001/*
002 * (C) Copyright 2006-2013 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *     Bogdan Stefanescu
019 *     Benjamin JALON
020 *
021 */
022
023package org.nuxeo.common.xmap;
024
025import java.net.URL;
026import java.util.ArrayList;
027import java.util.HashMap;
028
029/**
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032public class Context extends ArrayList<Object> {
033
034    private static final long serialVersionUID = 1L;
035
036    private final HashMap<String, Object> properties = new HashMap<String, Object>();
037
038    public Class<?> loadClass(String className) throws ClassNotFoundException {
039        if (className.startsWith("[")) {
040            return Class.forName(className, true, Thread.currentThread().getContextClassLoader());
041        }
042        return Thread.currentThread().getContextClassLoader().loadClass(className);
043    }
044
045    public URL getResource(String name) {
046        return Thread.currentThread().getContextClassLoader().getResource(name);
047    }
048
049    public Object getObject() {
050        int size = size();
051        if (size > 0) {
052            return get(size - 1);
053        }
054        return null;
055    }
056
057    public Object getParent() {
058        int size = size();
059        if (size > 1) {
060            return get(size - 2);
061        }
062        return null;
063    }
064
065    public void push(Object object) {
066        add(object);
067    }
068
069    public Object pop() {
070        int size = size();
071        if (size > 0) {
072            return remove(size - 1);
073        }
074        return null;
075    }
076
077    public Object getProperty(String key) {
078        return properties.get(key);
079    }
080
081    public void setProperty(String key, Object value) {
082        properties.put(key, value);
083    }
084
085}