/*  * Copyright 2004-2005 OpenSymphony  *  * 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. *  *//* * Previously Copyright (c) 2001-2004 James House */package org.quartz.impl.jdbcjobstore.oracle.weblogic;import org.apache.commons.logging.Log;import org.quartz.impl.jdbcjobstore.oracle.OracleDelegate;import java.lang.reflect.Method;import java.sql.Blob;import java.sql.ResultSet;import java.sql.SQLException;/** * Handle Blobs correctly when Oracle is being used inside of Weblogic 8.1, * as discussed at: http://edocs.bea.com/wls/docs81/jdbc/thirdparty.html#1043705 *   * @see org.quartz.impl.jdbcjobstore.WebLogicDelegate * @author James House * @author Igor Fedulov <a href="mailto:igor@fedulov.com">igor@fedulov.com</a> */public class WebLogicOracleDelegate extends OracleDelegate {    /**     * <p>     * Create new WebLogicOracleDelegate instance.     * </p>     *      * @param logger     *            the logger to use during execution     * @param tablePrefix     *            the prefix of all table names     */    public WebLogicOracleDelegate(Log logger, String tablePrefix,            String instanceId) {        super(logger, tablePrefix, instanceId);    }    /**     * <p>     * Create new WebLogicOracleDelegate instance.     * </p>     *      * @param logger     *            the logger to use during execution     * @param tablePrefix     *            the prefix of all table names     * @param useProperties     *            use java.util.Properties for storage     */    public WebLogicOracleDelegate(Log logger, String tablePrefix,            String instanceId, Boolean useProperties) {        super(logger, tablePrefix, instanceId, useProperties);    }    /**     * Check for the Weblogic Blob wrapper, and handle accordingly...     */    protected Blob writeDataToBlob(ResultSet rs, int column, byte[] data) throws SQLException {        Blob blob = rs.getBlob(column);                if(blob == null)             throw new SQLException("Driver's Blob representation is null!");                // handle thin driver's blob        if (blob instanceof weblogic.jdbc.vendor.oracle.OracleThinBlob) {             ((weblogic.jdbc.vendor.oracle.OracleThinBlob) blob).putBytes(1, data);            return blob;        }        // (more slowly) handle blob for wrappers of other variations of drivers...        else if(blob.getClass().getPackage().getName().startsWith("weblogic.")) {             try {                // try to find putBytes method...                Method m = blob.getClass().getMethod("putBytes", new Class[] {long.class, byte[].class});                m.invoke(blob, new Object[] {new Long(1), data});            } catch (Exception e) {                throw new SQLException("Unable to find putBytes(long,byte[]) method on blob: " + e);            }            return blob;        }        else {            return super.writeDataToBlob(rs, column, data);        }    }}