org.apache.pulsar.common.util.NamespaceBundleStatsComparator Maven / Gradle / Ivy
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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.pulsar.common.util;
import java.io.Serializable;
import java.util.Comparator;
import java.util.Map;
import org.apache.pulsar.shade.org.apache.pulsar.policies.data.loadbalancer.NamespaceBundleStats;
import org.apache.pulsar.shade.org.apache.pulsar.policies.data.loadbalancer.SystemResourceUsage.ResourceType;
/**
*/
public class NamespaceBundleStatsComparator implements Comparator, Serializable {
Map map;
ResourceType resType;
public NamespaceBundleStatsComparator(Map map, ResourceType resType) {
this.map = map;
this.resType = resType;
}
// sort in reverse order, maximum loaded should be on top
public int compare(String a, String b) {
int result = 0;
if (this.resType == ResourceType.CPU) {
result = map.get(a).compareByMsgRate(map.get(b));
} else if (this.resType == ResourceType.Memory) {
result = map.get(a).compareByTopicConnections(map.get(b));
} else if (this.resType == ResourceType.BandwidthIn) {
result = map.get(a).compareByBandwidthIn(map.get(b));
} else if (this.resType == ResourceType.BandwidthOut) {
result = map.get(a).compareByBandwidthOut(map.get(b));
} else {
result = map.get(a).compareTo(map.get(b));
}
if (result > 0) {
return -1;
} else {
return 1;
}
}
}