hadoop NodeUsageRanges 源码
haddop NodeUsageRanges 代码
文件路径：/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/utils/NodeUsageRanges.java
/**
* 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.hadoop.yarn.sls.utils;
import java.util.LinkedHashSet;
import java.util.Set;
public final class NodeUsageRanges {
private NodeUsageRanges() {}
/**
* Class to store the keyword, lower-limit and upper-limit of a resource
* within the specified lower-limit (inclusive) and upper-limit (inclusive).
*/
public static class Range {
private String keyword;
private float lowerLimit, upperLimit;
public Range(String keyword, float lowerLimit, float upperLimit) {
this.keyword = keyword;
this.lowerLimit = lowerLimit;
this.upperLimit = upperLimit;
}
public String getKeyword() {
return keyword;
}
public float getLowerLimit() {
return lowerLimit;
}
public float getUpperLimit() {
return upperLimit;
}
}
private static final Set<Range> RANGES;
static {
RANGES = new LinkedHashSet<>();
RANGES.add(new Range("unused", 0, 0));
RANGES.add(new Range("1to19pctUsed", 1, 19));
RANGES.add(new Range("20to39pctUsed", 20, 39));
RANGES.add(new Range("40to59pctUsed", 40, 59));
RANGES.add(new Range("60to79pctUsed", 60, 79));
RANGES.add(new Range("80to99pctUsed", 80, 99));
RANGES.add(new Range("full", 100, 100));
}
public static Set<Range> getRanges() {
return RANGES;
}
}
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