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/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds licenses this file
 * to you 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.jclouds.logging;

import com.google.common.base.Throwables;

/**
 * Logger that doesn't do anything.
 * 
 * Useful to get baseline performance unaffected by logging.
 * 
 * @author Adrian Cole
 * 
 */
public class NullLogger implements Logger {

   public void debug(String message, Object... args) {

   }

   public void error(String message, Object... args) {
      System.err.printf(message + "%n", args);
   }

   public void error(Throwable throwable, String message, Object... args) {
      System.err.printf(message, args);
      System.err.printf("%n%s", Throwables.getStackTraceAsString(throwable));
   }

   public String getCategory() {

      return null;
   }

   public void info(String message, Object... args) {

   }

   public boolean isDebugEnabled() {

      return false;
   }

   public boolean isErrorEnabled() {

      return true;
   }

   public boolean isInfoEnabled() {

      return false;
   }

   public boolean isTraceEnabled() {

      return false;
   }

   public boolean isWarnEnabled() {

      return false;
   }

   public void trace(String message, Object... args) {

   }

   public void warn(String message, Object... args) {

   }

   public void warn(Throwable throwable, String message, Object... args) {

   }
}