| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.dubbo.metadata; |
| |
| import org.apache.dubbo.common.URL; |
| import org.apache.dubbo.common.config.configcenter.DynamicConfiguration; |
| import org.apache.dubbo.common.logger.Logger; |
| import org.apache.dubbo.common.logger.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import static java.lang.String.valueOf; |
| import static java.util.Arrays.asList; |
| import static org.apache.dubbo.common.constants.CommonConstants.GROUP_KEY; |
| import static org.apache.dubbo.common.constants.CommonConstants.VERSION_KEY; |
| import static org.apache.dubbo.rpc.model.ApplicationModel.getName; |
| |
| /** |
| * The {@link ServiceNameMapping} implementation based on {@link DynamicConfiguration} |
| */ |
| public class DynamicConfigurationServiceNameMapping implements ServiceNameMapping { |
| |
| public static String DEFAULT_MAPPING_GROUP = "mapping"; |
| |
| private static final List<String> IGNORED_SERVICE_INTERFACES = asList(MetadataService.class.getName()); |
| |
| private final Logger logger = LoggerFactory.getLogger(getClass()); |
| |
| @Override |
| public void map(URL url) { |
| String serviceInterface = url.getServiceInterface(); |
| String group = url.getParameter(GROUP_KEY); |
| String version = url.getParameter(VERSION_KEY); |
| String protocol = url.getProtocol(); |
| |
| if (IGNORED_SERVICE_INTERFACES.contains(serviceInterface)) { |
| return; |
| } |
| |
| DynamicConfiguration dynamicConfiguration = DynamicConfiguration.getDynamicConfiguration(); |
| |
| // the Dubbo Service Key as group |
| // the service(application) name as key |
| // It does matter whatever the content is, we just need a record |
| String key = getName(); |
| String content = valueOf(System.currentTimeMillis()); |
| |
| execute(() -> { |
| dynamicConfiguration.publishConfig(key, ServiceNameMapping.buildGroup(serviceInterface, group, version, protocol), content); |
| if (logger.isInfoEnabled()) { |
| logger.info(String.format("Dubbo service[%s] mapped to interface name[%s].", |
| group, serviceInterface, group)); |
| } |
| }); |
| } |
| |
| @Override |
| public Set<String> getAndListen(URL url, MappingListener mappingListener) { |
| String serviceInterface = url.getServiceInterface(); |
| String group = url.getParameter(GROUP_KEY); |
| String version = url.getParameter(VERSION_KEY); |
| String protocol = url.getProtocol(); |
| DynamicConfiguration dynamicConfiguration = DynamicConfiguration.getDynamicConfiguration(); |
| |
| Set<String> serviceNames = new LinkedHashSet<>(); |
| execute(() -> { |
| Set<String> keys = dynamicConfiguration |
| .getConfigKeys(ServiceNameMapping.buildGroup(serviceInterface, group, version, protocol)); |
| serviceNames.addAll(keys); |
| }); |
| return Collections.unmodifiableSet(serviceNames); |
| } |
| |
| private void execute(Runnable runnable) { |
| try { |
| runnable.run(); |
| } catch (Throwable e) { |
| if (logger.isWarnEnabled()) { |
| logger.warn(e.getMessage(), e); |
| } |
| } |
| } |
| } |