/*
Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FLOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
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, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.jdbc.log;
import com.mysql.jdbc.Util;
import com.mysql.jdbc.profiler.ProfilerEvent;
public class LogUtils {
public static final String CALLER_INFORMATION_NOT_AVAILABLE = "Caller information not available";
private static final String LINE_SEPARATOR = System
.getProperty("line.separator");
private static final int LINE_SEPARATOR_LENGTH = LINE_SEPARATOR.length();
public static Object expandProfilerEventIfNecessary(
Object possibleProfilerEvent) {
if (possibleProfilerEvent instanceof ProfilerEvent) {
StringBuffer msgBuf = new StringBuffer();
ProfilerEvent evt = (ProfilerEvent) possibleProfilerEvent;
String locationInformation = evt.getEventCreationPointAsString();
if (locationInformation == null) {
locationInformation = Util.stackTraceToString(new Throwable());
}
msgBuf.append("Profiler Event: [");
switch (evt.getEventType()) {
case ProfilerEvent.TYPE_EXECUTE:
msgBuf.append("EXECUTE");
break;
case ProfilerEvent.TYPE_FETCH:
msgBuf.append("FETCH");
break;
case ProfilerEvent.TYPE_OBJECT_CREATION:
msgBuf.append("CONSTRUCT");
break;
case ProfilerEvent.TYPE_PREPARE:
msgBuf.append("PREPARE");
break;
case ProfilerEvent.TYPE_QUERY:
msgBuf.append("QUERY");
break;
case ProfilerEvent.TYPE_WARN:
msgBuf.append("WARN");
break;
case ProfilerEvent.TYPE_SLOW_QUERY:
msgBuf.append("SLOW QUERY");
break;
default:
msgBuf.append("UNKNOWN");
}
msgBuf.append("] ");
msgBuf.append(locationInformation);
msgBuf.append(" duration: ");
msgBuf.append(evt.getEventDuration());
msgBuf.append(" ");
msgBuf.append(evt.getDurationUnits());
msgBuf.append(", connection-id: ");
msgBuf.append(evt.getConnectionId());
msgBuf.append(", statement-id: ");
msgBuf.append(evt.getStatementId());
msgBuf.append(", resultset-id: ");
msgBuf.append(evt.getResultSetId());
String evtMessage = evt.getMessage();
if (evtMessage != null) {
msgBuf.append(", message: ");
msgBuf.append(evtMessage);
}
return msgBuf;
}
return possibleProfilerEvent;
}
public static String findCallingClassAndMethod(Throwable t) {
String stackTraceAsString = Util.stackTraceToString(t);
String callingClassAndMethod = CALLER_INFORMATION_NOT_AVAILABLE;
int endInternalMethods = stackTraceAsString
.lastIndexOf("com.mysql.jdbc");
if (endInternalMethods != -1) {
int endOfLine = -1;
int compliancePackage = stackTraceAsString.indexOf(
"com.mysql.jdbc.compliance", endInternalMethods);
if (compliancePackage != -1) {
endOfLine = compliancePackage - LINE_SEPARATOR_LENGTH;
} else {
endOfLine = stackTraceAsString.indexOf(LINE_SEPARATOR,
endInternalMethods);
}
if (endOfLine != -1) {
int nextEndOfLine = stackTraceAsString.indexOf(LINE_SEPARATOR,
endOfLine + LINE_SEPARATOR_LENGTH);
if (nextEndOfLine != -1) {
callingClassAndMethod = stackTraceAsString.substring(
endOfLine + LINE_SEPARATOR_LENGTH, nextEndOfLine);
} else {
callingClassAndMethod = stackTraceAsString
.substring(endOfLine + LINE_SEPARATOR_LENGTH);
}
}
}
if (!callingClassAndMethod.startsWith("\tat ") &&
!callingClassAndMethod.startsWith("at ")) {
return "at " + callingClassAndMethod;
}
return callingClassAndMethod;
}
}