/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at .
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox ,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2003 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.app;
import java.sql.*;
import java.util.*;
import com.silverwrist.util.*;
import com.silverwrist.dynamo.except.*;
import com.silverwrist.dynamo.iface.*;
import com.silverwrist.venice.SearchMode;
public class AdvancedUserOps_mysql extends AdvancedUserOps
{
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private DBUtilities m_utils;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
public AdvancedUserOps_mysql(DBConnectionPool pool)
{
super(pool);
m_utils = (DBUtilities)(pool.queryService(DBUtilities.class));
} // end constructor
/*--------------------------------------------------------------------------------
* Internal operations
*--------------------------------------------------------------------------------
*/
private final String preparePropertySearchTerm(SearchMode mode, String term)
{
StringBuffer buf = new StringBuffer();
if (SearchMode.PREFIX.equals(mode))
buf.append("LIKE '!").append(m_utils.encodeStringWildcards(term)).append("%'");
else if (SearchMode.SUBSTRING.equals(mode))
buf.append("LIKE '!%").append(m_utils.encodeStringWildcards(term)).append("%'");
else if (SearchMode.REGEXP.equals(mode))
{ // for regular expressions, if we're matching the start of the string, we have to include the ! prefix
buf.append("REGEXP '");
if (term.startsWith("^"))
buf.append("^!").append(m_utils.encodeString(term.substring(1)));
else
buf.append(m_utils.encodeString(term));
buf.append('\'');
} // end else if
return buf.toString();
} // end preparePropertySearchTerm
/*--------------------------------------------------------------------------------
* Overrides from class OpsBase
*--------------------------------------------------------------------------------
*/
public void dispose()
{
m_utils = null;
super.dispose();
} // end dispose
/*--------------------------------------------------------------------------------
* Abstract implementations from class AdvancedUserOps
*--------------------------------------------------------------------------------
*/
int[] searchProperty(int nsid, String name, SearchMode mode, String term, int offset, int count)
throws DatabaseException
{
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try
{ // get a connection
conn = getConnection();
// prepare and execute a query (note that we assemble it in SQL form)
StringBuffer sql = new StringBuffer("SELECT u.uid FROM users u, userprop p WHERE u.uid = p.uid "
+ "AND u.is_anon = 0 AND p.nsid = ");
sql.append(nsid).append(" AND p.prop_name = '").append(m_utils.encodeString(name)).append("' AND p.prop_value ");
sql.append(preparePropertySearchTerm(mode,term));
sql.append(" ORDER BY u.name LIMIT ").append(offset).append(", ").append(count+1).append(';');
stmt = conn.createStatement();
rs = stmt.executeQuery(sql.toString());
// We *know* the maximum number of indexes that can be returned, so allocate a temporary array big
// enough to hold them all.
int[] tmp = new int[count+1];
int ct = 0;
while (rs.next())
tmp[ct++] = rs.getInt(1);
// Create the actual return array and fill it.
int[] rc = new int[ct];
System.arraycopy(tmp,0,rc,0,ct);
return rc;
} // end try
catch (SQLException e)
{ // translate to a general DatabaseException
throw generalException(e);
} // end catch
finally
{ // shut everything down
SQLUtils.shutdown(rs);
SQLUtils.shutdown(stmt);
SQLUtils.shutdown(conn);
} // end finally
} // end searchProperty
int searchPropertyCount(int nsid, String name, SearchMode mode, String term) throws DatabaseException
{
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try
{ // get a connection
conn = getConnection();
// prepare and execute a query (note that we assemble it in SQL form)
StringBuffer sql = new StringBuffer("SELECT COUNT(*) FROM users u, userprop p WHERE u.uid = p.uid "
+ "AND u.is_anon = 0 AND p.nsid = ");
sql.append(nsid).append(" AND p.prop_name = '").append(m_utils.encodeString(name)).append("' AND p.prop_value ");
sql.append(preparePropertySearchTerm(mode,term));
sql.append(';');
stmt = conn.createStatement();
rs = stmt.executeQuery(sql.toString());
return SQLUtils.getReturnCountInt(rs,1);
} // end try
catch (SQLException e)
{ // translate to a general DatabaseException
throw generalException(e);
} // end catch
finally
{ // shut everything down
SQLUtils.shutdown(rs);
SQLUtils.shutdown(stmt);
SQLUtils.shutdown(conn);
} // end finally
} // end searchPropertyCount
int[] searchName(SearchMode mode, String term, int offset, int count) throws DatabaseException
{
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try
{ // get a connection
conn = getConnection();
// prepare and execute a query (note that we assemble it in SQL form)
StringBuffer sql = new StringBuffer("SELECT uid FROM users WHERE is_anon = 0 AND username ");
if (SearchMode.PREFIX.equals(mode))
sql.append("LIKE '").append(m_utils.encodeStringWildcards(term)).append("%'");
else if (SearchMode.SUBSTRING.equals(mode))
sql.append("LIKE '%").append(m_utils.encodeStringWildcards(term)).append("%'");
else if (SearchMode.REGEXP.equals(mode))
sql.append("REGEXP '").append(m_utils.encodeString(term)).append('\'');
sql.append(" ORDER BY username LIMIT ").append(offset).append(", ").append(count+1).append(';');
stmt = conn.createStatement();
rs = stmt.executeQuery(sql.toString());
// We *know* the maximum number of indexes that can be returned, so allocate a temporary array big
// enough to hold them all.
int[] tmp = new int[count+1];
int ct = 0;
while (rs.next())
tmp[ct++] = rs.getInt(1);
// Create the actual return array and fill it.
int[] rc = new int[ct];
System.arraycopy(tmp,0,rc,0,ct);
return rc;
} // end try
catch (SQLException e)
{ // translate to a general DatabaseException
throw generalException(e);
} // end catch
finally
{ // shut everything down
SQLUtils.shutdown(rs);
SQLUtils.shutdown(stmt);
SQLUtils.shutdown(conn);
} // end finally
} // end searchName
int searchNameCount(SearchMode mode, String term) throws DatabaseException
{
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try
{ // get a connection
conn = getConnection();
// prepare and execute a query (note that we assemble it in SQL form)
StringBuffer sql = new StringBuffer("SELECT COUNT(*) FROM users WHERE is_anon = 0 AND username ");
if (SearchMode.PREFIX.equals(mode))
sql.append("LIKE '").append(m_utils.encodeStringWildcards(term)).append("%'");
else if (SearchMode.SUBSTRING.equals(mode))
sql.append("LIKE '%").append(m_utils.encodeStringWildcards(term)).append("%'");
else if (SearchMode.REGEXP.equals(mode))
sql.append("REGEXP '").append(m_utils.encodeString(term)).append('\'');
sql.append(';');
stmt = conn.createStatement();
rs = stmt.executeQuery(sql.toString());
return SQLUtils.getReturnCountInt(rs,1);
} // end try
catch (SQLException e)
{ // translate to a general DatabaseException
throw generalException(e);
} // end catch
finally
{ // shut everything down
SQLUtils.shutdown(rs);
SQLUtils.shutdown(stmt);
SQLUtils.shutdown(conn);
} // end finally
} // end searchNameCount
} // end class AdvancedUserOps_mysql