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.example.client;
018    
019    import org.apache.camel.ProducerTemplate;
020    import org.apache.camel.component.mock.MockEndpoint;
021    import org.springframework.context.ApplicationContext;
022    import org.springframework.context.support.ClassPathXmlApplicationContext;
023    
024    /**
025     * Client that uses the {@link ProducerTemplate} to easily exchange messages with the Server.
026     * <p/>
027     * Requires that the CamelServer is already running
028     */
029    public final class CamelClient {
030    
031        private static final int SIZE = 100;
032    
033        private CamelClient() {
034            // Helper class
035        }
036    
037        public static void main(final String[] args) throws Exception {
038            System.out.println("Notice this client requires that the CamelServer is already running!");
039    
040            ApplicationContext context = new ClassPathXmlApplicationContext("META-INF/spring/camel-client.xml");
041    
042            // get the camel template for Spring template style sending of messages (= producer)
043            final ProducerTemplate producer = (ProducerTemplate) context.getBean("camelTemplate");
044    
045            final MockEndpoint mock = (MockEndpoint) context.getBean("result");
046            mock.expectedMessageCount(SIZE);
047            // expect no duplicate bodies
048            mock.expectsNoDuplicates().body();
049            // and all replies should start with this text
050            mock.allMessages().body().startsWith("Bye Message");
051    
052            // now send a lot of messages
053            System.out.println("Sending ...");
054            for (int i = 0; i < SIZE; i++) {
055                producer.sendBody("direct:start", "Message " + i);
056            }
057            System.out.println("... Send done");
058    
059            System.out.println("Asserting ...");
060            mock.assertIsSatisfied();
061            System.out.println("... Asserting done");
062    
063            System.exit(0);
064        }
065    
066    }