hadoop StringKeyConverter 源码
haddop StringKeyConverter 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-common/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/StringKeyConverter.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.storage.common;
/**
* Encodes and decodes column names / row keys which are merely strings.
* Column prefixes are not part of the column name passed for encoding. It is
* added later, if required in the associated ColumnPrefix implementations.
*/
public final class StringKeyConverter implements KeyConverter<String> {
public StringKeyConverter() {
}
/*
* (non-Javadoc)
*
* @see
* org.apache.hadoop.yarn.server.timelineservice.storage.common.KeyConverter
* #encode(java.lang.Object)
*/
@Override
public byte[] encode(String key) {
return Separator.encode(key, Separator.SPACE, Separator.TAB);
}
/*
* (non-Javadoc)
*
* @see
* org.apache.hadoop.yarn.server.timelineservice.storage.common.KeyConverter
* #decode(byte[])
*/
@Override
public String decode(byte[] bytes) {
return Separator.decode(bytes, Separator.TAB, Separator.SPACE);
}
}
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