001    // Copyright 2008 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.renderers;
016    
017    import org.apache.tapestry5.MarkupWriter;
018    import org.apache.tapestry5.ioc.annotations.Primary;
019    import org.apache.tapestry5.services.ObjectRenderer;
020    
021    import java.util.Arrays;
022    import java.util.List;
023    
024    /**
025     * Renders an Object[] array as an unordered list.
026     */
027    public class ObjectArrayRenderer implements ObjectRenderer<Object[]>
028    {
029        private final ObjectRenderer masterRenderer;
030    
031        public ObjectArrayRenderer(@Primary ObjectRenderer masterRenderer)
032        {
033            this.masterRenderer = masterRenderer;
034        }
035    
036        public void render(Object[] array, MarkupWriter writer)
037        {
038            if (array.length == 0)
039            {
040                writer.element("em");
041                writer.write("empty array");
042                writer.end();
043                return;
044            }
045    
046            List list = Arrays.asList(array);
047    
048            masterRenderer.render(list, writer);
049        }
050    }