/**
    * 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.hadoop.hbase.client;
  
  import org.apache.commons.lang.mutable.MutableBoolean;
  import org.apache.hadoop.hbase.ServerName;
  import org.apache.hadoop.hbase.classification.InterfaceAudience;
  
  @InterfaceAudience.Private
  class FastFailInterceptorContext extends
      RetryingCallerInterceptorContext {
  
    // The variable that indicates whether we were able to connect with the server
    // in the last run
    private MutableBoolean couldNotCommunicateWithServer = new MutableBoolean(
        false);
  
    // The variable which indicates whether this was a retry or the first time
    private boolean didTry = false;
  
    // The failure info that is associated with the machine which we are trying to
    // contact as part of this attempt.
    private FailureInfo fInfo = null;
  
    // Variable indicating that the thread that is currently executing the
    // operation is in a mode where it would retry instead of failing fast, so
    // that we can figure out whether making contact with the server is
    // possible or not.
    private boolean retryDespiteFastFailMode = false;
  
    // The server that would be contacted to successfully complete this operation.
    private ServerName server;
  
    // The number of the retry we are currenty doing.
    private int tries;
  
    public MutableBoolean getCouldNotCommunicateWithServer() {
      return couldNotCommunicateWithServer;
    }
  
    public FailureInfo getFailureInfo() {
      return fInfo;
    }
  
    public ServerName getServer() {
      return server;
    }
  
    public int getTries() {
      return tries;
    }
  
    public boolean didTry() {
      return didTry;
    }
  
    public boolean isRetryDespiteFastFailMode() {
      return retryDespiteFastFailMode;
    }
  
    public void setCouldNotCommunicateWithServer(
        MutableBoolean couldNotCommunicateWithServer) {
      this.couldNotCommunicateWithServer = couldNotCommunicateWithServer;
    }
  
    public void setDidTry(boolean didTry) {
      this.didTry = didTry;
    }
  
    public void setFailureInfo(FailureInfo fInfo) {
      this.fInfo = fInfo;
    }
  
    public void setRetryDespiteFastFailMode(boolean retryDespiteFastFailMode) {
      this.retryDespiteFastFailMode = retryDespiteFastFailMode;
    }
  
    public void setServer(ServerName server) {
      this.server = server;
    }
  
    public void setTries(int tries) {
      this.tries = tries;
    }
 
   public void clear() {
     server = null;
     fInfo = null;
     didTry = false;
     couldNotCommunicateWithServer.setValue(false);
     retryDespiteFastFailMode = false;
     tries = 0;
   }
 
   public FastFailInterceptorContext prepare(RetryingCallable<?> callable) {
     return prepare(callable, 0);
   }
 
   public FastFailInterceptorContext prepare(RetryingCallable<?> callable,
       int tries) {
     if (callable instanceof RegionServerCallable) {
       RegionServerCallable<?> retryingCallable = (RegionServerCallable<?>) callable;
       server = retryingCallable.getLocation().getServerName();
     }
     this.tries = tries;
     return this;
   }
 }