Examples with DataService org.apache.jena.fuseki.server.DataService used on opensource projects

Example 1 with DataService

use of org.apache.jena.fuseki.server.DataService in project jena by apache.

the class TestEmbeddedFuseki method embedded_04.

@Test
public void embedded_04() {
    DatasetGraph dsg = dataset();
    Txn.executeWrite(dsg, () -> {
        Quad q = SSE.parseQuad("(_ :s :p _:b)");
        dsg.add(q);
    });
    // A service with just being able to do quads operations
    // That is, GET, POST, PUT on  "/data" in N-quads and TriG. 
    DataService dataService = new DataService(dsg);
    dataService.addEndpoint(OperationName.Quads_RW, "");
    dataService.addEndpoint(OperationName.Query, "");
    dataService.addEndpoint(OperationName.Update, "");
    int port = FusekiLib.choosePort();
    FusekiEmbeddedServer server = FusekiEmbeddedServer.create().setPort(port).add("/data", dataService).build();
    server.start();
    try {
        // Put data in.
        String data = "(graph (:s :p 1) (:s :p 2) (:s :p 3))";
        Graph g = SSE.parseGraph(data);
        HttpEntity e = graphToHttpEntity(g);
        HttpOp.execHttpPut("http://localhost:" + port + "/data", e);
        // Get data out.
        try (TypedInputStream in = HttpOp.execHttpGet("http://localhost:" + port + "/data")) {
            Graph g2 = GraphFactory.createDefaultGraph();
            RDFDataMgr.read(g2, in, RDFLanguages.contentTypeToLang(in.getContentType()));
            assertTrue(g.isIsomorphicWith(g2));
        }
        // Query.
        query("http://localhost:" + port + "/data", "SELECT * { ?s ?p ?o}", qExec -> {
            ResultSet rs = qExec.execSelect();
            int x = ResultSetFormatter.consume(rs);
            assertEquals(3, x);
        });
        // Update
        UpdateRequest req = UpdateFactory.create("CLEAR DEFAULT");
        UpdateExecutionFactory.createRemote(req, "http://localhost:" + port + "/data").execute();
        // Query again.
        query("http://localhost:" + port + "/data", "SELECT * { ?s ?p ?o}", qExec -> {
            ResultSet rs = qExec.execSelect();
            int x = ResultSetFormatter.consume(rs);
            assertEquals(0, x);
        });
    } finally {
        server.stop();
    }
}

Example 2 with DataService

use of org.apache.jena.fuseki.server.DataService in project jena by apache.

the class TestEmbeddedFuseki method embedded_20.

@Test
public void embedded_20() {
    DatasetGraph dsg = dataset();
    int port = FusekiLib.choosePort();
    DataService dSrv = new DataService(dsg);
    dSrv.addEndpoint(OperationName.Query, "q");
    dSrv.addEndpoint(OperationName.GSP_R, "gsp");
    FusekiEmbeddedServer server = FusekiEmbeddedServer.create().add("/dsrv1", dSrv).setPort(port).build();
    server.start();
    try {
        query("http://localhost:" + port + "/dsrv1/q", "ASK{}", x -> {
        });
        String x1 = HttpOp.execHttpGetString("http://localhost:" + port + "/dsrv1/gsp");
        assertNotNull(x1);
    } finally {
        server.stop();
    }
}

Example 3 with DataService

use of org.apache.jena.fuseki.server.DataService in project jena by apache.

the class FusekiBuilder method buildDataService.

/** Build a DatasetRef starting at Resource svc */
private static DataService buildDataService(Resource svc, DatasetDescriptionRegistry dsDescMap) {
    if (log.isDebugEnabled())
        log.debug("Service: " + nodeLabel(svc));
    Resource datasetDesc = ((Resource) getOne(svc, "fu:dataset"));
    Dataset ds = getDataset(datasetDesc, dsDescMap);
    // In case the assembler included ja:contents
    DataService dataService = new DataService(ds.asDatasetGraph());
    addServiceEP(dataService, OperationName.Query, svc, pServiceQueryEP);
    addServiceEP(dataService, OperationName.Update, svc, pServiceUpdateEP);
    addServiceEP(dataService, OperationName.Upload, svc, pServiceUploadEP);
    addServiceEP(dataService, OperationName.GSP_R, svc, pServiceReadGraphStoreEP);
    addServiceEP(dataService, OperationName.GSP_RW, svc, pServiceReadWriteGraphStoreEP);
    addServiceEP(dataService, OperationName.Quads_R, svc, pServiceReadQuadsEP);
    addServiceEP(dataService, OperationName.Quads_RW, svc, pServiceReadWriteQuadsEP);
    // In the config file they are also implicit when using GSP.
    if (!dataService.getOperation(OperationName.GSP_RW).isEmpty() || !dataService.getOperation(OperationName.Quads_RW).isEmpty()) {
        dataService.addEndpoint(OperationName.Quads_RW, "");
    } else if (!dataService.getOperation(OperationName.GSP_R).isEmpty() || !dataService.getOperation(OperationName.Quads_R).isEmpty()) {
        dataService.addEndpoint(OperationName.Quads_R, "");
    }
    return dataService;
}

Example 4 with DataService

use of org.apache.jena.fuseki.server.DataService in project jena by apache.

the class FusekiBuilder method buildDataService.

/** Build a DataService starting at Resource svc */
public static DataService buildDataService(DatasetGraph dsg, boolean allowUpdate) {
    DataService dataService = new DataService(dsg);
    addServiceEP(dataService, OperationName.Query, "query");
    addServiceEP(dataService, OperationName.Query, "sparql");
    if (!allowUpdate) {
        addServiceEP(dataService, OperationName.GSP_R, "data");
        addServiceEP(dataService, OperationName.Quads_R, "");
        return dataService;
    }
    addServiceEP(dataService, OperationName.GSP_RW, "data");
    addServiceEP(dataService, OperationName.GSP_R, "get");
    addServiceEP(dataService, OperationName.Update, "update");
    addServiceEP(dataService, OperationName.Upload, "upload");
    addServiceEP(dataService, OperationName.Quads_RW, "");
    return dataService;
}

Example 5 with DataService

use of org.apache.jena.fuseki.server.DataService in project jena by apache.

the class FusekiBuilder method buildDataAccessPoint.

/** Build a DataAccessPoint, including DataService at Resource svc */
public static DataAccessPoint buildDataAccessPoint(Resource svc, DatasetDescriptionRegistry dsDescMap) {
    RDFNode n = FusekiLib.getOne(svc, "fu:name");
    if (!n.isLiteral())
        throw new FusekiConfigException("Not a literal for access point name: " + FmtUtils.stringForRDFNode(n));
    Literal object = n.asLiteral();
    if (object.getDatatype() != null && !object.getDatatype().equals(XSDDatatype.XSDstring))
        Fuseki.configLog.error(format("Service name '%s' is not a string", FmtUtils.stringForRDFNode(object)));
    String name = object.getLexicalForm();
    name = DataAccessPoint.canonical(name);
    DataService dataService = FusekiBuilder.buildDataService(svc, dsDescMap);
    DataAccessPoint dataAccess = new DataAccessPoint(name, dataService);
    return dataAccess;
}