| /* |
| * 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.util; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.osgi.resource.Capability; |
| import org.osgi.service.resolver.HostedCapability; |
| import org.osgi.service.resolver.ResolveContext; |
| |
| public class ShadowList extends CandidateSelector |
| { |
| public static ShadowList createShadowList(CandidateSelector original) { |
| if (original instanceof ShadowList) |
| { |
| throw new IllegalArgumentException("Cannot create a ShadowList using another ShadowList."); |
| } |
| return new ShadowList(original.unmodifiable, original.unmodifiable, original.isUnmodifiable); |
| } |
| |
| public static ShadowList deepCopy(ShadowList original) { |
| return new ShadowList(original.unmodifiable, original.m_original, original.isUnmodifiable); |
| } |
| |
| private final List<Capability> m_original; |
| |
| private ShadowList(CandidateSelector shadow, List<Capability> original) |
| { |
| super(shadow); |
| m_original = original; |
| } |
| |
| private ShadowList(List<Capability> unmodifiable, List<Capability> original, AtomicBoolean isUnmodifiable) { |
| super(unmodifiable, isUnmodifiable); |
| m_original = new ArrayList<Capability>(original); |
| } |
| |
| public ShadowList copy() { |
| return new ShadowList(this, m_original); |
| } |
| |
| public void insertHostedCapability(ResolveContext context, HostedCapability wrappedCapability, HostedCapability toInsertCapability) { |
| checkModifiable(); |
| int removeIdx = m_original.indexOf(toInsertCapability.getDeclaredCapability()); |
| if (removeIdx != -1) |
| { |
| m_original.remove(removeIdx); |
| unmodifiable.remove(removeIdx); |
| } |
| int insertIdx = context.insertHostedCapability(m_original, toInsertCapability); |
| unmodifiable.add(insertIdx, wrappedCapability); |
| } |
| |
| public void replace(Capability origCap, Capability c) { |
| checkModifiable(); |
| int idx = unmodifiable.indexOf(origCap); |
| unmodifiable.set(idx, c); |
| } |
| } |