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MDSplus interface (via lib or mdsip).
package mds;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.nio.DoubleBuffer;
import java.nio.FloatBuffer;
import java.nio.LongBuffer;
import mds.Mds.Request;
import mds.data.CTX;
import mds.data.descriptor.Descriptor;
import mds.data.descriptor_a.Uint8Array;
import mds.data.descriptor_s.Float32;
import mds.data.descriptor_s.Int32;
import mds.data.descriptor_s.Int64;
public class MdsMisc extends Mdsdcl
{
public final static class DataStruct
{
private static String byte2String(final byte[] bytes)
{
try
{
return new String(bytes, "UTF-8");
}
catch (final UnsupportedEncodingException e)
{
return null;
}
}
public final String y_label;
public final String x_label;
public final String title;
public final float[] y;
public final long[] lx;
public final double[] dx;
public final float[] fx;
public final int length;
public final float preres;
public final byte type;
public final double actres;
public DataStruct(final byte[] bytes)
{
final ByteBuffer buf = ByteBuffer.wrap(bytes);
this.preres = buf.getFloat();
this.length = Math.max(buf.getInt(), 0);
this.type = buf.get();
this.y = new float[this.length];
buf.asFloatBuffer().get(this.y);
buf.position(buf.position() + Float.BYTES * this.length);
if (this.type == 1)
{// Long X i.e. nsec
this.fx = null;
this.dx = null;
this.lx = new long[this.length];
buf.asLongBuffer().get(this.lx);
buf.position(buf.position() + Long.BYTES * this.length);
this.actres = this.length == 0 ? 0 : this.length * 1e9 / (this.lx[this.length - 1] - this.lx[0]);
}
else if (this.type == 2)
{// double X i.e. sec
this.fx = null;
this.dx = new double[this.length];
this.lx = null;
buf.asDoubleBuffer().get(this.dx);
buf.position(buf.position() + Double.BYTES * this.length);
this.actres = this.length == 0 ? 0 : this.length / (this.dx[this.length - 1] - this.dx[0]);
}
else
{ // float X
this.fx = new float[this.length];
this.dx = null;
this.lx = null;
buf.asFloatBuffer().get(this.fx);
buf.position(buf.position() + Float.BYTES * this.length);
this.actres = this.length == 0 ? 0 : this.length / (this.fx[this.length - 1] - this.fx[0]);
}
if (this.length == 0)
{
this.title = this.x_label = this.y_label = null;
return;
}
// Get title, xLabel and yLabel
final int titleLen = buf.getInt();
if (titleLen > 0)
{
final byte[] titleBuf = new byte[titleLen];
buf.get(titleBuf);
this.title = DataStruct.byte2String(titleBuf);
}
else
this.title = null;
final int xLabelLen = buf.getInt();
if (xLabelLen > 0)
{
final byte[] xLabelBuf = new byte[xLabelLen];
buf.get(xLabelBuf);
this.x_label = DataStruct.byte2String(xLabelBuf);
}
else
this.x_label = null;
final int yLabelLen = buf.getInt();
if (yLabelLen > 0)
{
final byte[] yLabelBuf = new byte[yLabelLen];
buf.get(yLabelBuf);
this.y_label = DataStruct.byte2String(yLabelBuf);
}
else
this.y_label = null;
}
public final boolean is_double()
{
return this.type == 2;
}
public final boolean is_float()
{
return this.type == 3;
}
public final boolean is_long()
{
return this.type == 1;
}
public final double[] to_double()
{
if (this.is_double())
return this.dx;
if (this.is_long())
{
final double[] d = new double[this.lx.length];
final LongBuffer lb = LongBuffer.wrap(this.lx);
final DoubleBuffer db = DoubleBuffer.wrap(d);
while (lb.hasRemaining())
db.put(lb.get() / 1e9);
return d;
}
if (this.is_float())
{
final double[] d = new double[this.fx.length];
final FloatBuffer fb = FloatBuffer.wrap(this.fx);
final DoubleBuffer db = DoubleBuffer.wrap(d);
while (db.hasRemaining())
db.put(fb.get());
return d;
}
return null;
}
public final float[] to_float()
{
if (this.is_float())
return this.fx;
if (this.is_long())
{
final float[] f = new float[this.lx.length];
final LongBuffer lb = LongBuffer.wrap(this.lx);
final FloatBuffer fb = FloatBuffer.wrap(f);
while (lb.hasRemaining())
fb.put(lb.get() / 1e9f);
return f;
}
if (this.is_double())
{
final float[] f = new float[this.dx.length];
final DoubleBuffer db = DoubleBuffer.wrap(this.dx);
final FloatBuffer fb = FloatBuffer.wrap(f);
while (db.hasRemaining())
fb.put((float) (db.get()));
return f;
}
return null;
}
public final long[] to_long()
{
if (this.is_long())
return this.lx;
if (this.is_double())
{
final long[] l = new long[this.dx.length];
final DoubleBuffer db = DoubleBuffer.wrap(this.dx);
final LongBuffer lb = LongBuffer.wrap(l);
while (db.hasRemaining())
lb.put((long) (db.get() * 1e9));
return l;
}
if (this.is_float())
{
final long[] l = new long[this.fx.length];
final FloatBuffer fb = FloatBuffer.wrap(this.fx);
final LongBuffer lb = LongBuffer.wrap(l);
while (fb.hasRemaining())
lb.put((long) (fb.get() * 1e9));
return l;
}
return null;
}
}
@SuppressWarnings("rawtypes")
public static final class MiscCall extends Shr.LibCall
{
public MiscCall(final Class rtype, final String name)
{
super(0, rtype, name);
}
@Override
protected final String getImage()
{ return "MdsMisc"; }
}
public MdsMisc(final Mds mds)
{
super(mds);
}
private final byte[] _miscGetXYSignal(final CTX ctx, final String ydata, final String xdata, final float xmin,
final float xmax, final int num_samples) throws MdsException
{
final Request request = new MiscCall<>(Uint8Array.class, "GetXYSignal:DSC")//
.ref(Descriptor.valueOf(ydata)).ref(Descriptor.valueOf(xdata)).ref(new Float32(xmin))
.ref(new Float32(xmax)).ref(new Int32(num_samples)).fin();
return this.mds.getByteArray(ctx, request);
}
private final byte[] _miscGetXYSignalLongTimes(final CTX ctx, final String ydata, final String xdata,
final long xmin, final long xmax, final int num_samples) throws MdsException
{
final Request request = new MiscCall<>(Uint8Array.class, "GetXYSignalLongTimes:DSC")//
.ref(Descriptor.valueOf(ydata)).ref(Descriptor.valueOf(xdata)).ref(new Int64(xmin)).ref(new Int64(xmax))
.ref(new Int32(num_samples)).fin();
return this.mds.getByteArray(ctx, request);
}
public final DataStruct miscGetXYSignal(final CTX ctx, final String ydata, final String xdata, final float xmin,
final float xmax, final int num_samples) throws MdsException
{
return new DataStruct(this._miscGetXYSignal(ctx, ydata, xdata, xmin, xmax, num_samples));
}
public final DataStruct miscGetXYSignalLongTimes(final CTX ctx, final String ydata, final String xdata,
final long xmin, final long xmax, final int num_samples) throws MdsException
{
return new DataStruct(this._miscGetXYSignalLongTimes(ctx, ydata, xdata, xmin, xmax, num_samples));
}
public Descriptor miscGetXYSignalXd(final CTX ctx, final Descriptor ydata, final Descriptor xdata,
final Descriptor xmin, final Descriptor xmax, final int num_samples) throws MdsException
{
@SuppressWarnings("rawtypes")
final Request request = new MiscCall<>(Descriptor.class, "GetXYSignalXd")//
.xd(ydata).xd(xdata).descr(xmin).descr(xmax).val(num_samples).xd("x").fin("__x");
// request uses xd instead of descr in order to avoid evaluation in TdiCall
return this.mds.getDescriptor(ctx, request);
}
}