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package mds.data.descriptor_a;

import java.nio.ByteBuffer;
import mds.data.DTYPE;
import mds.data.descriptor.Descriptor;
import mds.data.descriptor_s.Int16;

public final class Int16Array extends INTEGERArray
{
	public Int16Array(final ByteBuffer b)
	{
		super(b);
	}

	public Int16Array(final DTYPE dtype, final ByteBuffer data, final int shape[])
	{
		super(DTYPE.W, data, shape);
	}

	public Int16Array(final int shape[], final short... values)
	{
		super(DTYPE.W, values, shape);
	}

	public Int16Array(final short... values)
	{
		super(DTYPE.W, values);
	}

	@Override
	public Uint16Array abs()
	{
		final short[] values = this.toArray();
		for (int i = 0; i < values.length; i++)
			if (values[i] < 0)
				values[i] = (short) (-values[i] & 0xFFFF);
		return new Uint16Array(values);
	}

	@Override
	public final ByteBuffer buildBuffer(final ByteBuffer buf, final int value)
	{
		return buf.putShort((short) value);
	}

	@Override
	protected final boolean format()
	{
		return true;
	}

	@Override
	public final Short getElement(final ByteBuffer b_in)
	{
		return new Short(b_in.getShort());
	}

	@Override
	public final Short getElement(final int i)
	{
		return new Short(this.p.getShort(i * Short.BYTES));
	}

	@Override
	protected final byte getRankBits()
	{ return 0x01; }

	@Override
	public Int16 getScalar(final int idx)
	{
		return new Int16(this.getElement(idx).shortValue());
	}

	@Override
	protected final Short[] initArray(final int size)
	{
		return new Short[size];
	}

	@Override
	public final Uint16Array inot()
	{
		final short[] values = this.toArray();
		for (int i = 0; i < values.length; i++)
			values[i] = (short) (~values[i] & 0xFFFF);
		return new Uint16Array(values);
	}

	@Override
	public Int16Array neg()
	{
		final short[] values = this.toArray();
		for (int i = 0; i < values.length; i++)
			values[i] = (short) (-values[i] & 0xFFFF);
		return new Int16Array(values);
	}

	@Override
	public final Short parse(final String in)
	{
		return Short.decode(in);
	}

	@Override
	protected final void setElement(final ByteBuffer b, final Short value)
	{
		b.putShort(value.shortValue());
	}

	@Override
	protected void setElement(final int i, final Short value)
	{
		this.p.putShort(i * Short.BYTES, value.shortValue());
	}

	public final short[] toArray()
	{
		final short[] values = new short[this.arsize() / Short.BYTES];
		this.getBuffer().asShortBuffer().get(values);
		return values;
	}

	@Override
	public final Int16Array words()
	{
		return this;
	}

	@Override
	public final Uint16Array wordu()
	{
		return new Uint16Array(ByteBuffer.wrap(this.serializeArray_copy()).put(Descriptor._typB, DTYPE.WU.toByte()));
	}
}