/**
* @return Returns the filename hint for an attribute set. The first take is the attribute sets
* resource associated with the algorithm. If this fails, we try to name the file after the
* algorithm itself.
*/
static IPath getDefaultHint(String componentId, String prefix) {
final ProcessingComponentDescriptor component =
WorkbenchCorePlugin.getDefault().getComponent(componentId);
String nameHint = component.getAttributeSetsResource();
if (StringUtils.isBlank(nameHint)) {
// Try a fallback.
nameHint = FileDialogs.sanitizeFileName(prefix + componentId + "-attributes.xml");
}
return new Path(nameHint);
}
/** Open attributes from an XML file. May return an empty value set, but never null. */
static AttributeValueSets openAttributes() {
final IPath pathHint = FileDialogs.recallPath(REMEMBER_DIRECTORY);
final IPath readLocation = FileDialogs.openReadXML(pathHint);
if (readLocation != null) {
FileDialogs.rememberDirectory(REMEMBER_DIRECTORY, readLocation);
try {
final Persister persister = new Persister();
final AttributeValueSets avs =
persister.read(AttributeValueSets.class, readLocation.toFile());
return avs;
} catch (Exception e) {
Utils.showError(
new Status(
IStatus.ERROR,
WorkbenchCorePlugin.PLUGIN_ID,
"Failed to read attributes from: " + readLocation.toOSString(),
e));
}
}
return new AttributeValueSets();
}
/** Save attributes to an XML file. */
static void saveAttributes(IPath filenameHint, AttributeValueSets attributes) {
final IPath pathHint =
filenameHint.isAbsolute()
? filenameHint
: FileDialogs.recallPath(REMEMBER_DIRECTORY).append(filenameHint);
final Path saveLocation = FileDialogs.openSaveXML(pathHint);
if (saveLocation != null) {
try {
final Persister persister = new Persister(new Format(2));
persister.write(attributes, saveLocation.toFile());
} catch (Exception e) {
Utils.showError(
new Status(
IStatus.ERROR,
WorkbenchCorePlugin.PLUGIN_ID,
"An error occurred while saving attributes.",
e));
}
FileDialogs.rememberDirectory(REMEMBER_DIRECTORY, saveLocation);
}
}