/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.utils;

import java.sql.Connection;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apereo.portal.jdbc.RDBMServices;

/**
 * This type is a place to centralize the portal's sql transaction code.
 */
public class SqlTransaction {
    private static final Log log = LogFactory.getLog(SqlTransaction.class);
    /** SqlTransaction constructor comment. */
    public SqlTransaction() {
        super();
    }
    /**
     * @param conn java.sql.Connection
     * @exception java.sql.SQLException
     */
    public static void begin(Connection conn) throws java.sql.SQLException {
        /*
         * Previously this method was invoked in a try-catch SQLException block.
         * Prior to 2.5.1, RDBMS.setAutoCommit didn't actually throw SQLException, and
         * as of 2.5.1 its method declaration was corrected to reflect this.
         */
        RDBMServices.setAutoCommit(conn, false);
    }
    /**
     * @param conn java.sql.Connection
     * @exception java.sql.SQLException
     */
    public static void commit(Connection conn) throws java.sql.SQLException {
        /*
         * Previously this method was invoked in a try-catch SQLException block.
         * Prior to 2.5.1, RDBMS.commit() and RDBMS.setAutoCommit didn't actually
         * throw SQLException, and as of 2.5.1 its method declaration was corrected
         * to reflect this.
         */
        RDBMServices.commit(conn);
        RDBMServices.setAutoCommit(conn, true);
    }

    protected static void logNoTransactionWarning() {
        String msg =
                "You are running the portal on a database that does not support transactions.  "
                        + "This is not a supported production environment for uPortal.  "
                        + "Sooner or later, your database will become corrupt.";
        log.warn(msg);
    }
    /**
     * @param conn java.sql.Connection
     * @exception java.sql.SQLException
     */
    public static void rollback(Connection conn) throws java.sql.SQLException {
        RDBMServices.rollback(conn);
        RDBMServices.setAutoCommit(conn, true);
    }
    /**
     * @param conn java.sql.Connection
     * @param newValue boolean
     * @exception java.sql.SQLException
     */
    public static void setAutoCommit(Connection conn, boolean newValue)
            throws java.sql.SQLException {
        /*
         * Previously this method was invoked in a try-catch SQLException block.
         * Prior to 2.5.1, RDBMS.setAutocommit() didn't actually
         * throw SQLException, and as of 2.5.1 its method declaration was corrected
         * to reflect this.
         */
        RDBMServices.setAutoCommit(conn, newValue);
    }
}