com.mysql.cj.util.LogUtils Maven / Gradle / Ivy
/*
* Copyright (c) 2005, 2020, Oracle and/or its affiliates.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 2.0, as published by the
* Free Software Foundation.
*
* This program is also distributed with certain software (including but not
* limited to OpenSSL) that is licensed under separate terms, as designated in a
* particular file or component or in included license documentation. The
* authors of MySQL hereby grant you an additional permission to link the
* program and your derivative works with the separately licensed software that
* they have included with MySQL.
*
* Without limiting anything contained in the foregoing, this file, which is
* part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* 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, version 2.0,
* 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.cj.util;
import com.mysql.cj.conf.PropertyDefinitions;
public class LogUtils {
public static final String CALLER_INFORMATION_NOT_AVAILABLE = "Caller information not available";
private static final String LINE_SEPARATOR = System.getProperty(PropertyDefinitions.SYSP_line_separator);
private static final int LINE_SEPARATOR_LENGTH = LINE_SEPARATOR.length();
public static String findCallingClassAndMethod(Throwable t) {
String stackTraceAsString = Util.stackTraceToString(t);
String callingClassAndMethod = CALLER_INFORMATION_NOT_AVAILABLE;
int endInternalMethods = Math.max(Math.max(stackTraceAsString.lastIndexOf("com.mysql.cj"), stackTraceAsString.lastIndexOf("com.mysql.cj.core")),
stackTraceAsString.lastIndexOf("com.mysql.cj.jdbc"));
if (endInternalMethods != -1) {
int endOfLine = stackTraceAsString.indexOf(LINE_SEPARATOR, endInternalMethods);
if (endOfLine != -1) {
int nextEndOfLine = stackTraceAsString.indexOf(LINE_SEPARATOR, endOfLine + LINE_SEPARATOR_LENGTH);
callingClassAndMethod = nextEndOfLine != -1 ? stackTraceAsString.substring(endOfLine + LINE_SEPARATOR_LENGTH, nextEndOfLine)
: stackTraceAsString.substring(endOfLine + LINE_SEPARATOR_LENGTH);
}
}
if (!callingClassAndMethod.startsWith("\tat ") && !callingClassAndMethod.startsWith("at ")) {
return "at " + callingClassAndMethod;
}
return callingClassAndMethod;
}
}