com.alibaba.nacos.naming.remote.rpc.handler.ServiceQueryRequestHandler Maven / Gradle / Ivy
/*
* Copyright 1999-2018 Alibaba Group Holding 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 com.alibaba.nacos.naming.remote.rpc.handler;
import com.alibaba.nacos.api.exception.NacosException;
import com.alibaba.nacos.api.naming.pojo.ServiceInfo;
import com.alibaba.nacos.api.naming.remote.request.ServiceQueryRequest;
import com.alibaba.nacos.api.naming.remote.response.QueryServiceResponse;
import com.alibaba.nacos.api.remote.request.RequestMeta;
import com.alibaba.nacos.auth.annotation.Secured;
import com.alibaba.nacos.core.control.TpsControl;
import com.alibaba.nacos.core.paramcheck.ExtractorManager;
import com.alibaba.nacos.core.paramcheck.impl.ServiceQueryRequestParamExtractor;
import com.alibaba.nacos.core.remote.RequestHandler;
import com.alibaba.nacos.naming.core.v2.index.ServiceStorage;
import com.alibaba.nacos.naming.core.v2.metadata.NamingMetadataManager;
import com.alibaba.nacos.naming.core.v2.metadata.ServiceMetadata;
import com.alibaba.nacos.naming.core.v2.pojo.Service;
import com.alibaba.nacos.naming.utils.NamingRequestUtil;
import com.alibaba.nacos.naming.utils.ServiceUtil;
import com.alibaba.nacos.plugin.auth.constant.ActionTypes;
import org.springframework.stereotype.Component;
/**
* Nacos query instances request handler.
*
* @author xiweng.yy
*/
@Component
public class ServiceQueryRequestHandler extends RequestHandler {
private final ServiceStorage serviceStorage;
private final NamingMetadataManager metadataManager;
public ServiceQueryRequestHandler(ServiceStorage serviceStorage, NamingMetadataManager metadataManager) {
this.serviceStorage = serviceStorage;
this.metadataManager = metadataManager;
}
@Override
@TpsControl(pointName = "RemoteNamingServiceQuery", name = "RemoteNamingServiceQuery")
@Secured(action = ActionTypes.READ)
@ExtractorManager.Extractor(rpcExtractor = ServiceQueryRequestParamExtractor.class)
public QueryServiceResponse handle(ServiceQueryRequest request, RequestMeta meta) throws NacosException {
String namespaceId = request.getNamespace();
String groupName = request.getGroupName();
String serviceName = request.getServiceName();
Service service = Service.newService(namespaceId, groupName, serviceName);
String cluster = null == request.getCluster() ? "" : request.getCluster();
boolean healthyOnly = request.isHealthyOnly();
ServiceInfo result = serviceStorage.getData(service);
ServiceMetadata serviceMetadata = metadataManager.getServiceMetadata(service).orElse(null);
result = ServiceUtil.selectInstancesWithHealthyProtection(result, serviceMetadata, cluster, healthyOnly, true,
NamingRequestUtil.getSourceIpForGrpcRequest(meta));
return QueryServiceResponse.buildSuccessResponse(result);
}
}