ccd
Class ScienceCcdDriver

java.lang.Object
  util.PropertyContainer
      util.PropertyResources
          util.PropertyBundles
              io.AbstractDriver
                  ccd.AbstractCcdDriver<T>
                      ccd.SynchronousCcdDriver<nom.tam.fits.Fits>
                          ccd.ScienceCcdDriver

All Implemented Interfaces:

CcdDriver<nom.tam.fits.Fits>, Driver, Cloneable, Initializable, LocalizedSupplying, PropertySupplying, ResourceSupplying

public class ScienceCcdDriver
extends SynchronousCcdDriver<nom.tam.fits.Fits>

This class interfaces to Thomas Fechner's Wifsip controller (Magellan) type.

Nested Class Summary

Nested classes/interfaces inherited from class ccd.SynchronousCcdDriver

SynchronousCcdDriver.ExposureThread

Nested classes/interfaces inherited from class ccd.AbstractCcdDriver

AbstractCcdDriver.Endurance, AbstractCcdDriver.Exposure, AbstractCcdDriver.Shot

Nested classes/interfaces inherited from class util.PropertyResources

PropertyResources.URLResource

Field Summary

private nom.tam.fits.Fits	async The data buffer for asynchroneous retrieval.
private static ScienceGradeClient	ccdclient RPC client instance.
static String	DEFDRIVERNAME The name of this ccd.
private static long	DEFEXPOSEMULTIPLY Default property value.
private static long	DEFMINTIME Default property value.
private static int	DEFRPCTIMEOUT Default property value.
private static String	DEFSERVERNAME Default property value.
private static int	DEFSHUTTERCLOSE Default property value.
private static int	DEFSHUTTEROPEN Default property value.
private static boolean	DEFSUPPORTSHUTTER Default property value.
private static boolean	DEFWRONGENDIAN Default property value.
static String	KEY_EXPOSEMULTIPLY The multiplier for exposure times returned to ms.
static String	KEY_MINTIME The minimum exposure time in milliseconds.
static String	KEY_RPCTIMEOUT The RPC time-out in millisecond.
static String	KEY_SERVERNAME FCDN of the host where the guider rpc server is running.
static String	KEY_SHUTTERCLOSE The short paramter for shutter-close.
static String	KEY_SHUTTEROPEN The short paramter for shutter-open.
static String	KEY_SUPPORTSHUTTER If true, driver supports shutter operation.
static String	KEY_WRONGENDIAN If true, endian of received short are little.
static int	OK General return code from rpc calls indicating okay.
static String	XORGREM Comment for entering x-pregap info to header.
static String	XORIGIN Fits key for entering x-pregap info to header.
static String	YORGREM Comment for entering y-pregap info to header.
static String	YORIGIN Fits key for entering y-pregap info to header.

Fields inherited from class ccd.AbstractCcdDriver

KEY_AMPLIFIERS, KEY_AREAREADOUT, KEY_COLUMNPOST, KEY_COLUMNPRIOR, KEY_COLUMNREADOUT, KEY_FIXEDREADOUT, KEY_INITSIZE, KEY_ROWPOST, KEY_ROWPRIOR, KEY_ROWREADOUT, KEY_XBINNING, KEY_XCHIPSIZE, KEY_XORIGIN, KEY_XSIZE, KEY_YBINNING, KEY_YCHIPSIZE, KEY_YORIGIN, KEY_YSIZE

Fields inherited from class io.AbstractDriver

KEY_DRIVERNAME

Fields inherited from class util.PropertyBundles

KEY_LOCALECOUNTRY, KEY_LOCALELANGUAGE, KEY_RESOURCEBUNDLES

Fields inherited from class util.PropertyResources

KEY_NOINITONCREATE, localurl, locate, POSTFIX_DIR, POSTFIX_EXT, POSTFIX_FILE, POSTFIX_LIST, POSTFIX_URL, urlset

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR

Fields inherited from interface ccd.CcdDriver

FITSEXTENSION

Fields inherited from interface util.ResourceSupplying

KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Constructor Summary

ScienceCcdDriver(Map<String,String> info)
Constructor.

Method Summary

boolean	close() Close the RPC communication.
private boolean	doExposure() Does an exposure.
int	expose() Make an exposure.
int	exposeBias() Makes a bias exposure.
int	exposeDark() Makes a dark exposure.
Dimension	getBinning() Get the binning values in x (columns) and y (rows).
Class<nom.tam.fits.Fits>	getBufferType() We work directly on a fits object.
Map	getCcdInfo() This ccd does not provide any additional info.
nom.tam.fits.Fits	getDataBuffer() Returns the output buffer.
long	getExposureTime() Get the current exposure time in milliseconds.
protected Dimension	getMaxPixel() Get the max_pixel values for x (columns) and y (rows).
private Point	getPregap() Returns the pregap.
private Dimension	getReadoutArea() Returns read-ouyt area as a dimension.
Rectangle	getWindow() Get the current image origin (pre-gap) in x (columns) and y (rows) and the size
void	init() Clear any leftovers.
boolean	isOpen() We consider the driver to be open if the ccdclient is initialized.
protected boolean	openController() Initializes the fechner driver.
boolean	setBinning(int xbin, int ybin) Set the binning values in x (columns) and y (rows).
boolean	setDataBuffer(nom.tam.fits.Fits file) Sets the output buffer.
boolean	setExposureTime(long exptime) Set the current exposure time in milliseconds.
protected boolean	setMaxPixel(Dimension max) Set the max_pixel values for x (columns) and y (rows).
private boolean	setShutter(boolean open) Sets the shutter position.
boolean	setWindow(Rectangle window) Set the current image window.
private static short[]	swap(short[] little, int start, int len) Swaps wrong endian in a short array.

Methods inherited from class ccd.SynchronousCcdDriver

ensureReady, isExposing, threadedDarkExpose, threadedExpose

Methods inherited from class ccd.AbstractCcdDriver

getChipSize, getReadoutTime, open

Methods inherited from class io.AbstractDriver

createDriver, equals, getDriverName, hashCode

Methods inherited from class util.PropertyBundles

clone, getLocalized, getLocalized, getLocalizedString, getLocalizedString, loadResource

Methods inherited from class util.PropertyResources

createFrom, createFrom, createFrom, getApplet, getAsResources, getLocalClassLoader, getPropertiesToKey, getPropertiesToKey, getResource, getResourceAsStream, getResourceFromKey, getResources, keyCreate, keyCreate, reload, setApplet

Methods inherited from class util.PropertyContainer

augment, augment, augment, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, isNew, parseObject, reload, removeProperty, rescanned, setObject, setProperties, setProperty, stringProperties, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.Driver

getDriverName

Methods inherited from interface util.ResourceSupplying

getResource, getResourceAsStream, getResources

Methods inherited from interface util.PropertySupplying

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Field Detail

OK

public static final int OK

General return code from rpc calls indicating okay.

See Also:

Constant Field Values

XORIGIN

public static final String XORIGIN

Fits key for entering x-pregap info to header.

See Also:

Constant Field Values

XORGREM

public static final String XORGREM

Comment for entering x-pregap info to header.

See Also:

Constant Field Values

YORIGIN

public static final String YORIGIN

Fits key for entering y-pregap info to header.

See Also:

Constant Field Values

YORGREM

public static final String YORGREM

Comment for entering y-pregap info to header.

See Also:

Constant Field Values

KEY_SERVERNAME

public static final String KEY_SERVERNAME

FCDN of the host where the guider rpc server is running.

See Also:

Constant Field Values

KEY_EXPOSEMULTIPLY

public static final String KEY_EXPOSEMULTIPLY

The multiplier for exposure times returned to ms.

See Also:

Constant Field Values

KEY_SUPPORTSHUTTER

public static final String KEY_SUPPORTSHUTTER

If true, driver supports shutter operation.

See Also:

Constant Field Values

KEY_SHUTTEROPEN

public static final String KEY_SHUTTEROPEN

The short paramter for shutter-open.

See Also:

Constant Field Values

KEY_SHUTTERCLOSE

public static final String KEY_SHUTTERCLOSE

The short paramter for shutter-close.

See Also:

Constant Field Values

KEY_MINTIME

public static final String KEY_MINTIME

The minimum exposure time in milliseconds.

See Also:

Constant Field Values

KEY_RPCTIMEOUT

public static final String KEY_RPCTIMEOUT

The RPC time-out in millisecond.

See Also:

Constant Field Values

KEY_WRONGENDIAN

public static final String KEY_WRONGENDIAN

If true, endian of received short are little.

See Also:

Constant Field Values

DEFDRIVERNAME

public static final String DEFDRIVERNAME

The name of this ccd.

See Also:

Constant Field Values

DEFSERVERNAME

private static final String DEFSERVERNAME

Default property value.

See Also:

Constant Field Values

DEFSUPPORTSHUTTER

private static final boolean DEFSUPPORTSHUTTER

Default property value.

See Also:

Constant Field Values

DEFSHUTTEROPEN

private static final int DEFSHUTTEROPEN

Default property value.

See Also:

Constant Field Values

DEFSHUTTERCLOSE

private static final int DEFSHUTTERCLOSE

Default property value.

See Also:

Constant Field Values

DEFMINTIME

private static final long DEFMINTIME

Default property value.

See Also:

Constant Field Values

DEFEXPOSEMULTIPLY

private static final long DEFEXPOSEMULTIPLY

Default property value.

See Also:

Constant Field Values

DEFRPCTIMEOUT

private static final int DEFRPCTIMEOUT

Default property value.

See Also:

Constant Field Values

DEFWRONGENDIAN

private static final boolean DEFWRONGENDIAN

Default property value.

See Also:

Constant Field Values

ccdclient

private static ScienceGradeClient ccdclient

RPC client instance.

async

private nom.tam.fits.Fits async

The data buffer for asynchroneous retrieval.

Constructor Detail

ScienceCcdDriver

public ScienceCcdDriver(Map<String,String> info)

Constructor. Does not open the connection, this is done in init().

Method Detail

init

public void init()

Clear any leftovers.

Specified by:

init in interface Initializable

Overrides:

init in class AbstractCcdDriver<nom.tam.fits.Fits>

openController

protected boolean openController()
                          throws IOException

Initializes the fechner driver. Tries to connect to the server and sets default values for binning, maximum size of the chip and read-out window. If a shutter is supported, it is closed. Returns true if initialization was successful.

Specified by:

openController in class AbstractCcdDriver<nom.tam.fits.Fits>

Throws:

IOException - If controller connection fails.

isOpen

public boolean isOpen()

We consider the driver to be open if the ccdclient is initialized.

Returns:

True, if a previous initialization was successful

close

public boolean close()
              throws IOException

Close the RPC communication.

Returns:

True if clean-up was successful.

Throws:

IOException

setMaxPixel

protected boolean setMaxPixel(Dimension max)
                       throws IOException

Set the max_pixel values for x (columns) and y (rows).

Parameters:

xmax - maximum CCD size in x-direction (1 <= value < 65536)

ymax - maximum CCD size in y-direction (1 <= value < 65536)

Throws:

IOException

getMaxPixel

protected Dimension getMaxPixel()
                         throws IOException

Get the max_pixel values for x (columns) and y (rows).

Returns:

A dimension object, where the size in x is the width.

Throws:

IOException

setBinning

public boolean setBinning(int xbin,
                          int ybin)
                   throws IOException

Set the binning values in x (columns) and y (rows).

Parameters:

xbin - binning factor in x-direction (1 <= binning factor <= 255)

ybin - binning factor in y-direction (1 <= binning factor <= 255)

Returns:

True if successful.

Throws:

IOException - Any subclass of IOException

getBinning

public Dimension getBinning()
                     throws IOException

Get the binning values in x (columns) and y (rows).

Returns:

Dimension object, columns in width.

Throws:

IOException - Any subclass of IOException.

setWindow

public boolean setWindow(Rectangle window)
                  throws IOException

Set the current image window.

Parameters:

window - The origin being the upper left corner of the rectangle.

Returns:

True if successful.

Throws:

IOException - Any subclass of IOException.

getWindow

public Rectangle getWindow()
                    throws IOException

Get the current image origin (pre-gap) in x (columns) and y (rows) and the size

Returns:

A rectangle with pre-gap upper left corner.

Throws:

IOException - Any subclass of IOException.

setExposureTime

public boolean setExposureTime(long exptime)
                        throws IOException

Set the current exposure time in milliseconds.

Parameters:

expTime - exposure time in milliseconds. (0 <= expTime < 65536 ms)

Returns:

True if successful.

Throws:

IOException - Any subclass of IOException.

getExposureTime

public long getExposureTime()
                     throws IOException

Get the current exposure time in milliseconds.

Returns:

current exposure time (in milliseconds).

Throws:

IOException - Any subclass of IOException.

getBufferType

public Class<nom.tam.fits.Fits> getBufferType()

We work directly on a fits object.

setDataBuffer

public boolean setDataBuffer(nom.tam.fits.Fits file)
                      throws IOException

Sets the output buffer. The buffer must be a fits object.

Parameters:

file - Any sort of buffer the driver knows to store CCD-data in.

Returns:

True if successful.

Throws:

IOException - Any subclass of IOException.

getDataBuffer

public nom.tam.fits.Fits getDataBuffer()
                                throws IOException

Returns the output buffer. This is either the fits buffer set via a call to setDataBuffer(nom.tam.fits.Fits), or null if not set and no exposure has been taken. If an exposure has finished and the buffer has not been explicedly set, a new fits object has been allocated, which will be returned here.

Throws:

IOException - Any subclass of IOException.

getCcdInfo

public Map getCcdInfo()

This ccd does not provide any additional info.

expose

public int expose()
           throws IOException

Make an exposure. The exposure time and the data buffer must be set prior to a call to this function. If the driver supports a shutter, the shutter is opened before the exposure starts and closed after. Note that this method does not check for proper settings. In TF's driver this method blocks.

Returns:

Number of pixel writtn.

Throws:

IOException - Any subclass of IOException.

See Also:

startExpose

exposeBias

public int exposeBias()
               throws IOException

Makes a bias exposure. Does an dark exposure with minimum time. The data buffer has to be set prior to a call to this method.

Returns:

Number of pixel writtn.

Throws:

IOException - Any subclass of IOException.

exposeDark

public int exposeDark()
               throws IOException

Makes a dark exposure. The shutter is not moved, even if present. The data buffer has to be set prior to a call to this method.

Returns:

Number of pixel writtn..

Throws:

IOException - Any subclass of IOException.

getPregap

private Point getPregap()
                 throws IOException

Returns the pregap. Returns property setting if not open.

Throws:

IOException

swap

private static short[] swap(short[] little,
                            int start,
                            int len)

Swaps wrong endian in a short array.

getReadoutArea

private Dimension getReadoutArea()
                          throws IOException

Returns read-ouyt area as a dimension. Returns property setting if not open.

Throws:

IOException

setShutter

private boolean setShutter(boolean open)
                    throws IOException

Sets the shutter position. If called with true, shutter is opened. Driver must be opened, this is unchecked.

Throws:

IOException

doExposure

private boolean doExposure()
                    throws IOException

Does an exposure. This method calls the RPC-method StreamClient.DO_EXPOSURE_1(ccd.cmd), grabs the returned fits object and transforms it to the more general ImageHDU java object. If a data buffer-fits is set, all of its HDU's are deleted and the new Image is added to the fits file. If no async buffer was set, a new fits file is generated with the current data.

Throws:

IOException