Java tutorial
/* * 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.core.definition.loader; import java.util.List; import javax.inject.Inject; import org.apache.commons.io.FilenameUtils; import org.apache.commons.io.IOUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.core.io.Resource; import org.springframework.stereotype.Component; import org.springframework.util.StringUtils; import io.servicecomb.core.Handler; import io.servicecomb.core.definition.MicroserviceMeta; import io.servicecomb.core.definition.MicroserviceMetaManager; import io.servicecomb.core.definition.SchemaMeta; import io.servicecomb.core.definition.SchemaUtils; import io.servicecomb.core.handler.ConsumerHandlerManager; import io.servicecomb.core.handler.ProducerHandlerManager; import io.servicecomb.serviceregistry.RegistryUtils; import io.servicecomb.serviceregistry.api.Const; import io.servicecomb.serviceregistry.api.registry.BasePath; import io.servicecomb.serviceregistry.api.registry.Microservice; import io.swagger.models.Swagger; @Component public class SchemaLoader { private static final Logger LOGGER = LoggerFactory.getLogger(SchemaLoader.class); @Inject protected MicroserviceMetaManager microserviceMetaManager; public void setMicroserviceMetaManager(MicroserviceMetaManager microserviceMetaManager) { this.microserviceMetaManager = microserviceMetaManager; } /** * resource??schemaId.yaml */ public SchemaMeta registerSchema(String microserviceName, Resource resource) { try { String schemaId = FilenameUtils.getBaseName(resource.getFilename()); String swaggerContent = IOUtils.toString(resource.getURL()); SchemaMeta schemaMeta = registerSchema(microserviceName, schemaId, swaggerContent); return schemaMeta; } catch (Throwable e) { throw new Error(e); } } public SchemaMeta registerSchema(String microserviceName, String schemaId, String swaggerContent) { Swagger swagger = SchemaUtils.parseSwagger(swaggerContent); if (swagger == null) { throw new Error(String.format("Parse the swagger for %s:%s failed", microserviceName, schemaId)); } return registerSchema(microserviceName, schemaId, swagger); } public SchemaMeta registerSchema(String microserviceName, String schemaId, Swagger swagger) { MicroserviceMeta microserviceMeta = microserviceMetaManager.getOrCreateMicroserviceMeta(microserviceName); return registerSchema(microserviceMeta, schemaId, swagger); } public SchemaMeta registerSchema(MicroserviceMeta microserviceMeta, String schemaId, Swagger swagger) { String microserviceName = microserviceMeta.getName(); LOGGER.info("register schema {}/{}/{}", microserviceMeta.getAppId(), microserviceName, schemaId); SchemaMeta schemaMeta = new SchemaMeta(swagger, microserviceMeta, schemaId); List<Handler> producerHandlerChain = ProducerHandlerManager.INSTANCE.getOrCreate(microserviceName); schemaMeta.setProviderHandlerChain(producerHandlerChain); List<Handler> consumerHandlerChain = ConsumerHandlerManager.INSTANCE.getOrCreate(microserviceName); schemaMeta.setConsumerHandlerChain(consumerHandlerChain); microserviceMeta.regSchemaMeta(schemaMeta); putSelfBasePathIfAbsent(microserviceName, swagger.getBasePath()); return schemaMeta; } public void putSelfBasePathIfAbsent(String microserviceName, String basePath) { if (basePath == null || basePath.length() == 0) { return; } Microservice microservice = RegistryUtils.getMicroservice(); if (!microservice.getServiceName().equals(microserviceName)) { return; } String urlPrefix = System.getProperty(Const.URL_PREFIX); if (!StringUtils.isEmpty(urlPrefix) && !basePath.startsWith(urlPrefix)) { basePath = urlPrefix + basePath; } List<BasePath> paths = microservice.getPaths(); for (BasePath path : paths) { if (path.getPath().equals(basePath)) { return; } } BasePath basePathObj = new BasePath(); basePathObj.setPath(basePath); paths.add(basePathObj); } }