public class Viewer extends SemanticAgent {
// Create a GUI using the provided DefaultViewerGUI implementation
ViewerGUI myGUI = new DefaultViewerGUI("Photo Viewer");
IdentifyingExpression ANY_IMAGE_CONTENT_IRE =
(IdentifyingExpression) SL.fromTerm("(any (sequence ?x ?y) (image-content ?x ?y))");
// Define the ViewerSemanticCapabilities class
public class ViewerSemanticCapabilities extends SemanticCapabilities {
// Override the setupSemanticInterpretationPrinciples method
protected SemanticInterpretationPrincipleTable setupSemanticInterpretationPrinciples() {
// Create a default SIP table
SemanticInterpretationPrincipleTable table = super.setupSemanticInterpretationPrinciples();
// Create a new SIP to display the picture, using a NotificationSIPAdapter
SemanticInterpretationPrinciple sip_view =
new NotificationSIPAdapter(this, "(image-content ??id ??content)") {
protected void notify(final MatchResult applyResult, SemanticRepresentation sr) {
potentiallyAddBehaviour(
new OneShotBehaviour() {
public void action() {
myGUI.displayPhoto(((Constant) applyResult.term("content")).byteValue());
}
});
}
};
// Add the created SIP into the SIP table
table.addSemanticInterpretationPrinciple(sip_view);
return table;
}
}
public Viewer() {
// Initialize the agent's capabilities using the ViewerSemanticCapabilities class
setSemanticCapabilities(new ViewerSemanticCapabilities());
}
public void setup() {
super.setup();
Term album = Tools.AID2Term(new AID((String) getArguments()[0], AID.ISLOCALNAME));
getSemanticCapabilities().queryRef(ANY_IMAGE_CONTENT_IRE, album);
}
}
public JSAQuery(Node node) {
super();
if (node instanceof StringConstantNode) {
this.node = SL.formula("(false)");
} else this.node = node;
}