001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.commons.weaver.model; 020 021import java.util.Collections; 022import java.util.concurrent.ConcurrentNavigableMap; 023import java.util.concurrent.ConcurrentSkipListMap; 024 025/** 026 * {@link Weavable} {@link Package}. 027 */ 028public class WeavablePackage extends Weavable<WeavablePackage, Package> { 029 030 private final ConcurrentNavigableMap<String, WeavableClass<?>> clazzes = 031 new ConcurrentSkipListMap<String, WeavableClass<?>>(); 032 033 /** 034 * Create a new {@link WeavablePackage} instance. 035 * @param target package 036 */ 037 public WeavablePackage(final Package target) { 038 super(target); 039 } 040 041 /** 042 * Get a {@link WeavableClass} representing {@code cls}. 043 * @param cls to wrap 044 * @param <T> generic type of {@code cls} 045 * @return {@link WeavableClass} 046 */ 047 public synchronized <T> WeavableClass<T> getWeavable(final Class<T> cls) { 048 final String key = cls.getName(); 049 if (clazzes.containsKey(key)) { 050 @SuppressWarnings("unchecked") 051 final WeavableClass<T> result = (WeavableClass<T>) clazzes.get(key); 052 return result; 053 } 054 final WeavableClass<T> result = new WeavableClass<T>(cls, this); 055 @SuppressWarnings("unchecked") 056 final WeavableClass<T> faster = (WeavableClass<T>) clazzes.putIfAbsent(key, result); 057 return faster == null ? result : faster; 058 } 059 060 /** 061 * Get enclosed {@link WeavableClass}es. 062 * @return {@link Iterable} 063 */ 064 public Iterable<WeavableClass<?>> getClasses() { 065 return Collections.unmodifiableCollection(clazzes.values()); 066 } 067 068 /** 069 * Implement {@link Comparable}. 070 * @param arg0 {@link WeavablePackage} to compare against 071 * @return int per {@link Comparable#compareTo(Object)} contract 072 */ 073 @Override 074 public int compareTo(final WeavablePackage arg0) { 075 return getTarget().getName().compareTo(arg0.getTarget().getName()); 076 } 077 078}