[Babeldoc-devel] babeldoc/modules/sql/src/com/babeldoc/sql/journal SqlServerJournal.java,NONE,1.1

[David G. <dgl...@us...>]

Update of /cvsroot/babeldoc/babeldoc/modules/sql/src/com/babeldoc/sql/journal
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv22496/babeldoc/modules/sql/src/com/babeldoc/sql/journal

Added Files:
	SqlServerJournal.java 
Log Message:
Added journal support for Sql Server

--- NEW FILE: SqlServerJournal.java ---
/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact ap...@ap....
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * Portions of this software are based upon public domain software
 * originally written at the National Center for Supercomputing Applications,
 * University of Illinois, Urbana-Champaign.
 * ====================================================================
 *
 * Babeldoc:  The Universal Document Processor
 *
 * $Header: /cvsroot/babeldoc/babeldoc/modules/sql/src/com/babeldoc/sql/journal/SqlServerJournal.java,v 1.1 2004/09/03 16:57:04 dglick02 Exp $
 * $DateTime$
 * $Author: dglick02 $
 *
 */
package com.babeldoc.sql.journal;

import com.babeldoc.core.I18n;
import com.babeldoc.core.LogService;
import com.babeldoc.core.pipeline.PipelineDocument;
import com.babeldoc.core.journal.query.JournalQuery;

import com.babeldoc.sql.util.SqlQueryManager;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;

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


/**
 *
 * Copied from MySqlServer.java.  Rather then simply extend MySqlServer, it makes sense
 * to keep the database-specific classes totally separate so that one can change
 * MySqlServer without affecting this module, which could otherwise break.  Propagating
 * bug fixes, you say?  This is based on Bruce McDonald code, man; there are no bugs. 
 * @author David Glick
 * @version 1.0
 */
public class SqlServerJournal extends GenericSqlJournal {
  public static final String DELTA_MAKEROW = "journalAddBlankDataRow-sqlserver";

  /**
   * getTicketsProcessQueryString concoct the query string from the bits and
   * pieces.  Calls back to the getTicketsProcess...
   *
   * @param jQuery
   *
   * @return
   */
  protected StringBuffer getTicketsProcessQueryString(JournalQuery jQuery) {
    boolean whereAdded;

    StringBuffer query = new StringBuffer(SqlQueryManager.getSqlQuery(
          LOG_QUERY_TICKETS));

    whereAdded = getTicketsProcessDates(jQuery.getStartDate(),
        jQuery.getEndDate(), query);
    whereAdded = getTicketsProcessJournalOperations(whereAdded, query,
        jQuery.getJournalOperations());
    getTicketsProcessQueryOptions(jQuery.getQueryOptions(), query);

    // Limit stuff
    if (jQuery.getStartIndex() > 0) {
      query.append(" limit " + jQuery.getStartIndex() + ", " +
        jQuery.getNumResults());

      // HACK ALERT - need to do this to stop the parent skipping
      // on the result set.
      jQuery.setStartIndex(0);
    }

    return query;
  }

  /**
   * writeDelta - Write a document to the rdbms.
   *
   * @param con the connection
   * @param id the log id
   * @param step the log step
   * @param doc DOCUMENT ME!
   *
   * @throws SQLException DOCUMENT ME!
   */
  protected void writeDelta(Connection con, long id, long step,
    PipelineDocument doc) throws SQLException {
    String insertStmt = SqlQueryManager.getSqlQuery(DELTA_MAKEROW);
    PreparedStatement pstmt = null;
    ResultSet rset = null;
    ByteArrayOutputStream baos = null;

    try {
      // Write the document object to an array of bytes
      baos = new ByteArrayOutputStream();

      ObjectOutputStream oos = new ObjectOutputStream(baos);
      oos.writeObject(doc);
      oos.flush();

      byte[] docData = baos.toByteArray();

      // Now write the row
      pstmt = con.prepareStatement(insertStmt);
      pstmt.setLong(1, id);
      pstmt.setLong(2, step);
      pstmt.setBytes(3, docData);
      pstmt.execute();

      writeExtraData(con, id, step, doc);
    } catch (Exception e) {
      throw new SQLException(e.toString());
    } finally {
      try {
        if (rset != null) {
          rset.close();
        }

        if (pstmt != null) {
          pstmt.close();
        }

        if (baos != null) {
          baos.close();
        }
      } catch (Exception e) {
        LogService.getInstance().logError(I18n.get("014003"), e);
      }
    }
  }
}