Examples of com.netflix.discovery.shared.Applications$Pair

com.netflix.discovery.shared.Applications
The class that wraps all the registry information returned by eureka server.
Note that the registry information is fetched from eureka server as specified in {@link EurekaClientConfig#getRegistryFetchIntervalSeconds()}. Once the information is fetched it is shuffled and also filtered for instances with {@link InstanceStatus#UP} status as specified by the configuration{@link EurekaClientConfig#shouldFilterOnlyUpInstances()}.
@author Karthik Ranganathan

    public Response getEurekaDetails() {
        List<EurekaInstanceInfo> instanceInfoList = new ArrayList<EurekaInstanceInfo>();


        DiscoveryClient discoveryClient = DiscoveryManager.getInstance().getDiscoveryClient();
        if (null != discoveryClient) {
            Applications apps = discoveryClient.getApplications();
            for (Application app : apps.getRegisteredApplications()) {
                for (InstanceInfo inst : app.getInstances()) {
                    instanceInfoList.add(new EurekaInstanceInfo(inst.getAppName(), inst.getId(), inst.getStatus().name(), inst.getIPAddr(), inst.getHostName()));
                }
            }
        }

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        Assert.assertTrue("Remote region not found in set of known regions." + allKnownRegions, allKnownRegions.contains(REMOTE_REGION));
    }


    @Test
    public void testAllAppsForRegions() throws Exception {
        Applications appsForRemoteRegion = client.getApplicationsForARegion(REMOTE_REGION);
        Assert.assertTrue("No apps for remote region found.", null != appsForRemoteRegion && !appsForRemoteRegion.getRegisteredApplications().isEmpty());
        Applications appsForLocalRegion = client.getApplicationsForARegion("us-east-1");
        Assert.assertTrue("No apps for local region found.", null != appsForLocalRegion && !appsForLocalRegion.getRegisteredApplications().isEmpty());
    }

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         * com.thoughtworks.xstream.converters.MarshallingContext)
         */
        @Override
        public void marshal(Object source, HierarchicalStreamWriter writer,
                MarshallingContext context) {
            Applications apps = (Applications) source;
            writer.startNode(VERSIONS_DELTA);
            writer.setValue(apps.getVersion().toString());
            writer.endNode();
            writer.startNode(APPS_HASHCODE);
            writer.setValue(apps.getAppsHashCode());
            writer.endNode();
            for (Application app : apps.getRegisteredApplications()) {
                writer.startNode(NODE_APP);
                context.convertAnother(app);
                writer.endNode();
            }
        }

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         * com.thoughtworks.xstream.converters.UnmarshallingContext)
         */
        @Override
        public Object unmarshal(HierarchicalStreamReader reader,
                UnmarshallingContext context) {
            Applications apps = new Applications();
            while (reader.hasMoreChildren()) {
                reader.moveDown();


                String nodeName = reader.getNodeName();


                if (NODE_APP.equals(nodeName)) {
                    apps.addApplication((Application) context.convertAnother(
                            apps, Application.class));
                } else if (VERSIONS_DELTA.equals(nodeName)) {
                    apps.setVersion(Long.valueOf(reader.getValue()));
                } else if (APPS_HASHCODE.equals(nodeName)) {
                    apps.setAppsHashCode(reader.getValue());
                }
                reader.moveUp();
            }
            return apps;
        }

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        Assert.assertTrue("Registry access disallowed when remote region is UP.", registry.shouldAllowAccess(true));
    }


    @Test
    public void testGetAppsFromAllRemoteRegions() throws Exception {
        Applications apps = registry.getApplicationsFromAllRemoteRegions();
        List<Application> registeredApplications = apps.getRegisteredApplications();
        Assert.assertEquals("Apps size from remote regions do not match", 1, registeredApplications.size());
        Application app = registeredApplications.iterator().next();
        Assert.assertEquals("Added app did not return from remote registry", REMOTE_REGION_APP_NAME, app.getName());
        Assert.assertEquals("Returned app did not have the instance", 1, app.getInstances().size());
    }

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    public void testGetAppsDeltaFromAllRemoteRegions() throws Exception {
        testGetAppsFromAllRemoteRegions(); // to add to registry


        registerInstanceLocally(createLocalInstance(LOCAL_REGION_INSTANCE_2_HOSTNAME)); /// local delta
        waitForDeltaToBeRetrieved();
        Applications appDelta = registry.getApplicationDeltasFromMultipleRegions(null);
        List<Application> registeredApplications = appDelta.getRegisteredApplications();
        Assert.assertEquals("Apps size from remote regions do not match", 2, registeredApplications.size());
        Application locaApplication = null;
        Application remApplication = null;
        for (Application registeredApplication : registeredApplications) {
            if (registeredApplication.getName().equalsIgnoreCase(LOCAL_REGION_APP_NAME)) {

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    @Test
    public void testGetAppsFromLocalRegionOnly() throws Exception {
        registerInstanceLocally(createLocalInstance(LOCAL_REGION_INSTANCE_1_HOSTNAME));


        Applications apps = registry.getApplicationsFromLocalRegionOnly();
        List<Application> registeredApplications = apps.getRegisteredApplications();
        Assert.assertEquals("Apps size from local region do not match", 1, registeredApplications.size());
        Application app = registeredApplications.iterator().next();
        Assert.assertEquals("Added app did not return from local registry", LOCAL_REGION_APP_NAME, app.getName());
        Assert.assertEquals("Returned app did not have the instance", 1, app.getInstances().size());
    }

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    @Test
    public void testGetAppsFromBothRegions() throws Exception {
        registerInstanceLocally(createRemoteInstance(LOCAL_REGION_INSTANCE_1_HOSTNAME));
        registerInstanceLocally(createLocalInstance(LOCAL_REGION_INSTANCE_1_HOSTNAME));


        Applications apps = registry.getApplicationsFromAllRemoteRegions();
        List<Application> registeredApplications = apps.getRegisteredApplications();
        Assert.assertEquals("Apps size from both regions do not match", 2, registeredApplications.size());
        Application locaApplication = null;
        Application remApplication = null;
        for (Application registeredApplication : registeredApplications) {
            if (registeredApplication.getName().equalsIgnoreCase(LOCAL_REGION_APP_NAME)) {

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                            .getMethod() + '|');
            boolean handled = false;
            if (null != pathInfo && pathInfo.startsWith("")) {
                pathInfo = pathInfo.substring(EUREKA_API_BASE_PATH.length());
                if (pathInfo.startsWith("apps/delta")) {
                    Applications apps = new Applications();
                    for (Application application : applicationDeltaMap.values()) {
                        apps.addApplication(application);
                    }
                    apps.setAppsHashCode(apps.getReconcileHashCode());
                    sendOkResponseWithContent((Request) request, response, XmlXStream.getInstance().toXML(apps));
                    handled = true;
                    sentDelta = true;
                } else if (pathInfo.startsWith("apps")) {
                    Applications apps = new Applications();
                    for (Application application : applicationMap.values()) {
                        apps.addApplication(application);
                    }
                    apps.setAppsHashCode(apps.getReconcileHashCode());
                    sendOkResponseWithContent((Request) request, response, XmlXStream.getInstance().toXML(apps));
                    handled = true;
                }
            }

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                boolean includeRemote = isRemoteRequest(request);


                if (pathInfo.startsWith("apps/delta")) {
                    getDeltaCount.getAndIncrement();


                    Applications apps = new Applications();
                    apps.setVersion(100L);
                    if (sentDelta.compareAndSet(false, true)) {
                        addDeltaApps(includeRemote, apps);
                    } else {
                        System.out.println("Eureka port: " +  port + ". " + System.currentTimeMillis() +". Not including delta as it has already been sent.");
                    }
                    apps.setAppsHashCode(getDeltaAppsHashCode(includeRemote));
                    sendOkResponseWithContent((Request) request, response, apps);
                    handled = true;
                } else if(pathInfo.equals("apps/")) {
                    getFullRegistryCount.getAndIncrement();


                    Applications apps = new Applications();
                    apps.setVersion(100L);
                    for (Application application : applicationMap.values()) {
                        apps.addApplication(application);
                    }
                    if (includeRemote) {
                        for (Application application : remoteRegionApps.values()) {
                            apps.addApplication(application);
                        }
                    }


                    if (sentDelta.get()) {
                        addDeltaApps(includeRemote, apps);
                    } else {
                        System.out.println("Eureka port: " + port + ". " + System.currentTimeMillis() +". Not including delta apps in /apps response, as delta has not been sent.");
                    }
                    apps.setAppsHashCode(apps.getReconcileHashCode());
                    sendOkResponseWithContent((Request) request, response, apps);
                    sentRegistry.set(true);
                    handled = true;
                } else if (pathInfo.startsWith("vips/")) {
                    getSingleVipCount.getAndIncrement();


                    String vipAddress = pathInfo.substring("vips/".length());
                    Applications apps = new Applications();
                    apps.setVersion(-1l);
                    for (Application application : applicationMap.values()) {
                        Application retApp = new Application(application.getName());
                        for (InstanceInfo instance : application.getInstances()) {
                            if (vipAddress.equals(instance.getVIPAddress())) {
                                retApp.addInstance(instance);
                            }
                        }


                        if (retApp.getInstances().size() > 0) {
                            apps.addApplication(retApp);
                        }
                    }


                    apps.setAppsHashCode(apps.getReconcileHashCode());
                    sendOkResponseWithContent((Request) request, response, apps);
                    handled = true;
                } else if (pathInfo.startsWith("apps")) {  // assume this is the renewal heartbeat
                    heartbeatCount.getAndIncrement();


                    sendOkResponseWithContent((Request) request, response, new Applications());
                } else {
                    System.out.println("Not handling request: " + pathInfo);
                }
            }

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