io.aos.hdfs.WritableTestBase.java Source code

Introduction

Here is the source code for io.aos.hdfs.WritableTestBase.java

Source

/****************************************************************
 * Licensed to the AOS Community (AOS) under one or more        *
 * contributor license agreements.  See the NOTICE file         *
 * distributed with this work for additional information        *
 * regarding copyright ownership.  The AOS 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 io.aos.hdfs;

// == WritableTestBase
// == WritableTestBase-Deserialize
import java.io.*;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.util.StringUtils;

public class WritableTestBase {

    // vv WritableTestBase
    public static byte[] serialize(Writable writable) throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        DataOutputStream dataOut = new DataOutputStream(out);
        writable.write(dataOut);
        dataOut.close();
        return out.toByteArray();
    }
    // ^^ WritableTestBase

    // vv WritableTestBase-Deserialize
    public static byte[] deserialize(Writable writable, byte[] bytes) throws IOException {
        ByteArrayInputStream in = new ByteArrayInputStream(bytes);
        DataInputStream dataIn = new DataInputStream(in);
        writable.readFields(dataIn);
        dataIn.close();
        return bytes;
    }
    // ^^ WritableTestBase-Deserialize

    public static String serializeToString(Writable src) throws IOException {
        return StringUtils.byteToHexString(serialize(src));
    }

    public static String writeTo(Writable src, Writable dest) throws IOException {
        byte[] data = deserialize(dest, serialize(src));
        return StringUtils.byteToHexString(data);
    }

}