| /** |
| * 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; |
| } |
| } |