io.vertigo.dynamo.plugins.database.connection.c3p0.C3p0ConnectionProviderPlugin Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of vertigo-dynamo-impl Show documentation
There is a newer version: 2.1.0
/**
 * vertigo - simple java starter
 *
 * Copyright (C) 2013, KleeGroup, [email protected] (http://www.kleegroup.com)
 * KleeGroup, Centre d'affaire la Boursidiere - BP 159 - 92357 Le Plessis Robinson Cedex - France
 *
 * 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 io.vertigo.dynamo.plugins.database.connection.c3p0;

import io.vertigo.dynamo.database.SqlDataBaseManager;
import io.vertigo.dynamo.database.connection.SqlConnection;
import io.vertigo.dynamo.database.vendor.SqlDataBase;
import io.vertigo.dynamo.plugins.database.connection.AbstractSqlConnectionProviderPlugin;
import io.vertigo.lang.Assertion;
import io.vertigo.lang.Option;
import io.vertigo.lang.WrappedException;
import io.vertigo.util.ClassUtil;

import java.beans.PropertyVetoException;
import java.sql.SQLException;

import javax.inject.Inject;
import javax.inject.Named;
import javax.sql.DataSource;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import com.mchange.v2.c3p0.PooledDataSource;

/**
 * If there is no datasource, you have to use a simple connection provider.
 * 
 * @see io.vertigo.dynamo.plugins.database.connection.datasource.DataSourceConnectionProviderPlugin Utiliser une DataSource
 */
public final class C3p0ConnectionProviderPlugin extends AbstractSqlConnectionProviderPlugin {
	private final DataSource pooledDataSource;

	/**
	 * Constructor.
	 * @param name the name of the connectionProvider
	 * @param dataBaseClass the type of database
	 * @param jdbcDriver the class of the jdbc driver
	 * @param jdbcUrl the jdbc url
	 */
	@Inject
	public C3p0ConnectionProviderPlugin(
			@Named("name") final Option name,
			@Named("dataBaseClass") final String dataBaseClass,
			@Named("jdbcDriver") final String jdbcDriver,
			@Named("jdbcUrl") final String jdbcUrl) {
		super(name.getOrElse(SqlDataBaseManager.MAIN_CONNECTION_PROVIDER_NAME), ClassUtil.newInstance(dataBaseClass, SqlDataBase.class));
		Assertion.checkNotNull(jdbcUrl);
		Assertion.checkNotNull(jdbcDriver);
		//-----
		pooledDataSource = createPooledDataSource(jdbcDriver, jdbcUrl);
	}

	private static PooledDataSource createPooledDataSource(final String jdbcDriver, final String jdbcUrl) {
		final ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
		try {
			//loads the jdbc driver
			comboPooledDataSource.setDriverClass(jdbcDriver);
		} catch (final PropertyVetoException e) {
			throw WrappedException.wrapIfNeeded(e, "Can't defined JdbcDriver {0}", jdbcDriver);
		}
		comboPooledDataSource.setJdbcUrl(jdbcUrl);
		//c3p0 can work with defaults
		return comboPooledDataSource;
	}

	/** {@inheritDoc} */
	@Override
	public SqlConnection obtainConnection() throws SQLException {
		return new SqlConnection(pooledDataSource.getConnection(), getDataBase(), true);
	}
}