content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF 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.apache.chemistry.opencmis.server.async.impl;
  
  import java.io.IOException;
  
  import javax.servlet.AsyncEvent;
  import javax.servlet.AsyncListener;
  import javax.servlet.annotation.WebListener;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Simple listener for asynchronous events (for debugging and error messages).
   */
  @WebListener
  public class SimpleCmisAsyncListener implements AsyncListener {
  
      private static final Logger LOG = LoggerFactory.getLogger(SimpleCmisAsyncListener.class);
  
      @Override
      public void onComplete(AsyncEvent asyncEvent) throws IOException {
          if (LOG.isDebugEnabled()) {
              LOG.debug("Request complete.");
          }
      }
  
      @Override
      public void onError(AsyncEvent asyncEvent) throws IOException {
          LOG.error("Request failed!", asyncEvent.getThrowable());
      }
  
      @Override
      public void onStartAsync(AsyncEvent asyncEvent) throws IOException {
          if (LOG.isDebugEnabled()) {
              LOG.debug("Request starts.");
          }
      }
  
      @Override
      public void onTimeout(AsyncEvent asyncEvent) throws IOException {
          LOG.error("Request timed out!", asyncEvent.getThrowable());
      }
  }
  