/*_############################################################################
  _## 
  _##  SNMP4J - NoLogger.java  
  _## 
  _##  Copyright (C) 2003-2008  Frank Fock and Jochen Katz (SNMP4J.org)
  _##  
  _##  Licensed under the Apache License, Version 2.0 (the "License");
  _##  you may not use this file except in compliance with the License.
  _##  You may obtain a copy of the License at
  _##  
  _##      http://www.apache.org/licenses/LICENSE-2.0
  _##  
  _##  Unless required by applicable law or agreed to in writing, software
  _##  distributed under the License is distributed on an "AS IS" BASIS,
  _##  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  _##  See the License for the specific language governing permissions and
  _##  limitations under the License.
  _##  
  _##########################################################################*/

package org.snmp4j.log;

import java.util.Iterator;
import java.util.Collections;

/**
 * The <code>NoLogger</code> implements a <code>LogAdapter</code> that does
 * not perform any logging.
 *
 * @author Frank Fock
 * @version 1.6.1
 * @since 1.2.1
 */
public class NoLogger implements LogAdapter {

  static final NoLogger instance = new NoLogger();

  private NoLogger() {
  }

  public void debug(Object message) {
  }

  public void error(Object message) {
  }

  public void error(Object message, Throwable t) {
  }

  public void info(Object message) {
  }

  public boolean isDebugEnabled() {
    return false;
  }

  public boolean isInfoEnabled() {
    return false;
  }

  public boolean isWarnEnabled() {
    return false;
  }

  public void warn(Object message) {
  }

  public void fatal(Object message) {
  }

  public void fatal(Object message, Throwable throwable) {
  }

  public void setLogLevel(LogLevel level) {
  }

  public String getName() {
    return "";
  }

  public LogLevel getLogLevel() {
    return LogLevel.OFF;
  }

  public LogLevel getEffectiveLogLevel() {
    return LogLevel.OFF;
  }

  public Iterator getLogHandler() {
    return Collections.EMPTY_LIST.iterator();
  }

}