An ActivityIconSPI provides the icon for an Activity. This determines the icon associated with a service of a specific type.
A new ActivityIconSPI can be added to Taverna 2.x by a class that implements the net.sf.taverna.t2.workbench.activityicons.ActivityIconSPI interface.
The name of the new class must be specified in a net.sf.taverna.t2.workbench.activityicons.ActivityIconSPI file within the appropriate resources/META-INF/services directory.
Example
net.sf.taverna.t2.activities.wsdl.servicedescriptions.WSDLActivityIcon implements the net.sf.taverna.t2.workbench.activityicons.ActivityIconSPI interface.
public class WSDLActivityIcon implements ActivityIconSPI{
private static Icon icon;
public int canProvideIconScore(Activity<?> activity) {
if (activity.getClass().getName().equals(WSDLActivity.class.getName()))
return DEFAULT_ICON + 1;
else
return NO_ICON;
}
public Icon getIcon(Activity<?> activity) {
return getWSDLIcon();
}
public static Icon getWSDLIcon() {
if (icon == null) {
icon = new ImageIcon(
WSDLActivityIcon.class.getResource("/wsdl.png"));
}
return icon;
}
}The file named net.sf.taverna.t2.workbench.activityicons.ActivityIconSPI must contain the line:
net.sf.taverna.t2.activities.wsdl.servicedescriptions.WSDLActivityIcon
