/**
* Method to send an ACK containing the filename (could actually be a directory) just taken back
* to the client, and to ensure the client connection is kept open.
*
* @param multRunCommand The MULTRUN command we are implementing.
* @param multRunDone The MULTRUN_DONE command object that will be returned to the client. We set
* a sensible error message in this object if this method fails.
* @return We return true if the method succeeds, and false if an error occurs.
* @see #lotus
* @see #serverConnectionThread
* @see ngat.lotus.LOTUS#log
* @see ngat.lotus.LOTUS#error
* @see ngat.message.ISS_INST.MULTRUN_ACK
*/
protected boolean sendMultrunACK(
MULTRUN multRunCommand, MULTRUN_DONE multRunDone, String filename) {
MULTRUN_ACK multRunAck = null;
// send acknowledge to say frames are completed.
// diddly 4000
lotus.log(
Logging.VERBOSITY_INTERMEDIATE,
this.getClass().getName()
+ ":sendMultrunACK:Sending ACK with exposure time "
+ multRunCommand.getExposureTime()
+ " plus ramp overhead "
+ 4000
+ " plus default ACK time "
+ serverConnectionThread.getDefaultAcknowledgeTime()
+ ".");
multRunAck = new MULTRUN_ACK(multRunCommand.getId());
multRunAck.setTimeToComplete(
multRunCommand.getExposureTime()
+ 4000
+ serverConnectionThread.getDefaultAcknowledgeTime());
multRunAck.setFilename(filename);
try {
serverConnectionThread.sendAcknowledge(multRunAck);
} catch (IOException e) {
lotus.error(this.getClass().getName() + ":sendMultrunACK:sendAcknowledge:", e);
multRunDone.setErrorNum(LOTUSConstants.LOTUS_ERROR_CODE_BASE + 1202);
multRunDone.setErrorString("sendMultrunACK:sendAcknowledge:" + e.toString());
multRunDone.setSuccessful(false);
return false;
}
return true;
}
/**
* This method returns the MULTRUN command's acknowledge time. Each frame in the MULTRUN takes the
* exposure time plus the status's max readout time plus the default acknowledge time to complete.
* The default acknowledge time allows time to setup the camera, get information about the
* telescope and save the frame to disk. This method returns the time for the first frame in the
* MULTRUN only, as a MULTRUN_ACK message is returned to the client for each frame taken.
*
* @param command The command instance we are implementing.
* @return An instance of ACK with the timeToComplete set.
* @see #serverConnectionThread
* @see #status
* @see ngat.message.base.ACK#setTimeToComplete
* @see LOTUSTCPServerConnectionThread#getDefaultAcknowledgeTime
* @see MULTRUN#getExposureTime
* @see MULTRUN#getNumberExposures
*/
public ACK calculateAcknowledgeTime(COMMAND command) {
MULTRUN multRunCommand = (MULTRUN) command;
ACK acknowledge = null;
acknowledge = new ACK(command.getId());
acknowledge.setTimeToComplete(
multRunCommand.getExposureTime() + serverConnectionThread.getDefaultAcknowledgeTime());
return acknowledge;
}
/**
* This method implements the MULTRUN command.
*
* <ul>
* <li>We initialise exposure status variables
* (<b>setExposureCount</b>/<b>setExposureNumber</b>/ <b>setExposureLength</b>).
* <li>It moves the fold mirror to the correct location (<b>moveFold</b>).
* <li>We setup the OBSTYPE and configure the fitsFilename instance based on whether we are
* doing an exposure or standard.
* <li>For each exposure we do the following:
* <ul>
* <li>We call <b>clearFitsHeaders</b> to reset the FITS headers information.
* <li>We call <b>setFitsHeaders</b> to set FITS header data based on the current config.
* <li>Calls <b>getFitsHeadersFromISS</b> to get FITS headers (incorporating the latest
* offset) from the ISS.
* <li>Adds the returned FITS headers to lotusFitsHeader.
* <li>We call fitsFilename to generate a FITS filename to save data into, a create a
* leafFilename fromthis to send to the INDI server.
* <li>We call <b>createLockFile</b> to create a lock file.
* <li>We call <b>ccd.expose</b> to do the exposure and save it in the specified filename.
* <li>We call <b>lotusFitsHeader.writeFitsHeader</b> to append the constructed FITS
* headers to the INDI generated FITS file.
* <li>We call <b>deleteLockFile</b> to delete the previously created lock file.
* </ul>
* <li>We set up the return values to return to the client.
* </ul>
*
* The resultant filenames or the relevant error code is put into the an object of class
* MULTRUN_DONE and returned. During execution of these operations the abort flag is tested to see
* if we need to stop the implementation of this command.
*
* @see #sendACK
* @see #testAbort
* @see #moveFold
* @see #clearFitsHeaders
* @see #setFitsHeaders
* @see #getFitsHeadersFromISS
* @see #lotus
* @see #ccd
* @see #lotusFitsHeader
* @see LOTUS#log
* @see LOTUS#error
* @see LOTUS#getFitsFilename
* @see LOTUSStatus#setCurrentMode
* @see LOTUSStatus#setExposureCount
* @see LOTUSStatus#setExposureNumber
* @see LOTUSStatus#setExposureLength
* @see LOTUSStatus#setExposureStartTime
* @see FITSImplementation#createLockFile
* @see FITSImplementation#deleteLockFile
* @see ngat.lotus.ccd.StarlightExpressTriusSX35#expose
* @see ngat.fits.FitsFilename#nextMultRunNumber
* @see ngat.fits.FitsFilename#setExposureCode
* @see ngat.fits.FitsFilename#nextRunNumber
* @see ngat.fits.FitsFilename#getFilename
* @see ngat.fits.FitsHeader#writeFitsHeader
*/
public COMMAND_DONE processCommand(COMMAND command) {
MULTRUN multRunCommand = (MULTRUN) command;
MULTRUN_DP_ACK multRunDpAck = null;
MULTRUN_DONE multRunDone = new MULTRUN_DONE(command.getId());
FitsFilename fitsFilename = null;
File fitsFile = null;
String obsType = null;
String filename = null;
String leafname = null;
double exposureLengthSeconds;
int index;
boolean retval = false;
boolean fitsFilenameRename;
boolean done;
lotus.log(
Logging.VERBOSITY_TERSE,
this.getClass().getName()
+ ":processCommand:Starting MULTRUN with exposure length "
+ multRunCommand.getExposureTime()
+ " ms and number of exposures "
+ multRunCommand.getNumberExposures()
+ ".");
if (testAbort(multRunCommand, multRunDone) == true) return multRunDone;
// send an initiali ACK, actually getDefaultAcknowledgeTime long
if (sendACK(multRunCommand, multRunDone, 0) == false) return multRunDone;
// setup exposure status.
status.setExposureCount(multRunCommand.getNumberExposures());
status.setExposureNumber(0);
status.setExposureLength(multRunCommand.getExposureTime());
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
// increment multrun number
fitsFilename = lotus.getFitsFilename();
fitsFilename.nextMultRunNumber();
// move the fold mirror to the correct location
if (moveFold(multRunCommand, multRunDone) == false) return multRunDone;
if (testAbort(multRunCommand, multRunDone) == true) return multRunDone;
try {
if (multRunCommand.getStandard()) {
obsType = FitsHeaderDefaults.OBSTYPE_VALUE_STANDARD;
fitsFilename.setExposureCode(FitsFilename.EXPOSURE_CODE_STANDARD);
} else {
obsType = FitsHeaderDefaults.OBSTYPE_VALUE_EXPOSURE;
fitsFilename.setExposureCode(FitsFilename.EXPOSURE_CODE_EXPOSURE);
}
} catch (Exception e) {
lotus.error(this.getClass().getName() + ":processCommand:Failed to set Exposure Code:", e);
multRunDone.setErrorNum(LOTUSConstants.LOTUS_ERROR_CODE_BASE + 1203);
multRunDone.setErrorString("processCommand:Failed to set Exposure Code:" + e);
multRunDone.setSuccessful(false);
return multRunDone;
}
// configure the array
exposureLengthSeconds = ((double) (multRunCommand.getExposureTime()) / 1000.0);
// send an ACK, actually getDefaultAcknowledgeTime long
if (sendACK(multRunCommand, multRunDone, 0) == false) return multRunDone;
if (testAbort(multRunCommand, multRunDone) == true) return multRunDone;
// do exposures
index = 0;
retval = true;
while (retval && (index < multRunCommand.getNumberExposures())) {
// send an ACK, actually at least one exposure length +readout long
// diddly 4000
if (sendACK(multRunCommand, multRunDone, multRunCommand.getExposureTime() + 4000) == false) {
lotus.log(
Logging.VERBOSITY_VERY_VERBOSE,
this.getClass().getName() + ":processCommand:sendACK failed for index " + index + ".");
return multRunDone;
}
if (testAbort(multRunCommand, multRunDone) == true) {
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
return multRunDone;
}
lotus.log(
Logging.VERBOSITY_INTERMEDIATE,
this.getClass().getName()
+ ":processCommand:Starting exposure "
+ index
+ " of length "
+ exposureLengthSeconds
+ "s.");
lotus.log(
Logging.VERBOSITY_INTERMEDIATE,
this.getClass().getName() + ":processCommand:Clear FITS headers.");
clearFitsHeaders();
// set FITS header
if (setFitsHeaders(
multRunCommand,
multRunDone,
obsType,
multRunCommand.getExposureTime(),
multRunCommand.getNumberExposures())
== false) {
lotus.log(
Logging.VERBOSITY_VERY_VERBOSE,
this.getClass().getName()
+ ":processCommand:setFitsHeaders failed for index "
+ index
+ ".");
return multRunDone;
}
// get FITS headers from ISS
if (getFitsHeadersFromISS(multRunCommand, multRunDone) == false) {
lotus.log(
Logging.VERBOSITY_VERY_VERBOSE,
this.getClass().getName()
+ ":processCommand:getFitsHeadersFromISS failed for index "
+ index
+ ".");
return multRunDone;
}
try {
// increment run number in Multrun
fitsFilename.nextRunNumber();
// get filenane
filename = fitsFilename.getFilename();
// get leaf name of fits filename
fitsFile = new File(filename);
leafname = fitsFile.getName();
// now remove '.fits' as INDI driver does not want this in the filename leafname
leafname = leafname.substring(0, leafname.lastIndexOf('.'));
// create lock file
createLockFile();
} catch (Exception e) {
deleteLockFile();
lotus.error(
this.getClass().getName() + ":processCommand:Processing FITS filename failed:", e);
multRunDone.setErrorNum(LOTUSConstants.LOTUS_ERROR_CODE_BASE + 1204);
multRunDone.setErrorString("processCommand:Processing FITS filename failed:" + e);
multRunDone.setSuccessful(false);
return multRunDone;
}
if (testAbort(multRunCommand, multRunDone) == true) {
deleteLockFile();
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
return multRunDone;
}
// take exposure
lotus.log(
Logging.VERBOSITY_INTERMEDIATE,
this.getClass().getName()
+ ":processCommand:Exposing CCD for "
+ exposureLengthSeconds
+ " seconds.");
status.setExposureStartTime(System.currentTimeMillis());
try {
status.setCurrentMode(GET_STATUS_DONE.MODE_EXPOSING);
ccd.expose(exposureLengthSeconds, leafname);
status.setCurrentMode(GET_STATUS_DONE.MODE_READING_OUT);
} catch (Exception e) {
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
deleteLockFile();
lotus.error(this.getClass().getName() + ":processCommand:Taking exposure failed:", e);
multRunDone.setErrorNum(LOTUSConstants.LOTUS_ERROR_CODE_BASE + 1201);
multRunDone.setErrorString("processCommand:Taking exposure failed:" + e);
multRunDone.setSuccessful(false);
return multRunDone;
}
if (testAbort(multRunCommand, multRunDone) == true) {
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
deleteLockFile();
return multRunDone;
}
// update FITS headers needing timestamp information
if (setFitsHeaderTimestamps(multRunCommand, multRunDone) == false) {
deleteLockFile();
lotus.log(
Logging.VERBOSITY_VERY_VERBOSE,
this.getClass().getName()
+ ":processCommand:setFitsHeaderTimestamps failed for index "
+ index
+ ".");
return multRunDone;
}
// append FITS headers to created FITS image
try {
lotusFitsHeader.writeFitsHeader(filename);
} catch (Exception e) {
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
deleteLockFile();
lotus.error(
this.getClass().getName()
+ ":processCommand:Adding FITS headers to "
+ filename
+ " failed:",
e);
multRunDone.setErrorNum(LOTUSConstants.LOTUS_ERROR_CODE_BASE + 1205);
multRunDone.setErrorString(
"processCommand:Adding FITS headers to " + filename + " failed:" + e);
multRunDone.setSuccessful(false);
return multRunDone;
}
// delete lock file
deleteLockFile();
// flip images?
// increment exposure number
status.setExposureNumber(index + 1);
// test whether an abort has occured.
if (testAbort(multRunCommand, multRunDone) == true) {
retval = false;
}
index++;
} // end while
status.setCurrentMode(GET_STATUS_DONE.MODE_IDLE);
// no pipeline processing, set return value to something bland.
// set filename to last filename exposed.
multRunDone.setFilename(filename);
multRunDone.setCounts(0.0f);
multRunDone.setSeeing(0.0f);
multRunDone.setXpix(0.0f);
multRunDone.setYpix(0.0f);
multRunDone.setPhotometricity(0.0f);
multRunDone.setSkyBrightness(0.0f);
multRunDone.setSaturation(false);
// if a failure occurs, return now
if (!retval) return multRunDone;
// setup return values.
// setCounts,setFilename,setSeeing,setXpix,setYpix
// setPhotometricity, setSkyBrightness, setSaturation set by reduceExpose for last image
// reduced.
multRunDone.setErrorNum(LOTUSConstants.LOTUS_ERROR_CODE_NO_ERROR);
multRunDone.setErrorString("");
multRunDone.setSuccessful(true);
// return done object.
lotus.log(
Logging.VERBOSITY_VERY_TERSE,
this.getClass().getName() + ":processCommand:MULTRUN command completed.");
return multRunDone;
}
