Runtime.java

// Copyright 2016 Twitter. All rights reserved.
//
// Licensed 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 com.twitter.heron.scheduler.utils;

import java.net.URI;
import java.util.Properties;

import com.twitter.heron.api.generated.TopologyAPI;
import com.twitter.heron.spi.common.Config;
import com.twitter.heron.spi.common.Key;
import com.twitter.heron.spi.scheduler.ILauncher;
import com.twitter.heron.spi.statemgr.SchedulerStateManagerAdaptor;

public final class Runtime {


  private Runtime() {
  }

  public static String topologyId(Config runtime) {
    return runtime.getStringValue(Key.TOPOLOGY_ID);
  }

  public static String topologyName(Config runtime) {
    return runtime.getStringValue(Key.TOPOLOGY_NAME);
  }

  public static String topologyClassPath(Config runtime) {
    return runtime.getStringValue(Key.TOPOLOGY_CLASSPATH);
  }

  public static TopologyAPI.Topology topology(Config runtime) {
    return (TopologyAPI.Topology) runtime.get(Key.TOPOLOGY_DEFINITION);
  }

  public static URI topologyPackageUri(Config cfg) {
    return (URI) cfg.get(Key.TOPOLOGY_PACKAGE_URI);
  }

  public static SchedulerStateManagerAdaptor schedulerStateManagerAdaptor(Config runtime) {
    return (SchedulerStateManagerAdaptor) runtime.get(Key.SCHEDULER_STATE_MANAGER_ADAPTOR);
  }

  public static ILauncher launcherClassInstance(Config runtime) {
    return (ILauncher) runtime.get(Key.LAUNCHER_CLASS_INSTANCE);
  }

  public static Shutdown schedulerShutdown(Config runtime) {
    return (Shutdown) runtime.get(Key.SCHEDULER_SHUTDOWN);
  }

  public static String componentRamMap(Config runtime) {
    return runtime.getStringValue(Key.COMPONENT_RAMMAP);
  }

  public static String componentJvmOpts(Config runtime) {
    return runtime.getStringValue(Key.COMPONENT_JVM_OPTS_IN_BASE64);
  }

  public static String instanceJvmOpts(Config runtime) {
    return runtime.getStringValue(Key.INSTANCE_JVM_OPTS_IN_BASE64);
  }

  public static Long numContainers(Config runtime) {
    return runtime.getLongValue(Key.NUM_CONTAINERS);
  }

  public static Properties schedulerProperties(Config runtime) {
    return (Properties) runtime.get(Key.SCHEDULER_PROPERTIES);
  }
}