hadoop FlowRunColumn 源码

haddop FlowRunColumn 代码

文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-common/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/flow/FlowRunColumn.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.yarn.server.timelineservice.storage.flow;

import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.Column;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.ColumnFamily;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.GenericConverter;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.HBaseTimelineSchemaUtils;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.LongConverter;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.Separator;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.ValueConverter;

/**
 * Identifies fully qualified columns for the {@link FlowRunTable}.
 */
public enum FlowRunColumn implements Column<FlowRunTable> {

  /**
   * When the flow was started. This is the minimum of currently known
   * application start times.
   */
  MIN_START_TIME(FlowRunColumnFamily.INFO, "min_start_time",
      AggregationOperation.GLOBAL_MIN, new LongConverter()),

  /**
   * When the flow ended. This is the maximum of currently known application end
   * times.
   */
  MAX_END_TIME(FlowRunColumnFamily.INFO, "max_end_time",
      AggregationOperation.GLOBAL_MAX, new LongConverter()),

  /**
   * The version of the flow that this flow belongs to.
   */
  FLOW_VERSION(FlowRunColumnFamily.INFO, "flow_version", null);

  private final ColumnFamily<FlowRunTable> columnFamily;
  private final String columnQualifier;
  private final byte[] columnQualifierBytes;
  private final AggregationOperation aggOp;
  private final ValueConverter valueConverter;

  private FlowRunColumn(ColumnFamily<FlowRunTable> columnFamily,
      String columnQualifier, AggregationOperation aggOp) {
    this(columnFamily, columnQualifier, aggOp,
        GenericConverter.getInstance());
  }

  private FlowRunColumn(ColumnFamily<FlowRunTable> columnFamily,
      String columnQualifier, AggregationOperation aggOp,
      ValueConverter converter) {
    this.columnFamily = columnFamily;
    this.columnQualifier = columnQualifier;
    this.aggOp = aggOp;
    // Future-proof by ensuring the right column prefix hygiene.
    this.columnQualifierBytes = Bytes.toBytes(Separator.SPACE
        .encode(columnQualifier));
    this.valueConverter = converter;
  }

  /**
   * @return the column name value
   */
  private String getColumnQualifier() {
    return columnQualifier;
  }

  @Override
  public byte[] getColumnQualifierBytes() {
    return columnQualifierBytes.clone();
  }

  @Override
  public byte[] getColumnFamilyBytes() {
    return columnFamily.getBytes();
  }

  public AggregationOperation getAggregationOperation() {
    return aggOp;
  }

  @Override
  public ValueConverter getValueConverter() {
    return valueConverter;
  }

  @Override
  public Attribute[] getCombinedAttrsWithAggr(Attribute... attributes) {
    return HBaseTimelineSchemaUtils.combineAttributes(attributes, aggOp);
  }

  @Override
  public boolean supplementCellTimestamp() {
    return true;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AggregationCompactionDimension 源码

hadoop AggregationOperation 源码

hadoop Attribute 源码

hadoop FlowActivityColumnFamily 源码

hadoop FlowActivityColumnPrefix 源码

hadoop FlowActivityRowKey 源码

hadoop FlowActivityRowKeyPrefix 源码

hadoop FlowActivityTable 源码

hadoop FlowRunColumnFamily 源码

hadoop FlowRunColumnPrefix 源码