HBaseIdempotentRepositoryTest.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.hbase.processor.idempotent;

import org.apache.camel.CamelContext;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.hbase.CamelHBaseTestSupport;
import org.apache.camel.component.hbase.HBaseHelper;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.spi.IdempotentRepository;
import org.apache.hadoop.hbase.TableExistsException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class HBaseIdempotentRepositoryTest extends CamelHBaseTestSupport {

    IdempotentRepository<Object> repository;

    private String key01 = "123";
    private String key02 = "456";

    @Before
    public void setUp() throws Exception {
        if (systemReady) {
            try {
                hbaseUtil.createTable(HBaseHelper.getHBaseFieldAsBytes(PERSON_TABLE), HBaseHelper.getHBaseFieldAsBytes(INFO_FAMILY));
            } catch (TableExistsException ex) {
                //Ignore if table exists
            }
            this.repository = new HBaseIdempotentRepository(hbaseUtil.getConfiguration(), PERSON_TABLE, INFO_FAMILY, "mycolumn");
            super.setUp();
        }
    }

    @After
    public void tearDown() throws Exception {
        if (systemReady) {
            hbaseUtil.deleteTable(HBaseHelper.getHBaseFieldAsBytes(PERSON_TABLE));
            super.setUp();
        }
    }

    @Test
    public void testAdd() throws Exception {
        if (systemReady) {
            // add first key
            assertTrue(repository.add(key01));
            assertTrue(repository.contains(key01));

            // try to add an other one
            assertTrue(repository.add(key02));
            assertTrue(repository.contains(key02));

            // try to add the first key again
            assertFalse(repository.add(key01));
        }
    }

    @Test
    public void testContains() throws Exception {
        if (systemReady) {
            assertFalse(repository.contains(key01));

            // add key and check again
            assertTrue(repository.add(key01));
            assertTrue(repository.contains(key01));
        }
    }

    @Test
    public void testRemove() throws Exception {
        if (systemReady) {
            // add key to remove
            assertTrue(repository.add(key01));
            assertTrue(repository.contains(key01));
            // assertEquals(1, dataSet.size());

            // remove key
            assertTrue(repository.remove(key01));
            //assertEquals(0, dataSet.size());

            // try to remove a key that isn't there
            assertFalse(repository.remove(key02));
        }
    }
    
    @Test
    public void testClear() throws Exception {
        if (systemReady) {
            // add key to remove
            assertTrue(repository.add(key01));
            assertTrue(repository.add(key02));
            assertTrue(repository.contains(key01));
            assertTrue(repository.contains(key02));

            // remove key
            repository.clear();

            assertFalse(repository.contains(key01));
            assertFalse(repository.contains(key02));
        }
    }

    @Test
    public void testConfirm() throws Exception {
        if (systemReady) {
            // it always return true
            assertTrue(repository.confirm(key01));
        }
    }

    @Test
    public void testRepositoryInRoute() throws Exception {
        if (systemReady) {
            MockEndpoint mock = (MockEndpoint) context.getEndpoint("mock:out");
            mock.expectedBodiesReceived("a", "b");
            // c is a duplicate

            // send 3 message with one duplicated key (key01)
            template.sendBodyAndHeader("direct:in", "a", "messageId", key01);
            template.sendBodyAndHeader("direct:in", "b", "messageId", key02);
            template.sendBodyAndHeader("direct:in", "c", "messageId", key01);

            assertMockEndpointsSatisfied();
        }
    }

    @Override
    public CamelContext createCamelContext() throws Exception {
        return new DefaultCamelContext(createRegistry());
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("direct:in")
                    .idempotentConsumer(header("messageId"), repository)
                    .to("mock:out");
            }
        };
    }
}