net.smartcosmos.util.mapper.DoubleMapper Maven / Gradle / Ivy

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package net.smartcosmos.util.mapper;

/*
 * *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*
 * SMART COSMOS Platform Core SDK
 * ===============================================================================
 * Copyright (C) 2013 - 2015 SMARTRAC Technology Fletcher, Inc.
 * ===============================================================================
 * Licensed 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.
 * #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
 */

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

public class DoubleMapper implements IMetadataValueMapper
{
    @Override
    public byte[] toBytes(Double value)
    {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream dataOutputStream = new DataOutputStream(baos);

        try
        {
            dataOutputStream.writeDouble(value);
        } catch (IOException e)
        {
            e.printStackTrace();
        }

        return baos.toByteArray();
    }

    @Override
    public Double fromBytes(byte[] rawValue)
    {
        Double doubleValue = null;

        ByteArrayInputStream bais = new ByteArrayInputStream(rawValue);
        DataInputStream dataInputStream = new DataInputStream(bais);

        try
        {
            doubleValue = dataInputStream.readDouble();
        } catch (IOException e)
        {
            e.printStackTrace();
        }

        return doubleValue;
    }
}