001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.markup.loader;
018
019import java.io.IOException;
020
021import org.apache.wicket.MarkupContainer;
022import org.apache.wicket.markup.Markup;
023import org.apache.wicket.markup.MarkupResourceStream;
024import org.apache.wicket.util.resource.ResourceStreamNotFoundException;
025
026/**
027 * This is Wickets default markup loader. It uses the {@link InheritedMarkupMarkupLoader} and
028 * {@link SimpleMarkupLoader} to load the markup associated with a {@link MarkupContainer}.
029 * 
030 * @author Juergen Donnerstag
031 */
032public class DefaultMarkupLoader implements IMarkupLoader
033{
034        /**
035         * Constructor.
036         */
037        public DefaultMarkupLoader()
038        {
039        }
040
041        /**
042         * Uses {@link SimpleMarkupLoader} to load the resource(s), read it and check if markup
043         * inheritance applies. If yes, load the required other markup and merge them using
044         * {@link InheritedMarkupMarkupLoader}.
045         */
046        @Override
047        public final Markup loadMarkup(final MarkupContainer container,
048                final MarkupResourceStream markupResourceStream, final IMarkupLoader baseLoader,
049                final boolean enforceReload) throws IOException, ResourceStreamNotFoundException
050        {
051                IMarkupLoader loader = new InheritedMarkupMarkupLoader();
052                return loader.loadMarkup(container, markupResourceStream, new SimpleMarkupLoader(),
053                        enforceReload);
054        }
055}