modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/WireBuilderImpl.java [204:246]:
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    protected void indexComponentsServicesAndReferences(Composite composite,
                                                        Map<String, Component> components,
                                                        Map<String, ComponentService> componentServices,
                                                        Map<String, ComponentReference> componentReferences) {

        for (Component component : composite.getComponents()) {

            // Index components by name
            components.put(component.getName(), component);

            ComponentService nonCallbackService = null;
            int nonCallbackServices = 0;
            for (ComponentService componentService : component.getServices()) {

                // Index component services by component name / service name
                String uri = component.getName() + '/' + componentService.getName();
                componentServices.put(uri, componentService);

                // count how many non-callback services there are
                // if there is only one the component name also acts as the
                // service name
                if (!componentService.isForCallback()) {
                    // Check how many non callback non-promoted services we have
                    if (nonCallbackServices == 0) {
                        nonCallbackService = componentService;
                    }
                    nonCallbackServices++;
                }
            }

            if (nonCallbackServices == 1) {
                // If we have a single non callback service, index it by
                // component name as well
                componentServices.put(component.getName(), nonCallbackService);
            }

            // Index references by component name / reference name
            for (ComponentReference componentReference : component.getReferences()) {
                String uri = component.getName() + '/' + componentReference.getName();
                componentReferences.put(uri, componentReference);
            }
        }
    }
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modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/CompositeComponentTypeBuilderImpl.java [170:212]:
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    private void indexComponentsServicesAndReferences(Composite composite,
                                                      Map<String, Component> components,
                                                      Map<String, ComponentService> componentServices,
                                                      Map<String, ComponentReference> componentReferences) {

        for (Component component : composite.getComponents()) {

            // Index components by name
            components.put(component.getName(), component);

            ComponentService nonCallbackService = null;
            int nonCallbackServices = 0;
            for (ComponentService componentService : component.getServices()) {

                // Index component services by component name / service name
                String uri = component.getName() + '/' + componentService.getName();
                componentServices.put(uri, componentService);

                // count how many non-callback services there are
                // if there is only one the component name also acts as the service name
                if (!componentService.isForCallback()) {

                    // Check how many non callback non-promoted services we have
                    if (nonCallbackServices == 0) {
                        nonCallbackService = componentService;
                    }
                    nonCallbackServices++;
                }
            }

            if (nonCallbackServices == 1) {
                // If we have a single non callback service, index it by
                // component name as well
                componentServices.put(component.getName(), nonCallbackService);
            }

            // Index references by component name / reference name
            for (ComponentReference componentReference : component.getReferences()) {
                String uri = component.getName() + '/' + componentReference.getName();
                componentReferences.put(uri, componentReference);
            }
        }
    }
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