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.tapestry.script;
016
017import java.util.Map;
018
019import org.apache.hivemind.Location;
020import org.apache.hivemind.Resource;
021import org.apache.tapestry.IRequestCycle;
022import org.apache.tapestry.IScript;
023import org.apache.tapestry.IScriptProcessor;
024import org.apache.tapestry.coerce.ValueConverter;
025import org.apache.tapestry.services.ExpressionEvaluator;
026
027/**
028 * A top level container for a number of {@link IScriptToken script tokens}.
029 * 
030 * @author Howard Lewis Ship
031 * @since 0.2.9
032 */
033
034public class ParsedScript extends AbstractToken implements IScript
035{
036    private Resource _scriptResource;
037
038    private ExpressionEvaluator _evaluator;
039
040    /** @since 4.0 */
041
042    private ValueConverter _valueConverter;
043
044    public ParsedScript(ExpressionEvaluator evaluator, ValueConverter valueConverter,
045            Location location)
046    {
047        super(location);
048
049        _evaluator = evaluator;
050        _valueConverter = valueConverter;
051        _scriptResource = location.getResource();
052    }
053
054    public Resource getScriptResource()
055    {
056        return _scriptResource;
057    }
058
059    /**
060     * Creates the {@link ScriptSessionImpl}and invokes
061     * {@link org.apache.tapestry.script.AbstractToken#writeChildren(java.lang.StringBuffer, org.apache.tapestry.script.ScriptSession)}.
062     */
063    public void execute(IRequestCycle cycle, IScriptProcessor processor, Map symbols)
064    {
065        ScriptSession session = new ScriptSessionImpl(_scriptResource, cycle, processor,
066                _evaluator, _valueConverter, symbols);
067
068        writeChildren(null, session);
069    }
070
071    /**
072     * Does nothing; never invoked.
073     */
074    public void write(StringBuffer buffer, ScriptSession session)
075    {
076
077    }
078
079}