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    
015    package org.apache.tapestry5.internal.services;
016    
017    import org.apache.tapestry5.MarkupWriter;
018    import org.apache.tapestry5.dom.Document;
019    import org.apache.tapestry5.internal.structure.Page;
020    import org.apache.tapestry5.services.MarkupWriterFactory;
021    import org.apache.tapestry5.services.PageDocumentGenerator;
022    
023    public 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    }