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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.flume.instrumentation;

import org.apache.commons.lang.ArrayUtils;

public class SourceCounter extends MonitoredCounterGroup implements
    SourceCounterMBean {

  private static final String COUNTER_EVENTS_RECEIVED =
      "src.events.received";
  private static final String COUNTER_EVENTS_ACCEPTED =
      "src.events.accepted";

  private static final String COUNTER_APPEND_RECEIVED =
      "src.append.received";
  private static final String COUNTER_APPEND_ACCEPTED =
      "src.append.accepted";

  private static final String COUNTER_APPEND_BATCH_RECEIVED =
      "src.append-batch.received";
  private static final String COUNTER_APPEND_BATCH_ACCEPTED =
      "src.append-batch.accepted";
  
  private static final String COUNTER_OPEN_CONNECTION_COUNT =
          "src.open-connection.count";

  private static final String[] ATTRIBUTES = {
    COUNTER_EVENTS_RECEIVED, COUNTER_EVENTS_ACCEPTED,
    COUNTER_APPEND_RECEIVED, COUNTER_APPEND_ACCEPTED,
    COUNTER_APPEND_BATCH_RECEIVED, COUNTER_APPEND_BATCH_ACCEPTED,
    COUNTER_OPEN_CONNECTION_COUNT
  };

  public SourceCounter(String name) {
    super(MonitoredCounterGroup.Type.SOURCE, name, ATTRIBUTES);
  }

  public SourceCounter(String name, String[] attributes) {
    super(Type.SOURCE, name,
        (String[]) ArrayUtils.addAll(attributes,ATTRIBUTES));
  }

  @Override
  public long getEventReceivedCount() {
    return get(COUNTER_EVENTS_RECEIVED);
  }

  public long incrementEventReceivedCount() {
    return increment(COUNTER_EVENTS_RECEIVED);
  }

  public long addToEventReceivedCount(long delta) {
    return addAndGet(COUNTER_EVENTS_RECEIVED, delta);
  }

  @Override
  public long getEventAcceptedCount() {
    return get(COUNTER_EVENTS_ACCEPTED);
  }

  public long incrementEventAcceptedCount() {
    return increment(COUNTER_EVENTS_ACCEPTED);
  }

  public long addToEventAcceptedCount(long delta) {
    return addAndGet(COUNTER_EVENTS_ACCEPTED, delta);
  }

  @Override
  public long getAppendReceivedCount() {
    return get(COUNTER_APPEND_RECEIVED);
  }

  public long incrementAppendReceivedCount() {
    return increment(COUNTER_APPEND_RECEIVED);
  }

  @Override
  public long getAppendAcceptedCount() {
    return get(COUNTER_APPEND_ACCEPTED);
  }

  public long incrementAppendAcceptedCount() {
    return increment(COUNTER_APPEND_ACCEPTED);
  }

  @Override
  public long getAppendBatchReceivedCount() {
    return get(COUNTER_APPEND_BATCH_RECEIVED);
  }

  public long incrementAppendBatchReceivedCount() {
    return increment(COUNTER_APPEND_BATCH_RECEIVED);
  }

  @Override
  public long getAppendBatchAcceptedCount() {
    return get(COUNTER_APPEND_BATCH_ACCEPTED);
  }

  public long incrementAppendBatchAcceptedCount() {
    return increment(COUNTER_APPEND_BATCH_ACCEPTED);
  }

  public long getOpenConnectionCount() {
    return get(COUNTER_OPEN_CONNECTION_COUNT);
  }

  public void setOpenConnectionCount(long openConnectionCount) {
    set(COUNTER_OPEN_CONNECTION_COUNT, openConnectionCount);
  }
}