/*
* Copyright (C) 2003-2011 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.jcr.impl.storage.jdbc.optimisation.db;
import org.exoplatform.services.jcr.impl.storage.jdbc.JDBCDataContainerConfig;
import org.exoplatform.services.jcr.util.IdGenerator;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* Created by The eXo Platform SAS.
*
* <br>Date:
*
* @author <a href="karpenko.sergiy@gmail.com">Karpenko Sergiy</a>
* @version $Id: SybaseSingleDBJDBCConnection.java 111 4.05.2011 serg $
*/
public class SybaseSingleDbJDBCConnection extends SingleDbJDBCConnection
{
/**
* SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE
*/
protected String SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE;
protected String SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE_B;
/**
* DELETE_TEMPORARY_TABLE_A
*/
protected String DELETE_TEMPORARY_TABLE_A;
/**
* DELETE_TEMPORARY_TABLE_B
*/
protected String DELETE_TEMPORARY_TABLE_B;
protected PreparedStatement selectLimitOffsetNodesIntoTemporaryTable;
protected PreparedStatement selectLimitOffsetNodesIntoTemporaryTableB;
protected PreparedStatement deleteTemporaryTableA;
protected PreparedStatement deleteTemporaryTableB;
/**
* @param dbConnection
* JDBC connection, should be opened before
* @param readOnly
* boolean if true the dbConnection was marked as READ-ONLY.
* @param containerConfig
* Workspace Storage Container configuration
*/
public SybaseSingleDbJDBCConnection(Connection dbConnection, boolean readOnly,
JDBCDataContainerConfig containerConfig) throws SQLException
{
super(dbConnection, readOnly, containerConfig);
}
/**
* {@inheritDoc}
*/
@Override
protected String escapeSpecialChars(String pattern)
{
char[] chars = pattern.toCharArray();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < chars.length; i++)
{
switch (chars[i])
{
case '*' :
sb.append('%');
break;
case '_' :
case '%' :
case '[' : //Sybase pattern special symbol
case ']' : //Sybase pattern special symbol
sb.append(getWildcardEscapeSymbol());
default :
sb.append(chars[i]);
}
}
return sb.toString();
}
/**
* {@inheritDoc}
*/
protected void prepareQueries() throws SQLException
{
super.prepareQueries();
FIND_PROPERTY_BY_ID =
"select datalength(DATA), I.P_TYPE, V.STORAGE_DESC from JCR_SITEM I, JCR_SVALUE V where I.ID = ? and V.PROPERTY_ID = I.ID";
SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE =
"select TOP ${TOP} I.ID, I.PARENT_ID, I.NAME, I.VERSION, I.I_INDEX, I.N_ORDER_NUM into "
+ SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME + " from JCR_SITEM I (index JCR_PK_SITEM)"
+ " where I.CONTAINER_NAME=? AND I.I_CLASS=1 AND I.ID > ? order by I.ID ASC";
SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE_B =
"select TOP ${TOP} J.* into "
+ SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME + " from JCR_SITEM J (index JCR_PK_SITEM)"
+ " where J.CONTAINER_NAME=? AND J.I_CLASS=1 AND J.PARENT_ID=? AND J.N_ORDER_NUM >= ? "
+ " order by J.N_ORDER_NUM, J.ID ASC";
FIND_NODES_AND_PROPERTIES =
"select " + SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME
+ ".*, P.ID AS P_ID, P.NAME AS P_NAME, P.VERSION AS P_VERSION, P.P_TYPE, P.P_MULTIVALUED,"
+ " V.DATA, V.ORDER_NUM, V.STORAGE_DESC from JCR_SVALUE V, JCR_SITEM P, "
+ SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME + " where P.PARENT_ID = "
+ SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME
+ ".ID and P.I_CLASS=2 and P.CONTAINER_NAME=? and V.PROPERTY_ID=P.ID " + "order by "
+ SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME + ".ID";
if (containerConfig.useSequenceForOrderNumber)
{
FIND_NODES_BY_PARENTID_LAZILY_CQ =
"select " + SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME
+ ".*,P.NAME AS PROP_NAME, V.ORDER_NUM, V.DATA "
+ " from JCR_SVALUE V, JCR_SITEM P, "
+ SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME + " where P.PARENT_ID = "
+ SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME
+ ".ID and P.I_CLASS=2 and P.CONTAINER_NAME=? and"
+ " (P.NAME='[http://www.jcp.org/jcr/1.0]primaryType' or"
+ " P.NAME='[http://www.jcp.org/jcr/1.0]mixinTypes' or"
+ " P.NAME='[http://www.exoplatform.com/jcr/exo/1.0]owner' or"
+ " P.NAME='[http://www.exoplatform.com/jcr/exo/1.0]permissions')"
+ " and V.PROPERTY_ID=P.ID order by " + SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME + ".N_ORDER_NUM, "
+ SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME + ".ID";
FIND_LAST_ORDER_NUMBER = "exec " + JCR_ITEM_NEXT_VAL + " 'LAST_N_ORDER_NUM', ?, ?";
}
DELETE_TEMPORARY_TABLE_A = "drop table " + SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME;
DELETE_TEMPORARY_TABLE_B = "drop table " + SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME;
FIND_WORKSPACE_DATA_SIZE =
"select sum(datalength(DATA)) from JCR_SITEM I, JCR_SVALUE V where I.I_CLASS=2 and I.CONTAINER_NAME=?"
+ " and I.ID=V.PROPERTY_ID";
FIND_NODE_DATA_SIZE =
"select sum(datalength(DATA)) from JCR_SITEM I, JCR_SVALUE V where I.PARENT_ID=? and I.I_CLASS=2"
+ " and I.CONTAINER_NAME=? and I.ID=V.PROPERTY_ID";
FIND_VALUE_STORAGE_DESC_AND_SIZE = "select datalength(DATA), STORAGE_DESC from JCR_SVALUE where PROPERTY_ID=?";
}
/**
* {@inheritDoc}
*/
protected ResultSet findNodesAndProperties(String lastNodeId, int offset, int limit) throws SQLException
{
String tempTableAName = "tempdb..a" + IdGenerator.generate();
boolean tempTableACreated = false;
try
{
// the Sybase is not allowed DDL query (CREATE TABLE, DROP TABLE, etc. ) within a multi-statement transaction
if (!dbConnection.getAutoCommit())
{
dbConnection.setAutoCommit(true);
}
selectLimitOffsetNodesIntoTemporaryTable =
dbConnection.prepareStatement(SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE.replaceAll(
SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME, tempTableAName).replace("${TOP}",
new Integer(offset + limit).toString()));
if (findNodesAndProperties != null)
{
findNodesAndProperties.close();
}
findNodesAndProperties =
dbConnection.prepareStatement(FIND_NODES_AND_PROPERTIES.replaceAll(
SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME, tempTableAName));
deleteTemporaryTableA =
dbConnection.prepareStatement(DELETE_TEMPORARY_TABLE_A.replaceAll(
SybaseJDBCConnectionHelper.TEMP_A_TABLE_NAME, tempTableAName));
selectLimitOffsetNodesIntoTemporaryTable.setString(1, this.containerConfig.containerName);
selectLimitOffsetNodesIntoTemporaryTable.setString(2, getInternalId(lastNodeId));
selectLimitOffsetNodesIntoTemporaryTable.execute();
tempTableACreated = true;
findNodesAndProperties.setString(1, this.containerConfig.containerName);
return findNodesAndProperties.executeQuery();
}
finally
{
if (tempTableACreated)
{
try
{
deleteTemporaryTableA.execute();
}
catch (SQLException e)
{
LOG.warn("Can not delete temporary table " + tempTableAName);
}
}
// close prepared statement since we always create new
if (selectLimitOffsetNodesIntoTemporaryTable != null)
{
selectLimitOffsetNodesIntoTemporaryTable.close();
}
if (deleteTemporaryTableA != null)
{
deleteTemporaryTableA.close();
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected ResultSet findChildNodesByParentIdentifier(String parentCid, int fromOrderNum, int offset, int limit) throws SQLException
{
if (!containerConfig.useSequenceForOrderNumber)
{
return super.findChildNodesByParentIdentifier(parentCid, fromOrderNum, offset, limit);
}
String tempTableBName = "tempdb..b" + IdGenerator.generate();
boolean tempTableBCreated = false;
try
{
// the Sybase is not allowed DDL query (CREATE TABLE, DROP TABLE, etc. ) within a multi-statement transaction
if (!dbConnection.getAutoCommit())
{
dbConnection.setAutoCommit(true);
}
selectLimitOffsetNodesIntoTemporaryTableB =
dbConnection.prepareStatement(SELECT_LIMIT_OFFSET_NODES_INTO_TEMPORARY_TABLE_B.replaceAll(
SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME, tempTableBName).replace("${TOP}",
new Integer(offset + limit).toString()));
if (findNodesByParentIdLazilyCQ != null)
{
findNodesByParentIdLazilyCQ.close();
}
findNodesByParentIdLazilyCQ =
dbConnection.prepareStatement(FIND_NODES_BY_PARENTID_LAZILY_CQ.replaceAll(
SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME, tempTableBName));
deleteTemporaryTableB =
dbConnection.prepareStatement(DELETE_TEMPORARY_TABLE_B.replaceAll(
SybaseJDBCConnectionHelper.TEMP_B_TABLE_NAME, tempTableBName));
selectLimitOffsetNodesIntoTemporaryTableB.setString(1, this.containerConfig.containerName);
selectLimitOffsetNodesIntoTemporaryTableB.setString(2, parentCid);
selectLimitOffsetNodesIntoTemporaryTableB.setInt(3, fromOrderNum);
selectLimitOffsetNodesIntoTemporaryTableB.execute();
tempTableBCreated = true;
findNodesByParentIdLazilyCQ.setString(1, this.containerConfig.containerName);
return findNodesByParentIdLazilyCQ.executeQuery();
}
finally
{
if (tempTableBCreated)
{
try
{
deleteTemporaryTableB.execute();
}
catch (SQLException e)
{
LOG.warn("Can not delete temporary table " + tempTableBName);
}
}
// close prepared statement since we always create new
if (selectLimitOffsetNodesIntoTemporaryTableB != null)
{
selectLimitOffsetNodesIntoTemporaryTableB.close();
}
if (deleteTemporaryTableB != null)
{
deleteTemporaryTableB.close();
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected ResultSet findLastOrderNumber(int localMaxOrderNumber, boolean increment) throws SQLException
{
if (findLastOrderNumber == null)
{
findLastOrderNumber = dbConnection.prepareCall(FIND_LAST_ORDER_NUMBER);
}
else
{
findLastOrderNumber.clearParameters();
}
int value=increment ? 1 : 0;
findLastOrderNumber.setInt(1, localMaxOrderNumber);
findLastOrderNumber.setInt(2, value);
findLastOrderNumber.execute();
return (findLastOrderNumber).getResultSet();
}
}