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MDSplus mdsobjects interface
There is a newer version: 7.139.60
package MDSplus;

/**
 * Array description for DTYPE_T .
 *
 * Will handle arrays of string like TDI, i.e. padding to the longest string,
 * for C++, in order to retain compatibility with CLASS_A, DTYPE_Tdescriptors.
 *
 * @author manduchi
 * @version 1.0
 * @updated 30-mar-2009 13.44.42
 */
public class StringArray extends Array
{
	java.lang.String[] datum;

	public StringArray(java.lang.String[] inDatum)
	{
		help = null;
		units = null;
		error = null;
		validation = null;
		clazz = CLASS_A;
		dtype = DTYPE_T;
		dims = new int[1];
		dims[0] = inDatum.length;
		datum = new java.lang.String[inDatum.length];
		System.arraycopy(inDatum, 0, datum, 0, inDatum.length);
	}

	public StringArray(java.lang.String[] inDatum, int[] dims) throws MdsException
	{
		this(inDatum, dims, null, null, null, null);
	}

	public StringArray(java.lang.String[] inDatum, int[] dims, Data help, Data units, Data error, Data validation)
			throws MdsException
	{
		super(dims, help, units, error, validation);
		clazz = CLASS_A;
		dtype = DTYPE_T;
//        if(inDatum.length != getSize())
//            throw new MdsException("Invalid array size in Uint8 Array constructor");
		datum = new java.lang.String[inDatum.length];
		System.arraycopy(inDatum, 0, datum, 0, inDatum.length);
		setShape(dims);
	}

	@Override
	public boolean equals(Object obj)
	{
		if (!(obj instanceof StringArray))
			return false;
		final StringArray data = (StringArray) obj;
		if (data.dims.length != dims.length)
			return false;
		for (int i = 0; i < dims.length; i++)
			if (data.dims[i] != dims[i])
				return false;
		for (int i = 0; i < datum.length; i++)
			if (!data.datum[i].equals(datum[i]))
				return false;
		return true;
	}

	public static Data getData(java.lang.String[] datum, int[] dims, Data help, Data units, Data error, Data validation)
	{
		try
		{
			return new StringArray(datum, dims, help, units, error, validation);
		}
		catch (final Exception exc)
		{
			return null;
		}
	}

	@Override
	public Data getElementAt(int idx)
	{
		return new String(datum[idx]);
	}

	@Override
	public int getSize()
	{ return datum.length; }

	@Override
	protected Array getPortionAt(int startIdx, int[] newDims, int newSize) throws MdsException
	{
		final java.lang.String newDatum[] = new java.lang.String[newSize];
		System.arraycopy(datum, startIdx, newDatum, 0, newSize);
		return new StringArray(newDatum, newDims);
	}

	@Override
	public void setElementAt(int idx, Data data) throws MdsException
	{
		datum[idx] = data.getString();
	}

	@Override
	protected void setPortionAt(Array data, int startIdx, int size) throws MdsException
	{
		final java.lang.String[] newDatum = data.getStringArray();
		System.arraycopy(datum, startIdx, newDatum, 0, size);
	}

	@Override
	public byte[] getByteArray() throws MdsException
	{
		throw new MdsException("Cannot convert string array to byte array");
	}

	@Override
	public short[] getShortArray() throws MdsException
	{
		throw new MdsException("Cannot convert string array to short array");
	}

	@Override
	public int[] getIntArray() throws MdsException
	{
		throw new MdsException("Cannot convert string array to int array");
	}

	@Override
	public long[] getLongArray() throws MdsException
	{
		throw new MdsException("Cannot convert string array to long array");
	}

	@Override
	public float[] getFloatArray() throws MdsException
	{
		throw new MdsException("Cannot convert string array to float array");
	}

	@Override
	public double[] getDoubleArray() throws MdsException
	{
		throw new MdsException("Cannot convert string array to double array");
	}

	@Override
	public java.lang.String[] getStringArray()
	{
		final java.lang.String retStrings[] = new java.lang.String[datum.length];
		System.arraycopy(datum, 0, retStrings, 0, datum.length);
		return retStrings;
	}

	@Override
	public int getSizeInBytes()
	{
		// find longest string
		int maxLen = 0;
		for (int i = 0; i < datum.length; i++)
			if (datum[i] != null && datum[i].length() > maxLen)
				maxLen = datum[i].length();
		return datum.length * maxLen;
	}
}