Examples with PolarisServer com.tencent.cloud.polaris.pojo.PolarisServer used on opensource projects

Example 1 with PolarisServer

use of com.tencent.cloud.polaris.pojo.PolarisServer in project spring-cloud-tencent by Tencent.

the class PolarisRoutingLoadBalancer method getReachableServers.

@Override
public List<Server> getReachableServers() {
    List<Server> allServers = super.getAllServers();
    if (CollectionUtils.isEmpty(allServers)) {
        return allServers;
    }
    ServiceInstances serviceInstances = null;
    if (allServers.get(0) instanceof PolarisServer) {
        serviceInstances = ((PolarisServer) allServers.get(0)).getServiceInstances();
    } else {
        String serviceName;
        // notice the difference between different service registries
        if (StringUtils.isNotBlank(allServers.get(0).getMetaInfo().getServiceIdForDiscovery())) {
            serviceName = allServers.get(0).getMetaInfo().getServiceIdForDiscovery();
        } else {
            serviceName = allServers.get(0).getMetaInfo().getAppName();
        }
        if (StringUtils.isBlank(serviceName)) {
            throw new IllegalStateException("PolarisRoutingLoadBalancer only Server with AppName or ServiceIdForDiscovery attribute");
        }
        ServiceKey serviceKey = new ServiceKey(MetadataContextHolder.LOCAL_NAMESPACE, serviceName);
        List<Instance> instances = new ArrayList<>(8);
        for (Server server : allServers) {
            DefaultInstance instance = new DefaultInstance();
            instance.setNamespace(MetadataContextHolder.LOCAL_NAMESPACE);
            instance.setService(serviceName);
            instance.setHealthy(server.isAlive());
            instance.setProtocol(server.getScheme());
            instance.setId(server.getId());
            instance.setHost(server.getHost());
            instance.setPort(server.getPort());
            instance.setZone(server.getZone());
            instance.setWeight(100);
            instances.add(instance);
        }
        serviceInstances = new DefaultServiceInstances(serviceKey, instances);
    }
    ProcessRoutersRequest processRoutersRequest = new ProcessRoutersRequest();
    processRoutersRequest.setDstInstances(serviceInstances);
    String srcNamespace = MetadataContextHolder.get().getSystemMetadata(SystemMetadataKey.LOCAL_NAMESPACE);
    String srcService = MetadataContextHolder.get().getSystemMetadata(SystemMetadataKey.LOCAL_SERVICE);
    Map<String, String> transitiveCustomMetadata = MetadataContextHolder.get().getAllTransitiveCustomMetadata();
    String method = MetadataContextHolder.get().getSystemMetadata(SystemMetadataKey.PEER_PATH);
    processRoutersRequest.setMethod(method);
    if (StringUtils.isNotBlank(srcNamespace) && StringUtils.isNotBlank(srcService)) {
        ServiceInfo serviceInfo = new ServiceInfo();
        serviceInfo.setNamespace(srcNamespace);
        serviceInfo.setService(srcService);
        serviceInfo.setMetadata(transitiveCustomMetadata);
        processRoutersRequest.setSourceService(serviceInfo);
    }
    ProcessRoutersResponse processRoutersResponse = routerAPI.processRouters(processRoutersRequest);
    ServiceInstances filteredServiceInstances = processRoutersResponse.getServiceInstances();
    List<Server> filteredInstances = new ArrayList<>();
    for (Instance instance : filteredServiceInstances.getInstances()) {
        filteredInstances.add(new PolarisServer(serviceInstances, instance));
    }
    return filteredInstances;
}

Example 2 with PolarisServer

use of com.tencent.cloud.polaris.pojo.PolarisServer in project spring-cloud-tencent by Tencent.

the class PolarisWeightedRandomRule method choose.

@Override
public Server choose(Object key) {
    List<Server> allServers = getLoadBalancer().getReachableServers();
    if (CollectionUtils.isEmpty(allServers)) {
        return null;
    }
    Server server = allServers.get(0);
    if (!(server instanceof PolarisServer)) {
        throw new IllegalStateException("PolarisDiscoveryRule only support PolarisServer instances");
    }
    PolarisServer polarisServer = (PolarisServer) server;
    ProcessLoadBalanceRequest request = new ProcessLoadBalanceRequest();
    request.setDstInstances(polarisServer.getServiceInstances());
    request.setLbPolicy(POLICY);
    ProcessLoadBalanceResponse processLoadBalanceResponse = polarisRouter.processLoadBalance(request);
    Instance targetInstance = processLoadBalanceResponse.getTargetInstance();
    return new PolarisServer(polarisServer.getServiceInstances(), targetInstance);
}