001/*
002 * (C) Copyright 2006-2010 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 *     bstefanescu
018 */
019package org.nuxeo.shell;
020
021import java.util.ArrayList;
022import java.util.List;
023
024/**
025 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
026 */
027public class CompositeValueAdapter implements ValueAdapter {
028
029    protected List<ValueAdapter> adapters = new ArrayList<ValueAdapter>();
030
031    public List<ValueAdapter> getAdapters() {
032        return adapters;
033    }
034
035    public void addAdapter(ValueAdapter adapter) {
036        adapters.add(adapter);
037    }
038
039    public void removeAdapter(ValueAdapter adapter) {
040        adapters.remove(adapter);
041    }
042
043    public <T> T getValue(Shell shell, Class<T> type, String value) {
044        for (ValueAdapter adapter : adapters) {
045            T result = adapter.getValue(shell, type, value);
046            if (result != null) {
047                return result;
048            }
049        }
050        throw new ShellException("Unknown type adapter for: " + type);
051    }
052
053}