Init codes of service mesh probe receiver.

proto @ 75c74186

-Subproject commit 996e6a42fffff2d8cb689c232ba8334d8ab85077
+Subproject commit 75c74186a1548657013a299f388e6e8b7b4b5251

oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/mesh-receiver-provider/pom.xml

@@ -34,6 +34,11 @@
             <artifactId>mesh-receiver-module</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.skywalking</groupId>
+            <artifactId>server-core</artifactId>
+            <version>${project.version}</version>
+        </dependency>
     </dependencies>
 
 

oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/mesh-receiver-provider/src/main/java/org/apache/skywalking/aop/server/receiver/mesh/provider/MeshGRPCHandler.java

+/*
+ * 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.skywalking.aop.server.receiver.mesh.provider;
+
+import io.grpc.stub.StreamObserver;
+import org.apache.skywalking.apm.network.servicemesh.MeshProbeDownstream;
+import org.apache.skywalking.apm.network.servicemesh.ServiceMeshMetric;
+import org.apache.skywalking.apm.network.servicemesh.ServiceMeshMetricServiceGrpc;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class MeshGRPCHandler extends ServiceMeshMetricServiceGrpc.ServiceMeshMetricServiceImplBase {
+    private static final Logger logger = LoggerFactory.getLogger(MeshGRPCHandler.class);
+
+    @Override
+    public StreamObserver<ServiceMeshMetric> collect(StreamObserver<MeshProbeDownstream> responseObserver) {
+        return new StreamObserver<ServiceMeshMetric>() {
+            @Override public void onNext(ServiceMeshMetric metric) {
+                if (logger.isDebugEnabled()) {
+                    logger.debug("Received mesh metric: {}", metric);
+                }
+
+
+            }
+
+            @Override public void onError(Throwable throwable) {
+                logger.error(throwable.getMessage(), throwable);
+                responseObserver.onCompleted();
+            }
+
+            @Override public void onCompleted() {
+                responseObserver.onNext(MeshProbeDownstream.newBuilder().build());
+                responseObserver.onCompleted();
+            }
+        };
+    }
+}

oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/mesh-receiver-provider/src/main/java/org/apache/skywalking/aop/server/receiver/mesh/provider/MeshReceiverProvider.java

@@ -19,6 +19,8 @@
 package org.apache.skywalking.aop.server.receiver.mesh.provider;
 
 import org.apache.skywalking.aop.server.receiver.mesh.module.MeshReceiverModule;
+import org.apache.skywalking.oap.server.core.CoreModule;
+import org.apache.skywalking.oap.server.core.server.GRPCHandlerRegister;
 import org.apache.skywalking.oap.server.library.module.ModuleConfig;
 import org.apache.skywalking.oap.server.library.module.ModuleDefine;
 import org.apache.skywalking.oap.server.library.module.ModuleProvider;
@@ -39,10 +41,11 @@ public class MeshReceiverProvider extends ModuleProvider {
     }
 
     @Override public void prepare() throws ServiceNotProvidedException, ModuleStartException {
-
     }
 
     @Override public void start() throws ServiceNotProvidedException, ModuleStartException {
+        GRPCHandlerRegister service = getManager().find(CoreModule.NAME).getService(GRPCHandlerRegister.class);
+        service.addHandler(new MeshGRPCHandler());
     }
 
     @Override public void notifyAfterCompleted() throws ServiceNotProvidedException, ModuleStartException {
@@ -50,6 +53,6 @@ public class MeshReceiverProvider extends ModuleProvider {
     }
 
     @Override public String[] requiredModules() {
-        return new String[0];
+        return new String[]{CoreModule.NAME};
     }
 }

oap-server/server-starter/src/main/resources/log4j2.xml

@@ -17,7 +17,7 @@
   ~
   -->
 
-<Configuration status="info">
+<Configuration status="INFO">
     <Appenders>
         <Console name="Console" target="SYSTEM_OUT">
             <PatternLayout charset="UTF-8" pattern="%d - %c -%-4r [%t] %-5p %x - %m%n"/>
@@ -27,10 +27,8 @@
         <logger name="org.eclipse.jetty" level="INFO"/>
         <logger name="org.apache.zookeeper" level="INFO"/>
         <logger name="org.elasticsearch.common.network.IfConfig" level="INFO"/>
-        <logger name="org.apache.skywalking.apm.collector.agent.grpc.provider.handler.JVMMetricsServiceHandler" level="INFO"/>
-        <logger name="org.apache.skywalking.apm.collector.analysis.worker.timer.PersistenceTimer" level="INFO"/>
         <logger name="io.grpc.netty" level="INFO"/>
-        <Root level="info">
+        <Root level="INFO">
             <AppenderRef ref="Console"/>
         </Root>
     </Loggers>