TestEndpointTest.java

/*
   This file is part of the LarKC platform 
   http://www.larkc.eu/

   Copyright 2010 LarKC project consortium

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 */
package eu.larkc.core.endpoint;

import java.util.regex.Pattern;

import junit.framework.Assert;

import org.junit.Test;
import org.restlet.data.Form;
import org.restlet.data.MediaType;
import org.restlet.data.Reference;
import org.restlet.representation.Representation;
import org.restlet.resource.ClientResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import eu.larkc.core.management.MgmtTest;
import eu.larkc.shared.Resources;
import eu.larkc.shared.SampleQueries;
import eu.larkc.shared.SampleRdfWorkflows;

/**
 * This class tests the TestEndpoint.
 * 
 * @author Norbert Lanzanasto, Christoph Fuchs
 * 
 */
public class TestEndpointTest extends MgmtTest {

	private static Logger logger = LoggerFactory
			.getLogger(TestEndpointTest.class);

	/**
	 * Tries to get the URL of the TestEndpoint.
	 * 
	 * @throws Exception
	 */
	@Test
	public void getUrlOfTestEndpoint() throws Exception {

		ClientResource rdfResource = new ClientResource(
				Resources.MGMT_WORKFLOWS_URL);

		Form form = new Form();
		form.add("workflow", SampleRdfWorkflows.getWorkflowWithTestEndpoint());
		Representation rep = form.getWebRepresentation();
		rep.setMediaType(MediaType.APPLICATION_RDF_XML);
		Representation rdfResponse = rdfResource.post(rep);
		Reference url = rdfResponse.getLocationRef();
		ClientResource endpointResource = new ClientResource(url
				+ "/endpoint?urn=urn:eu.larkc.endpoint.test.ep1");
		Representation endpointResponse = endpointResource.get();
		String responseUrl = endpointResponse.getLocationRef().toString();

		// The \\d{4} part means exactly 4 digits since we don't know the exact
		// port number (usually 8182) if we run multiple tests.
		String regexIP = "\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}";
		String regexPort = "\\d{4}";

		String fullRegex = "http://" + regexIP + ":" + regexPort
				+ "/testendpoint";

		// As long as the (http://IP:port/testendpoint) regular expression
		// matches, we are good
		Assert.assertTrue(Pattern.matches(fullRegex, responseUrl));

		// delete workflow
		ClientResource workflowResource = new ClientResource(url);
		workflowResource.delete();
	}

	/**
	 * Tries to get results from the TestEndpoint running on
	 * http://localhost:8183/testendpoint.
	 * 
	 * @throws Exception
	 */
	@Test
	public void getResultsFromTestEndpoint() throws Exception {

		// construct workflow
		ClientResource rdfResource = new ClientResource(
				Resources.MGMT_WORKFLOWS_URL);

		Form form = new Form();
		form.add("workflow", SampleRdfWorkflows.getWorkflowWithTestEndpoint());
		Representation rep = form.getWebRepresentation();
		rep.setMediaType(MediaType.APPLICATION_RDF_XML);
		Representation rdfResponse = rdfResource.post(rep);
		Reference url = rdfResponse.getLocationRef();

		// retrieve endpoint
		ClientResource endpointResource = new ClientResource(url
				+ "/endpoint?urn=urn:eu.larkc.endpoint.test.ep1");
		Representation endpointResponse = endpointResource.get();

		Reference testEndpointUrl = endpointResponse.getLocationRef();
		logger.debug("TestEndpoint URL: " + testEndpointUrl);

		// execute query
		ClientResource testEndpointResource = new ClientResource(
				testEndpointUrl);

		Form queryForm = new Form();
		queryForm.add("query", SampleQueries.WHO_KNOWS_FRANK);
		Representation queryRep = queryForm.getWebRepresentation();

		// TODO Find out why we get a "Communication Error (1001) - Connection
		// refused" if the test is run successively after the
		// getUrlOfTestEndpoint test.
		testEndpointResource.post(queryRep);

		// retrieve results
		ClientResource resultsResource = new ClientResource(testEndpointUrl);
		Representation result = resultsResource.get();

		logger.debug(result.getText());
		Assert.assertEquals(200, resultsResource.getStatus().getCode());

		// delete workflow
		ClientResource workflowResource = new ClientResource(url);
		workflowResource.delete();
	}
}