ServiceInstanceTopology build()

in oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/ServiceInstanceTopologyBuilder.java [58:140]
65 lines of code
9 McCabe index (conditional complexity)

    ServiceInstanceTopology build(List<Call.CallDetail> serviceInstanceRelationClientCalls,
                                  List<Call.CallDetail> serviceInstanceRelationServerCalls) {

        Map<String, ServiceInstanceNode> nodes = new HashMap<>();
        List<Call> calls = new LinkedList<>();
        HashMap<String, Call> callMap = new HashMap<>();

        /*
         * Build Calls and Nodes based on client side detected data.
         */
        for (Call.CallDetail clientCall : serviceInstanceRelationClientCalls) {
            final IDManager.ServiceInstanceID.InstanceIDDefinition sourceServiceInstance = IDManager.ServiceInstanceID.analysisId(
                clientCall.getSource());
            final IDManager.ServiceID.ServiceIDDefinition sourceService = IDManager.ServiceID.analysisId(
                sourceServiceInstance.getServiceId());

            IDManager.ServiceInstanceID.InstanceIDDefinition destServiceInstance = IDManager.ServiceInstanceID.analysisId(
                clientCall.getTarget());
            final IDManager.ServiceID.ServiceIDDefinition destService = IDManager.ServiceID.analysisId(
                destServiceInstance.getServiceId());

            if (!nodes.containsKey(clientCall.getSource())) {
                nodes.put(clientCall.getSource(), buildNode(sourceService, sourceServiceInstance));
            }
            if (!nodes.containsKey(clientCall.getTarget())) {
                final ServiceInstanceNode node = buildNode(destService, destServiceInstance);
                nodes.put(clientCall.getTarget(), node);
            }

            if (!callMap.containsKey(clientCall.getId())) {
                Call call = new Call();

                callMap.put(clientCall.getId(), call);
                call.setSource(clientCall.getSource());
                call.setTarget(clientCall.getTarget());
                call.setId(clientCall.getId());
                call.addDetectPoint(DetectPoint.CLIENT);
                calls.add(call);
            }
        }

        /*
         * Build Calls and Nodes based on server side detected data.
         */
        for (Call.CallDetail serverCall : serviceInstanceRelationServerCalls) {
            final IDManager.ServiceInstanceID.InstanceIDDefinition sourceServiceInstance = IDManager.ServiceInstanceID.analysisId(
                serverCall.getSource());
            final IDManager.ServiceID.ServiceIDDefinition sourceService = IDManager.ServiceID.analysisId(
                sourceServiceInstance.getServiceId());

            IDManager.ServiceInstanceID.InstanceIDDefinition destServiceInstance = IDManager.ServiceInstanceID.analysisId(
                serverCall.getTarget());
            final IDManager.ServiceID.ServiceIDDefinition destService = IDManager.ServiceID.analysisId(
                destServiceInstance.getServiceId());

            if (!nodes.containsKey(serverCall.getSource())) {
                nodes.put(serverCall.getSource(), buildNode(sourceService, sourceServiceInstance));
            }
            if (!nodes.containsKey(serverCall.getTarget())) {
                final ServiceInstanceNode node = buildNode(destService, destServiceInstance);
                nodes.put(serverCall.getTarget(), node);
            }

            if (!callMap.containsKey(serverCall.getId())) {
                Call call = new Call();

                callMap.put(serverCall.getId(), call);
                call.setSource(serverCall.getSource());
                call.setTarget(serverCall.getTarget());
                call.setId(serverCall.getId());
                call.addDetectPoint(DetectPoint.SERVER);
                calls.add(call);
            } else {
                Call call = callMap.get(serverCall.getId());
                call.addDetectPoint(DetectPoint.SERVER);
            }
        }

        ServiceInstanceTopology topology = new ServiceInstanceTopology();
        topology.getCalls().addAll(calls);
        topology.getNodes().addAll(nodes.values());
        return topology;
    }