hadoop TimelinePrefixFilter 源码
haddop TimelinePrefixFilter 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/reader/filter/TimelinePrefixFilter.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.server.timelineservice.reader.filter;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
/**
* Filter class which represents filter to be applied based on prefixes.
* Prefixes can either match or not match.
*/
@Private
@Unstable
public class TimelinePrefixFilter extends TimelineFilter {
private TimelineCompareOp compareOp;
private String prefix;
public TimelinePrefixFilter() {
}
public TimelinePrefixFilter(TimelineCompareOp op, String prefix) {
this.prefix = prefix;
if (op != TimelineCompareOp.EQUAL && op != TimelineCompareOp.NOT_EQUAL) {
throw new IllegalArgumentException("CompareOp for prefix filter should " +
"be EQUAL or NOT_EQUAL");
}
this.compareOp = op;
}
@Override
public TimelineFilterType getFilterType() {
return TimelineFilterType.PREFIX;
}
public String getPrefix() {
return prefix;
}
public TimelineCompareOp getCompareOp() {
return compareOp;
}
@Override
public String toString() {
return String.format("%s (%s %s)",
this.getClass().getSimpleName(), this.compareOp.name(), this.prefix);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((compareOp == null) ? 0 : compareOp.hashCode());
result = prime * result + ((prefix == null) ? 0 : prefix.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
TimelinePrefixFilter other = (TimelinePrefixFilter) obj;
if (compareOp != other.compareOp) {
return false;
}
if (prefix == null) {
if (other.prefix != null) {
return false;
}
} else if (!prefix.equals(other.prefix)){
return false;
}
return true;
}
}
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