GcsStorageStatistics.java

/*
 * 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.fs.gs;

import java.util.Iterator;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.statistics.IOStatistics;
import org.apache.hadoop.fs.statistics.impl.StorageStatisticsFromIOStatistics;

@InterfaceAudience.Private
@InterfaceStability.Evolving
class GcsStorageStatistics
    extends StorageStatisticsFromIOStatistics {
  static final String NAME = "GhfsStorageStatistics";

  GcsStorageStatistics(final IOStatistics ioStatistics) {
    super(NAME, Constants.SCHEME, ioStatistics);
  }

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    for (Iterator<LongStatistic> it = this.getLongStatistics(); it.hasNext();) {
      LongStatistic statistic = it.next();

      if (sb.length() != 0) {
        sb.append(", ");
      }
      sb.append(String.format("%s=%s", statistic.getName(), statistic.getValue()));
    }

    return String.format("[%s]", sb);
  }
}