/**
* @param viskoService
* @param inputDataURL
* @param serviceIndex
* @return
* @throws ExecutionException
*/
private String executeService(
edu.utep.trustlab.visko.ontology.viskoService.Service viskoService,
String inputDataURL,
int serviceIndex)
throws ExecutionException {
OWLKnowledgeBase kb = OWLFactory.createKB();
Service service = viskoService.getOWLSService().getIndividual();
Process process = service.getProcess();
ValueMap<Input, OWLValue> inputs =
OWLSParameterBinder.buildInputValueMap(
process, inputDataURL, job.getPipeline().getParameterBindings(), kb);
String outputDataURL = null;
if (inputs != null) {
ValueMap<Output, OWLValue> outputs;
if (job.isSimulated()) outputDataURL = ServiceSimulator.exec();
else {
outputs = exec.execute(process, inputs, kb);
OWLDataValue out = (OWLDataValue) outputs.getValue(process.getOutput());
outputDataURL = out.toString();
}
if (job.getProvenanceLogging()) {
pmlLogger.recordServiceInvocation(viskoService, inputDataURL, outputDataURL, inputs);
provLogger.recordServiceInvocation(viskoService, inputDataURL, outputDataURL, inputs);
}
}
return outputDataURL;
}
public void runZipCode() throws Exception {
OWLKnowledgeBase kb = OWLFactory.createKB();
service = kb.readService("http://localhost:8080/Temperatura/owls/getNameCar_NameCar.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
values.setDataValue(process.getInput("arg0"), "CARRO");
values = exec.execute(process, values);
// get the result
OWLIndividual out = values.getIndividualValue(process.getOutput());
// display the results
System.out.println("Executed service '" + service + "'");
System.out.println(
"Grounding WSDL: " + ((AtomicProcess) process).getGrounding().getDescriptionURL());
System.out.println("City = " + "College Park");
System.out.println("State = " + "MD");
System.out.println("Output = ");
System.out.println(Utils.formatRDF(out.toRDF()));
System.out.println();
}
public void runTranslator() throws Exception {
// language ontology
String langOnt = "http://www.daml.org/2003/09/factbook/languages#";
OWLKnowledgeBase kb = OWLFactory.createKB();
// we at least need RDFS reasoning to evaluate preconditions (to understand
// that process:Parameter is subclass of swrl:Variable)
kb.setReasoner("RDFS");
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/BabelFishTranslator.owl");
process = service.getProcess();
// get the references for these values
OWLIndividual English = kb.getIndividual(URI.create(langOnt + "English"));
OWLIndividual French = kb.getIndividual(URI.create(langOnt + "French"));
// initialize the input values to be empty
values = new ValueMap();
values.setDataValue(process.getInput("InputString"), "Hello world!");
values.setValue(process.getInput("InputLanguage"), English);
values.setValue(process.getInput("OutputLanguage"), French);
values = exec.execute(process, values);
// get the output using local name
outValue = values.getValue(process.getOutput()).toString();
// display the results
System.out.println("Executed service '" + service + "'");
System.out.println(
"Grounding WSDL: " + ((AtomicProcess) process).getGrounding().getDescriptionURL());
System.out.println("Output = " + outValue);
System.out.println();
}
public void runFindCheaperBook() throws Exception {
OWLKnowledgeBase kb = OWLFactory.createKB();
// we need a reasoner for example to work
kb.setReasoner("Pellet");
// we need to check preconditions so that local variables will be assigned values
exec.setPreconditionCheck(true);
// read the service description
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/FindCheaperBook.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
// use an arbitrary book name
values.setDataValue(process.getInput("BookName"), "City of Glass");
values = exec.execute(process, values);
// get the output values
OWLIndividual price = values.getIndividualValue(process.getOutput("BookPrice"));
String bookstore = values.getStringValue(process.getOutput("Bookstore"));
// display the results
System.out.println("Executed service " + service);
System.out.println("Bookstore = " + bookstore);
System.out.println("Price = ");
System.out.println(Utils.formatRDF(price.toRDF()));
System.out.println();
}
public void runBookPrice() throws Exception {
String currencyOnt = "http://www.daml.ecs.soton.ac.uk/ont/currency.owl#";
OWLKnowledgeBase kb = OWLFactory.createKB();
// read the service description
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/BookPrice.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
// use an arbitrary book name
inValue = "City of Glass";
// get the parameter using the local name
values.setDataValue(process.getInput("BookName"), inValue);
values.setValue(
process.getInput("Currency"), kb.getIndividual(URI.create(currencyOnt + "EUR")));
values = exec.execute(process, values);
// get the output param using the index
OWLIndividual out = values.getIndividualValue(process.getOutput());
// display the results
System.out.println("Executed service " + service);
System.out.println("Book Name = " + inValue);
System.out.println("Price = ");
System.out.println(Utils.formatRDF(out.toRDF()));
System.out.println();
}
public void runBookFinder() throws Exception {
OWLKnowledgeBase kb = OWLFactory.createKB();
// read the service description
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/BookFinder.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
// use any book name
inValue = "City of Glass";
// get the parameter using the local name
values.setDataValue(process.getInput("BookName"), inValue);
values = exec.execute(process, values);
// get the output param using the index
OWLIndividual out = values.getIndividualValue(process.getOutput());
// display the results
System.out.println("Executing OWL-S service " + service);
System.out.println(
"Grounding WSDL: "
+ service
.getGrounding()
.getAtomicGrounding((AtomicProcess) process)
.getDescriptionURL());
System.out.println("BookName = " + inValue);
System.out.println("BookInfo = ");
System.out.println(Utils.formatRDF(out.toRDF()));
System.out.println();
}
/**
* Create a Sequence process for the processes of given services. Creates the data flow assuming
* each service has one output and one input (except first and last one).
*/
CompositeProcess createSequenceProcess(
final CompositeProcess compositeProcess, final List<Service> services) {
final Sequence sequence = ont.createSequence(null);
compositeProcess.setComposedOf(sequence);
final Perform[] performs = new Perform[services.size()];
for (int i = 0; i < services.size(); i++) {
final Service s = services.get(i);
final Process p = s.getProcess();
performs[i] = ont.createPerform(null);
performs[i].setProcess(p);
sequence.addComponent(performs[i]);
if (i > 0) {
final Perform prevPerform = performs[i - 1];
final Input input = p.getInputs().get(0);
final Output output = prevPerform.getProcess().getOutputs().get(0);
// the value of 'input' is the value of 'output' from 'prevPerform'
performs[i].addBinding(input, prevPerform, output);
}
}
final Perform firstPerform = performs[0];
final Perform lastPerform = performs[services.size() - 1];
final boolean createInput = firstPerform.getProcess().getInputs().size() > 0;
final boolean createOutput = lastPerform.getProcess().getOutputs().size() > 0;
if (createInput) {
final Input input = firstPerform.getProcess().getInputs().get(0);
final Input newInput = ont.createInput(URIUtils.createURI(baseURI, "TestInput"));
newInput.setLabel(input.getLabel(null), null);
newInput.setParamType(input.getParamType());
newInput.setProcess(compositeProcess);
// input of the first perform is directly read from the input of the composite process
performs[0].addBinding(input, OWLS.Process.ThisPerform, newInput);
}
if (createOutput) {
final Output output = lastPerform.getProcess().getOutputs().get(0);
final Output newOutput = ont.createOutput(URIUtils.createURI(baseURI, "TestOutput"));
newOutput.setLabel(output.toPrettyString(), null);
newOutput.setParamType(output.getParamType());
newOutput.setProcess(compositeProcess);
// the output of the composite process is the output pf last process
final Result result = ont.createResult(null);
result.addBinding(newOutput, lastPerform, output);
compositeProcess.addResult(result);
}
return compositeProcess;
}
/**
* Create a Profile for the composite service. We only set the input and output of the profile
* based on the process.
*/
Profile createProfile(final Profile profile, final Process process) {
for (Input input : process.getInputs()) {
profile.addInput(input);
}
for (Output output : process.getOutputs()) {
profile.addOutput(output);
}
return profile;
}
public void runTest() throws Exception {
// create an OWL-S knowledge base
final OWLKnowledgeBase kb = OWLFactory.createKB();
// create an empty ontology in this KB
ont = kb.createOntology(URIUtils.standardURI(baseURI));
// create an execution engine
final ProcessExecutionEngine exec = OWLSFactory.createExecutionEngine();
// load two services
final Service s1 = kb.readService(ExampleURIs.BOOK_FINDER_OWLS12);
final Service s2 = kb.readService(ExampleURIs.BN_BOOK_PRICE_OWLS12);
// put the services in a list
final List<Service> services = new ArrayList<Service>();
services.add(s1);
services.add(s2);
// create a new service as a sequence of the list
final Service s = createSequenceService(services);
// print the description of new service to standard output
ont.write(System.out, baseURI);
System.out.println();
// get the process of the new service
final Process process = s.getProcess();
// initialize the input values to be empty
ValueMap<Input, OWLValue> inputs = new ValueMap<Input, OWLValue>();
// get the parameter using the local name
inputs.setValue(process.getInputs().get(0), kb.createDataValue("City of Glass"));
// execute the service
System.out.print("Executing...");
ValueMap<Output, OWLValue> outputs = exec.execute(process, inputs, kb);
System.out.println("done");
// get the output parameter using the index
final OWLIndividual outValue = outputs.getIndividualValue(process.getOutput());
// display the result
System.out.println("Book Price = ");
System.out.println(Utils.formatRDF(outValue.toRDF(true, true)));
System.out.println();
}
public void runCurrencyConverter() throws Exception {
String currencyOnt = "http://www.daml.ecs.soton.ac.uk/ont/currency.owl#";
String conceptsOnt = "http://www.mindswap.org/2004/owl-s/concepts.owl#";
OWLKnowledgeBase kb = OWLFactory.createKB();
// read the service description
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/CurrencyConverter.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
OWLIndividual EUR = kb.getIndividual(URI.create(currencyOnt + "EUR"));
values.setValue(process.getInput("OutputCurrency"), EUR);
OWLIndividual USD = kb.getIndividual(URI.create(currencyOnt + "USD"));
OWLClass Price = kb.getClass(URI.create(conceptsOnt + "Price"));
OWLObjectProperty currency = kb.getObjectProperty(URI.create(conceptsOnt + "currency"));
OWLDataProperty amount = kb.getDataProperty(URI.create(conceptsOnt + "amount"));
OWLIndividual inputPrice = kb.createInstance(Price);
inputPrice.addProperty(currency, USD);
inputPrice.addProperty(amount, "100");
// get the parameter using the local name
values.setValue(process.getInput("InputPrice"), inputPrice);
values = exec.execute(process, values);
// get the output param using the index
OWLIndividual out = values.getIndividualValue(process.getOutput());
// display the results
System.out.println("Executed service " + service);
System.out.println(
"Grounding WSDL: " + ((AtomicProcess) process).getGrounding().getDescriptionURL());
System.out.println("Input = ");
System.out.println(Utils.formatRDF(inputPrice.toRDF()));
System.out.println("Output = ");
System.out.println(Utils.formatRDF(out.toRDF()));
System.out.println();
}
public void runDictionary() throws Exception {
OWLKnowledgeBase kb = OWLFactory.createKB();
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/Dictionary.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
inValue = "hello";
values.setDataValue(process.getInput("InputString"), inValue);
values = exec.execute(process, values);
// get the output
OWLDataValue out = (OWLDataValue) values.getValue(process.getOutput());
// display the results
System.out.println("Executed service '" + service + "'");
System.out.println(
"Grounding WSDL: " + ((AtomicProcess) process).getGrounding().getDescriptionURL());
System.out.println("Input = " + inValue);
System.out.println("Output = " + out.toString());
System.out.println();
}
public void runFrenchDictionary() throws Exception {
OWLKnowledgeBase kb = OWLFactory.createKB();
// we need a reasoner that can evaluate the precondition of the translator
kb.setReasoner("Pellet");
service = kb.readService("http://www.mindswap.org/2004/owl-s/1.1/FrenchDictionary.owl");
process = service.getProcess();
// initialize the input values to be empty
values = new ValueMap();
inValue = "mere";
values.setDataValue(process.getInput("InputString"), inValue);
values = exec.execute(process, values);
// get the output using local name
outValue = values.getValue(process.getOutputs().getParameter("OutputString")).toString();
// display the results
System.out.println("Executed service " + service);
System.out.println("Input = " + inValue);
System.out.println("Output = " + outValue);
System.out.println();
}
/** @return The name of the process, its URI, or its anon identifier. */
public String getProcessName() {
String pn = getProcess().getName();
pn = (pn != null) ? pn : (process.isAnon()) ? process.getAnonID() : process.getURI().toString();
return pn;
}
/* @see org.mindswap.owls.process.variable.ProcessVar#setProcess(org.mindswap.owls.process.Process) */
public void setProcess(final Process process) {
process.addInput(this);
}
/* (non-Javadoc)
* @see org.mindswap.owls.process.Parameter#getService()
*/
public Service getService() {
Process process = getProcess();
return (process == null) ? null : process.getService();
}
/* (non-Javadoc)
* @see org.mindswap.owls.process.Parameter#getProcess(org.mindswap.owls.process.Process)
*/
public void setProcess(Process process) {
process.addParameter(this);
}
