/**
* Executes the specified {@code scriptResource}.
*
* <p>The output is either a GraphNode or a response with the media type specified by the
* producedType property of the associated script.
*
* <p>GraphNodes can be rendered by Renderlets registered for the type of the GraphNode.
*
* @param scriptResource The resource (URI).
* @param bindings Name/Value pairs of Java {@code Object}s made accessible to script
* @return The value returned from the execution of the script. Either a GraphNode or a Response.
* @throws ScriptException If an error occurrs in the script.
* @throws NoEngineException If no engine can be found
* @see org.apache.clerezza.rdf.ontologies.SCRIPT#Script
* @see org.apache.clerezza.rdf.ontologies.SCRIPT#producedType
* @see org.apache.clerezza.platform.typerendering.Renderlet
*/
public Object execute(NonLiteral scriptResource, Bindings bindings)
throws ScriptException, NoEngineException {
MGraph contentGraph = cgProvider.getContentGraph();
String scriptString = null;
String scriptLanguage = null;
String scriptLanguageVersion = null;
String scriptProducedType = "text/plain";
GraphNode scriptNode = new GraphNode(scriptResource, contentGraph);
Iterator<Resource> it = scriptNode.getObjects(SCRIPT.scriptLanguage);
scriptLanguage =
LiteralFactory.getInstance().createObject(String.class, (TypedLiteral) it.next());
it = scriptNode.getObjects(SCRIPT.scriptLanguageVersion);
scriptLanguageVersion =
LiteralFactory.getInstance().createObject(String.class, (TypedLiteral) it.next());
it = scriptNode.getObjects(SCRIPT.producedType);
if (it.hasNext()) {
scriptProducedType =
LiteralFactory.getInstance().createObject(String.class, (TypedLiteral) it.next());
}
scriptString = new String(contentHandler.getData((UriRef) scriptResource));
Object result = execute(scriptString, bindings, scriptLanguage, scriptLanguageVersion);
if (result instanceof GraphNode) {
return result;
}
return Response.ok(result, MediaType.valueOf(scriptProducedType)).build();
}