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BaseConfigurationDeclarer.java
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BaseConfigurationDeclarer.java
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/**
* 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.storm.topology;
import org.apache.storm.Config;
import java.util.HashMap;
import java.util.Map;
import org.apache.storm.utils.Utils;
public abstract class BaseConfigurationDeclarer<T extends ComponentConfigurationDeclarer> implements ComponentConfigurationDeclarer<T> {
private Map conf = Utils.readStormConfig();
@Override
public T addConfiguration(String config, Object value) {
Map<String, Object> configMap = new HashMap<>();
configMap.put(config, value);
return addConfigurations(configMap);
}
@Override
public T setDebug(boolean debug) {
return addConfiguration(Config.TOPOLOGY_DEBUG, debug);
}
@Override
public T setMaxTaskParallelism(Number val) {
if(val!=null) val = val.intValue();
return addConfiguration(Config.TOPOLOGY_MAX_TASK_PARALLELISM, val);
}
@Override
public T setMaxSpoutPending(Number val) {
if(val!=null) val = val.intValue();
return addConfiguration(Config.TOPOLOGY_MAX_SPOUT_PENDING, val);
}
@Override
public T setNumTasks(Number val) {
if (val != null) val = val.intValue();
return addConfiguration(Config.TOPOLOGY_TASKS, val);
}
@Override
public T setMemoryLoad(Number onHeap) {
return setMemoryLoad(onHeap, Utils.getDouble(conf.get(Config.TOPOLOGY_COMPONENT_RESOURCES_OFFHEAP_MEMORY_MB)));
}
@Override
public T setMemoryLoad(Number onHeap, Number offHeap) {
T ret = null;
if (onHeap != null) {
onHeap = onHeap.doubleValue();
ret = addConfiguration(Config.TOPOLOGY_COMPONENT_RESOURCES_ONHEAP_MEMORY_MB, onHeap);
}
if (offHeap!=null) {
offHeap = offHeap.doubleValue();
ret = addConfiguration(Config.TOPOLOGY_COMPONENT_RESOURCES_OFFHEAP_MEMORY_MB, offHeap);
}
return ret;
}
@Override
public T setCPULoad(Number amount) {
if(amount != null) {
return addConfiguration(Config.TOPOLOGY_COMPONENT_CPU_PCORE_PERCENT, amount);
}
return null;
}
}