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     */
017    package org.apache.camel.component.xmpp;
018    
019    import java.util.Map;
020    import java.util.Set;
021    
022    import org.apache.camel.Exchange;
023    
024    import org.jivesoftware.smack.packet.Message;
025    
026    /**
027     * A Strategy used to convert between a Camel {@XmppExchange} and {@XmppMessage} to and from a
028     * XMPP {@link Message}
029     *
030     * @version $Revision: 563665 $
031     */
032    public class XmppBinding {
033        /**
034         * Populates the given XMPP message from the inbound exchange
035         */
036        public void populateXmppMessage(Message message, Exchange exchange) {
037            message.setBody(exchange.getIn().getBody(String.class));
038    
039            Set<Map.Entry<String, Object>> entries = exchange.getIn().getHeaders().entrySet();
040            for (Map.Entry<String, Object> entry : entries) {
041                String name = entry.getKey();
042                Object value = entry.getValue();
043                if (shouldOutputHeader(exchange, name, value)) {
044                    message.setProperty(name, value);
045                }
046            }
047            String id = exchange.getExchangeId();
048            if (id != null) {
049                message.setProperty("exchangeId", id);
050            }
051        }
052    
053        /**
054         * Extracts the body from the XMPP message
055         *
056         * @param exchange
057         * @param message
058         */
059        public Object extractBodyFromXmpp(XmppExchange exchange, Message message) {
060            return message.getBody();
061        }
062    
063        /**
064         * Strategy to allow filtering of headers which are put on the XMPP message
065         */
066        protected boolean shouldOutputHeader(Exchange exchange, String headerName, Object headerValue) {
067            return true;
068        }
069    }