[SCB-2892]support Etcd as Discovery (#4564)

Co-authored-by: chenzhida <[email protected]>

demo/demo-etcd/README.md

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+# Notice
+
+This integration tests is designed for Etcd registry and configuration. And extra test cases include:
+
+* Test cases related to SpringMVC annotations that demo-springmvc can not cover.

demo/demo-etcd/consumer/pom.xml

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+<!--
+  ~ 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.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.apache.servicecomb.demo</groupId>
+    <artifactId>demo-etcd</artifactId>
+    <version>3.3.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>etcd-consumer</artifactId>
+  <name>Java Chassis::Demo::Etcd::CONSUMER</name>
+  <packaging>jar</packaging>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.servicecomb</groupId>
+      <artifactId>java-chassis-spring-boot-starter-standalone</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+      <version>3.25.3</version>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.servicecomb</groupId>
+      <artifactId>registry-etcd</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+
+  <profiles>
+    <profile>
+      <id>docker</id>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>io.fabric8</groupId>
+            <artifactId>docker-maven-plugin</artifactId>
+          </plugin>
+          <plugin>
+            <groupId>org.commonjava.maven.plugins</groupId>
+            <artifactId>directory-maven-plugin</artifactId>
+          </plugin>
+          <plugin>
+            <groupId>com.github.odavid.maven.plugins</groupId>
+            <artifactId>mixin-maven-plugin</artifactId>
+            <configuration>
+              <mixins>
+                <mixin>
+                  <groupId>org.apache.servicecomb.demo</groupId>
+                  <artifactId>docker-build-config</artifactId>
+                  <version>${project.version}</version>
+                </mixin>
+              </mixins>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+</project>

demo/demo-etcd/consumer/src/main/java/org/apache/servicecomb/samples/ClientWebsocketController.java

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+/*
+ * 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.servicecomb.samples;
+
+import org.apache.servicecomb.core.CoreConst;
+import org.apache.servicecomb.core.annotation.Transport;
+import org.apache.servicecomb.provider.pojo.RpcReference;
+import org.apache.servicecomb.provider.rest.common.RestSchema;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import io.vertx.core.http.ServerWebSocket;
+import io.vertx.core.http.WebSocket;
+
+@RestSchema(schemaId = "ClientWebsocketController")
+@RequestMapping(path = "/ws")
+public class ClientWebsocketController {
+  interface ProviderService {
+    WebSocket websocket();
+  }
+
+  @RpcReference(schemaId = "WebsocketController", microserviceName = "provider")
+  private ProviderService providerService;
+
+  @PostMapping("/websocket")
+  @Transport(name = CoreConst.WEBSOCKET)
+  public void websocket(ServerWebSocket serverWebsocket) {
+    WebSocket providerWebSocket = providerService.websocket();
+    providerWebSocket.closeHandler(v -> serverWebsocket.close());
+    providerWebSocket.textMessageHandler(m -> {
+      serverWebsocket.writeTextMessage(m);
+    });
+    serverWebsocket.textMessageHandler(m -> {
+      providerWebSocket.writeTextMessage(m);
+    });
+  }
+}

demo/demo-etcd/consumer/src/main/java/org/apache/servicecomb/samples/ConsumerController.java

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+/*
+ * 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.servicecomb.samples;
+
+import org.apache.servicecomb.provider.pojo.RpcReference;
+import org.apache.servicecomb.provider.rest.common.RestSchema;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+@RestSchema(schemaId = "ConsumerController")
+@RequestMapping(path = "/")
+public class ConsumerController {
+  @RpcReference(schemaId = "ProviderController", microserviceName = "provider")
+  private ProviderService providerService;
+
+  // consumer service which delegate the implementation to provider service.
+  @GetMapping("/sayHello")
+  public String sayHello(@RequestParam("name") String name) {
+    return providerService.sayHello(name);
+  }
+
+  @GetMapping("/getConfig")
+  public String getConfig(@RequestParam("key") String key) {
+    return providerService.getConfig(key);
+  }
+}

demo/demo-etcd/consumer/src/main/java/org/apache/servicecomb/samples/ConsumerHeaderParamWithListSchema.java

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+/*
+ * 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.servicecomb.samples;
+
+import java.util.List;
+
+import org.apache.servicecomb.demo.api.IHeaderParamWithListSchemaSpringMvc;
+import org.apache.servicecomb.provider.pojo.RpcReference;
+import org.apache.servicecomb.provider.rest.common.RestSchema;
+
+@RestSchema(schemaId = "ConsumerHeaderParamWithListSchema", schemaInterface = IHeaderParamWithListSchemaSpringMvc.class)
+public class ConsumerHeaderParamWithListSchema implements IHeaderParamWithListSchemaSpringMvc {
+  @RpcReference(microserviceName = "provider", schemaId = "HeaderParamWithListSchema")
+  private IHeaderParamWithListSchemaSpringMvc provider;
+
+  @Override
+  public String headerListDefault(List<String> headerList) {
+    return provider.headerListDefault(headerList);
+  }
+
+  @Override
+  public String headerListCSV(List<String> headerList) {
+    return provider.headerListCSV(headerList);
+  }
+
+  @Override
+  public String headerListMULTI(List<String> headerList) {
+    return provider.headerListMULTI(headerList);
+  }
+
+  @Override
+  public String headerListSSV(List<String> headerList) {
+    return provider.headerListSSV(headerList);
+  }
+
+  @Override
+  public String headerListPIPES(List<String> headerList) {
+    return provider.headerListPIPES(headerList);
+  }
+}

demo/demo-etcd/consumer/src/main/java/org/apache/servicecomb/samples/ConsumerReactiveStreamController.java

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+/*
+ * 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.servicecomb.samples;
+
+
+import org.apache.servicecomb.core.CoreConst;
+import org.apache.servicecomb.core.annotation.Transport;
+import org.apache.servicecomb.provider.pojo.RpcReference;
+import org.apache.servicecomb.provider.rest.common.RestSchema;
+import org.reactivestreams.Publisher;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@RestSchema(schemaId = "ReactiveStreamController")
+@RequestMapping(path = "/")
+public class ConsumerReactiveStreamController {
+  interface ProviderReactiveStreamController {
+    Publisher<String> sseString();
+
+    Publisher<Model> sseModel();
+  }
+
+  @RpcReference(microserviceName = "provider", schemaId = "ReactiveStreamController")
+  ProviderReactiveStreamController controller;
+
+  public static class Model {
+    private String name;
+
+    private int age;
+
+    public Model() {
+
+    }
+
+    public Model(String name, int age) {
+      this.name = name;
+      this.age = age;
+    }
+
+    public int getAge() {
+      return age;
+    }
+
+    public Model setAge(int age) {
+      this.age = age;
+      return this;
+    }
+
+    public String getName() {
+      return name;
+    }
+
+    public Model setName(String name) {
+      this.name = name;
+      return this;
+    }
+  }
+
+  @GetMapping("/sseString")
+  @Transport(name = CoreConst.RESTFUL)
+  public Publisher<String> sseString() {
+    return controller.sseString();
+  }
+
+  @GetMapping("/sseModel")
+  @Transport(name = CoreConst.RESTFUL)
+  public Publisher<Model> sseModel() {
+    return controller.sseModel();
+  }
+}

demo/demo-etcd/consumer/src/main/java/org/apache/servicecomb/samples/EtcdConsumerApplication.java

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+/*
+ * 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.servicecomb.samples;
+
+import org.springframework.boot.WebApplicationType;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+
+@SpringBootApplication
+public class EtcdConsumerApplication {
+  public static void main(String[] args) throws Exception {
+    try {
+      new SpringApplicationBuilder().web(WebApplicationType.NONE).sources(EtcdConsumerApplication.class).run(args);
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+  }
+}

demo/demo-etcd/consumer/src/main/java/org/apache/servicecomb/samples/ProviderService.java

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+/*
+ * 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.servicecomb.samples;
+
+public interface ProviderService {
+  String sayHello(String name);
+
+  String getConfig(String key);
+}