Package org.jooq.academy.section4

Source Code of org.jooq.academy.section4.Example_4_4_ExecuteListener

/**
* Copyright (c) 2009-2013, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
*   either ASL or jOOQ License.
* - If you're using this work with at least one commercial database, you must
*   choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* Licensed 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq.academy.section4;

import static org.jooq.academy.tools.Tools.connection;
import static org.jooq.example.db.h2.Tables.AUTHOR;

import org.jooq.ExecuteContext;
import org.jooq.ExecuteListener;
import org.jooq.SQLDialect;
import org.jooq.academy.tools.Tools;
import org.jooq.impl.DSL;
import org.jooq.impl.DefaultConfiguration;
import org.jooq.impl.DefaultConnectionProvider;
import org.jooq.impl.DefaultExecuteListener;
import org.jooq.impl.DefaultExecuteListenerProvider;

import org.junit.Test;

@SuppressWarnings("serial")
public class Example_4_4_ExecuteListener {

    @Test
    public void run() {
        Tools.title("Displaying execution time using a custom ExecuteListener");

        ExecuteListener listener = new DefaultExecuteListener() {

            @Override
            public void start(ExecuteContext ctx) {

                // Register the start time to the current context
                ctx.data("time", System.nanoTime());
            }

            @Override
            public void end(ExecuteContext ctx) {

                // Extract the start time from the current context
                Long time = (Long) ctx.data("time");

                System.out.println("Execution time : " + ((System.nanoTime() - time) / 1000 / 1000.0) + "ms. Query : " + ctx.sql());
            }
        };

        DSL.using(new DefaultConfiguration()
               .set(SQLDialect.H2)
               .set(new DefaultConnectionProvider(connection()))
               .set(new DefaultExecuteListenerProvider(listener))
           )
           .select(AUTHOR.ID)
           .from(AUTHOR)
           .fetch();
    }
}
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