public ServiceDetailDTO serviceDetail()

in dubbo-admin-server/src/main/java/org/apache/dubbo/admin/controller/ServiceController.java [80:120]
36 lines of code
6 McCabe index (conditional complexity)

    public ServiceDetailDTO serviceDetail(@PathVariable String service, @PathVariable String env) {
        service = service.replace(Constants.ANY_VALUE, Constants.PATH_SEPARATOR);
        String group = Tool.getGroup(service);
        String version = Tool.getVersion(service);
        String interfaze = Tool.getInterface(service);
        List<Provider> providers = providerService.findByService(service);

        List<Consumer> consumers = consumerService.findByService(service);

        String application = null;
        if (providers != null && providers.size() > 0) {
            application = providers.get(0).getApplication();
        }
        MetadataIdentifier identifier = new MetadataIdentifier(interfaze, version, group, Constants.PROVIDER_SIDE, application);
        String metadata = providerService.getProviderMetaData(identifier);
        ServiceDetailDTO serviceDetailDTO = new ServiceDetailDTO();
        serviceDetailDTO.setConsumers(consumers);
        serviceDetailDTO.setProviders(providers);
        if (metadata != null) {
            try {
                // for dubbo version under 2.7, this metadata will represent as IP address, like 10.0.0.1.
                // So the json conversion will fail.
                String release = providerService.findVersionInApplication(application);
                // serialization compatible 2.x version
                if (release.startsWith("2")) {
                    org.apache.dubbo.admin.model.domain.FullServiceDefinition serviceDefinition = gson.fromJson(metadata, org.apache.dubbo.admin.model.domain.FullServiceDefinition.class);
                    serviceDetailDTO.setMetadata(serviceDefinition);
                } else {
                    FullServiceDefinition serviceDefinition = gson.fromJson(metadata, FullServiceDefinition.class);
                    serviceDetailDTO.setMetadata(serviceDefinition);
                }
            } catch (JsonParseException e) {
                throw new VersionValidationException("dubbo 2.6 does not support metadata");
            }
        }
        serviceDetailDTO.setConsumers(consumers);
        serviceDetailDTO.setProviders(providers);
        serviceDetailDTO.setService(service);
        serviceDetailDTO.setApplication(application);
        return serviceDetailDTO;
    }