>(); |
| for (Requirement req : m_host.getRequirements(null)) |
| { |
| reqs.add(new WrappedRequirement(this, req)); |
| } |
| |
| // Wrap fragment requirements. |
| if (m_fragments != null) |
| { |
| for (Resource fragment : m_fragments) |
| { |
| for (Requirement req : fragment.getRequirements(null)) |
| { |
| // Filter out host and execution environment requirements, |
| // since they are not part of the fragment payload. |
| if (!req.getNamespace().equals(HostNamespace.HOST_NAMESPACE) |
| && !req.getNamespace().equals( |
| ExecutionEnvironmentNamespace.EXECUTION_ENVIRONMENT_NAMESPACE)) |
| { |
| reqs.add(new WrappedRequirement(this, req)); |
| } |
| } |
| } |
| } |
| m_cachedRequirements = Collections.unmodifiableList(reqs); |
| } |
| |
| public Resource getDeclaredResource() |
| { |
| return m_host; |
| } |
| |
| public List<Resource> getFragments() |
| { |
| return m_fragments; |
| } |
| |
| public List<Capability> getCapabilities(String namespace) |
| { |
| if (namespace != null) { |
| List<Capability> filtered = new ArrayList<Capability>(); |
| for (Capability capability : m_cachedCapabilities) { |
| if (namespace.equals(capability.getNamespace())) { |
| filtered.add(capability); |
| } |
| } |
| return Collections.unmodifiableList(filtered); |
| } |
| return m_cachedCapabilities; |
| } |
| |
| public List<Requirement> getRequirements(String namespace) |
| { |
| if (namespace != null) { |
| List<Requirement> filtered = new ArrayList<Requirement>(); |
| for (Requirement requirement : m_cachedRequirements) { |
| if (namespace.equals(requirement.getNamespace())) { |
| filtered.add(requirement); |
| } |
| } |
| return Collections.unmodifiableList(filtered); |
| } |
| return m_cachedRequirements; |
| } |
| |
| public String toString() |
| { |
| return m_host.toString(); |
| } |
| } |