Examples with NacosException com.alibaba.nacos.api.exception.NacosException used on opensource projects

Example 6 with NacosException

use of com.alibaba.nacos.api.exception.NacosException in project dubbo by alibaba.

the class NacosRegistryTest method testUnSubscribe.

@Test
public void testUnSubscribe() {
    NamingService namingService = mock(NacosNamingService.class);
    try {
        String serviceName = "providers:org.apache.dubbo.registry.nacos.NacosService:1.0.0:default";
        String category = this.serviceUrl.getParameter(CATEGORY_KEY, DEFAULT_CATEGORY);
        URL newUrl = this.serviceUrl.addParameter(CATEGORY_KEY, category);
        newUrl = newUrl.addParameter(PROTOCOL_KEY, this.serviceUrl.getProtocol());
        newUrl = newUrl.addParameter(PATH_KEY, this.serviceUrl.getPath());
        newUrl = newUrl.addParameters(NacosNamingServiceUtils.getNacosPreservedParam(this.serviceUrl));
        String ip = newUrl.getHost();
        int port = newUrl.getPort();
        Instance instance = new Instance();
        instance.setIp(ip);
        instance.setPort(port);
        instance.setMetadata(new HashMap<>(newUrl.getParameters()));
        List<Instance> instances = new ArrayList<>();
        instances.add(instance);
        when(namingService.getAllInstances(serviceName, this.registryUrl.getParameter(GROUP_KEY, Constants.DEFAULT_GROUP))).thenReturn(instances);
    } catch (NacosException e) {
    // ignore
    }
    NacosNamingServiceWrapper nacosNamingServiceWrapper = new NacosNamingServiceWrapper(namingService);
    nacosRegistry = new NacosRegistry(this.registryUrl, nacosNamingServiceWrapper);
    NotifyListener listener = mock(NotifyListener.class);
    nacosRegistry.subscribe(serviceUrl, listener);
    Map<URL, Set<NotifyListener>> subscribed = nacosRegistry.getSubscribed();
    assertThat(subscribed.size(), is(1));
    assertThat(subscribed.get(serviceUrl).size(), is(1));
    nacosRegistry.unsubscribe(serviceUrl, listener);
    subscribed = nacosRegistry.getSubscribed();
    assertThat(subscribed.size(), is(1));
    assertThat(subscribed.get(serviceUrl).size(), is(0));
}

Example 7 with NacosException

use of com.alibaba.nacos.api.exception.NacosException in project dubbo by alibaba.

the class NacosNamingServiceUtils method createNamingService.

/**
 * Create an instance of {@link NamingService} from specified {@link URL connection url}
 *
 * @param connectionURL {@link URL connection url}
 * @return {@link NamingService}
 * @since 2.7.5
 */
public static NacosNamingServiceWrapper createNamingService(URL connectionURL) {
    Properties nacosProperties = buildNacosProperties(connectionURL);
    NamingService namingService;
    try {
        namingService = NacosFactory.createNamingService(nacosProperties);
    } catch (NacosException e) {
        if (logger.isErrorEnabled()) {
            logger.error(e.getErrMsg(), e);
        }
        throw new IllegalStateException(e);
    }
    return new NacosNamingServiceWrapper(namingService);
}

Example 8 with NacosException

use of com.alibaba.nacos.api.exception.NacosException in project dubbo by alibaba.

the class NacosServiceDiscovery method addServiceInstancesChangedListener.

@Override
public void addServiceInstancesChangedListener(ServiceInstancesChangedListener listener) throws NullPointerException, IllegalArgumentException {
    execute(namingService, service -> {
        listener.getServiceNames().forEach(serviceName -> {
            try {
                service.subscribe(serviceName, e -> {
                    // Register Nacos EventListener
                    if (e instanceof NamingEvent) {
                        NamingEvent event = (NamingEvent) e;
                        handleEvent(event, listener);
                    }
                });
            } catch (NacosException e) {
                e.printStackTrace();
            }
        });
    });
}

Example 9 with NacosException

use of com.alibaba.nacos.api.exception.NacosException in project dubbo by alibaba.

the class NacosRegistry method subscribeEventListener.

private void subscribeEventListener(String serviceName, final URL url, final NotifyListener listener) throws NacosException {
    ConcurrentMap<NotifyListener, EventListener> listeners = nacosListeners.computeIfAbsent(url, k -> new ConcurrentHashMap<>());
    EventListener nacosListener = listeners.computeIfAbsent(listener, k -> {
        EventListener eventListener = event -> {
            if (event instanceof NamingEvent) {
                NamingEvent e = (NamingEvent) event;
                List<Instance> instances = e.getInstances();
                if (isServiceNamesWithCompatibleMode(url)) {
                    // Get all instances with corresponding serviceNames to avoid instance overwrite and but with empty instance mentioned
                    // in https://github.com/apache/dubbo/issues/5885 and https://github.com/apache/dubbo/issues/5899
                    NacosInstanceManageUtil.initOrRefreshServiceInstanceList(serviceName, instances);
                    instances = NacosInstanceManageUtil.getAllCorrespondingServiceInstanceList(serviceName);
                }
                notifySubscriber(url, listener, instances);
            }
        };
        return eventListener;
    });
    namingService.subscribe(serviceName, getUrl().getParameter(GROUP_KEY, Constants.DEFAULT_GROUP), nacosListener);
}

Example 10 with NacosException

use of com.alibaba.nacos.api.exception.NacosException in project dubbo by alibaba.

the class NacosDynamicConfigurationTest method setUp.

@BeforeAll
public static void setUp() {
    String urlForDubbo = "nacos://" + "127.0.0.1:8848" + "/org.apache.dubbo.nacos.testService";
    // timeout in 15 seconds.
    URL url = URL.valueOf(urlForDubbo).addParameter(SESSION_TIMEOUT_KEY, 15000);
    config = new NacosDynamicConfiguration(url);
    try {
        nacosClient = NacosFactory.createConfigService("127.0.0.1:8848");
    } catch (NacosException e) {
        e.printStackTrace();
    }
}