| /* |
| * 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.rpc.protocol.injvm; |
| |
| import org.apache.dubbo.common.URL; |
| import org.apache.dubbo.common.utils.CollectionUtils; |
| import org.apache.dubbo.common.utils.UrlUtils; |
| import org.apache.dubbo.rpc.Exporter; |
| import org.apache.dubbo.rpc.Invoker; |
| import org.apache.dubbo.rpc.Protocol; |
| import org.apache.dubbo.rpc.RpcException; |
| import org.apache.dubbo.rpc.model.ScopeModel; |
| import org.apache.dubbo.rpc.protocol.AbstractProtocol; |
| |
| import java.util.Map; |
| |
| import static org.apache.dubbo.common.constants.CommonConstants.BROADCAST_CLUSTER; |
| import static org.apache.dubbo.common.constants.CommonConstants.CLUSTER_KEY; |
| import static org.apache.dubbo.rpc.Constants.GENERIC_KEY; |
| import static org.apache.dubbo.rpc.Constants.LOCAL_PROTOCOL; |
| import static org.apache.dubbo.rpc.Constants.SCOPE_KEY; |
| import static org.apache.dubbo.rpc.Constants.SCOPE_LOCAL; |
| import static org.apache.dubbo.rpc.Constants.SCOPE_REMOTE; |
| |
| /** |
| * InjvmProtocol |
| */ |
| public class InjvmProtocol extends AbstractProtocol { |
| |
| public static final String NAME = LOCAL_PROTOCOL; |
| |
| public static final int DEFAULT_PORT = 0; |
| |
| public static InjvmProtocol getInjvmProtocol(ScopeModel scopeModel) { |
| return (InjvmProtocol) scopeModel.getExtensionLoader(Protocol.class).getExtension(InjvmProtocol.NAME, false); |
| } |
| |
| static Exporter<?> getExporter(Map<String, Exporter<?>> map, URL key) { |
| Exporter<?> result = null; |
| |
| if (!key.getServiceKey().contains("*")) { |
| result = map.get(key.getServiceKey()); |
| } else { |
| if (CollectionUtils.isNotEmptyMap(map)) { |
| for (Exporter<?> exporter : map.values()) { |
| if (UrlUtils.isServiceKeyMatch(key, exporter.getInvoker().getUrl())) { |
| result = exporter; |
| break; |
| } |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public int getDefaultPort() { |
| return DEFAULT_PORT; |
| } |
| |
| @Override |
| public <T> Exporter<T> export(Invoker<T> invoker) throws RpcException { |
| return new InjvmExporter<>(invoker, invoker.getUrl().getServiceKey(), exporterMap); |
| } |
| |
| @Override |
| public <T> Invoker<T> protocolBindingRefer(Class<T> serviceType, URL url) throws RpcException { |
| return new InjvmInvoker<>(serviceType, url, url.getServiceKey(), exporterMap); |
| } |
| |
| public boolean isInjvmRefer(URL url) { |
| String scope = url.getParameter(SCOPE_KEY); |
| // Since injvm protocol is configured explicitly, we don't need to set any extra flag, use normal refer process. |
| if (SCOPE_LOCAL.equals(scope) || (url.getParameter(LOCAL_PROTOCOL, false))) { |
| // if it's declared as local reference |
| // 'scope=local' is equivalent to 'injvm=true', injvm will be deprecated in the future release |
| return true; |
| } else if (SCOPE_REMOTE.equals(scope)) { |
| // it's declared as remote reference |
| return false; |
| } else if (url.getParameter(GENERIC_KEY, false)) { |
| // generic invocation is not local reference |
| return false; |
| } else if (getExporter(exporterMap, url) != null) { |
| // Broadcast cluster means that multiple machines will be called, |
| // which is not converted to injvm protocol at this time. |
| if (BROADCAST_CLUSTER.equalsIgnoreCase(url.getParameter(CLUSTER_KEY))) { |
| return false; |
| } |
| // by default, go through local reference if there's the service exposed locally |
| return true; |
| } else { |
| return false; |
| } |
| } |
| } |