/********************************************************* begin of preamble
**
** Copyright (C) 2003-2010 Software- und Organisations-Service GmbH.
** All rights reserved.
**
** This file may be used under the terms of either the
**
** GNU General Public License version 2.0 (GPL)
**
** as published by the Free Software Foundation
** http://www.gnu.org/licenses/gpl-2.0.txt and appearing in the file
** LICENSE.GPL included in the packaging of this file.
**
** or the
**
** Agreement for Purchase and Licensing
**
** as offered by Software- und Organisations-Service GmbH
** in the respective terms of supply that ship with this file.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
** IS" AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
********************************************************** end of preamble*/
package sos.connection;
import java.util.GregorianCalendar;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.sql.Driver;
import java.sql.Statement;
import java.sql.Connection;
import sos.util.SOSClassUtil;
import sos.util.SOSLogger;
import sos.util.SOSString;
/**
* <p>Title: </p>
* <p>Description: Implementierung der SOSCOnnection-Klasse</p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Company: SOS GmbH</p>
* @author <a href="mailto:andreas.pueschel@sos-berlin.com">Andreas P�schel</a>
* @author <a href="mailto:ghassan.beydoun@sos-berlin.com">Ghassan Beydoun</a>
* @resource jaybird-full-2.0.1.jar sos.util.jar
*/
public class SOSFbSQLConnection extends sos.connection.SOSConnection implements SequenceReader{
/** Umsetzung f�r %lcase, %ucase, %now */
private static final String replacement[] = { "LOWER", "UPPER", "CURRENT_TIMESTAMP",
"FOR UPDATE WITH LOCK"};
private static final SOSConnectionVersionLimiter versionLimiter;
// Initialisierung des versionLimiter
static {
versionLimiter = new SOSConnectionVersionLimiter();
versionLimiter.addSupportedVersion(1,5);
versionLimiter.setExcludedThroughVersion(1,4);
}
/**
* @param connection
* @param logger
* @throws java.lang.Exception
*/
public SOSFbSQLConnection(Connection connection, SOSLogger logger)
throws Exception {
super(connection, logger);
}
/**
* @param connection
* @throws java.lang.Exception
*/
public SOSFbSQLConnection(Connection connection) throws Exception {
super(connection);
}
public SOSFbSQLConnection(String configFileName, SOSLogger logger)
throws Exception {
super(configFileName, logger);
}
public SOSFbSQLConnection(String configFileName) throws Exception {
super(configFileName);
}
public SOSFbSQLConnection(String driver, String url, String dbuser,
String dbpassword, SOSLogger logger) throws Exception {
super(driver, url, dbuser, dbpassword, logger);
}
public SOSFbSQLConnection(String driver, String url, String dbuser,
String dbpassword) throws Exception {
super(driver, url, dbuser, dbpassword);
}
public void connect() throws Exception {
Properties properties = new Properties();
logger.debug6("calling " + SOSClassUtil.getMethodName());
if (SOSString.isEmpty(url))
throw new Exception(SOSClassUtil.getMethodName()
+ ": missing database url.");
if (SOSString.isEmpty(driver))
throw new Exception(SOSClassUtil.getMethodName()
+ ": missing database driver.");
if (SOSString.isEmpty(dbuser))
throw new Exception(SOSClassUtil.getMethodName()
+ ": missing database user.");
//if (SOSString.isEmpty(dbpassword))
// throw new Exception(SOSClassUtil.getMethodName()
// + ": missing database password.");
if (SOSString.isEmpty(dbpassword)) dbpassword = "";
properties.setProperty("user", dbuser);
properties.setProperty("password", dbpassword);
Driver driver = (Driver) Class.forName(this.driver).newInstance();
connection = driver.connect(url, properties);
if (connection == null)
throw new Exception("can't connect to database");
versionLimiter.check(this, logger);
logger.debug6(".. successfully connected to " + url);
prepare(connection);
}
public void prepare(Connection connection) throws Exception {
logger.debug6("calling " + SOSClassUtil.getMethodName());
Statement stmt = null;
try {
if (connection == null)
throw new Exception("can't connect to database");
connection.setAutoCommit(false);
connection.setTransactionIsolation(connection.TRANSACTION_REPEATABLE_READ);
/*
stmt = connection.createStatement();
String SQL_DIALECT = "SET SQL DIALECT 3";
stmt.execute(SQL_DIALECT);
logger.debug9(".. " + SQL_DIALECT + " successfully set.");
*/
connection.rollback();
} catch (Exception e) {
throw e;
} finally {
try {
if (stmt != null) stmt.close();
} catch (Exception e) {
}
}
}
/**
* returns an FbSQL timestamp function
*
* @param dateString
* @return Firebird timestamp function
* @throws java.lang.Exception
*/
public String toDate(String dateString) throws Exception {
if (SOSString.isEmpty(dateString))
throw new Exception(SOSClassUtil.getMethodName()
+ ": dateString has no value.");
return "CAST('" + dateString + "' AS TIMESTAMP)";
}
protected GregorianCalendar getDateTime(String format) throws Exception {
GregorianCalendar gc = new GregorianCalendar();
String timestamp = this.getSingleValue("select FIRST 1 CURRENT_TIMESTAMP from RDB$DATABASE");
if (timestamp.length() > 19) {
timestamp = timestamp.substring(0, 19);
}
java.util.Date date = sos.util.SOSDate.getDate(timestamp, format);
gc.setTime(date);
return gc;
}
protected String replaceCasts( String inputString) throws Exception {
logger.debug6("Calling " + SOSClassUtil.getMethodName());
Pattern pattern = Pattern.compile(CAST_PATTERN);
Matcher matcher = pattern.matcher(inputString);
StringBuffer buffer = new StringBuffer();
String replaceString = null;
String token;
logger.debug9("..inputString [" + inputString + "]");
while ((matcher.find())) {
replaceString = matcher.group().toLowerCase();
if ( matcher.group(1) != null && matcher.group(6) != null) {
token = matcher.group(6).replaceFirst("\\)","").trim();
if ( token.matches(".*varchar.*")) {
replaceString = replaceString.replaceAll("varchar"," as varchar(1000)");
replaceString = replaceString.replaceFirst("%cast","cast");
} else if ( token.matches(".*character.*")) {
replaceString = replaceString.replaceAll("character"," as character");
replaceString = replaceString.replaceFirst("%cast","cast");
} else if (token.matches(".*integer.*")) {
replaceString = replaceString.replaceAll("integer"," as integer");
replaceString = replaceString.replaceFirst("%cast","cast");
}
else if (token.matches(".*timestamp.*")) {
replaceString = replaceString.replaceAll("timestamp"," as timestamp");
replaceString = replaceString.replaceFirst("%cast","cast");
}
else if (token.matches(".*datetime.*")) {
replaceString = replaceString.replaceAll("datetime"," as timestamp");
replaceString = replaceString.replaceFirst("%cast","cast");
}
} // if
if ( matcher.group(3) != null && matcher.group(4) != null) { // group 4 "VALUE <data_type>"
token = matcher.group(4).replaceFirst("\\(","").trim();
if ( token.matches(".*varchar.*")) {
replaceString = replaceString.replaceAll("varchar"," as varchar(1000)");
replaceString = replaceString.replaceAll("%cast","cast");
} else if ( token.matches(".*character.*")) {
replaceString = replaceString.replaceAll("character"," as character");
replaceString = replaceString.replaceAll("%cast","cast");
} else if (token.matches(".*integer.*")) {
replaceString = replaceString.replaceAll("integer"," as integer");
replaceString = replaceString.replaceAll("%cast","cast");
}
else if (token.matches(".*timestamp.*")) {
replaceString = replaceString.replaceAll("timestamp"," as timestamp");
replaceString = replaceString.replaceFirst("%cast","cast");
}
else if (token.matches(".*datetime.*")) {
replaceString = replaceString.replaceAll("datetime"," as timestamp");
replaceString = replaceString.replaceFirst("%cast","cast");
}
}
replaceString = replaceString.toUpperCase();
matcher.appendReplacement(buffer, replaceString);
} // while
matcher.appendTail(buffer);
logger.debug6(".. result [" + buffer.toString() + "]");
return buffer.toString();
} // pseudoFunctions
protected String getLastSequenceQuery(String sequence) {
return "SELECT GEN_ID("+sequence+", 0) FROM RDB$DATABASE;";
}
public String getNextSequenceValue(String sequence) throws Exception {
return getSingleValue("SELECT GEN_ID("+sequence+", 1) FROM RDB$DATABASE;");
}
protected boolean prepareGetStatements(StringBuffer contentSB,StringBuffer splitSB,StringBuffer endSB) throws Exception{
if(contentSB == null){ throw new Exception("contentSB is null");}
if(splitSB == null){ throw new Exception("splitSB is null");}
if(endSB == null){ throw new Exception("endSB is null");}
StringBuffer patterns = new StringBuffer("set+[\\s]*term[inator]*[\\s]*(.*);");
Pattern p = Pattern.compile(patterns.toString());
Matcher matcher = p.matcher(contentSB.toString().toLowerCase().trim());
if (matcher.find()) {
// System.out.println("group:" + matcher.group(1) + ":\n");
// System.out.println("start:" + matcher.start() + "\n");
// System.out.println("end:" + matcher.end() + "\n");
splitSB.append("\\" + matcher.group(1));
String strContent = contentSB.toString().replaceAll("(?i)set+[\\s]*term[inator]*[\\s]*.*\\n", "");
contentSB.delete(0,contentSB.length());
contentSB.append(strContent);
} else {
splitSB.append("\n/\n");
}
endSB.append("");
return true;
}
public String[] getReplacement() {
return replacement;
}
}