/**
* React to a change in an attribute.
*
* @param attribute The changed parameter.
* @exception IllegalActionException If the parameter set is not valid.
*/
public void attributeChanged(Attribute attribute) throws IllegalActionException {
String tmp = null;
if (attribute == serverName) {
// -------------- the user has changed serverName -----------
String strServerName = serverName.getExpression();
if (_serverNameString == null) {
// the value is loaded from the moml file
// don't cal the _createSubmission
_serverNameString = strServerName;
log.info("_serverNameString is set according to original value of moml file.");
if (!strServerName.equals("")) {
_appMetadata = AppMetadataParser.parseAppMetadata(strServerName);
if (_appMetadata == null) {
// something bad happen while getting the appMetadata
log.error("Failed to parse metadata at " + strServerName);
throw new IllegalActionException(
this, "The selected URL does not point to a valid Opal service");
}
}
} else if (!strServerName.equals(_serverNameString)) {
// the user changed the value, we have to update the actor
log.info("Got a new server name: " + strServerName);
_appMetadata = AppMetadataParser.parseAppMetadata(strServerName);
if (_appMetadata != null) {
if (_appMetadata.isArgMetadataEnable())
// complex submission form
_createSubmission(_appMetadata);
else
// simple submission form
_createSimpleSubmission(_appMetadata);
_addDocumentation(_appMetadata);
} else {
// something bad happen while getting the appMetadata
log.error("Failed to parse metadata at " + strServerName);
throw new IllegalActionException(
this, "The selected URL does not point to a valid Opal service");
}
_serverNameString = strServerName;
this.propagateValues();
}
} else if (attribute == numberFiles) {
// -------------- the user has changed the number of files -----------
int numFiles = 1;
try {
numFiles = Integer.parseInt(numberFiles.stringValue());
} catch (NumberFormatException e) {
throw new IllegalActionException(
this, "The numberFiles parameter is not a valid integer, please correct the value");
}
if (numFiles != _numberFiles) {
_updateUploadFileNumber(numFiles);
_numberFiles = numFiles;
}
} else {
log.debug("the user has changed: " + attribute.toString());
}
super.attributeChanged(attribute);
} // attributeChanged
