org.apache.taverna.scufl2.wfdesc.WfdescAgent.java Source code

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Here is the source code for org.apache.taverna.scufl2.wfdesc.WfdescAgent.java

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package org.apache.taverna.scufl2.wfdesc;

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 *
*/

import java.io.IOException;
import java.net.URI;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.WebResource;

public class WfdescAgent {
    public static final URI DEFAULT_BASE = URI.create("http://sandbox.wf4ever-project.org/rosrs5/");

    Client client = Client.create();
    ObjectMapper mapper = new ObjectMapper();

    private WebResource base;

    public WfdescAgent() {
        base = client.resource(DEFAULT_BASE);
    }

    public WfdescAgent(URI baseURI) {
        base = client.resource(baseURI);
    }

    public static void main(String[] args) throws Exception {
        URI baseURI;
        if (args.length > 0) {
            baseURI = URI.create(args[0]);
        } else {
            baseURI = DEFAULT_BASE;
        }

        new WfdescAgent(baseURI).annotateT2flows();

    }

    public void annotateT2flows() throws JsonParseException, JsonMappingException, IOException {
        String query = "PREFIX ro: <http://purl.org/wf4ever/ro#> " + "" + " SELECT ?ro ?p ?s ?name WHERE { "
                + "?ro a ?x ;" + "    ?p ?s ." + "?s ro:name ?name ." + " FILTER REGEX(?name, \"t2flow$\") } ";

        for (JsonNode binding : sparql(query)) {
            System.out.print(binding.path("ro").path("value").asText());
            System.out.print(binding.path("p").path("value").asText());
            System.out.print(binding.path("s").path("value").asText());
            System.out.println(binding.path("name").path("value").asText());

        }

    }

    public JsonNode sparql(String query) throws JsonParseException, JsonMappingException, IOException {
        WebResource sparql = base.path("sparql");
        String json = sparql.queryParam("query", query)
                .accept("application/sparql-results+json", "application/json").type("application/json")
                .get(String.class);
        //System.out.println(json);
        JsonNode jsonNode = mapper.readValue(json, JsonNode.class);
        return jsonNode.path("results").path("bindings");
    }

}