simplelogmanager.java

pastry的java实现的2.0b版

/*************************************************************************

"FreePastry" Peer-to-Peer Application Development Substrate 

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********************************************************************************/
/*
 *  Created on Apr 6, 2005
 */
package rice.environment.logging.simple;

import java.io.PrintStream;
import java.util.Hashtable;

import rice.environment.logging.*;
import rice.environment.logging.LogManager;
import rice.environment.params.ParameterChangeListener;
import rice.environment.params.Parameters;
import rice.environment.time.TimeSource;
import rice.environment.time.simple.SimpleTimeSource;

/**
 * This class creates loggers that log to a specified PrintStream System.out by
 * default.
 *
 * @version $Id: pretty.settings 2305 2005-03-11 20:22:33Z jeffh $
 * @author Jeff Hoye
 */
public class SimpleLogManager extends AbstractLogManager implements CloneableLogManager {

  /**
   * Constructor.
   *
   * @param stream the stream to write to
   * @param timeSource the timesource to get times from
   * @param params DESCRIBE THE PARAMETER
   */
  public SimpleLogManager(PrintStream stream, TimeSource timeSource, Parameters params) {
    this(stream, timeSource, params, "", null);
  }

  /**
   * Constructor for SimpleLogManager.
   *
   * @param stream DESCRIBE THE PARAMETER
   * @param timeSource DESCRIBE THE PARAMETER
   * @param params DESCRIBE THE PARAMETER
   * @param prefix DESCRIBE THE PARAMETER
   * @param dateFormat DESCRIBE THE PARAMETER
   */
  public SimpleLogManager(PrintStream stream, TimeSource timeSource, Parameters params, String prefix, String dateFormat) {
    super(stream, timeSource, params, prefix, dateFormat);
  }


  /**
   * Convienience constructor. Defauts to System.out as the stream, and
   * SimpleTimeSource as the timesource.
   *
   * @param params DESCRIBE THE PARAMETER
   */
  public SimpleLogManager(Parameters params) {
    this(null, new SimpleTimeSource(), params);
  }

  /**
   * Convienience constructor. Defauts to SimpleTimeSource as the timesource.
   *
   * @param stream the stream to write to
   * @param params DESCRIBE THE PARAMETER
   */
  public SimpleLogManager(PrintStream stream, Parameters params) {
    this(stream, new SimpleTimeSource(), params);
  }

  /**
   * Convienience constructor. Defauts to System.out as the stream.
   *
   * @param timeSource the timesource to get times from
   * @param params DESCRIBE THE PARAMETER
   */
  public SimpleLogManager(TimeSource timeSource, Parameters params) {
    this(null, timeSource, params);
  }

  /**
   * Gets the PrintStream attribute of the SimpleLogManager object
   *
   * @return The PrintStream value
   */
  public PrintStream getPrintStream() {
    return ps;
  }

  /**
   * Gets the Parameters attribute of the SimpleLogManager object
   *
   * @return The Parameters value
   */
  public Parameters getParameters() {
    return params;
  }

  /**
   * Gets the TimeSource attribute of the SimpleLogManager object
   *
   * @return The TimeSource value
   */
  public TimeSource getTimeSource() {
    return time;
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @param clazz DESCRIBE THE PARAMETER
   * @param level DESCRIBE THE PARAMETER
   * @param useDefault DESCRIBE THE PARAMETER
   * @return DESCRIBE THE RETURN VALUE
   */
  protected Logger constructLogger(String clazz, int level, boolean useDefault) {
    return new SimpleLogger(clazz, this, level, useDefault);
  }

  /*
   *  (non-Javadoc)
   *  @see rice.environment.logging.CloneableLogManager#clone(java.lang.String)
   */
  /**
   * DESCRIBE THE METHOD
   *
   * @param detail DESCRIBE THE PARAMETER
   * @return DESCRIBE THE RETURN VALUE
   */
  public LogManager clone(String detail) {
    return new SimpleLogManager(ps, time, params, detail, dateFormat);
  }

}