loghandlerconfig.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 327 行

/*
 * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.log;

import com.caucho.config.ConfigException;
import com.caucho.config.types.*;
import com.caucho.jmx.Jmx;
import com.caucho.loader.CloseListener;
import com.caucho.loader.Environment;
import com.caucho.log.formatter.TimestampFormatter;
import com.caucho.log.handler.PathHandler;
import com.caucho.management.server.*;
import com.caucho.util.L10N;
import com.caucho.vfs.*;

import javax.annotation.PostConstruct;
import javax.management.*;
import java.io.*;
import java.util.*;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.util.logging.Filter;
import java.util.logging.Formatter;
import java.util.logging.Handler;

/**
 * Configures a log handler
 */

public class LogHandlerConfig extends BeanConfig {
  private static final Logger log
    = Logger.getLogger(LogHandlerConfig.class.getName());
  private static final L10N L = new L10N(LogHandlerConfig.class);

  private Level _level;
  
  private Formatter _formatter;
  
  private Filter _filter;

  private boolean _useParentHandlers;
  private Handler _handler;
  
  private String _timestamp = "[%Y/%m/%d %H:%M:%S.%s] {%{thread}} ";
  private PathHandler _pathHandler;

  public LogHandlerConfig()
  {
    setBeanConfigClass(Handler.class);
  }

  /**
   * Sets the name of the logger to configure.
   *
   * @deprecated Use setName()
   */
  public void setId(String name)
  {
    // backward compat
    if (name.equals("/"))
      name = "";
    
    setName(name);
  }

  /**
   * Sets the path
   */
  public void setPath(Path path)
  {
    if (_pathHandler == null)
      _pathHandler = new PathHandler();

    _pathHandler.setPath(path);
  }

  /**
   * Sets the path-format
   */
  public void setPathFormat(String pathFormat)
  {
    if (_pathHandler == null)
      _pathHandler = new PathHandler();

    _pathHandler.setPathFormat(pathFormat);
  }

  /**
   * Sets the archive-format
   */
  public void setArchiveFormat(String archiveFormat)
  {
    if (_pathHandler == null)
      _pathHandler = new PathHandler();

    _pathHandler.setArchiveFormat(archiveFormat);
  }

  /**
   * Sets the rollover-period
   */
  public void setRolloverPeriod(Period rolloverPeriod)
  {
    if (_pathHandler == null)
      _pathHandler = new PathHandler();

    _pathHandler.setRolloverPeriod(rolloverPeriod);
  }

  /**
   * Sets the rollover-size
   */
  public void setRolloverSize(Bytes size)
  {
    if (_pathHandler == null)
      _pathHandler = new PathHandler();

    _pathHandler.setRolloverSize(size);
  }

  /**
   * Sets the rollover-count
   */
  public void setRolloverCount(int count)
  {
    if (_pathHandler == null)
      _pathHandler = new PathHandler();

    _pathHandler.setRolloverCount(count);
  }

  /**
   * Sets the use-parent-handlers
   */
  public void setUseParentHandlers(boolean useParentHandlers)
    throws ConfigException
  {
    _useParentHandlers = useParentHandlers;
  }

  /**
   * Sets the output level.
   */
  public void setLevel(String level)
    throws ConfigException
  {
    _level = toLevel(level);
  }

  /**
   * Sets the output level.
   */
  public String getLevel()
  {
    if (_level != null)
      return _level.getName();
    else
      return Level.INFO.getName();
  }

  /**
   * Sets the timestamp.
   */
  public void setTimestamp(String timestamp)
  {
    _timestamp = timestamp;
  }

  /**
   * A format string uses EL expressions and the EL variable `log', which is an
   * instance of LogRecord.
   */
  public void setFormat(RawString format)
  {
    if (_formatter == null) {
      _formatter = new ELFormatter();
    }

    if (_formatter instanceof ELFormatter)
      ((ELFormatter)_formatter).setFormat(format);
  }

  /**
   * A format string uses EL expressions and the EL variable `log', which is an
   * instance of LogRecord.
   */
  public String getFormat()
  {
    if (_formatter != null && _formatter instanceof ELFormatter)
      return ((ELFormatter)_formatter).getFormat();
    else
      return null;
  }

  /**
   * Sets the formatter.
   */
  public void setFormatter(Formatter formatter)
  {
    _formatter = formatter;
  }

  /**
   * Sets the filter.
   */
  public void setFilter(Filter filter)
  {
    _filter = filter;
  }

  /**
   * Returns the tag name.
   */
  public String getTagName()
  {
    return "log-handler";
  }

  /**
   * Initialize the log.
   */
  @PostConstruct
  public void init()
    throws ConfigException
  {
    if (_pathHandler == null) {
      super.init();

      _handler = (Handler) getObject();
    }

    if (_formatter instanceof ELFormatter) {
      ((ELFormatter)_formatter).init();
    }

    if (_timestamp != null) {
      if (_pathHandler != null) {
	_pathHandler.setTimestamp(_timestamp);
      }
      else if (_formatter == null) {
	TimestampFormatter formatter = new TimestampFormatter();
	_formatter = formatter;
	formatter.setTimestamp(_timestamp);
      }
    }
    
    if (_pathHandler != null) {
      _pathHandler.init();

      _handler = _pathHandler;
    }
      
    Logger logger = Logger.getLogger(getName());

    if (! (logger instanceof EnvironmentLogger)) {
      CloseListener listener = new CloseListener(_handler);
	  
      Environment.addClassLoaderListener(listener);
    }
    
    if (_level != null)
      _handler.setLevel(_level);
    else
      _handler.setLevel(Level.INFO);

    if (_formatter != null)
      _handler.setFormatter(_formatter);

    if (_filter != null)
      _handler.setFilter(_filter);

    logger.addHandler(_handler);
  }

  static Level toLevel(String level)
    throws ConfigException
  {
    if (level.equals("off"))
      return Level.OFF;
    else if (level.equals("severe"))
      return Level.SEVERE;
    else if (level.equals("warning"))
      return Level.WARNING;
    else if (level.equals("info"))
      return Level.INFO;
    else if (level.equals("config"))
      return Level.CONFIG;
    else if (level.equals("fine"))
      return Level.FINE;
    else if (level.equals("finer"))
      return Level.FINER;
    else if (level.equals("finest"))
      return Level.FINEST;
    else if (level.equals("all"))
      return Level.ALL;
    else
      throw new ConfigException(L.l("`{0}' is an unknown log level.  Log levels are:\noff - disable logging\nsevere - severe errors only\nwarning - warnings\ninfo - information\nconfig - configuration\nfine - fine debugging\nfiner - finer debugging\nfinest - finest debugging\nall - all debugging", level));
  }
}