// 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 com.twitter.heron.api.generated.TopologyAPI;
import com.twitter.heron.common.basics.PackageType;
import com.twitter.heron.spi.common.Config;
import com.twitter.heron.spi.common.ConfigLoader;
import com.twitter.heron.spi.common.Key;
/**
* For loading scheduler config
*/
public final class SchedulerConfigUtils {
private SchedulerConfigUtils() {
}
/**
* Load the topology config
*
* @param topologyBinaryFile, name of the user submitted topology jar/tar/pex file
* @param topologyDefnFile, name of the topology defintion file
* @param topology, proto in memory version of topology definition
* @return config, the topology config
*/
private static Config topologyConfigs(String topologyBinaryFile,
String topologyDefnFile, TopologyAPI.Topology topology) {
PackageType packageType = PackageType.getPackageType(topologyBinaryFile);
return Config.newBuilder()
.put(Key.TOPOLOGY_ID, topology.getId())
.put(Key.TOPOLOGY_NAME, topology.getName())
.put(Key.TOPOLOGY_DEFINITION_FILE, topologyDefnFile)
.put(Key.TOPOLOGY_BINARY_FILE, topologyBinaryFile)
.put(Key.TOPOLOGY_PACKAGE_TYPE, packageType)
.build();
}
/**
* Load the config parameters from the command line
*
* @param cluster, name of the cluster
* @param role, user role
* @param environ, user provided environment/tag
* @return config, the command line config
*/
private static Config commandLineConfigs(String cluster, String role,
String environ, Boolean verbose) {
return Config.newBuilder()
.put(Key.CLUSTER, cluster)
.put(Key.ROLE, role)
.put(Key.ENVIRON, environ)
.put(Key.VERBOSE, verbose)
.build();
}
// build the config by expanding all the variables
public static Config loadConfig(
String cluster,
String role,
String environ,
String topologyBinaryFile,
String topologyDefnFile,
Boolean verbose,
TopologyAPI.Topology topology) {
return Config.toClusterMode(
Config.newBuilder()
.putAll(ConfigLoader.loadClusterConfig())
.putAll(commandLineConfigs(cluster, role, environ, verbose))
.putAll(topologyConfigs(topologyBinaryFile, topologyDefnFile, topology))
.build());
}
}