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/**
 * 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.hdfs.protocol;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import static org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix.long2String;

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class DSQuotaExceededException extends QuotaExceededException {
  protected static final long serialVersionUID = 1L;

  public DSQuotaExceededException() {}

  public DSQuotaExceededException(String msg) {
    super(msg);
  }

  public DSQuotaExceededException(long quota, long count) {
    super(quota, count);
  }

  @Override
  public String getMessage() {
    String msg = super.getMessage();
    if (msg == null) {
      return "The DiskSpace quota" + (pathName==null?"": " of " + pathName)
          + " is exceeded: quota = " + quota + " B = " + long2String(quota, "B", 2)
          + " but diskspace consumed = " + count + " B = " + long2String(count, "B", 2);
    } else {
      return msg;
    }
  }
}