MinaNoResponseFromServerTest.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.mina;

import org.apache.camel.CamelExchangeException;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.impl.JndiRegistry;
import org.apache.mina.common.ByteBuffer;
import org.apache.mina.common.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFactory;
import org.apache.mina.filter.codec.ProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;
import org.apache.mina.filter.codec.ProtocolEncoder;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;
import org.junit.Test;

/**
 * Unit test to test what happens if remote server closes session but doesn't reply
 */
public class MinaNoResponseFromServerTest extends BaseMinaTest {

    @Test
    public void testNoResponse() throws Exception {
        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedMessageCount(0);

        try {
            template.requestBody("mina:tcp://localhost:{{port}}?sync=true&codec=#myCodec", "Hello World");
            fail("Should throw a CamelExchangeException");
        } catch (RuntimeCamelException e) {
            assertIsInstanceOf(CamelExchangeException.class, e.getCause());
            assertTrue(e.getCause().getMessage().startsWith("No response received from remote server"));
        }

        mock.assertIsSatisfied();
    }

    protected JndiRegistry createRegistry() throws Exception {
        JndiRegistry jndi = super.createRegistry();
        jndi.bind("myCodec", new MyCodec());
        return jndi;
    }

    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            public void configure() throws Exception {
                from("mina:tcp://localhost:{{port}}?sync=true&codec=#myCodec")
                        .transform(constant("Bye World")).to("mock:result");
            }
        };
    }

    private static class MyCodec implements ProtocolCodecFactory {

        public ProtocolEncoder getEncoder() throws Exception {
            return new ProtocolEncoder() {
                public void encode(IoSession ioSession, Object message, ProtocolEncoderOutput out)
                    throws Exception {
                    // close session instead of returning a reply
                    ioSession.close();
                }

                public void dispose(IoSession ioSession) throws Exception {
                    // do nothing
                }
            };

        }

        public ProtocolDecoder getDecoder() throws Exception {
            return new ProtocolDecoder() {
                public void decode(IoSession ioSession, ByteBuffer in,
                                   ProtocolDecoderOutput out) throws Exception {
                    // close session instead of returning a reply
                    ioSession.close();
                }

                public void finishDecode(IoSession ioSession, ProtocolDecoderOutput protocolDecoderOutput)
                    throws Exception {
                    // do nothing
                }

                public void dispose(IoSession ioSession) throws Exception {
                    // do nothing
                }
            };
        }
    }

}