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javaFMI is a Java Library for the functional mock-up interface (or FMI). FMI defines a standardized interface to be used in computer simulations. The FMI Standard has beed developed by a large number of software companies and research centers that have worked in a cooperation project under the name of MODELISAR. This library addresses the connection of a java application with a FMU (functional mock-up unit).

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/*
 *  Copyright 2013-2016 SIANI - ULPGC
 *
 *  This File is part of JavaFMI Project
 *
 *  JavaFMI Project is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License.
 *
 *  JavaFMI Project is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with JavaFMI. If not, see .
 */

package org.javafmi.proxy.v1;

import java.nio.ByteBuffer;
import java.nio.DoubleBuffer;
import java.nio.IntBuffer;

public class Buffers {
    public static final int CAPACITY = 128;

    private DoubleBuffer doubleBuffer;
    private IntBuffer intBuffer;
    private ByteBuffer byteBuffer;

    public Buffers() {
        this.intBuffer = IntBuffer.allocate(CAPACITY);
        this.doubleBuffer = DoubleBuffer.allocate(CAPACITY);
        this.byteBuffer = ByteBuffer.allocate(CAPACITY);
    }

    public DoubleBuffer forDouble(int length) {
        int capacity = doubleBuffer.capacity();
        if (capacity < length)
            doubleBuffer = DoubleBuffer.allocate(capacity + length);
        return doubleBuffer;
    }

    public IntBuffer forInteger(int length) {
        int capacity = intBuffer.capacity();
        if (capacity < length)
            intBuffer = IntBuffer.allocate(capacity + length);
        return intBuffer;
    }

    public ByteBuffer forBytes(int length) {
        int capacity = byteBuffer.capacity();
        if (capacity < length)
            byteBuffer = ByteBuffer.allocate(capacity + length);
        return byteBuffer;
    }
}