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nl.aidministrator.util.servlets
Class ServletLog
java.lang.Objectnl.aidministrator.util.servlets.ServletLog
- public class ServletLog
- extends java.lang.Object
Servlet Logging Util. The ServletLog requires servlets to register themselves when their doGet() or doPost() method is called. In this registration procedure, a mapping is made between the thread that the servlet is running in and the host that it handles the request for. This mapping is later used in all calls to logging-methods to look-up the host for the thread calling the logging-methods.
| Field Summary | |
protected static java.text.SimpleDateFormat |
_formatter
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protected static java.lang.String[] |
_levelNames
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protected int |
_logLevel
Log level |
protected java.io.Writer |
_logWriter
Writer for the log file. |
protected java.lang.String |
_threadName
Name of the thread. |
protected static java.util.HashMap |
_threadTable
Maps Threads to ServletLogs. |
protected static java.util.HashMap |
_writerTable
Maps (absolute) file paths to PrintWriters. |
static int |
ALL
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static int |
ERROR
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static int |
NONE
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static int |
STATUS
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static int |
TRACE
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static int |
WARNING
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| Constructor Summary | |
ServletLog()
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ServletLog(java.io.Writer logWriter)
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ServletLog(java.io.Writer logWriter,
int logLevel)
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| Method Summary | |
private static java.lang.String |
_createLogMessage(java.lang.String msg,
java.lang.Object arg,
int level,
java.lang.String threadName)
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private static ServletLog |
_createServletLog()
Creates a ServletLog for the thread calling this method. |
private static java.io.Writer |
_getLogWriter(java.lang.String logFile)
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private static ServletLog |
_getServletLog()
Gets the ServletLog for the thread calling this method. |
protected static void |
_log(java.lang.String msg,
java.lang.Object arg,
int level)
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void |
doLog(java.lang.String msg,
java.lang.Object arg,
int level)
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static void |
error(java.lang.String msg)
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static void |
error(java.lang.String msg,
int c)
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static void |
error(java.lang.String msg,
java.lang.Object arg)
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int |
getLogLevel()
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java.lang.String |
getThreadName()
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static void |
initThread(java.lang.String logFile,
int logLevel)
Sets the log file and log level for the thread calling this method. |
static void |
log(java.lang.String msg)
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static void |
log(java.lang.String msg,
int c)
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static void |
log(java.lang.String msg,
java.lang.Object arg)
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void |
setLogLevel(int logLevel)
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void |
setLogWriter(java.io.Writer logWriter)
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void |
setThreadName(java.lang.String threadName)
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static void |
trace(java.lang.String msg)
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static void |
trace(java.lang.String msg,
int c)
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static void |
trace(java.lang.String msg,
java.lang.Object arg)
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static void |
warning(java.lang.String msg)
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static void |
warning(java.lang.String msg,
int c)
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static void |
warning(java.lang.String msg,
java.lang.Object arg)
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| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
NONE
public static final int NONE
- See Also:
- Constant Field Values
ERROR
public static final int ERROR
- See Also:
- Constant Field Values
WARNING
public static final int WARNING
- See Also:
- Constant Field Values
STATUS
public static final int STATUS
- See Also:
- Constant Field Values
TRACE
public static final int TRACE
- See Also:
- Constant Field Values
ALL
public static final int ALL
- See Also:
- Constant Field Values
_formatter
protected static java.text.SimpleDateFormat _formatter
_levelNames
protected static java.lang.String[] _levelNames
_threadTable
protected static java.util.HashMap _threadTable
- Maps Threads to ServletLogs.
_writerTable
protected static java.util.HashMap _writerTable
- Maps (absolute) file paths to PrintWriters.
_logWriter
protected java.io.Writer _logWriter
- Writer for the log file.
_logLevel
protected int _logLevel
- Log level
_threadName
protected java.lang.String _threadName
- Name of the thread.
| Constructor Detail |
ServletLog
public ServletLog()
ServletLog
public ServletLog(java.io.Writer logWriter)
ServletLog
public ServletLog(java.io.Writer logWriter, int logLevel)
| Method Detail |
initThread
public static void initThread(java.lang.String logFile, int logLevel)
- Sets the log file and log level for the thread calling this method.
All following log messages sent by this thread with a priority equal to
or higher than the indicated logLevel will be written to the indicated
log file. If 'logFile' is equal to 'null', messages will be printed
to System.err.
_createServletLog
private static ServletLog _createServletLog()
- Creates a ServletLog for the thread calling this method. If the
thread has already created a ServletLog before, this existing
ServletLog will be returned.
_getServletLog
private static ServletLog _getServletLog()
- Gets the ServletLog for the thread calling this method. If no
ServletLog is available, null will be returned.
_getLogWriter
private static java.io.Writer _getLogWriter(java.lang.String logFile) throws java.io.IOException
setLogWriter
public void setLogWriter(java.io.Writer logWriter)
setLogLevel
public void setLogLevel(int logLevel)
getLogLevel
public int getLogLevel()
setThreadName
public void setThreadName(java.lang.String threadName)
getThreadName
public java.lang.String getThreadName()
doLog
public void doLog(java.lang.String msg, java.lang.Object arg, int level)
_createLogMessage
private static java.lang.String _createLogMessage(java.lang.String msg, java.lang.Object arg, int level, java.lang.String threadName)
error
public static void error(java.lang.String msg)
error
public static void error(java.lang.String msg, int c)
error
public static void error(java.lang.String msg, java.lang.Object arg)
warning
public static void warning(java.lang.String msg)
warning
public static void warning(java.lang.String msg, int c)
warning
public static void warning(java.lang.String msg, java.lang.Object arg)
log
public static void log(java.lang.String msg)
log
public static void log(java.lang.String msg, int c)
log
public static void log(java.lang.String msg, java.lang.Object arg)
trace
public static void trace(java.lang.String msg)
trace
public static void trace(java.lang.String msg, int c)
trace
public static void trace(java.lang.String msg, java.lang.Object arg)
_log
protected static void _log(java.lang.String msg, java.lang.Object arg, int level)
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SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||