001// Copyright 2008, 2010 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.tapestry5.internal.services;
016
017import org.apache.tapestry5.MarkupWriter;
018import org.apache.tapestry5.dom.Document;
019import org.apache.tapestry5.internal.structure.Page;
020import org.apache.tapestry5.services.MarkupWriterFactory;
021import org.apache.tapestry5.services.PageDocumentGenerator;
022
023public class PageDocumentGeneratorImpl implements PageDocumentGenerator
024{
025    private final RequestPageCache pageCache;
026
027    private final PageMarkupRenderer markupRenderer;
028
029    private final MarkupWriterFactory markupWriterFactory;
030
031    public PageDocumentGeneratorImpl(RequestPageCache pageCache, PageMarkupRenderer markupRenderer,
032            MarkupWriterFactory markupWriterFactory)
033    {
034        this.markupRenderer = markupRenderer;
035        this.markupWriterFactory = markupWriterFactory;
036        this.pageCache = pageCache;
037    }
038
039    public Document render(String logicalPageName)
040    {
041        Page page = pageCache.get(logicalPageName);
042
043        MarkupWriter writer = markupWriterFactory.newMarkupWriter(logicalPageName);
044
045        markupRenderer.renderPageMarkup(page, writer);
046
047        return writer.getDocument();
048    }
049}