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.feedback;
018
019import org.apache.wicket.Component;
020import org.apache.wicket.MarkupContainer;
021import org.apache.wicket.util.lang.Args;
022import org.apache.wicket.util.lang.Objects;
023
024/**
025 * Filter for child-of relationship
026 * 
027 * @author Jonathan Locke
028 * @author Johan Compagner
029 */
030public class ContainerFeedbackMessageFilter implements IFeedbackMessageFilter
031{
032        private static final long serialVersionUID = 1L;
033
034        private final MarkupContainer container;
035
036        /**
037         * Constructor
038         * 
039         * @param container
040         *            The container that message reporters must be a child of
041         */
042        public ContainerFeedbackMessageFilter(MarkupContainer container)
043        {
044                this.container = Args.notNull(container, "container");
045        }
046
047        @Override
048        public boolean accept(FeedbackMessage message)
049        {
050                final Component reporter = message.getReporter();
051
052                return reporter != null && 
053                       (container.contains(reporter, true) || Objects.equal(container, reporter));
054        }
055}