tez-plugins/tez-protobuf-history-plugin/src/main/java/org/apache/tez/dag/history/logging/proto/TezProtoLoggers.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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.tez.dag.history.logging.proto;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.tez.dag.api.TezConfiguration;
import org.apache.tez.dag.history.logging.proto.HistoryLoggerProtos.HistoryEventProto;
import org.apache.tez.dag.history.logging.proto.HistoryLoggerProtos.ManifestEntryProto;

/**
 * Helper class to create the logger for tez, we would use this to read the events outside
 * tez and hence isolating the configuration and the paths in this.
 */
public class TezProtoLoggers {
  private DatePartitionedLogger<HistoryEventProto> appEventsLogger;
  private DatePartitionedLogger<HistoryEventProto> dagEventsLogger;
  private DatePartitionedLogger<ManifestEntryProto> manifestEventsLogger;

  public boolean setup(Configuration conf, Clock clock) throws IOException {
    String logDir = conf.get(TezConfiguration.TEZ_HISTORY_LOGGING_PROTO_BASE_DIR);
    if (logDir == null) {
      return false;
    }
    appEventsLogger = new DatePartitionedLogger<>(HistoryEventProto.PARSER,
        new Path(logDir, "app_data"), conf, clock);
    dagEventsLogger = new DatePartitionedLogger<>(HistoryEventProto.PARSER,
        new Path(logDir, "dag_data"), conf, clock);
    manifestEventsLogger = new DatePartitionedLogger<>(ManifestEntryProto.PARSER,
        new Path(logDir, "dag_meta"), conf, clock);
    return true;
  }

  public DatePartitionedLogger<HistoryEventProto> getAppEventsLogger() {
    return appEventsLogger;
  }

  public DatePartitionedLogger<HistoryEventProto> getDagEventsLogger() {
    return dagEventsLogger;
  }

  public DatePartitionedLogger<ManifestEntryProto> getManifestEventsLogger() {
    return manifestEventsLogger;
  }
}