org.apache.log4j.helpers.CountingQuietWriter Java Examples

/**
 * Handles append time behavior for CompositeRollingAppender.  This checks
 * if a roll over either by date (checked first) or time (checked second)
 * is need and then appends to the file last.
*/
protected void subAppend(LoggingEvent event) {

	if (rollDate) {
		long n = System.currentTimeMillis();
		if (n >= nextCheck) {
			now.setTime(n);
			nextCheck = rc.getNextCheckMillis(now);

			rollOverTime();
		}
	}

	if (rollSize) {
		if ((fileName != null) && ((CountingQuietWriter) qw).getCount() >= maxFileSize) {
		    rollOverSize();
		}
	}

	super.subAppend(event);
}
 

/**
 * Implements the usual roll over behaviour.
 * <p>
 * <code>File</code> is renamed <code>File.yyyyMMddHHmmss</code> and closed. A
 * new <code>File</code> is created to receive further log output.
 */
// synchronization not necessary since doAppend is alreasy synched
public void rollOver() {
  if (qw != null) {
    long size = ((CountingQuietWriter) qw).getCount();
    LogLog.debug("rolling over count=" + size);
    // if operation fails, do not roll again until
    // maxFileSize more bytes are written
    nextRollover = size + maxFileSize;
  }

  this.closeFile(); // keep windows happy.

  String newFileName = getLogFileName(fileName);
  try {
    // This will also close the file. This is OK since multiple
    // close operations are safe.
    this.setFile(newFileName, false, bufferedIO, bufferSize);
    nextRollover = 0;
  } catch (IOException e) {
    if (e instanceof InterruptedIOException) {
      Thread.currentThread().interrupt();
    }
    LogLog.error("setFile(" + newFileName + ", false) call failed.", e);
  }
}
 

/**
 * Implements the usual roll over behaviour.
 * <p>
 * <code>File</code> is renamed <code>File.yyyyMMddHHmmss</code> and closed. A
 * new <code>File</code> is created to receive further log output.
 */
// synchronization not necessary since doAppend is alreasy synched
public void rollOver() {
  if (qw != null) {
    long size = ((CountingQuietWriter) qw).getCount();
    LogLog.debug("rolling over count=" + size);
    // if operation fails, do not roll again until
    // maxFileSize more bytes are written
    nextRollover = size + maxFileSize;
  }

  this.closeFile(); // keep windows happy.

  String newFileName = getLogFileName(fileName);
  try {
    // This will also close the file. This is OK since multiple
    // close operations are safe.
    this.setFile(newFileName, false, bufferedIO, bufferSize);
    nextRollover = 0;
  } catch (IOException e) {
    if (e instanceof InterruptedIOException) {
      Thread.currentThread().interrupt();
    }
    LogLog.error("setFile(" + newFileName + ", false) call failed.", e);
  }
}
 

/**
This method differentiates RollingFileAppender from its super
class.

@since 0.9.0
*/
@Override
protected void subAppend(
                          LoggingEvent event ) {

    super.subAppend(event);
    if (fileName != null && qw != null) {
        long size = ((CountingQuietWriter) qw).getCount();
        if (size >= maxFileSize && size >= nextRollover) {
            rollOver();
        }
    }
}
 

public
synchronized
void setFile(String fileName, boolean append, boolean bufferedIO, int bufferSize)
                                                               throws IOException {
  super.setFile(fileName, append, this.bufferedIO, this.bufferSize);
  if(append) {
    File f = new File(fileName);
    ((CountingQuietWriter) qw).setCount(f.length());
  }
}
 

/**
   This method differentiates RollingFileAppender from its super
   class.

   @since 0.9.0
*/
protected
void subAppend(LoggingEvent event) {
  super.subAppend(event);
  if(fileName != null && qw != null) {
      long size = ((CountingQuietWriter) qw).getCount();
      if (size >= maxFileSize && size >= nextRollover) {
          rollOver();
      }
  }
 }
 

/**
 * Creates and opens the file for logging.  If <code>staticLogFileName</code>
 * is false then the fully qualified name is determined and used.
 */
public synchronized void setFile(String fileName, boolean append) throws IOException {
	if (!staticLogFileName) {
	    scheduledFilename = fileName = fileName.trim() + sdf.format(now);
		if (countDirection > 0) {
			scheduledFilename = fileName = fileName + '.' + (++curSizeRollBackups);
		}
	}

	super.setFile(fileName, append);
	if(append) {
	  File f = new File(fileName);
	  ((CountingQuietWriter) qw).setCount(f.length());
	}
}
 

public synchronized void setFile(String fileName, boolean append,
    boolean bufferedIO, int bufferSize) throws IOException {
  super.setFile(fileName, append, this.bufferedIO, this.bufferSize);
  if (append) {
    File f = new File(fileName);
    ((CountingQuietWriter) qw).setCount(f.length());
  }
}
 

/**
 * This method differentiates RollingFileAppender from its super class.
 */
protected void subAppend(LoggingEvent event) {
  super.subAppend(event);

  if (fileName != null && qw != null) {
    long size = ((CountingQuietWriter) qw).getCount();
    if (size >= maxFileSize && size >= nextRollover) {
      rollOver();
    }
  }
}
 

public synchronized void setFile(String fileName, boolean append,
    boolean bufferedIO, int bufferSize) throws IOException {
  super.setFile(fileName, append, this.bufferedIO, this.bufferSize);
  if (append) {
    File f = new File(fileName);
    ((CountingQuietWriter) qw).setCount(f.length());
  }
}
 

/**
 * This method differentiates RollingFileAppender from its super class.
 */
protected void subAppend(LoggingEvent event) {
  super.subAppend(event);

  if (fileName != null && qw != null) {
    long size = ((CountingQuietWriter) qw).getCount();
    if (size >= maxFileSize && size >= nextRollover) {
      rollOver();
    }
  }
}
 

protected
void setQWForFiles(Writer writer) {
   this.qw = new CountingQuietWriter(writer, errorHandler);
}
 

protected void setQWForFiles(Writer writer) {
    qw = new CountingQuietWriter(writer, errorHandler);
}
 

/**
 Implements roll overs base on file size.

 <p>If the maximum number of size based backups is reached
 (<code>curSizeRollBackups == maxSizeRollBackups</code) then the oldest
 file is deleted -- it's index determined by the sign of countDirection.<br>
 If <code>countDirection</code> < 0, then files
 {<code>File.1</code>, ..., <code>File.curSizeRollBackups -1</code>}
 are renamed to {<code>File.2</code>, ...,
 <code>File.curSizeRollBackups</code>}.	 Moreover, <code>File</code> is
 renamed <code>File.1</code> and closed.<br>

 A new file is created to receive further log output.

 <p>If <code>maxSizeRollBackups</code> is equal to zero, then the
 <code>File</code> is truncated with no backup files created.

 <p>If <code>maxSizeRollBackups</code> < 0, then <code>File</code> is
 renamed if needed and no files are deleted.
*/

// synchronization not necessary since doAppend is alreasy synched
protected void rollOverSize() {
	File file;

	this.closeFile(); // keep windows happy.

	LogLog.debug("rolling over count=" + ((CountingQuietWriter) qw).getCount());
	LogLog.debug("maxSizeRollBackups = " + maxSizeRollBackups);
	LogLog.debug("curSizeRollBackups = " + curSizeRollBackups);
	LogLog.debug("countDirection = " + countDirection);

	// If maxBackups <= 0, then there is no file renaming to be done.
	if (maxSizeRollBackups != 0) {

		if (countDirection < 0) {
			// Delete the oldest file, to keep Windows happy.
			if (curSizeRollBackups == maxSizeRollBackups) {
			    deleteFile(fileName + '.' + maxSizeRollBackups);
				curSizeRollBackups--;
			}

			// Map {(maxBackupIndex - 1), ..., 2, 1} to {maxBackupIndex, ..., 3, 2}
			for (int i = curSizeRollBackups; i >= 1; i--) {
				rollFile((fileName + "." + i), (fileName + '.' + (i + 1)));
			}

			curSizeRollBackups++;
			// Rename fileName to fileName.1
			rollFile(fileName, fileName + ".1");

		} //REMOVE This code branching for Alexander Cerna's request
		else if (countDirection == 0) {
			//rollFile based on date pattern
			curSizeRollBackups++;
			now.setTime(System.currentTimeMillis());
			scheduledFilename = fileName + sdf.format(now);
			rollFile(fileName, scheduledFilename);
		}
		else { //countDirection > 0
			if (curSizeRollBackups >= maxSizeRollBackups && maxSizeRollBackups > 0) {
				//delete the first and keep counting up.
				int oldestFileIndex = curSizeRollBackups - maxSizeRollBackups + 1;
				deleteFile(fileName + '.' + oldestFileIndex);
			}

			if (staticLogFileName) {
				curSizeRollBackups++;
				rollFile(fileName, fileName + '.' + curSizeRollBackups);
			}
		}
	}

	try {
		// This will also close the file. This is OK since multiple
		// close operations are safe.
		this.setFile(baseFileName, false);
	}
	catch(IOException e) {
		LogLog.error("setFile("+fileName+", false) call failed.", e);
	}
}
 

protected void setQWForFiles(Writer writer) {
  this.qw = new CountingQuietWriter(writer, errorHandler);
}
 

protected void setQWForFiles(Writer writer) {
  this.qw = new CountingQuietWriter(writer, errorHandler);
}