io.servicecomb.springboot.starter.discovery.CseDiscoveryClient Maven / Gradle / Ivy

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/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.servicecomb.springboot.starter.discovery;

import java.util.ArrayList;
import java.util.List;

import javax.inject.Inject;

import org.springframework.cloud.client.DefaultServiceInstance;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;

import io.servicecomb.serviceregistry.api.registry.Microservice;
import io.servicecomb.serviceregistry.api.registry.MicroserviceInstance;
import io.servicecomb.serviceregistry.client.RegistryClientFactory;
import io.servicecomb.serviceregistry.client.ServiceRegistryClient;
import io.servicecomb.core.provider.consumer.ConsumerProviderManager;
import io.servicecomb.core.provider.consumer.ReferenceConfig;
import io.servicecomb.foundation.common.net.URIEndpointObject;

import com.netflix.config.DynamicPropertyFactory;

public class CseDiscoveryClient implements DiscoveryClient {

    @Inject
    private ConsumerProviderManager consumerProviderManager;

    @Override
    public String description() {
        return "Spring Cloud CSE Discovery Client";
    }

    @Override
    public List getInstances(final String serviceId) {
        List instances = new ArrayList();
        ServiceRegistryClient client = RegistryClientFactory.getRegistryClient();
        String appId = DynamicPropertyFactory.getInstance().getStringProperty("APPLICATION_ID", "default").get();
        ReferenceConfig referenceConfig = consumerProviderManager.getReferenceConfig(serviceId);
        String versionRule = referenceConfig.getMicroserviceVersionRule();
        String cseServiceID = client.getMicroserviceId(appId, serviceId, versionRule);
        List cseServices = client.getMicroserviceInstance(cseServiceID, cseServiceID);
        if (null != cseServices && !cseServices.isEmpty()) {
            for (MicroserviceInstance instance : cseServices) {
                List eps = instance.getEndpoints();
                for (String ep : eps) {
                    URIEndpointObject uri = new URIEndpointObject(ep);
                    instances.add(new DefaultServiceInstance(instance.getServiceId(), uri.getHostOrIp(),
                            uri.getPort(), false));
                }
            }
        }
        return instances;
    }

    @Override
    public ServiceInstance getLocalServiceInstance() {
        return null;
    }

    @Override
    public List getServices() {
        ServiceRegistryClient client = RegistryClientFactory.getRegistryClient();
        List services = client.getAllMicroservices();
        List serviceIDList = new ArrayList<>();
        if (null != services && !services.isEmpty())
            for (Microservice service : services) {
                serviceIDList.add(service.getServiceName());
            }
        return serviceIDList;
    }
}