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.test;
018    
019    import org.apache.camel.Exchange;
020    import org.apache.camel.Message;
021    import org.apache.camel.impl.DefaultExchange;
022    
023    /**
024     * A base class for a test which requires a {@link org.apache.camel.CamelContext} and
025     * a populated {@link Exchange}
026     *
027     * @version 
028     */
029    public abstract class ExchangeTestSupport extends CamelTestSupport {
030        protected Exchange exchange;
031    
032        /**
033         * A factory method to create an Exchange implementation
034         */
035        protected Exchange createExchange() {
036            return new DefaultExchange(context);
037        }
038    
039        /**
040         * A strategy method to populate an exchange with some example values for use
041         * by language plugins
042         */
043        protected void populateExchange(Exchange exchange) {
044            Message in = exchange.getIn();
045            in.setHeader("foo", "abc");
046            in.setHeader("bar", 123);
047            in.setBody("<hello id='m123'>world!</hello>");
048        }
049    
050        @Override
051        protected void setUp() throws Exception {
052            super.setUp();
053            exchange = createExchange();
054            assertNotNull("No exchange created!", exchange);
055            populateExchange(exchange);
056        }
057    }