| /* |
| * 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.netbeans.modules.java.classpath; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import org.netbeans.api.annotations.common.NonNull; |
| import org.netbeans.api.java.classpath.ClassPath; |
| import org.netbeans.spi.java.classpath.GlobalPathRegistryImplementation; |
| import org.openide.util.lookup.ServiceProvider; |
| |
| /** |
| * |
| * @author Tomas Zezula |
| */ |
| //@NotThreadSafe |
| @ServiceProvider(service = GlobalPathRegistryImplementation.class, position = 10_000) |
| public final class DefaultGlobalPathRegistryImplementation extends GlobalPathRegistryImplementation { |
| |
| private final Map<String,List<ClassPath>> paths = new HashMap<>(); |
| |
| @Override |
| @NonNull |
| protected Set<ClassPath> getPaths(@NonNull final String id) { |
| List<ClassPath> l = paths.get(id); |
| if (l != null && !l.isEmpty()) { |
| return Collections.unmodifiableSet(new HashSet<ClassPath>(l)); |
| } else { |
| return Collections.<ClassPath>emptySet(); |
| } |
| } |
| |
| @Override |
| @NonNull |
| protected Set<ClassPath> register( |
| @NonNull final String id, |
| @NonNull final ClassPath[] paths) { |
| final Set<ClassPath> added = new HashSet<>(); |
| List<ClassPath> l = this.paths.get(id); |
| if (l == null) { |
| l = new ArrayList<>(); |
| this.paths.put(id, l); |
| } |
| for (ClassPath path : paths) { |
| if (path == null) { |
| throw new NullPointerException("Null path encountered in " + Arrays.asList(paths) + " of type " + id); // NOI18N |
| } |
| if (!added.contains(path) && !l.contains(path)) { |
| added.add(path); |
| } |
| l.add(path); |
| } |
| return added; |
| } |
| |
| @Override |
| @NonNull |
| protected Set<ClassPath> unregister( |
| @NonNull final String id, |
| @NonNull final ClassPath[] paths) throws IllegalArgumentException { |
| final Set<ClassPath> removed = new HashSet<>(); |
| List<ClassPath> l = this.paths.get(id); |
| if (l == null) { |
| l = new ArrayList<>(); |
| } |
| List<ClassPath> l2 = new ArrayList<>(l); // in case IAE thrown below |
| for (ClassPath path : paths) { |
| if (path == null) { |
| throw new NullPointerException(); |
| } |
| if (!l2.remove(path)) { |
| throw new IllegalArgumentException("Attempt to remove nonexistent path [" + path + |
| "] from list of registered paths ["+l2+"] for id "+id+". All paths: "+this.paths); // NOI18N |
| } |
| if (!removed.contains(path) && !l2.contains(path)) { |
| removed.add(path); |
| } |
| } |
| this.paths.put(id, l2); |
| return removed; |
| } |
| |
| @Override |
| @NonNull |
| protected Set<ClassPath> clear() { |
| final Set<ClassPath> removed = new HashSet<>(); |
| for (Iterator<Map.Entry<String,List<ClassPath>>> it = paths.entrySet().iterator(); |
| it.hasNext();) { |
| final Map.Entry<String, List<ClassPath>> e = it.next(); |
| removed.addAll(e.getValue()); |
| it.remove(); |
| } |
| assert paths.isEmpty(); |
| return removed; |
| } |
| } |