heron/schedulers/src/java/org/apache/heron/scheduler/aurora/AuroraContext.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.heron.scheduler.aurora;

import java.io.File;

import org.apache.heron.spi.common.Config;
import org.apache.heron.spi.common.Context;

public final class AuroraContext extends Context {
  public static final String JOB_LINK_TEMPLATE = "heron.scheduler.job.link.template";
  public static final String JOB_TEMPLATE = "heron.scheduler.job.template";
  public static final String JOB_MAX_KILL_ATTEMPTS = "heron.scheduler.job.max.kill.attempts";
  public static final String JOB_KILL_RETRY_INTERVAL_MS =
      "heron.scheduler.job.kill.retry.interval.ms";

  private AuroraContext() {
  }

  public static String getJobLinkTemplate(Config config) {
    return config.getStringValue(JOB_LINK_TEMPLATE);
  }

  public static String getHeronAuroraPath(Config config) {
    return config.getStringValue(JOB_TEMPLATE,
        new File(Context.heronConf(config), "heron.aurora").getPath());
  }

  public static int getJobMaxKillAttempts(Config config) {
    return config.getIntegerValue(JOB_MAX_KILL_ATTEMPTS, 5);
  }

  public static long getJobKillRetryIntervalMs(Config config) {
    return config.getLongValue(JOB_KILL_RETRY_INTERVAL_MS, 2000);
  }
}