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This is the parser library for the PDS4 planetary data standard.

There is a newer version: 2.8.4

// Copyright 2019, California Institute of Technology ("Caltech").
// U.S. Government sponsorship acknowledged.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
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// materials provided with the distribution.
// * Neither the name of Caltech nor its operating division, the Jet Propulsion
// Laboratory, nor the names of its contributors may be used to endorse or
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package gov.nasa.pds.objectAccess.array;

import java.nio.ByteBuffer;

/**
 * Implements a data type adapter for double values.
 */
public class DoubleAdapter implements DataTypeAdapter {
	
	private IntegerAdapter valueAdapter;
	
	/**
	 * Creates a new instance.
	 * 
	 * @param isBigEndian true, if element is big-endian
	 */
	public DoubleAdapter(boolean isBigEndian) {
		valueAdapter = new IntegerAdapter(Double.SIZE / Byte.SIZE, isBigEndian, true);
	}

	@Override
	public int getInt(ByteBuffer buf) {
		return (int) getValue(buf);
	}

	@Override
	public long getLong(ByteBuffer buf) {
		return (long) getValue(buf);
	}

	@Override
	public double getDouble(ByteBuffer buf) {
		return getValue(buf);
	}
	
	private double getValue(ByteBuffer buf) {
		long bits = valueAdapter.getLong(buf);
		return Double.longBitsToDouble(bits);
	}

}