| /* |
| * 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.sling.api.wrappers; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.sling.api.resource.ValueMap; |
| import org.apache.sling.api.wrappers.impl.ObjectConverter; |
| |
| /** |
| * <code>ValueMapDecorator</code> decorates another {@link Map} |
| * to provide a basic implementation for the additional methods |
| * of a {@link ValueMap}. |
| */ |
| public class ValueMapDecorator implements ValueMap { |
| |
| /** |
| * underlying map |
| */ |
| private final Map<String, Object> base; |
| |
| /** |
| * Creates a new wrapper around a given map. |
| * @param base wrapped object |
| */ |
| public ValueMapDecorator(Map<String, Object> base) { |
| this.base = base; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public <T> T get(String name, Class<T> type) { |
| if (base instanceof ValueMap) { |
| // shortcut if decorated map is ValueMap |
| return ((ValueMap)base).get(name, type); |
| } |
| return ObjectConverter.convert(get(name), type); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @SuppressWarnings("unchecked") |
| public <T> T get(String name, T defaultValue) { |
| if (base instanceof ValueMap) { |
| // shortcut if decorated map is ValueMap |
| return ((ValueMap)base).get(name, defaultValue); |
| } |
| T value = (T)get(name, defaultValue.getClass()); |
| if (value == null) { |
| return (T)defaultValue; |
| } |
| return value; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public int size() { |
| return base.size(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isEmpty() { |
| return base.isEmpty(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean containsKey(Object key) { |
| return base.containsKey(key); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean containsValue(Object value) { |
| return base.containsValue(value); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object get(Object key) { |
| return base.get(key); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object put(String key, Object value) { |
| return base.put(key, value); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object remove(Object key) { |
| return base.remove(key); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void putAll(Map<? extends String, ?> t) { |
| base.putAll(t); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void clear() { |
| base.clear(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Set<String> keySet() { |
| return base.keySet(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Collection<Object> values() { |
| return base.values(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Set<Entry<String, Object>> entrySet() { |
| return base.entrySet(); |
| } |
| |
| @Override |
| public String toString() { |
| return super.toString() + " : " + this.base.toString(); |
| } |
| |
| @Override |
| /** |
| * {@inheritDoc} |
| */ |
| public int hashCode() { |
| return base.hashCode(); |
| } |
| |
| @Override |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean equals(Object obj) { |
| return base.equals(obj); |
| } |
| |
| |
| } |