Add handler to parse istio telemetry data.

proto @ 75c74186

-Subproject commit 33b132bffaabacbd003eec41b498d2810f386161
+Subproject commit 75c74186a1548657013a299f388e6e8b7b4b5251

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/java/org/apache/skywalking/oap/server/receiver/istio/telemetry/provider/IstioTelemetryGRPCHandler.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.oap.server.receiver.istio.telemetry.provider;
+
+import com.google.protobuf.Timestamp;
+import io.grpc.stub.StreamObserver;
+import io.istio.HandleMetricServiceGrpc;
+import io.istio.IstioMetricProto;
+import io.istio.api.mixer.adapter.model.v1beta1.ReportProto;
+import io.istio.api.policy.v1beta1.TypeProto;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Map;
+import org.apache.skywalking.apm.network.servicemesh.DetectPoint;
+import org.apache.skywalking.apm.network.servicemesh.Protocol;
+import org.apache.skywalking.apm.network.servicemesh.ServiceMeshMetric;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Handle istio telemetry data.
+ *
+ * @author gaohongtao
+ */
+public class IstioTelemetryGRPCHandler extends HandleMetricServiceGrpc.HandleMetricServiceImplBase {
+
+    private static final Logger logger = LoggerFactory.getLogger(IstioTelemetryGRPCHandler.class);
+
+    @Override public void handleMetric(IstioMetricProto.HandleMetricRequest request,
+        StreamObserver<ReportProto.ReportResult> responseObserver) {
+        for (IstioMetricProto.InstanceMsg i : request.getInstancesList()) {
+            logger.debug("Received msg {}", request);
+            String requestMethod = string(i, "requestMethod");
+            String requestPath = string(i,"requestPath");
+            String requestScheme = string(i,"requestScheme");
+            long responseCode = int64(i, "responseCode");
+            String reporter = string(i, "reporter");
+            String protocol = string(i, "apiProtocol");
+
+            String endpoint;
+            boolean status = true;
+            Protocol netProtocol;
+            if (protocol.equals("http") || protocol.equals("https")) {
+                endpoint = requestScheme + "/" + requestMethod + "/" + requestPath;
+                status = responseCode >= 200 && responseCode < 400;
+                netProtocol = Protocol.HTTP;
+            } else {
+                //grpc
+                endpoint = protocol + "/" + requestPath;
+                netProtocol = Protocol.gRPC;
+            }
+            Instant requestTime = time(i, "requestTime");
+            Instant responseTime = time(i, "responseTime");
+            int latency = Math.toIntExact(Duration.between(requestTime, responseTime).toMillis());
+
+            DetectPoint detectPoint;
+            if (reporter.equals("source")) {
+                detectPoint = DetectPoint.client;
+            } else {
+                detectPoint = DetectPoint.server;
+            }
+            ServiceMeshMetric metric = ServiceMeshMetric.newBuilder().setStartTime(requestTime.toEpochMilli())
+                .setEndTime(responseTime.toEpochMilli()).setSourceServiceName(string(i, "sourceService"))
+                .setSourceServiceInstance(string(i, "sourceUID")).setDestServiceName(string(i, "destinationService"))
+                .setDestServiceInstance(string(i, "destinationUID")).setEndpoint(endpoint).setLatency(latency)
+                .setResponseCode(Math.toIntExact(responseCode)).setStatus(status).setProtocol(netProtocol).setDetectPoint(detectPoint).build();
+            logger.debug("Transformed metric {}", metric);
+        }
+        responseObserver.onNext(ReportProto.ReportResult.newBuilder().build());
+        responseObserver.onCompleted();
+    }
+
+    private String string(final IstioMetricProto.InstanceMsg instanceMsg, final String key) {
+        Map<String, TypeProto.Value> map = instanceMsg.getDimensionsMap();
+        assertDimension(map, key);
+        return map.get(key).getStringValue();
+    }
+
+    private long int64(final IstioMetricProto.InstanceMsg instanceMsg, final String key) {
+        Map<String, TypeProto.Value> map = instanceMsg.getDimensionsMap();
+        assertDimension(map, key);
+        return map.get(key).getInt64Value();
+    }
+
+    private Instant time(final IstioMetricProto.InstanceMsg instanceMsg, final String key) {
+        Map<String, TypeProto.Value> map = instanceMsg.getDimensionsMap();
+        assertDimension(map, key);
+        Timestamp timestamp = map.get(key).getTimestampValue().getValue();
+        return Instant.ofEpochSecond(timestamp.getSeconds(), timestamp.getNanos());
+    }
+
+    private void assertDimension(final Map<String, TypeProto.Value> map, final String key) {
+        if (!map.containsKey(key)) {
+            throw new IllegalArgumentException(String.format("Lack dimension %s", key));
+        }
+    }
+}

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/java/org/apache/skywalking/oap/server/receiver/istio/telemetry/provider/IstioTelemetryReceiverProvider.java

@@ -19,6 +19,7 @@
 package org.apache.skywalking.oap.server.receiver.istio.telemetry.provider;
 
 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;
@@ -43,6 +44,8 @@ public class IstioTelemetryReceiverProvider extends ModuleProvider {
     }
 
     @Override public void start() throws ServiceNotProvidedException, ModuleStartException {
+        GRPCHandlerRegister service = getManager().find(CoreModule.NAME).getService(GRPCHandlerRegister.class);
+        service.addHandler(new IstioTelemetryGRPCHandler());
     }
 
     @Override public void notifyAfterCompleted() throws ServiceNotProvidedException, ModuleStartException {

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/proto/istio-metric.proto

@@ -54,6 +54,9 @@ import "mixer/adapter/model/v1beta1/report.proto";
 import "policy/v1beta1/value_type.proto";
 import "policy/v1beta1/type.proto";
 
+option java_package = "io.istio";
+option java_outer_classname = "IstioMetricProto";
+
 option (istio.mixer.adapter.model.v1beta1.template_variety) = TEMPLATE_VARIETY_REPORT;
 option (istio.mixer.adapter.model.v1beta1.template_name) = "metric";
 

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/proto/mixer/adapter/model/v1beta1/extensions.proto

@@ -17,6 +17,8 @@ syntax = "proto3";
 package istio.mixer.adapter.model.v1beta1;
 
 option go_package="istio.io/api/mixer/adapter/model/v1beta1";
+option java_package = "io.istio.api.mixer.adapter.model.v1beta1";
+option java_outer_classname = "ExtensionsProto";
 
 import "google/protobuf/descriptor.proto";
 

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/proto/mixer/adapter/model/v1beta1/report.proto

@@ -17,6 +17,8 @@ syntax = "proto3";
 package istio.mixer.adapter.model.v1beta1;
 
 option go_package="istio.io/api/mixer/adapter/model/v1beta1";
+option java_package = "io.istio.api.mixer.adapter.model.v1beta1";
+option java_outer_classname = "ReportProto";
 
 import "gogoproto/gogo.proto";
 

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/proto/policy/v1beta1/type.proto

@@ -22,6 +22,8 @@ syntax = "proto3";
 package istio.policy.v1beta1;
 
 option go_package="istio.io/api/policy/v1beta1";
+option java_package = "io.istio.api.policy.v1beta1";
+option java_outer_classname = "TypeProto";
 
 import "google/protobuf/duration.proto";
 import "google/protobuf/timestamp.proto";

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/main/proto/policy/v1beta1/value_type.proto

@@ -17,6 +17,8 @@ syntax = "proto3";
 package istio.policy.v1beta1;
 
 option go_package="istio.io/api/policy/v1beta1";
+option java_package = "io.istio.api.policy.v1beta1";
+option java_outer_classname = "ValueTypeProto";
 
 // ValueType describes the types that values in the Istio system can take. These
 // are used to describe the type of Attributes at run time, describe the type of

oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/istio-telemetry-receiver-provider/src/test/java/org/apache/skywalking/oap/server/receiver/istio/telemetry/provider/IstioTelemetryGRPCHandlerTest.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.oap.server.receiver.istio.telemetry.provider;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class IstioTelemetryGRPCHandlerTest {
+
+    @Test
+    public void handleMetric() {
+    }
+}
\ No newline at end of file

oap-server/server-starter/src/main/resources/application.yml

@@ -51,6 +51,8 @@ storage:
     monthMetricDataTTL: 18 # Unit is month
 service-mesh:
   default:
+istio-telemetry:
+  default:
 query:
   graphql:
     path: /graphql

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

@@ -28,6 +28,7 @@
         <logger name="org.apache.zookeeper" level="INFO"/>
         <logger name="org.elasticsearch.common.network.IfConfig" level="INFO"/>
         <logger name="io.grpc.netty" level="INFO"/>
+        <logger name="org.apache.skywalking.oap.server.receiver.istio.telemetry" level="DEBUG"/>
         <Root level="INFO">
             <AppenderRef ref="Console"/>
         </Root>