org.elasticsearch.hadoop.mr.SafeWritableConverter Maven / Gradle / Ivy
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* this work for additional information regarding copyright
* ownership. Elasticsearch 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
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*/
package org.elasticsearch.hadoop.mr;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.Text;
import org.elasticsearch.hadoop.util.BytesArray;
/**
*
*/
class SafeWritableConverter {
public SafeWritableConverter() {
Text.class.getName(); // force class to be loaded
}
public void invoke(Object from, BytesArray to) {
// handle common cases
if (from instanceof Text) {
Text t = (Text) from;
to.bytes(t.getBytes(), t.getLength());
}
if (from instanceof BytesWritable) {
BytesWritable b = (BytesWritable) from;
to.bytes(b.getBytes(), b.getLength());
}
}
}