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