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.activemq.broker.view;
  
  import java.io.FileWriter;
  import java.io.PrintWriter;
  
  import org.apache.activemq.broker.Broker;
  import org.apache.activemq.broker.BrokerFilter;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Useful base class
   * 
   * 
   */
  public abstract class DotFileInterceptorSupport extends BrokerFilter {
      private final Logger log = LoggerFactory.getLogger(DotFileInterceptorSupport.class);
  
      private String file;
  
      public DotFileInterceptorSupport(Broker next, String file) {
          super(next);
          this.file = file;
      }
  
      protected void generateFile() throws Exception {
          log.debug("Creating DOT file at: {}", file);
          PrintWriter writer = new PrintWriter(new FileWriter(file));
          try {
              generateFile(writer);
          } finally {
              writer.close();
          }
      }
  
      protected abstract void generateFile(PrintWriter writer) throws Exception;
  }
  