components/camel-sql/src/test/java/org/apache/camel/component/sql/SqlDataSourceRefTest.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.sql;

import java.util.List;
import java.util.Map;


import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.impl.JndiRegistry;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.After;
import org.junit.Test;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabase;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;

/**
 * @version 
 */
public class SqlDataSourceRefTest extends CamelTestSupport {
    
    private EmbeddedDatabase db;

    @Override
    protected JndiRegistry createRegistry() throws Exception {
        JndiRegistry jndi = super.createRegistry();
        
        // START SNIPPET: e2
        // this is the database we create with some initial data for our unit test
        db = new EmbeddedDatabaseBuilder()
            .setType(EmbeddedDatabaseType.DERBY).addScript("sql/createAndPopulateDatabase.sql").build();
        // END SNIPPET: e2
        
        jndi.bind("jdbc/myDataSource", db);
        
        return jndi;
    }

    @Test
    public void testSimpleBody() throws Exception {
        // START SNIPPET: e3
        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedMessageCount(1);

        // send the query to direct that will route it to the sql where we will execute the query
        // and bind the parameters with the data from the body. The body only contains one value
        // in this case (XXX) but if we should use multi values then the body will be iterated
        // so we could supply a List<String> instead containing each binding value.
        template.sendBody("direct:simple", "XXX");

        mock.assertIsSatisfied();

        // the result is a List
        List<?> received = assertIsInstanceOf(List.class, mock.getReceivedExchanges().get(0).getIn().getBody());

        // and each row in the list is a Map
        Map<?, ?> row = assertIsInstanceOf(Map.class, received.get(0));

        // and we should be able the get the project from the map that should be Linux
        assertEquals("Linux", row.get("PROJECT"));
        // END SNIPPET: e3
    }

    @After
    public void tearDown() throws Exception {
        super.tearDown();
        
        db.shutdown();
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            public void configure() {
                // START SNIPPET: e1
                from("direct:simple")
                    .to("sql:select * from projects where license = # order by id?dataSource=#jdbc/myDataSource")
                    .to("mock:result");
                // END SNIPPET: e1
            }
        };
    }
}