/**
* Determine if the given sql should be logged or not based on the various DumpSqlXXXXXX flags.
*
* @param sql SQL to test.
* @return true if the SQL should be logged, false if not.
*/
private boolean shouldSqlBeLogged(String sql) {
if (sql == null) {
return false;
}
sql = sql.trim();
if (sql.length() < 6) {
return false;
}
sql = sql.substring(0, 6).toLowerCase();
return (Properties.isDumpSqlSelect() && "select".equals(sql))
|| (Properties.isDumpSqlInsert() && "insert".equals(sql))
|| (Properties.isDumpSqlUpdate() && "update".equals(sql))
|| (Properties.isDumpSqlDelete() && "delete".equals(sql))
|| (Properties.isDumpSqlCreate() && "create".equals(sql));
}
public void sqlOccurred(Spy spy, String methodCall, String sql) {
if (!Properties.isDumpSqlFilteringOn() || shouldSqlBeLogged(sql)) {
if (sqlOnlyLogger.isDebugEnabled()) {
sqlOnlyLogger.debug(
getDebugInfo() + nl + spy.getConnectionNumber() + ". " + processSql(sql));
} else if (sqlOnlyLogger.isInfoEnabled()) {
sqlOnlyLogger.info(processSql(sql));
}
}
}
/**
* Special call that is called only for JDBC method calls that contain SQL.
*
* @param spy the Spy wrapping the class where the SQL occurred.
* @param execTime how long it took the SQL to run, in milliseconds.
* @param methodCall a description of the name and call parameters of the method that generated
* the SQL.
* @param sql SQL that occurred.
*/
public void sqlTimingOccurred(Spy spy, long execTime, String methodCall, String sql) {
if (sqlTimingLogger.isErrorEnabled()
&& (!Properties.isDumpSqlFilteringOn() || shouldSqlBeLogged(sql))) {
if (Properties.isSqlTimingErrorThresholdEnabled()
&& execTime >= Properties.getSqlTimingErrorThresholdMsec()) {
sqlTimingLogger.error(
buildSqlTimingDump(spy, execTime, methodCall, sql, sqlTimingLogger.isDebugEnabled()));
} else if (sqlTimingLogger.isWarnEnabled()) {
if (Properties.isSqlTimingWarnThresholdEnabled()
&& execTime >= Properties.getSqlTimingWarnThresholdMsec()) {
sqlTimingLogger.warn(
buildSqlTimingDump(spy, execTime, methodCall, sql, sqlTimingLogger.isDebugEnabled()));
} else if (sqlTimingLogger.isDebugEnabled()) {
sqlTimingLogger.debug(buildSqlTimingDump(spy, execTime, methodCall, sql, true));
} else if (sqlTimingLogger.isInfoEnabled()) {
sqlTimingLogger.info(buildSqlTimingDump(spy, execTime, methodCall, sql, false));
}
}
}
}
/**
* Get debugging info - the module and line number that called the logger version that prints the
* stack trace information from the point just before we got it (net.sf.log4jdbc)
*
* <p>if the optional log4jdbc.debug.stack.prefix system property is defined then the last call
* point from an application is shown in the debug trace output, instead of the last direct caller
* into log4jdbc
*
* @return debugging info for whoever called into JDBC from within the application.
*/
private static String getDebugInfo() {
Throwable t = new Throwable();
t.fillInStackTrace();
StackTraceElement[] stackTrace = t.getStackTrace();
if (stackTrace != null) {
String className;
StringBuffer dump = new StringBuffer();
/**
* The DumpFullDebugStackTrace option is useful in some situations when we want to see the
* full stack trace in the debug info- watch out though as this will make the logs HUGE!
*/
if (Properties.isDumpFullDebugStackTrace()) {
boolean first = true;
for (int i = 0; i < stackTrace.length; i++) {
className = stackTrace[i].getClassName();
if (!className.startsWith("net.sf.log4jdbc")) {
if (first) {
first = false;
} else {
dump.append(" ");
}
dump.append("at ");
dump.append(stackTrace[i]);
dump.append(nl);
}
}
} else {
dump.append(" ");
int firstLog4jdbcCall = 0;
int lastApplicationCall = 0;
for (int i = 0; i < stackTrace.length; i++) {
className = stackTrace[i].getClassName();
if (className.startsWith("net.sf.log4jdbc")) {
firstLog4jdbcCall = i;
} else if (Properties.isTraceFromApplication()
&& Pattern.matches(Properties.getDebugStackPrefix(), className)) {
lastApplicationCall = i;
break;
}
}
int j = lastApplicationCall;
if (j
== 0) // if app not found, then use whoever was the last guy that called a log4jdbc
// class.
{
j = 1 + firstLog4jdbcCall;
}
dump.append(stackTrace[j].getClassName())
.append(".")
.append(stackTrace[j].getMethodName())
.append("(")
.append(stackTrace[j].getFileName())
.append(":")
.append(stackTrace[j].getLineNumber())
.append(")");
}
return dump.toString();
}
return null;
}
/**
* Break an SQL statement up into multiple lines in an attempt to make it more readable
*
* @param sql SQL to break up.
* @return SQL broken up into multiple lines
*/
private String processSql(String sql) {
if (sql == null) {
return null;
}
if (Properties.isSqlTrim()) {
sql = sql.trim();
}
StringBuilder output = new StringBuilder();
if (Properties.getDumpSqlMaxLineLength() <= 0) {
output.append(sql);
} else {
// insert line breaks into sql to make it more readable
StringTokenizer st = new StringTokenizer(sql);
String token;
int linelength = 0;
while (st.hasMoreElements()) {
token = (String) st.nextElement();
output.append(token);
linelength += token.length();
output.append(" ");
linelength++;
if (linelength > Properties.getDumpSqlMaxLineLength()) {
output.append(nl);
linelength = 0;
}
}
}
if (Properties.isDumpSqlAddSemicolon()) {
output.append(";");
}
String stringOutput = output.toString();
if (Properties.isTrimExtraBlankLinesInSql()) {
LineNumberReader lineReader = new LineNumberReader(new StringReader(stringOutput));
output = new StringBuilder();
int contiguousBlankLines = 0;
try {
while (true) {
String line = lineReader.readLine();
if (line == null) {
break;
}
// is this line blank?
if (line.trim().length() == 0) {
contiguousBlankLines++;
// skip contiguous blank lines
if (contiguousBlankLines > 1) {
continue;
}
} else {
contiguousBlankLines = 0;
output.append(line);
}
output.append(nl);
}
} catch (IOException e) {
// since we are reading from a buffer, this isn't likely to happen,
// but if it does we just ignore it and treat it like its the end of the stream
}
stringOutput = output.toString();
}
return stringOutput;
}