hadoop AvroArrayUtils 源码
haddop AvroArrayUtils 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/AvroArrayUtils.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.mapreduce.jobhistory;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericData;
public class AvroArrayUtils {
private static final Schema ARRAY_INT
= Schema.createArray(Schema.create(Schema.Type.INT));
static public List<Integer> NULL_PROGRESS_SPLITS_ARRAY
= new GenericData.Array<Integer>(0, ARRAY_INT);
public static List<Integer>
toAvro(int values[]) {
List<Integer> result = new ArrayList<Integer>(values.length);
for (int i = 0; i < values.length; ++i) {
result.add(values[i]);
}
return result;
}
public static int[] fromAvro(List<Integer> avro) {
int[] result = new int[avro.size()];
int i = 0;
for (Iterator<Integer> iter = avro.iterator(); iter.hasNext(); ++i) {
result[i] = iter.next();
}
return result;
}
}
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