Examples with ServiceDiscoveryImplConfig org.wso2.carbon.apimgt.core.configuration.models.ServiceDiscoveryImplConfig used on opensource projects

Example 1 with ServiceDiscoveryImplConfig

use of org.wso2.carbon.apimgt.core.configuration.models.ServiceDiscoveryImplConfig in project carbon-apimgt by wso2.

the class ServiceDiscoveryInPublisherTestCase method testDiscoverServiceEndpoints.

@Test
public void testDiscoverServiceEndpoints() throws Exception {
    /* Create a impl config without any namespace or criteria */
    ServiceDiscoveryImplConfig sdImplConfig = new ServiceDiscoveryImplConfig();
    sdImplConfig.setImplClass("org.wso2.carbon.apimgt.core.impl.ServiceDiscovererTestClass");
    sdImplConfig.setImplParameters(new HashMap<>());
    /* Create a impl config with a namespace set */
    Map<String, String> implParamWithNamespace = new HashMap<>();
    implParamWithNamespace.put(APIMgtConstants.ServiceDiscoveryConstants.NAMESPACE, "dev");
    ServiceDiscoveryImplConfig sdImplConfigWithNamespace = new ServiceDiscoveryImplConfig();
    sdImplConfigWithNamespace.setImplClass("org.wso2.carbon.apimgt.core.impl.ServiceDiscovererTestClass");
    sdImplConfigWithNamespace.setImplParameters(implParamWithNamespace);
    /* Create a impl config with a criteria set */
    Map<String, String> implParamWithCriteria = new HashMap<>();
    implParamWithCriteria.put(APIMgtConstants.ServiceDiscoveryConstants.CRITERIA, "app=web");
    ServiceDiscoveryImplConfig sdImplConfigWitCriteria = new ServiceDiscoveryImplConfig();
    sdImplConfigWitCriteria.setImplClass("org.wso2.carbon.apimgt.core.impl.ServiceDiscovererTestClass");
    sdImplConfigWitCriteria.setImplParameters(implParamWithCriteria);
    /* Create a impl config with both a namespace and a criteria is set */
    Map<String, String> implParamWithNamespaceAndCriteria = new HashMap<>();
    implParamWithNamespaceAndCriteria.put(APIMgtConstants.ServiceDiscoveryConstants.NAMESPACE, "dev");
    implParamWithNamespaceAndCriteria.put(APIMgtConstants.ServiceDiscoveryConstants.CRITERIA, "app=web");
    ServiceDiscoveryImplConfig sdImplConfigWithNamespaceNCriteria = new ServiceDiscoveryImplConfig();
    sdImplConfigWithNamespaceNCriteria.setImplClass("org.wso2.carbon.apimgt.core.impl.ServiceDiscovererTestClass");
    sdImplConfigWithNamespaceNCriteria.setImplParameters(implParamWithNamespaceAndCriteria);
    /* Create the implementationsList adding all four impl configs */
    List<ServiceDiscoveryImplConfig> implementationsList = new ArrayList<>();
    implementationsList.add(sdImplConfig);
    implementationsList.add(sdImplConfigWithNamespace);
    implementationsList.add(sdImplConfigWitCriteria);
    implementationsList.add(sdImplConfigWithNamespaceNCriteria);
    /* Create the final configuration */
    ServiceDiscoveryConfigurations sdConfig = new ServiceDiscoveryConfigurations();
    sdConfig.setEnabled(true);
    sdConfig.setImplementationsList(implementationsList);
    PowerMockito.mockStatic(ServiceDiscoveryConfigBuilder.class);
    PowerMockito.when(ServiceDiscoveryConfigBuilder.getServiceDiscoveryConfiguration()).thenReturn(sdConfig);
    /* Check whether all four types of #listServices methods have been called */
    APIPublisherImpl apiPublisher = getApiPublisherImpl();
    List<Endpoint> endpoints = apiPublisher.discoverServiceEndpoints();
    Assert.assertEquals(endpoints.size(), 4);
}

Example 2 with ServiceDiscoveryImplConfig

use of org.wso2.carbon.apimgt.core.configuration.models.ServiceDiscoveryImplConfig in project carbon-apimgt by wso2.

the class APIPublisherImpl method discoverServiceEndpoints.

/**
 * Discover and return a list of service endpoints, of all systems that were included in the config
 *
 * @return {@code List<Endpoint>}   list of all service endpoints
 * @throws APIManagementException If an error occurred while discovering services
 */
@Override
public List<Endpoint> discoverServiceEndpoints() throws APIManagementException {
    List<Endpoint> discoveredEndpointList = new ArrayList();
    try {
        ServiceDiscoveryConfigurations serviceDiscoveryConfig = ServiceDiscoveryConfigBuilder.getServiceDiscoveryConfiguration();
        // If service discovery not enabled - do not proceed
        if (!serviceDiscoveryConfig.isServiceDiscoveryEnabled()) {
            log.error("Service Discovery not enabled");
            return discoveredEndpointList;
        }
        List<ServiceDiscoveryImplConfig> implConfigList = serviceDiscoveryConfig.getImplementationsList();
        for (ServiceDiscoveryImplConfig implConfig : implConfigList) {
            // Every implConfig has two elements. The implClass and the implParameters.
            /* Get the implClass instance */
            String implClassName = implConfig.getImplClass();
            Class implClass = Class.forName(implClassName);
            ServiceDiscoverer serviceDiscoverer = (ServiceDiscoverer) implClass.newInstance();
            /* Pass the implParameters to the above instance */
            serviceDiscoverer.init(implConfig.getImplParameters());
            /*
                 * The .init() method above sets the filtering parameters (if provided)
                 * to the ServiceDiscoverer impl class instance.
                 *
                 * Let's check whether those filtering parameters : "namespace" and/or "criteria" are set,
                 * and call ServiceDiscoverer Impl class's #listServices method accordingly
                 */
            String namespaceFilter = serviceDiscoverer.getNamespaceFilter();
            Map<String, String> criteriaFilter = serviceDiscoverer.getCriteriaFilter();
            List<Endpoint> subDiscoveredEndpointList;
            if (namespaceFilter == null && criteriaFilter == null) {
                // both not set
                subDiscoveredEndpointList = serviceDiscoverer.listServices();
            } else if (namespaceFilter != null && criteriaFilter != null) {
                // both set
                subDiscoveredEndpointList = serviceDiscoverer.listServices(namespaceFilter, criteriaFilter);
            } else if (namespaceFilter != null) {
                // only "namespace" is set
                subDiscoveredEndpointList = serviceDiscoverer.listServices(namespaceFilter);
            } else {
                // remaining -> only "criteria" is set
                subDiscoveredEndpointList = serviceDiscoverer.listServices(criteriaFilter);
            }
            if (subDiscoveredEndpointList != null) {
                discoveredEndpointList.addAll(subDiscoveredEndpointList);
            }
        }
    } catch (ServiceDiscoveryException e) {
        String msg = "Error while Discovering Service Endpoints";
        throw new APIManagementException(msg, e, e.getErrorHandler());
    } catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
        String msg = "Error while Loading Service Discovery Impl Class";
        throw new APIManagementException(msg, e, ExceptionCodes.ERROR_LOADING_SERVICE_DISCOVERY_IMPL_CLASS);
    }
    return discoveredEndpointList;
}