LMS-1622 SimpleDatabaseConfigurationContext moved to dbmigration

SVN: 16913

openbis/source/java/ch/systemsx/cisd/openbis/plugin/query/shared/SimpleDatabaseConfigurationContext.java

-/*
- * Copyright 2007 ETH Zuerich, CISD
- *
- * 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 ch.systemsx.cisd.openbis.plugin.query.shared;
-
-import java.util.Properties;
-
-import javax.sql.DataSource;
-
-import org.apache.commons.dbcp.BasicDataSource;
-import org.springframework.beans.factory.DisposableBean;
-
-import ch.systemsx.cisd.base.exceptions.CheckedExceptionTunnel;
-import ch.systemsx.cisd.common.utilities.PropertyUtils;
-import ch.systemsx.cisd.dbmigration.BasicDataSourceFactory;
-import ch.systemsx.cisd.dbmigration.DatabaseConfigurationContext;
-import ch.systemsx.cisd.dbmigration.IDataSourceFactory;
-
-/**
- * Configuration context for database operations.
- * <p>
- * It is a simple counterpart of {@link DatabaseConfigurationContext} that uses only a few basic
- * JDBC configuration parameters:
- * <li>driver class name
- * <li>url
- * <li>username
- * <li>password
- * 
- * @author Piotr Buczek
- */
-public class SimpleDatabaseConfigurationContext implements DisposableBean
-{
-
-    static final String DRIVER_KEY = "database-driver";
-
-    static final String URL_KEY = "database-url";
-
-    static final String USER_KEY = "database-username";
-
-    static final String PASSWORD_KEY = "database-password";
-
-    private IDataSourceFactory dataSourceFactory = new BasicDataSourceFactory();
-
-    private DataSource dataSource;
-
-    private final String driverClassName;
-
-    private final String url;
-
-    private final String username;
-
-    private final String password;
-
-    public SimpleDatabaseConfigurationContext(Properties properties)
-    {
-        this.driverClassName = PropertyUtils.getMandatoryProperty(properties, DRIVER_KEY);
-        this.url = PropertyUtils.getMandatoryProperty(properties, URL_KEY);
-        this.username =
-                PropertyUtils.getProperty(properties, USER_KEY, System.getProperty("user.name")
-                        .toLowerCase());
-        this.password = PropertyUtils.getProperty(properties, PASSWORD_KEY);
-    }
-
-    /**
-     * Returns the {@link DataSource} of this data configuration.
-     */
-    public final DataSource getDataSource()
-    {
-        if (dataSource == null)
-        {
-            dataSource = createDataSource();
-        }
-        return dataSource;
-    }
-
-    /**
-     * Creates a <code>DataSource</code> for this context.
-     */
-    private final DataSource createDataSource()
-    {
-        return dataSourceFactory.createDataSource(driverClassName, url, username, password);
-    }
-
-    /** Closes opened database connections. */
-    public final void closeConnections()
-    {
-        closeConnection(dataSource);
-        dataSource = null;
-    }
-
-    //
-    // DisposableBean
-    //
-
-    public final void destroy() throws Exception
-    {
-        closeConnections();
-    }
-
-    //
-
-    private final static void closeConnection(final DataSource dataSource)
-    {
-        if (dataSource != null)
-        {
-            try
-            {
-                if (dataSource instanceof BasicDataSource)
-                {
-                    ((BasicDataSource) dataSource).close();
-                }
-                if (dataSource instanceof DisposableBean)
-                {
-                    ((DisposableBean) dataSource).destroy();
-                }
-            } catch (final Exception ex)
-            {
-                throw CheckedExceptionTunnel.wrapIfNecessary(ex);
-            }
-        }
-    }
-
-}