Package com.tinkerpop.blueprints

Examples of com.tinkerpop.blueprints.Edge

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    public void testEdgesById() throws Exception {
        String processInstance = PROCESS_ENTITY_NAME + "/2014-01-01T01:00Z";
        Vertex vertex = service.getGraph().getVertices(
                RelationshipProperty.NAME.getName(), processInstance).iterator().next();

        Edge edge = vertex.getEdges(Direction.OUT,
                RelationshipLabel.PROCESS_CLUSTER_EDGE.getName()).iterator().next();
        Vertex toVertex = edge.getVertex(Direction.IN);

        LineageMetadataResource resource = new LineageMetadataResource();
        Response response = resource.getEdge(String.valueOf(edge.getId()));
        Assert.assertEquals(response.getStatus(), Response.Status.OK.getStatusCode());

        Map results = (Map) JSONValue.parse(response.getEntity().toString());
        Map vertexProperties = (Map) results.get(LineageMetadataResource.RESULTS);

        Assert.assertEquals(vertexProperties.get("_id").toString(), edge.getId().toString());
        Assert.assertEquals(vertexProperties.get("_outV"), vertex.getId());
        Assert.assertEquals(vertexProperties.get("_inV"), toVertex.getId());
    }
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    @Produces({MediaType.APPLICATION_JSON})
    public Response getEdge(@PathParam("id") final String edgeId) {
        checkIfMetadataMappingServiceIsEnabled();
        LOG.info("Get vertex for edgeId= " + edgeId);
        try {
            Edge edge = getGraph().getEdge(edgeId);
            if (edge == null) {
                String message = "Edge with [" + edgeId + "] cannot be found.";
                LOG.info(message);
                throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND)
                        .entity(JSONObject.quote(message)).build());
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        return vertex;
    }

    protected Edge addEdge(Vertex fromVertex, Vertex toVertex, String edgeLabel) {
        Edge edge = findEdge(fromVertex, toVertex, edgeLabel);
        return edge != null ? edge : fromVertex.addEdge(edgeLabel, toVertex);
    }
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        Edge edge = findEdge(fromVertex, toVertex, edgeLabel);
        return edge != null ? edge : fromVertex.addEdge(edgeLabel, toVertex);
    }

    protected void removeEdge(Vertex fromVertex, Vertex toVertex, String edgeLabel) {
        Edge edge = findEdge(fromVertex, toVertex, edgeLabel);
        if (edge != null) {
            getGraph().removeEdge(edge);
        }
    }
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            getGraph().removeEdge(edge);
        }
    }

    protected void removeEdge(Vertex fromVertex, Object toVertexName, String edgeLabel) {
        Edge edge = findEdge(fromVertex, toVertexName, edgeLabel);
        if (edge != null) {
            getGraph().removeEdge(edge);
        }
    }
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    protected Edge findEdge(Vertex fromVertex, Vertex toVertex, String edgeLabel) {
        return findEdge(fromVertex, toVertex.getProperty(RelationshipProperty.NAME.getName()), edgeLabel);
    }

    protected Edge findEdge(Vertex fromVertex, Object toVertexName, String edgeLabel) {
        Edge edgeToFind = null;
        for (Edge edge : fromVertex.getEdges(Direction.OUT, edgeLabel)) {
            if (edge.getVertex(Direction.IN).getProperty(RelationshipProperty.NAME.getName()).equals(toVertexName)) {
                edgeToFind = edge;
                break;
            }
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    private void verifyUpdatedEdges(Feed newFeed) {
        Vertex feedVertex = getEntityVertex(newFeed.getName(), RelationshipType.FEED_ENTITY);

        // groups
        Edge edge = feedVertex.getEdges(Direction.OUT, RelationshipLabel.GROUPS.getName()).iterator().next();
        Assert.assertEquals(edge.getVertex(Direction.IN).getProperty("name"), "reporting");

        // tags
        edge = feedVertex.getEdges(Direction.OUT, "classified-as").iterator().next();
        Assert.assertEquals(edge.getVertex(Direction.IN).getProperty("name"), "Secured");
        edge = feedVertex.getEdges(Direction.OUT, "source").iterator().next();
        Assert.assertEquals(edge.getVertex(Direction.IN).getProperty("name"), "data-warehouse");

        // new cluster
        List<String> actual = new ArrayList<String>();
        for (Edge clusterEdge : feedVertex.getEdges(Direction.OUT, RelationshipLabel.FEED_CLUSTER_EDGE.getName())) {
            actual.add(clusterEdge.getVertex(Direction.IN).<String>getProperty("name"));
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    private void verifyUpdatedEdges(Process newProcess) {
        Vertex processVertex = getEntityVertex(newProcess.getName(), RelationshipType.PROCESS_ENTITY);

        // cluster
        Edge edge = processVertex.getEdges(Direction.OUT,
                RelationshipLabel.PROCESS_CLUSTER_EDGE.getName()).iterator().next();
        Assert.assertEquals(edge.getVertex(Direction.IN).getProperty("name"), bcpCluster.getName());

        // inputs
        edge = processVertex.getEdges(Direction.IN, RelationshipLabel.FEED_PROCESS_EDGE.getName()).iterator().next();
        Assert.assertEquals(edge.getVertex(Direction.OUT).getProperty("name"),
                newProcess.getInputs().getInputs().get(0).getFeed());

        // outputs
        for (Edge e : processVertex.getEdges(Direction.OUT, RelationshipLabel.PROCESS_FEED_EDGE.getName())) {
            Assert.fail("there should not be any edges to output feeds" + e);
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            if(Kind.literal.equals(GraphUtils.getKindOf(vertex))) {
                // a literal with no type information should always been considered a string literal
            } else {
                Iterator<Edge> typeIterator = vertex.getEdges(Direction.OUT, IndexableGraphBackedFinderService.TYPE_EDGE_NAME).iterator();
                if(typeIterator.hasNext()) {
                    Edge toType = typeIterator.next();
                    Vertex type = toType.getVertex(Direction.IN);
                    // Do not use ClassLiteral here as this method must be blazing fast
                    return IndexableGraphBackedFinderService.classTransformer.extractClassIn(service.getDriver().getValue(type).toString());
                }
            }
    }
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            oldVertices.put(inVertex, e);
        }
        for (Object v : values.entrySet()) {
            Vertex valueVertex = service.getVertexFor(v, CascadeType.REFRESH, objectsBeingAccessed);
            if (valueVertex!=null && oldVertices.containsKey(valueVertex)) {
                Edge oldEdge = oldVertices.remove(valueVertex);
                GraphUtils.removeSafely(database, oldEdge);
                if (toCascade.contains(CascadeType.REMOVE)) {
                    service.deleteOutEdgeVertex(objectVertex, valueVertex, v, objectsBeingAccessed);
                }
            }
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Related Classes of com.tinkerpop.blueprints.Edge

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  • com.dooapp.gaedo.blueprints.GraphUtils
  • com.dooapp.gaedo.blueprints.indexable.IndexableGraphBackedFinderService
  • com.dooapp.gaedo.blueprints.operations.Deleter
  • com.dooapp.gaedo.blueprints.operations.Loader
  • com.dooapp.gaedo.blueprints.operations.Updater
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