org.apache.hadoop.hive.ql.io.parquet.writable.BinaryWritable Maven / Gradle / Ivy
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* 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.hive.ql.io.parquet.writable;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import org.apache.hadoop.io.Writable;
import org.apache.parquet.io.api.Binary;
/**
*
* A Wrapper to support constructor with Binary and String
*
* TODO : remove it, and call BytesWritable with the getBytes() in HIVE-6366
*
*/
public class BinaryWritable implements Writable {
private Binary binary;
public BinaryWritable(final Binary binary) {
this.binary = binary;
}
public Binary getBinary() {
return binary;
}
public byte[] getBytes() {
return binary.getBytes();
}
public String getString() {
return binary.toStringUsingUTF8();
}
@Override
public void readFields(DataInput input) throws IOException {
byte[] bytes = new byte[input.readInt()];
input.readFully(bytes);
binary = Binary.fromConstantByteArray(bytes);
}
@Override
public void write(DataOutput output) throws IOException {
output.writeInt(binary.length());
binary.writeTo(output);
}
@Override
public int hashCode() {
return binary == null ? 0 : binary.hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj instanceof BinaryWritable) {
final BinaryWritable other = (BinaryWritable)obj;
return binary.equals(other.binary);
}
return false;
}
public static class DicBinaryWritable extends BinaryWritable {
private final String string;
public DicBinaryWritable(Binary binary, String string) {
super(binary);
this.string = string;
}
@Override
public String getString() {
return string;
}
}
}