/*
    * 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.basepom.mojo.dvc;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  import static java.lang.String.format;
  
  import java.util.concurrent.locks.Lock;
  import java.util.concurrent.locks.ReentrantLock;
  
  import org.apache.maven.shared.utils.logging.MessageBuilder;
  import org.apache.maven.shared.utils.logging.MessageUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public final class PluginLog {
  
      private final Logger logger;
      private final Lock instanceLock = new ReentrantLock();
  
      public PluginLog(final Class<?> clazz) {
          checkNotNull(clazz, "clazz is null");
          this.logger = LoggerFactory.getLogger(clazz);
      }
  
      public void debug(final String fmt, final Object... args) {
          checkNotNull(fmt, "fmt is null");
          try {
              instanceLock.lock();
              logger.debug(format(fmt, args));
          } finally {
              instanceLock.unlock();
          }
      }
  
      public void debug(final Throwable t, final String fmt, final Object... args) {
          checkNotNull(fmt, "fmt is null");
          checkNotNull(t, "t is null");
          try {
              instanceLock.lock();
              logger.debug(format(fmt, args), t);
          } finally {
              instanceLock.unlock();
          }
      }
  
      public void info(final String fmt, final Object... args) {
          checkNotNull(fmt, "fmt is null");
          try {
              instanceLock.lock();
              logger.info(format(fmt, args));
          } finally {
              instanceLock.unlock();
          }
      }
  
      public void info(final Throwable t, final String fmt, final Object... args) {
          checkNotNull(fmt, "fmt is null");
          checkNotNull(t, "t is null");
          try {
              instanceLock.lock();
              logger.info(format(fmt, args), t);
          } finally {
              instanceLock.unlock();
          }
      }
  
      public void warn(final String fmt, final Object... args) {
          checkNotNull(fmt, "fmt is null");
          MessageBuilder mb = MessageUtils.buffer();
          try {
              instanceLock.lock();
              logger.warn(mb.warning(format(fmt, args)).toString());
          } finally {
              instanceLock.unlock();
          }
      }
  
      public void warn(final Throwable t, final String fmt, final Object... args) {
          checkNotNull(fmt, "fmt is null");
          checkNotNull(t, "t is null");
          MessageBuilder mb = MessageUtils.buffer();
          try {
              instanceLock.lock();
              logger.warn(mb.warning(format(fmt, args)).toString(), t);
          } finally {
              instanceLock.unlock();
         }
     }
 
     public void error(final String fmt, final Object... args) {
         checkNotNull(fmt, "fmt is null");
         MessageBuilder mb = MessageUtils.buffer();
         try {
             instanceLock.lock();
             logger.error(mb.failure(format(fmt, args)).toString());
         } finally {
             instanceLock.unlock();
         }
     }
 
     public void error(final Throwable t, final String fmt, final Object... args) {
         checkNotNull(fmt, "fmt is null");
         checkNotNull(t, "t is null");
         MessageBuilder mb = MessageUtils.buffer();
         try {
             instanceLock.lock();
             logger.error(mb.failure(format(fmt, args)).toString(), t);
         } finally {
             instanceLock.unlock();
         }
     }
 
     public void report(final boolean quiet, final String fmt, final Object... args) {
         if (quiet) {
             debug(fmt, args);
         } else {
             info(fmt, args);
         }
     }
 }