com.cgdecker.guice.jdbc.Hsqldb.java Source code

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Here is the source code for com.cgdecker.guice.jdbc.Hsqldb.java

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/*
 * Copyright 2011 Colin Decker
 *
 * 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.
 */

package com.cgdecker.guice.jdbc;

import com.google.inject.AbstractModule;
import com.google.inject.Module;
import org.apache.commons.dbcp.BasicDataSource;
import org.hsqldb.jdbc.JDBCDataSource;
import org.hsqldb.jdbcDriver;
import org.hsqldb.server.Server;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import javax.sql.DataSource;

/**
 * @author cgdecker@gmail.com (Colin Decker)
 */
class Hsqldb {
    public static Module getModule() {
        return new AbstractModule() {
            @Override
            protected void configure() {
                bind(DataSource.class).toInstance(getDataSource());
                install(new JdbcPersistModule());
            }
        };
    }

    public static DataSource getDataSource() {
        BasicDataSource result = new BasicDataSource();
        result.setDriverClassName(jdbcDriver.class.getName());
        result.setUrl("jdbc:hsqldb:mem:.");
        result.setUsername("sa");
        result.setPassword("");
        setUpDatabase(result);
        return result;
    }

    private static void setUpDatabase(DataSource dataSource) {
        Connection conn = null;
        try {
            conn = dataSource.getConnection();
            PreparedStatement pS = conn.prepareStatement("SET DATABASE TRANSACTION CONTROL MVCC");
            pS.executeUpdate();
            pS.close();

            pS = conn.prepareStatement("DROP TABLE foo IF EXISTS");
            pS.executeUpdate();
            pS.close();

            pS = conn.prepareStatement("CREATE TABLE foo ( id INTEGER, name VARCHAR(100) )");
            pS.executeUpdate();
            pS.close();
        } catch (SQLException e) {
            throw new RuntimeException(e);
        } finally {
            if (conn != null) {
                try {
                    conn.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}