init

sentinel/sentinel-demo/sentinel-demo-cluster/sentinel-demo-cluster-server-alone/pom.xml

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+<?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-demo-cluster</artifactId>
+        <groupId>com.alibaba.csp</groupId>
+        <version>1.8.3</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>sentinel-demo-cluster-server-alone</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-transport-simple-http</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-parameter-flow-control</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-cluster-server-default</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-datasource-nacos</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.2.3</version>
+        </dependency>
+    </dependencies>
+</project>

sentinel/sentinel-demo/sentinel-demo-cluster/sentinel-demo-cluster-server-alone/src/main/java/com/alibaba/csp/sentinel/demo/cluster/ClusterServerDemo.java

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+/*
+ * Copyright 1999-2018 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
+ *
+ *      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 com.alibaba.csp.sentinel.demo.cluster;
+
+import java.util.Collections;
+
+import com.alibaba.csp.sentinel.cluster.server.ClusterTokenServer;
+import com.alibaba.csp.sentinel.cluster.server.SentinelDefaultTokenServer;
+import com.alibaba.csp.sentinel.cluster.server.config.ClusterServerConfigManager;
+import com.alibaba.csp.sentinel.cluster.server.config.ServerTransportConfig;
+
+/**
+ * <p>Cluster server demo (alone mode).</p>
+ * <p>Here we init the cluster server dynamic data sources in
+ * {@link com.alibaba.csp.sentinel.demo.cluster.init.DemoClusterServerInitFunc}.</p>
+ *
+ * @author Eric Zhao
+ * @since 1.4.0
+ */
+public class ClusterServerDemo {
+
+    public static void main(String[] args) throws Exception {
+        // Not embedded mode by default (alone mode).
+        ClusterTokenServer tokenServer = new SentinelDefaultTokenServer();
+
+        // A sample for manually load config for cluster server.
+        // It's recommended to use dynamic data source to cluster manage config and rules.
+        // See the sample in DemoClusterServerInitFunc for detail.
+        ClusterServerConfigManager.loadGlobalTransportConfig(new ServerTransportConfig()
+            .setIdleSeconds(600)
+            .setPort(11111));
+        ClusterServerConfigManager.loadServerNamespaceSet(Collections.singleton(DemoConstants.APP_NAME));
+
+        // Start the server.
+        tokenServer.start();
+    }
+}

sentinel/sentinel-demo/sentinel-demo-cluster/sentinel-demo-cluster-server-alone/src/main/java/com/alibaba/csp/sentinel/demo/cluster/DemoConstants.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 1999-2018 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
+ *
+ *      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 com.alibaba.csp.sentinel.demo.cluster;
+
+/**
+ * @author Eric Zhao
+ */
+public final class DemoConstants {
+
+    public static final String APP_NAME = "appA";
+
+    public static final String FLOW_POSTFIX = "-flow-rules";
+    public static final String PARAM_FLOW_POSTFIX = "-param-rules";
+
+    private DemoConstants() {}
+}

sentinel/sentinel-demo/sentinel-demo-cluster/sentinel-demo-cluster-server-alone/src/main/java/com/alibaba/csp/sentinel/demo/cluster/init/DemoClusterServerInitFunc.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright 1999-2018 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
+ *
+ *      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 com.alibaba.csp.sentinel.demo.cluster.init;
+
+import java.util.List;
+import java.util.Set;
+
+import com.alibaba.csp.sentinel.cluster.flow.rule.ClusterFlowRuleManager;
+import com.alibaba.csp.sentinel.cluster.flow.rule.ClusterParamFlowRuleManager;
+import com.alibaba.csp.sentinel.cluster.server.config.ClusterServerConfigManager;
+import com.alibaba.csp.sentinel.cluster.server.config.ServerTransportConfig;
+import com.alibaba.csp.sentinel.datasource.ReadableDataSource;
+import com.alibaba.csp.sentinel.datasource.nacos.NacosDataSource;
+import com.alibaba.csp.sentinel.demo.cluster.DemoConstants;
+import com.alibaba.csp.sentinel.init.InitFunc;
+import com.alibaba.csp.sentinel.slots.block.flow.FlowRule;
+import com.alibaba.csp.sentinel.slots.block.flow.param.ParamFlowRule;
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.TypeReference;
+
+/**
+ * @author Eric Zhao
+ */
+public class DemoClusterServerInitFunc implements InitFunc {
+
+    private final String remoteAddress = "localhost:8848";
+    private final String groupId = "SENTINEL_GROUP";
+    private final String namespaceSetDataId = "cluster-server-namespace-set";
+    private final String serverTransportDataId = "cluster-server-transport-config";
+
+    @Override
+    public void init() throws Exception {
+        // Register cluster flow rule property supplier which creates data source by namespace.
+        ClusterFlowRuleManager.setPropertySupplier(namespace -> {
+            ReadableDataSource<String, List<FlowRule>> ds = new NacosDataSource<>(remoteAddress, groupId,
+                namespace + DemoConstants.FLOW_POSTFIX,
+                source -> JSON.parseObject(source, new TypeReference<List<FlowRule>>() {}));
+            return ds.getProperty();
+        });
+        // Register cluster parameter flow rule property supplier.
+        ClusterParamFlowRuleManager.setPropertySupplier(namespace -> {
+            ReadableDataSource<String, List<ParamFlowRule>> ds = new NacosDataSource<>(remoteAddress, groupId,
+                namespace + DemoConstants.PARAM_FLOW_POSTFIX,
+                source -> JSON.parseObject(source, new TypeReference<List<ParamFlowRule>>() {}));
+            return ds.getProperty();
+        });
+
+        // Server namespace set (scope) data source.
+        ReadableDataSource<String, Set<String>> namespaceDs = new NacosDataSource<>(remoteAddress, groupId,
+            namespaceSetDataId, source -> JSON.parseObject(source, new TypeReference<Set<String>>() {}));
+        ClusterServerConfigManager.registerNamespaceSetProperty(namespaceDs.getProperty());
+        // Server transport configuration data source.
+        ReadableDataSource<String, ServerTransportConfig> transportConfigDs = new NacosDataSource<>(remoteAddress,
+            groupId, serverTransportDataId,
+            source -> JSON.parseObject(source, new TypeReference<ServerTransportConfig>() {}));
+        ClusterServerConfigManager.registerServerTransportProperty(transportConfigDs.getProperty());
+    }
+}

sentinel/sentinel-demo/sentinel-demo-cluster/sentinel-demo-cluster-server-alone/src/main/resources/META-INF/services/com.alibaba.csp.sentinel.init.InitFunc

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+com.alibaba.csp.sentinel.demo.cluster.init.DemoClusterServerInitFunc