001// Copyright 2004, 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.hivemind.service.impl;
016
017import java.util.HashMap;
018import java.util.List;
019import java.util.Map;
020
021import org.apache.hivemind.SymbolSource;
022import org.apache.hivemind.impl.BaseLocatable;
023
024/**
025 * Implementation of {@link org.apache.hivemind.SymbolSource} driven off of an extension point.
026 * 
027 * @author Howard Lewis Ship
028 */
029public class DefaultsSymbolSource extends BaseLocatable implements SymbolSource
030{
031    private List _defaults;
032
033    private Map _symbols = new HashMap();
034
035    public String valueForSymbol(String name)
036    {
037        return (String) _symbols.get(name);
038    }
039
040    public void initializeService()
041    {
042        int count = _defaults.size();
043        for (int i = 0; i < count; i++)
044        {
045            FactoryDefault fd = (FactoryDefault) _defaults.get(i);
046
047            String symbol = fd.getSymbol();
048            String value = fd.getValue();
049
050            _symbols.put(symbol, value);
051        }
052    }
053
054    public void setDefaults(List list)
055    {
056        _defaults = list;
057    }
058}