org.eclipse.lyo.adapter.tdb.clients.OSLCTriplestoreAdapterResourceCreationClient.java Source code

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Here is the source code for org.eclipse.lyo.adapter.tdb.clients.OSLCTriplestoreAdapterResourceCreationClient.java

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/*********************************************************************************************
 * Copyright (c) 2014 Model-Based Systems Engineering Center, Georgia Institute of Technology.
 *                         http://www.mbse.gatech.edu/
 *                  http://www.mbsec.gatech.edu/research/oslc
 *
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  and Eclipse Distribution License v. 1.0 which accompanies this distribution.
 *
 *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 *  and the Eclipse Distribution License is available at
 *  http://www.eclipse.org/org/documents/edl-v10.php.
 *
 *  Contributors:
 *
 *      Axel Reichwein, Koneksys (axel.reichwein@koneksys.com)      
 *******************************************************************************************/
package org.eclipse.lyo.adapter.tdb.clients;

import java.io.IOException;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashSet;
import java.util.Set;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.apache.wink.client.handlers.BasicAuthSecurityHandler;
import org.apache.wink.client.handlers.ClientHandler;

import org.eclipse.lyo.adapter.tdb.services.OSLC4JTDBApplication;
import org.eclipse.lyo.oslc4j.client.OslcRestClient;
import org.eclipse.lyo.oslc4j.core.model.Link;
import org.eclipse.lyo.oslc4j.core.model.QueryCapability;
import org.eclipse.lyo.oslc4j.core.model.Service;
import org.eclipse.lyo.oslc4j.core.model.ServiceProvider;
import org.eclipse.lyo.oslc4j.core.model.ServiceProviderCatalog;
import org.eclipse.lyo.oslc4j.provider.jena.JenaProvidersRegistry;
//import org.eclipse.lyo.oslc4j.provider.json4j.Json4JProvidersRegistry;

import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.Property;
import com.hp.hpl.jena.rdf.model.RDFNode;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.rdf.model.ResourceFactory;

/**
 * The main() method of OSLCWebClient4CreatingSimulinkModel creates several new Simulink elements 
 * in a Simulink model using the OSLC Simulink adapter. First, the Simulink elements 
 * to be added to the model are created as POJOs. Second, the POJOs are transformed 
 * into RDF/XML by OSLC4J, and then sent as the body of HTTP requests to the creationfactory services
 * of the OSLC Simulink adapter. OSLCWebClient4CreatingSimulinkModel 
 * adds Simulink elements to a Simulink model through individual HTTP requests.
 *  
 * 
 * @author Axel Reichwein (axel.reichwein@koneksys.com)
 */
public class OSLCTriplestoreAdapterResourceCreationClient {

    private static final Set<Class<?>> PROVIDERS = new HashSet<Class<?>>();

    static {
        PROVIDERS.addAll(JenaProvidersRegistry.getProviders());
        // PROVIDERS.addAll(Json4JProvidersRegistry.getProviders());
    }

    public static void main(String[] args) {

        String baseHTTPURI = "http://localhost:" + OSLC4JTDBApplication.portNumber + "/oslc4jtdb";
        String projectId = "default";

        // URI of the HTTP request
        String tdbResourceCreationFactoryURI = baseHTTPURI + "/services/" + projectId + "/resources";

        // create RDF to add to the triplestore
        Model resourceRDFModel = ModelFactory.createDefaultModel();
        Resource resource = ResourceFactory
                .createResource("http://localhost:8585/oslc4jtdb/services/default/resources/newBlock4");
        Property property = ResourceFactory
                .createProperty("http://localhost:8585/oslc4jtdb/services/default/resources/newProperty4");
        RDFNode object = ResourceFactory
                .createResource("http://localhost:8585/oslc4jtdb/services/default/resources/newObject4");
        resourceRDFModel.add(resource, property, object);
        StringWriter out = new StringWriter();
        resourceRDFModel.write(out, "RDF/XML");
        resourceRDFModel.write(System.out);

        HttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost(tdbResourceCreationFactoryURI);
        String xml = out.toString();
        HttpEntity entity;
        try {
            entity = new ByteArrayEntity(xml.getBytes("UTF-8"));
            post.setEntity(entity);
            post.setHeader("Accept", "application/rdf+xml");
            HttpResponse response = client.execute(post);

            System.out.println("Response Code : " + response.getStatusLine().getStatusCode());

        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}