public void unregister() {
try {
forceUnregister(SERVICE.getFileExtensionAssociation(extention));
forceUnregister(SERVICE.getMimeTypeAssociation(extention));
} catch (IllegalArgumentException ignored) {
// SEE: LWC-1170
LOG.warn("Can't unregister!", ignored);
}
}
public boolean isAvailable() {
try {
// if no association at all, then it is available
Association f = SERVICE.getFileExtensionAssociation(extention);
if (f == null && f == SERVICE.getMimeTypeAssociation(mimeType)) return true;
} catch (IllegalArgumentException iae) {
// SEE: LWC-1170
// If JDIC bails on us, the registry might be a little confused...
// so let's fix it by inserting ours.
LOG.warn("Can't check availability!", iae);
return true;
}
// still check for a default handler.
String extHandler = SystemUtils.getDefaultExtentionHandler(extention);
return ("".equals(extHandler) && "".equals(SystemUtils.getDefaultMimeHandler(mimeType)));
}
public void register() {
try {
SERVICE.registerUserAssociation(association);
SystemUtils.flushIconCache();
} catch (AssociationAlreadyRegisteredException ignore) {
LOG.error("can't register", ignore);
} catch (RegisterFailedException ignore) {
LOG.error("can't register", ignore);
}
}
private void forceUnregister(Association f) {
if (f == null) return;
try {
SERVICE.unregisterUserAssociation(f);
SystemUtils.flushIconCache();
} catch (AssociationNotRegisteredException ignore) {
LOG.error("can't unregister", ignore);
} catch (RegisterFailedException ignore) {
LOG.error("can't unregister", ignore);
}
}
public boolean isRegistered() {
Association f;
try {
f = SERVICE.getFileExtensionAssociation(extention);
} catch (IllegalArgumentException iae) {
// SEE: LWC-1170
LOG.warn("Can't check registration!", iae);
return false;
}
if (f == null) return false;
Action open = f.getActionByVerb(verb);
if (open == null) return false;
if (executable.equals(open.getCommand())) return true;
return executable.equals(SystemUtils.getDefaultExtentionHandler(extention))
&& executable.equals(SystemUtils.getDefaultMimeHandler(mimeType));
}