    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    }