HL7MLLPNettyCodecBoundaryTest.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.camel.component.hl7;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import ca.uhn.hl7v2.model.v25.message.MDM_T02;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.impl.JndiRegistry;
import org.apache.camel.util.IOHelper;
import org.junit.Test;

/**
 * Test for situation where the two end bytes are split across different byte
 * buffers.
 */
public class HL7MLLPNettyCodecBoundaryTest extends HL7TestSupport {

    protected JndiRegistry createRegistry() throws Exception {
        JndiRegistry jndi = super.createRegistry();

        // START SNIPPET: e1
        HL7MLLPNettyDecoderFactory decoder = new HL7MLLPNettyDecoderFactory();
        decoder.setCharset("iso-8859-1");
        jndi.bind("hl7decoder", decoder);

        HL7MLLPNettyEncoderFactory encoder = new HL7MLLPNettyEncoderFactory();
        decoder.setCharset("iso-8859-1");
        jndi.bind("hl7encoder", encoder);
        // END SNIPPET: e1

        return jndi;
    }

    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            public void configure() throws Exception {
                from("netty4:tcp://127.0.0.1:" + getPort() + "?sync=true&decoder=#hl7decoder&encoder=#hl7encoder").process(new Processor() {
                    public void process(Exchange exchange) throws Exception {
                        // check presence of correct message type
                        exchange.getIn().getBody(MDM_T02.class);
                    }
                }).to("mock:result");
            }
        };
    }

    @Test 
    public void testSendHL7Message() throws Exception {
        BufferedReader in = IOHelper.buffered(new InputStreamReader(getClass().getResourceAsStream("/mdm_t02-1022.txt")));
        String line = "";
        String message = "";
        while (line != null) {
            if ((line = in.readLine()) != null) {
                message += line + "\r";
            }
        }
        message = message.substring(0, message.length() - 1);
        assertEquals(1022, message.length());
        MockEndpoint mockEndpoint = getMockEndpoint("mock:result");
        mockEndpoint.expectedMessageCount(1);
        template.requestBody("netty4:tcp://127.0.0.1:" + getPort() + "?sync=true&decoder=#hl7decoder&encoder=#hl7encoder", message);
        mockEndpoint.assertIsSatisfied();
    }

}