oracle.adf.share.logging.internal
Class BaseFileHandler

java.lang.Object
  java.util.logging.Handler
      java.util.logging.StreamHandler
          java.util.logging.FileHandler
              oracle.adf.share.logging.internal.BaseFileHandler

Direct Known Subclasses:

AnalyticsFileHandler, PerfFileHandler

public class BaseFileHandler
extends java.util.logging.FileHandler

Base file logging handler for both performance and business analytics logging

Constructor Summary

protected

BaseFileHandler(java.lang.String pattern, int limit, int count, boolean append, int bufSize) Constructor to create a file based handler

Method Summary

protected java.lang.String	addRecordToList(java.util.logging.LogRecord record, java.lang.String ecid) Add a record to the LinkedList identified by ECID.
void	flush() Flush the map entry identified by current ecid from internal logging buffer.
protected java.lang.String	getLeastAccessedECID() Return the least accessed ECID.
protected boolean	isBufferFull() Is buffer mLogRecordBuffer full(too many requests in the buffer)?
protected boolean	isRecordListTooLong(java.lang.String ecid) Does the length of log records exceend LOGRECORDS_PER_LINE?
protected void	printList(java.lang.String ecid, java.util.LinkedList recordList) Print the log record list based on ecid
protected java.util.LinkedList	removeList(java.lang.String ecid) Remove the linked list from buffer based on ECID
protected void	reportError(java.lang.String msg, java.lang.Exception ex, int code) This is the standard logging error reporting mechanism used by JUL handlers.

Methods inherited from class java.util.logging.FileHandler

close, publish

Methods inherited from class java.util.logging.StreamHandler

isLoggable, setEncoding, setOutputStream

Methods inherited from class java.util.logging.Handler

getEncoding, getErrorManager, getFilter, getFormatter, getLevel, setErrorManager, setFilter, setFormatter, setLevel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaseFileHandler

protected BaseFileHandler(java.lang.String pattern,
                          int limit,
                          int count,
                          boolean append,
                          int bufSize)
                   throws java.io.IOException,
                          java.lang.SecurityException

Constructor to create a file based handler

Parameters:

pattern - log file name pattern

limit - log file size limit

count - number of log files

append - true means log contents being appended to the existing file. false means the existing log file is truncated.

bufSize - the size of internal buffer to hold specified number of request log line. Each request normally generates only one line performanc logging entry and business analytics entry.

Throws:

java.io.IOException

java.lang.SecurityException

Method Detail

flush

public void flush()

Flush the map entry identified by current ecid from internal logging buffer. This function should be called by ADF framework.

Overrides:

flush in class java.util.logging.StreamHandler

addRecordToList

protected java.lang.String addRecordToList(java.util.logging.LogRecord record,
                                           java.lang.String ecid)

Add a record to the LinkedList identified by ECID. Create a new LinkedList if necessary.

isBufferFull

protected boolean isBufferFull()

Is buffer mLogRecordBuffer full(too many requests in the buffer)?

isRecordListTooLong

protected boolean isRecordListTooLong(java.lang.String ecid)

Does the length of log records exceend LOGRECORDS_PER_LINE?

getLeastAccessedECID

protected java.lang.String getLeastAccessedECID()

Return the least accessed ECID. This is supported by the iterator of LinkedHashMap.

removeList

protected java.util.LinkedList removeList(java.lang.String ecid)

Remove the linked list from buffer based on ECID

printList

protected void printList(java.lang.String ecid,
                         java.util.LinkedList recordList)

Print the log record list based on ecid

reportError

protected void reportError(java.lang.String msg,
                           java.lang.Exception ex,
                           int code)

This is the standard logging error reporting mechanism used by JUL handlers.

Overrides:

reportError in class java.util.logging.Handler