org.apache.storm.utils.TupleUtils Maven / Gradle / Ivy
/**
* 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.utils;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.apache.storm.Config;
import org.apache.storm.Constants;
import org.apache.storm.tuple.Tuple;
public final class TupleUtils {
private TupleUtils() {
// No instantiation
}
public static boolean isTick(Tuple tuple) {
return tuple != null
&& Constants.SYSTEM_COMPONENT_ID.equals(tuple.getSourceComponent())
&& Constants.SYSTEM_TICK_STREAM_ID.equals(tuple.getSourceStreamId());
}
public static int listHashCode(List alist) {
if (alist == null) {
return 1;
} else {
return Arrays.deepHashCode(alist.toArray());
}
}
public static Map putTickFrequencyIntoComponentConfig(Map conf,
int tickFreqSecs) {
if (conf != null && tickFreqSecs > 0) {
conf.put(Config.TOPOLOGY_TICK_TUPLE_FREQ_SECS, tickFreqSecs);
}
return conf;
}
}