001/*
002 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     bstefanescu
016 */
017package org.nuxeo.shell;
018
019import java.util.ArrayList;
020import java.util.List;
021
022/**
023 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
024 */
025public class CompositeValueAdapter implements ValueAdapter {
026
027    protected List<ValueAdapter> adapters = new ArrayList<ValueAdapter>();
028
029    public List<ValueAdapter> getAdapters() {
030        return adapters;
031    }
032
033    public void addAdapter(ValueAdapter adapter) {
034        adapters.add(adapter);
035    }
036
037    public void removeAdapter(ValueAdapter adapter) {
038        adapters.remove(adapter);
039    }
040
041    public <T> T getValue(Shell shell, Class<T> type, String value) {
042        for (ValueAdapter adapter : adapters) {
043            T result = adapter.getValue(shell, type, value);
044            if (result != null) {
045                return result;
046            }
047        }
048        throw new ShellException("Unknown type adapter for: " + type);
049    }
050
051}