DAAL.WriteableData.java Source code

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Here is the source code for DAAL.WriteableData.java

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/* file: WriteableData.java */
/*
 //  Copyright(C) 2014-2015 Intel Corporation. All Rights Reserved.
 //
 //  The source code, information  and  material ("Material") contained herein is
 //  owned  by Intel Corporation or its suppliers or licensors, and title to such
 //  Material remains  with Intel Corporation  or its suppliers or licensors. The
 //  Material  contains proprietary information  of  Intel or  its  suppliers and
 //  licensors. The  Material is protected by worldwide copyright laws and treaty
 //  provisions. No  part  of  the  Material  may  be  used,  copied, reproduced,
 //  modified, published, uploaded, posted, transmitted, distributed or disclosed
 //  in any way  without Intel's  prior  express written  permission. No  license
 //  under  any patent, copyright  or  other intellectual property rights  in the
 //  Material  is  granted  to  or  conferred  upon  you,  either  expressly,  by
 //  implication, inducement,  estoppel or  otherwise.  Any  license  under  such
 //  intellectual  property  rights must  be express  and  approved  by  Intel in
 //  writing.
 //
 //  *Third Party trademarks are the property of their respective owners.
 //
 //  Unless otherwise  agreed  by Intel  in writing, you may not remove  or alter
 //  this  notice or  any other notice embedded  in Materials by Intel or Intel's
 //  suppliers or licensors in any way.
 */

package DAAL;

import org.apache.hadoop.io.*;
import java.io.*;
import com.intel.daal.services.*;
import com.intel.daal.data_management.data.*;

/**
 * @brief Model is the base class for classes that represent models, such as
 * a linear regression or support vector machine (SVM) classifier.
 */
public class WriteableData implements Writable {

    protected int id;
    protected SerializableBase value;

    public WriteableData() {
        this.id = 0;
        this.value = null;
    }

    public WriteableData(SerializableBase val) {
        this.id = 0;
        this.value = val;
        val.pack();
    }

    public WriteableData(int id, SerializableBase val) {
        this.id = id;
        this.value = val;
        val.pack();
    }

    public int getId() {
        return this.id;
    }

    public ContextClient getObject(DaalContext context) {
        this.value.unpack(context);
        return this.value;
    }

    public void write(DataOutput out) throws IOException {
        ByteArrayOutputStream outputByteStream = new ByteArrayOutputStream();
        ObjectOutputStream outputStream = new ObjectOutputStream(outputByteStream);

        outputStream.writeObject(value);

        byte[] buffer = outputByteStream.toByteArray();

        out.writeInt(buffer.length);
        out.write(buffer);

        out.writeInt(id);
    }

    public void readFields(DataInput in) throws IOException {
        int length = in.readInt();

        byte[] buffer = new byte[length];
        in.readFully(buffer);

        ByteArrayInputStream inputByteStream = new ByteArrayInputStream(buffer);
        ObjectInputStream inputStream = new ObjectInputStream(inputByteStream);

        try {
            this.value = (SerializableBase) inputStream.readObject();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            this.value = null;
        }

        id = in.readInt();
    }
}