hadoop ConfigUtil 源码
haddop ConfigUtil 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ConfigUtil.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.mapred.nativetask.util;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.hadoop.thirdparty.com.google.common.base.Charsets;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.classification.InterfaceAudience;
@InterfaceAudience.Private
public abstract class ConfigUtil {
public static byte[][] toBytes(Configuration conf) {
List<byte[]> nativeConfigs = new ArrayList<byte[]>();
for (Map.Entry<String, String> e : conf) {
nativeConfigs.add(e.getKey().getBytes(Charsets.UTF_8));
nativeConfigs.add(e.getValue().getBytes(Charsets.UTF_8));
}
return nativeConfigs.toArray(new byte[nativeConfigs.size()][]);
}
public static String booleansToString(boolean[] value) {
StringBuilder sb = new StringBuilder();
for (boolean b: value) {
sb.append(b ? 1 : 0);
}
return sb.toString();
}
}
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