Add Motan RPC adapter implementation (#1825)

sentinel-adapter/pom.xml

@@ -31,6 +31,7 @@
         <module>sentinel-okhttp-adapter</module>
         <module>sentinel-jax-rs-adapter</module>
         <module>sentinel-quarkus-adapter</module>
+        <module>sentinel-motan-adapter</module>
     </modules>
 
     <dependencyManagement>

sentinel-adapter/sentinel-motan-adapter/pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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">
+    <parent>
+        <artifactId>sentinel-adapter</artifactId>
+        <groupId>com.alibaba.csp</groupId>
+        <version>1.8.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>sentinel-motan-adapter</artifactId>
+    <packaging>jar</packaging>
+
+    <properties>
+        <motan.version>1.1.8</motan.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.weibo</groupId>
+            <artifactId>motan-core</artifactId>
+            <version>${motan.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.weibo</groupId>
+            <artifactId>motan-transport-netty4</artifactId>
+            <version>${motan.version}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven.compiler.version}</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>${java.encoding}</encoding>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

sentinel-adapter/sentinel-motan-adapter/src/main/java/com/alibaba/csp/sentinel/adapter/motan/MotanUtils.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright 1999-2020 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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
+ *
+ *      https://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 com.alibaba.csp.sentinel.adapter.motan;
+
+import com.alibaba.csp.sentinel.adapter.motan.config.MotanAdapterGlobalConfig;
+import com.alibaba.csp.sentinel.util.StringUtil;
+import com.weibo.api.motan.rpc.Caller;
+import com.weibo.api.motan.rpc.Request;
+import com.weibo.api.motan.util.ReflectUtil;
+
+/**
+ * @author zhangxn8
+ */
+public class MotanUtils {
+
+    private MotanUtils() {}
+
+    public static String getMethodResourceName(Caller<?> caller, Request request){
+        return getMethodResourceName(caller, request, false);
+    }
+
+    public static String getMethodResourceName(Caller<?> caller, Request request, Boolean useGroupAndVersion) {
+        StringBuilder buf = new StringBuilder(64);
+        String interfaceResource = useGroupAndVersion ? caller.getUrl().getPath(): caller.getInterface().getName();
+        buf.append(interfaceResource)
+                .append(":")
+                .append(request.getMethodName())
+                .append("(");
+        boolean isFirst = true;
+        try {
+            Class<?>[] classTypes = ReflectUtil.forNames(request.getParamtersDesc());
+            for (Class<?> clazz : classTypes) {
+                if (!isFirst) {
+                    buf.append(",");
+                }
+                buf.append(clazz.getName());
+                isFirst = false;
+            }
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        buf.append(")");
+        return buf.toString();
+    }
+
+    public static String getMethodResourceName(Caller<?> caller, Request request, String prefix) {
+        if (StringUtil.isNotBlank(prefix)) {
+            return new StringBuilder(64)
+                    .append(prefix)
+                    .append(getMethodResourceName(caller, request,MotanAdapterGlobalConfig.getMotanInterfaceGroupAndVersionEnabled()))
+                    .toString();
+        } else {
+            return getMethodResourceName(caller, request,MotanAdapterGlobalConfig.getMotanInterfaceGroupAndVersionEnabled());
+        }
+    }
+
+    public static String getInterfaceName(Caller<?> caller) {
+        return getInterfaceName(caller, false);
+    }
+
+    public static String getInterfaceName(Caller<?> caller, Boolean useGroupAndVersion) {
+        return useGroupAndVersion ? caller.getUrl().getApplication() : caller.getInterface().getName();
+    }
+
+    public static String getInterfaceName(Caller<?> caller, String prefix) {
+        if (StringUtil.isNotBlank(prefix)) {
+            return new StringBuilder(64)
+                    .append(prefix)
+                    .append(getInterfaceName(caller, MotanAdapterGlobalConfig.getMotanInterfaceGroupAndVersionEnabled()))
+                    .toString();
+        } else {
+            return getInterfaceName(caller, MotanAdapterGlobalConfig.getMotanInterfaceGroupAndVersionEnabled());
+        }
+    }
+
+}

sentinel-adapter/sentinel-motan-adapter/src/main/java/com/alibaba/csp/sentinel/adapter/motan/SentinelMotanConsumerFilter.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright 1999-2020 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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
+ *
+ *      https://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 com.alibaba.csp.sentinel.adapter.motan;
+
+import com.alibaba.csp.sentinel.*;
+import com.alibaba.csp.sentinel.adapter.motan.config.MotanAdapterGlobalConfig;
+import com.alibaba.csp.sentinel.log.RecordLog;
+import com.alibaba.csp.sentinel.slots.block.BlockException;
+import com.weibo.api.motan.common.MotanConstants;
+import com.weibo.api.motan.core.extension.Activation;
+import com.weibo.api.motan.core.extension.SpiMeta;
+import com.weibo.api.motan.exception.MotanAbstractException;
+import com.weibo.api.motan.filter.Filter;
+import com.weibo.api.motan.rpc.Caller;
+import com.weibo.api.motan.rpc.Request;
+import com.weibo.api.motan.rpc.Response;
+
+/**
+ * @author zhangxn8
+ */
+@Activation(key = MotanConstants.NODE_TYPE_REFERER)
+@SpiMeta(name = MotanAdapterGlobalConfig.SENTINEL_MOTAN_CONSUMER)
+public class SentinelMotanConsumerFilter implements Filter {
+
+    public SentinelMotanConsumerFilter(){
+        RecordLog.info("Sentinel motan consumer filter initialized");
+    }
+
+    @Override
+    public Response filter(Caller<?> caller, Request request) {
+        Entry interfaceEntry = null;
+        Entry methodEntry = null;
+        String prefix = MotanAdapterGlobalConfig.getMotanConsumerPrefix();
+        String interfaceResourceName = MotanUtils.getInterfaceName(caller, prefix);
+        String methodResourceName = MotanUtils.getMethodResourceName(caller, request, prefix);
+        try {
+            interfaceEntry = SphU.entry(interfaceResourceName, ResourceTypeConstants.COMMON_RPC, EntryType.OUT);
+            methodEntry = SphU.entry(methodResourceName, ResourceTypeConstants.COMMON_RPC, EntryType.OUT,
+                    request.getArguments());
+            Response result = caller.call(request);
+            if (result.getException() != null) {
+                Tracer.traceEntry(result.getException(), interfaceEntry);
+                Tracer.traceEntry(result.getException(), methodEntry);
+            }
+            return result;
+        } catch (BlockException e) {
+            return MotanAdapterGlobalConfig.getConsumerFallback().handle(caller, request, e);
+        } catch (MotanAbstractException e) {
+            Tracer.traceEntry(e, interfaceEntry);
+            Tracer.traceEntry(e, methodEntry);
+            throw e;
+        } finally {
+            if (methodEntry != null) {
+                methodEntry.exit(1, request.getArguments());
+            }
+            if (interfaceEntry != null) {
+                interfaceEntry.exit();
+            }
+        }
+    }
+}

sentinel-adapter/sentinel-motan-adapter/src/main/java/com/alibaba/csp/sentinel/adapter/motan/SentinelMotanProviderFilter.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright 1999-2020 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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
+ *
+ *      https://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 com.alibaba.csp.sentinel.adapter.motan;
+
+import com.alibaba.csp.sentinel.*;
+import com.alibaba.csp.sentinel.adapter.motan.config.MotanAdapterGlobalConfig;
+import com.alibaba.csp.sentinel.context.ContextUtil;
+import com.alibaba.csp.sentinel.log.RecordLog;
+import com.alibaba.csp.sentinel.slots.block.BlockException;
+import com.weibo.api.motan.common.MotanConstants;
+import com.weibo.api.motan.core.extension.Activation;
+import com.weibo.api.motan.core.extension.SpiMeta;
+import com.weibo.api.motan.exception.MotanAbstractException;
+import com.weibo.api.motan.filter.Filter;
+import com.weibo.api.motan.rpc.Caller;
+import com.weibo.api.motan.rpc.Request;
+import com.weibo.api.motan.rpc.Response;
+import java.util.Map;
+
+/**
+ * @author zhangxn8
+ */
+@Activation(key = MotanConstants.NODE_TYPE_SERVICE)
+@SpiMeta(name = MotanAdapterGlobalConfig.SENTINEL_MOTAN_PROVIDER)
+public class SentinelMotanProviderFilter implements Filter {
+
+    public SentinelMotanProviderFilter(){
+        RecordLog.info("Sentinel motan provider filter initialized");
+    }
+
+    @Override
+    public Response filter(Caller<?> caller, Request request) {
+        Entry interfaceEntry = null;
+        Entry methodEntry = null;
+        Map<String, String> attachment = request.getAttachments();
+        String origin = attachment.getOrDefault(MotanAdapterGlobalConfig.APPLICATION, MotanAdapterGlobalConfig.MOTAN);
+        String prefix = MotanAdapterGlobalConfig.getMotanProviderPrefix();
+        String interfaceResourceName = MotanUtils.getInterfaceName(caller, prefix);
+        String methodResourceName = MotanUtils.getMethodResourceName(caller, request, prefix);
+        try {
+            ContextUtil.enter(methodResourceName, origin);
+            interfaceEntry = SphU.entry(interfaceResourceName, ResourceTypeConstants.COMMON_RPC, EntryType.IN);
+            methodEntry = SphU.entry(methodResourceName, ResourceTypeConstants.COMMON_RPC, EntryType.IN,
+                    request.getArguments());
+            Response result = caller.call(request);
+            if (result.getException() != null) {
+                Tracer.traceEntry(result.getException(), interfaceEntry);
+                Tracer.traceEntry(result.getException(), methodEntry);
+            }
+            return result;
+        } catch (BlockException e) {
+            return MotanAdapterGlobalConfig.getProviderFallback().handle(caller, request, e);
+        } catch (MotanAbstractException e) {
+            Tracer.traceEntry(e, interfaceEntry);
+            Tracer.traceEntry(e, methodEntry);
+            throw e;
+        } finally {
+            if (methodEntry != null) {
+                methodEntry.exit(1, request.getArguments());
+            }
+            if (interfaceEntry != null) {
+                interfaceEntry.exit();
+            }
+            ContextUtil.exit();
+        }
+    }
+}