Add the implements of naming module.

apm-collector-3.2.3/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/framework/Handler.java

@@ -21,5 +21,5 @@ package org.skywalking.apm.collector.core.framework;
 /**
  * @author peng-yongsheng
  */
-public interface Handler {
+public interface ServerHandler {
 }

apm-collector/apm-collector-cluster/collector-cluster-define/src/main/java/org/skywalking/apm/collector/cluster/ClusterModule.java

@@ -19,6 +19,7 @@
 package org.skywalking.apm.collector.cluster;
 
 import org.skywalking.apm.collector.cluster.service.ModuleRegisterService;
+import org.skywalking.apm.collector.cluster.service.ModuleRegistrationGetService;
 import org.skywalking.apm.collector.core.module.Module;
 import org.skywalking.apm.collector.core.module.Service;
 
@@ -34,6 +35,6 @@ public class ClusterModule extends Module {
     }
 
     @Override public Class<? extends Service>[] services() {
-        return new Class[] {ModuleRegisterService.class};
+        return new Class[] {ModuleRegisterService.class, ModuleRegistrationGetService.class};
     }
 }

apm-collector/apm-collector-cluster/collector-cluster-define/src/main/java/org/skywalking/apm/collector/cluster/service/ModuleRegistrationGetService.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.cluster.service;
+
+import java.util.Set;
+import org.skywalking.apm.collector.core.module.Service;
+
+/**
+ * @author peng-yongsheng
+ */
+public interface ModuleRegistrationGetService extends Service {
+    Set<String> get(String path);
+}

apm-collector/apm-collector-cluster/collector-cluster-redis-provider/src/main/java/org/skywalking/apm/collector/cluster/redis/ClusterModuleRedisProvider.java

@@ -21,6 +21,7 @@ package org.skywalking.apm.collector.cluster.redis;
 import java.util.Properties;
 import org.skywalking.apm.collector.cluster.ClusterModule;
 import org.skywalking.apm.collector.cluster.redis.service.RedisModuleRegisterService;
+import org.skywalking.apm.collector.cluster.redis.service.RedisModuleRegistrationGetService;
 import org.skywalking.apm.collector.cluster.service.ModuleRegisterService;
 import org.skywalking.apm.collector.core.module.Module;
 import org.skywalking.apm.collector.core.module.ModuleProvider;
@@ -41,6 +42,7 @@ public class ClusterModuleRedisProvider extends ModuleProvider {
 
     @Override public void prepare(Properties config) throws ServiceNotProvidedException {
         this.registerServiceImplementation(ModuleRegisterService.class, new RedisModuleRegisterService());
+        this.registerServiceImplementation(ModuleRegisterService.class, new RedisModuleRegistrationGetService());
     }
 
     @Override public void init(Properties config) throws ServiceNotProvidedException {

apm-collector/apm-collector-cluster/collector-cluster-redis-provider/src/main/java/org/skywalking/apm/collector/cluster/redis/service/RedisModuleRegistrationGetService.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.cluster.redis.service;
+
+import java.util.Set;
+import org.skywalking.apm.collector.cluster.service.ModuleRegistrationGetService;
+
+/**
+ * @author peng-yongsheng
+ */
+public class RedisModuleRegistrationGetService implements ModuleRegistrationGetService {
+
+    @Override public Set<String> get(String path) {
+        return null;
+    }
+}

apm-collector/apm-collector-cluster/collector-cluster-standalone-provider/src/main/java/org/skywalking/apm/collector/cluster/standalone/ClusterModuleStandaloneProvider.java

@@ -22,6 +22,7 @@ import java.util.Properties;
 import org.skywalking.apm.collector.cluster.ClusterModule;
 import org.skywalking.apm.collector.cluster.service.ModuleRegisterService;
 import org.skywalking.apm.collector.cluster.standalone.service.StandaloneModuleRegisterService;
+import org.skywalking.apm.collector.cluster.standalone.service.StandaloneModuleRegistrationGetService;
 import org.skywalking.apm.collector.core.module.Module;
 import org.skywalking.apm.collector.core.module.ModuleProvider;
 import org.skywalking.apm.collector.core.module.ServiceNotProvidedException;
@@ -41,6 +42,7 @@ public class ClusterModuleStandaloneProvider extends ModuleProvider {
 
     @Override public void prepare(Properties config) throws ServiceNotProvidedException {
         this.registerServiceImplementation(ModuleRegisterService.class, new StandaloneModuleRegisterService());
+        this.registerServiceImplementation(ModuleRegisterService.class, new StandaloneModuleRegistrationGetService());
     }
 
     @Override public void init(Properties config) throws ServiceNotProvidedException {

apm-collector/apm-collector-cluster/collector-cluster-standalone-provider/src/main/java/org/skywalking/apm/collector/cluster/standalone/service/StandaloneModuleRegistrationGetService.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.cluster.standalone.service;
+
+import java.util.Set;
+import org.skywalking.apm.collector.cluster.service.ModuleRegistrationGetService;
+
+/**
+ * @author peng-yongsheng
+ */
+public class StandaloneModuleRegistrationGetService implements ModuleRegistrationGetService {
+
+    @Override public Set<String> get(String path) {
+        return null;
+    }
+}

apm-collector/apm-collector-cluster/collector-cluster-zookeeper-provider/src/main/java/org/skywalking/apm/collector/cluster/zookeeper/ClusterModuleZKProvider.java → apm-collector/apm-collector-cluster/collector-cluster-zookeeper-provider/src/main/java/org/skywalking/apm/collector/cluster/zookeeper/ClusterModuleZookeeperProvider.java

@@ -21,7 +21,8 @@ package org.skywalking.apm.collector.cluster.zookeeper;
 import java.util.Properties;
 import org.skywalking.apm.collector.cluster.ClusterModule;
 import org.skywalking.apm.collector.cluster.service.ModuleRegisterService;
-import org.skywalking.apm.collector.cluster.zookeeper.service.ZKModuleRegisterService;
+import org.skywalking.apm.collector.cluster.zookeeper.service.ZookeeperModuleRegisterService;
+import org.skywalking.apm.collector.cluster.zookeeper.service.ZookeeperModuleRegistrationGetService;
 import org.skywalking.apm.collector.core.module.Module;
 import org.skywalking.apm.collector.core.module.ModuleProvider;
 import org.skywalking.apm.collector.core.module.ServiceNotProvidedException;
@@ -29,7 +30,7 @@ import org.skywalking.apm.collector.core.module.ServiceNotProvidedException;
 /**
  * @author peng-yongsheng
  */
-public class ClusterModuleZKProvider extends ModuleProvider {
+public class ClusterModuleZookeeperProvider extends ModuleProvider {
 
     @Override public String name() {
         return "zookeeper";
@@ -40,7 +41,8 @@ public class ClusterModuleZKProvider extends ModuleProvider {
     }
 
     @Override public void prepare(Properties config) throws ServiceNotProvidedException {
-        this.registerServiceImplementation(ModuleRegisterService.class, new ZKModuleRegisterService());
+        this.registerServiceImplementation(ModuleRegisterService.class, new ZookeeperModuleRegisterService());
+        this.registerServiceImplementation(ModuleRegisterService.class, new ZookeeperModuleRegistrationGetService());
     }
 
     @Override public void init(Properties config) throws ServiceNotProvidedException {

apm-collector/apm-collector-cluster/collector-cluster-zookeeper-provider/src/main/java/org/skywalking/apm/collector/cluster/zookeeper/service/ZKModuleRegisterService.java → apm-collector/apm-collector-cluster/collector-cluster-zookeeper-provider/src/main/java/org/skywalking/apm/collector/cluster/zookeeper/service/ZookeeperModuleRegisterService.java

@@ -23,5 +23,5 @@ import org.skywalking.apm.collector.cluster.service.ModuleRegisterService;
 /**
  * @author peng-yongsheng
  */
-public class ZKModuleRegisterService implements ModuleRegisterService {
+public class ZookeeperModuleRegisterService implements ModuleRegisterService {
 }

apm-collector/apm-collector-cluster/collector-cluster-zookeeper-provider/src/main/java/org/skywalking/apm/collector/cluster/zookeeper/service/ZookeeperModuleRegistrationGetService.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.cluster.zookeeper.service;
+
+import java.util.Set;
+import org.skywalking.apm.collector.cluster.service.ModuleRegistrationGetService;
+
+/**
+ * @author peng-yongsheng
+ */
+public class ZookeeperModuleRegistrationGetService implements ModuleRegistrationGetService {
+    @Override public Set<String> get(String path) {
+        return null;
+    }
+}

apm-collector/apm-collector-cluster/collector-cluster-zookeeper-provider/src/main/resources/META-INF/services/org.skywalking.apm.collector.core.module.ModuleProvider

@@ -16,4 +16,4 @@
 # Project repository: https://github.com/OpenSkywalking/skywalking
 #
 
-org.skywalking.apm.collector.cluster.zookeeper.ClusterModuleZKProvider
\ No newline at end of file
+org.skywalking.apm.collector.cluster.zookeeper.ClusterModuleZookeeperProvider
\ No newline at end of file

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/elasticsearch/ElasticSearchClient.java

@@ -38,8 +38,8 @@ import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.transport.InetSocketTransportAddress;
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.transport.client.PreBuiltTransportClient;
-import org.skywalking.apm.collector.core.client.Client;
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.Client;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/elasticsearch/ElasticSearchClientException.java

@@ -18,7 +18,7 @@
 
 package org.skywalking.apm.collector.client.elasticsearch;
 
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/grpc/GRPCClient.java

@@ -20,8 +20,8 @@ package org.skywalking.apm.collector.client.grpc;
 
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
-import org.skywalking.apm.collector.core.client.Client;
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.Client;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/grpc/GRPCClientException.java

@@ -18,7 +18,7 @@
 
 package org.skywalking.apm.collector.client.grpc;
 
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/h2/H2Client.java

@@ -25,7 +25,7 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 import org.h2.util.IOUtils;
-import org.skywalking.apm.collector.core.client.Client;
+import org.skywalking.apm.collector.core.component.client.Client;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/h2/H2ClientException.java

@@ -18,7 +18,7 @@
 
 package org.skywalking.apm.collector.client.h2;
 
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/redis/RedisClient.java

@@ -18,8 +18,8 @@
 
 package org.skywalking.apm.collector.client.redis;
 
-import org.skywalking.apm.collector.core.client.Client;
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.Client;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 import redis.clients.jedis.Jedis;
 
 /**

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/redis/RedisClientException.java

@@ -18,7 +18,7 @@
 
 package org.skywalking.apm.collector.client.redis;
 
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/zookeeper/ZookeeperClient.java

@@ -26,7 +26,7 @@ import org.apache.zookeeper.Watcher;
 import org.apache.zookeeper.ZooKeeper;
 import org.apache.zookeeper.data.ACL;
 import org.apache.zookeeper.data.Stat;
-import org.skywalking.apm.collector.core.client.Client;
+import org.skywalking.apm.collector.core.component.client.Client;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

apm-collector/apm-collector-component/client-component/src/main/java/org/skywalking/apm/collector/client/zookeeper/ZookeeperClientException.java

@@ -18,7 +18,7 @@
 
 package org.skywalking.apm.collector.client.zookeeper;
 
-import org.skywalking.apm.collector.core.client.ClientException;
+import org.skywalking.apm.collector.core.component.client.ClientException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-component/server-component/pom.xml

@@ -12,4 +12,25 @@
     <artifactId>server-component</artifactId>
     <packaging>jar</packaging>
 
+    <properties>
+        <jetty.version>9.4.2.v20170220</jetty.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.skywalking</groupId>
+            <artifactId>apm-network</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.jetty</groupId>
+            <artifactId>jetty-server</artifactId>
+            <version>${jetty.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.jetty</groupId>
+            <artifactId>jetty-servlet</artifactId>
+            <version>${jetty.version}</version>
+        </dependency>
+    </dependencies>
 </project>
\ No newline at end of file

apm-collector/apm-collector-component/server-component/src/main/java/org/skywalking/apm/collector/server/grpc/GRPCServer.java

@@ -21,9 +21,9 @@ package org.skywalking.apm.collector.server.grpc;
 import io.grpc.netty.NettyServerBuilder;
 import java.io.IOException;
 import java.net.InetSocketAddress;
-import org.skywalking.apm.collector.core.framework.Handler;
-import org.skywalking.apm.collector.core.server.Server;
-import org.skywalking.apm.collector.core.server.ServerException;
+import org.skywalking.apm.collector.core.component.server.Server;
+import org.skywalking.apm.collector.core.component.server.ServerException;
+import org.skywalking.apm.collector.core.component.server.ServerHandler;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -67,7 +67,7 @@ public class GRPCServer implements Server {
         }
     }
 
-    @Override public void addHandler(Handler handler) {
+    @Override public void addHandler(ServerHandler handler) {
         nettyServerBuilder.addService((io.grpc.BindableService)handler);
     }
 }

apm-collector/apm-collector-component/server-component/src/main/java/org/skywalking/apm/collector/server/grpc/GRPCServerException.java

@@ -18,7 +18,7 @@
 
 package org.skywalking.apm.collector.server.grpc;
 
-import org.skywalking.apm.collector.core.server.ServerException;
+import org.skywalking.apm.collector.core.component.server.ServerException;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-core/pom.xml

@@ -12,4 +12,16 @@
     <artifactId>apm-collector-core</artifactId>
     <packaging>jar</packaging>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.yaml</groupId>
+            <artifactId>snakeyaml</artifactId>
+            <version>1.18</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.8.1</version>
+        </dependency>
+    </dependencies>
 </project>
\ No newline at end of file

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/client/Client.java → apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/client/Client.java

@@ -16,7 +16,7 @@
  * Project repository: https://github.com/OpenSkywalking/skywalking
  */
 
-package org.skywalking.apm.collector.core.client;
+package org.skywalking.apm.collector.core.component.client;
 
 /**
  * @author peng-yongsheng

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/client/ClientException.java → apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/client/ClientException.java

@@ -16,7 +16,7 @@
  * Project repository: https://github.com/OpenSkywalking/skywalking
  */
 
-package org.skywalking.apm.collector.core.client;
+package org.skywalking.apm.collector.core.component.client;
 
 import org.skywalking.apm.collector.core.CollectorException;
 

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/server/Server.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.component.server;
+
+/**
+ * @author peng-yongsheng
+ */
+public interface Server {
+
+    String hostPort();
+
+    String serverClassify();
+
+    void initialize() throws ServerException;
+
+    void start() throws ServerException;
+
+    void addHandler(ServerHandler handler);
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/server/ServerException.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.component.server;
+
+import org.skywalking.apm.collector.core.CollectorException;
+
+/**
+ * @author peng-yongsheng
+ */
+public abstract class ServerException extends CollectorException {
+
+    public ServerException(String message) {
+        super(message);
+    }
+
+    public ServerException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/server/ServerHandler.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.component.server;
+
+/**
+ * @author peng-yongsheng
+ */
+public interface ServerHandler {
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/server/ServerHolder.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.component.server;
+
+import java.util.LinkedList;
+import java.util.List;
+import org.skywalking.apm.collector.core.util.CollectionUtils;
+import org.skywalking.apm.collector.core.util.ObjectUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author peng-yongsheng
+ */
+public class ServerHolder {
+
+    private final Logger logger = LoggerFactory.getLogger(ServerHolder.class);
+
+    private List<Server> servers;
+
+    public ServerHolder() {
+        servers = new LinkedList<>();
+    }
+
+    public void holdServer(Server newServer, List<ServerHandler> handlers) throws ServerException {
+        if (ObjectUtils.isEmpty(newServer) || CollectionUtils.isEmpty(handlers)) {
+            return;
+        }
+
+        boolean isNewServer = true;
+        for (Server server : servers) {
+            if (server.hostPort().equals(newServer.hostPort()) && server.serverClassify().equals(newServer.serverClassify())) {
+                isNewServer = false;
+                addHandler(handlers, server);
+            }
+        }
+        if (isNewServer) {
+            newServer.initialize();
+            servers.add(newServer);
+            addHandler(handlers, newServer);
+        }
+    }
+
+    private void addHandler(List<ServerHandler> handlers, Server server) {
+        if (CollectionUtils.isNotEmpty(handlers)) {
+            handlers.forEach(handler -> {
+                server.addHandler(handler);
+                logger.debug("add handler into server: {}, handler name: {}", server.hostPort(), handler.getClass().getName());
+            });
+        }
+    }
+
+    public List<Server> getServers() {
+        return servers;
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/component/server/ServerModuleDefine.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.component.server;
+
+import org.skywalking.apm.collector.core.module.ModuleDefine;
+
+/**
+ * @author peng-yongsheng
+ */
+public abstract class ServerModuleDefine extends ModuleDefine {
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/module/Module.java

@@ -38,7 +38,7 @@ public abstract class Module {
     /**
      * @return the {@link Service} provided by this module.
      */
-    public abstract Class<? extends Service>[] services();
+    public abstract Class[] services();
 
     /**
      * Run the prepare stage for the module, including finding all potential providers, and asking them to prepare.

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/BytesUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+/**
+ * @author peng-yongsheng
+ */
+public class BytesUtils {
+
+    public static byte[] long2Bytes(long num) {
+        byte[] byteNum = new byte[8];
+        for (int ix = 0; ix < 8; ++ix) {
+            int offset = 64 - (ix + 1) * 8;
+            byteNum[ix] = (byte)((num >> offset) & 0xff);
+        }
+        return byteNum;
+    }
+
+    public static long bytes2Long(byte[] byteNum) {
+        long num = 0;
+        for (int ix = 0; ix < 8; ++ix) {
+            num <<= 8;
+            num |= byteNum[ix] & 0xff;
+        }
+        return num;
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/CollectionUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author peng-yongsheng
+ */
+public class CollectionUtils {
+
+    public static boolean isEmpty(Map map) {
+        return map == null || map.size() == 0;
+    }
+
+    public static boolean isEmpty(List list) {
+        return list == null || list.size() == 0;
+    }
+
+    public static boolean isNotEmpty(List list) {
+        return !isEmpty(list);
+    }
+
+    public static boolean isNotEmpty(Map map) {
+        return !isEmpty(map);
+    }
+
+    public static <T> boolean isNotEmpty(T[] array) {
+        return array != null && array.length > 0;
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/ColumnNameUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+/**
+ * @author peng-yongsheng
+ */
+public enum ColumnNameUtils {
+    INSTANCE;
+
+    public String rename(String columnName) {
+        StringBuilder renamedColumnName = new StringBuilder();
+        char[] chars = columnName.toLowerCase().toCharArray();
+
+        boolean findUnderline = false;
+        for (char character : chars) {
+            if (character == '_') {
+                findUnderline = true;
+            } else if (findUnderline) {
+                renamedColumnName.append(String.valueOf(character).toUpperCase());
+                findUnderline = false;
+            } else {
+                renamedColumnName.append(character);
+            }
+        }
+        return renamedColumnName.toString();
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/Const.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+/**
+ * @author peng-yongsheng
+ */
+public class Const {
+    public static final String ID_SPLIT = "_";
+    public static final int USER_ID = 1;
+    public static final int NONE_SERVICE_ID = 1;
+    public static final String NONE_SERVICE_NAME = "None";
+    public static final String USER_CODE = "User";
+    public static final String SEGMENT_SPAN_SPLIT = "S";
+    public static final String UNKNOWN = "Unknown";
+    public static final String EXCEPTION = "Exception";
+    public static final String EMPTY_STRING = "";
+    public static final String FILE_SUFFIX = "sw";
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/DefinitionLoader.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+import java.util.Properties;
+import org.skywalking.apm.collector.core.framework.DefinitionFile;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author peng-yongsheng
+ */
+public class DefinitionLoader<D> implements Iterable<D> {
+
+    private final Logger logger = LoggerFactory.getLogger(DefinitionLoader.class);
+
+    private final Class<D> definition;
+    private final DefinitionFile definitionFile;
+
+    protected DefinitionLoader(Class<D> svc, DefinitionFile definitionFile) {
+        this.definition = Objects.requireNonNull(svc, "definition interface cannot be null");
+        this.definitionFile = definitionFile;
+    }
+
+    public static <D> DefinitionLoader<D> load(Class<D> definition, DefinitionFile definitionFile) {
+        return new DefinitionLoader(definition, definitionFile);
+    }
+
+    @Override public final Iterator<D> iterator() {
+        logger.info("load definition file: {}", definitionFile.get());
+        List<String> definitionList = new LinkedList<>();
+        try {
+            Enumeration<URL> urlEnumeration = this.getClass().getClassLoader().getResources(definitionFile.get());
+            while (urlEnumeration.hasMoreElements()) {
+                URL definitionFileURL = urlEnumeration.nextElement();
+                logger.info("definition file url: {}", definitionFileURL.getPath());
+                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(definitionFileURL.openStream()));
+                Properties properties = new Properties();
+                properties.load(bufferedReader);
+
+                Enumeration defineItem = properties.propertyNames();
+                while (defineItem.hasMoreElements()) {
+                    String fullNameClass = (String)defineItem.nextElement();
+                    definitionList.add(fullNameClass);
+                }
+            }
+        } catch (IOException e) {
+            logger.error(e.getMessage(), e);
+        }
+
+        Iterator<String> moduleDefineIterator = definitionList.iterator();
+
+        return new Iterator<D>() {
+            @Override public boolean hasNext() {
+                return moduleDefineIterator.hasNext();
+            }
+
+            @Override public D next() {
+                String definitionClass = moduleDefineIterator.next();
+                logger.info("definitionClass: {}", definitionClass);
+                try {
+                    Class c = Class.forName(definitionClass);
+                    return (D)c.newInstance();
+                } catch (Exception e) {
+                    logger.error(e.getMessage(), e);
+                }
+                return null;
+            }
+        };
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/ObjectUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+/**
+ * @author peng-yongsheng
+ */
+public class ObjectUtils {
+    public static boolean isEmpty(Object obj) {
+        return obj == null;
+    }
+
+    public static boolean isNotEmpty(Object obj) {
+        return !isEmpty(obj);
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/ResourceUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.URL;
+
+/**
+ * @author peng-yongsheng
+ */
+public class ResourceUtils {
+
+    public static Reader read(String fileName) throws FileNotFoundException {
+        URL url = ResourceUtils.class.getClassLoader().getResource(fileName);
+        if (url == null) {
+            throw new FileNotFoundException("file not found: " + fileName);
+        }
+        InputStream inputStream = ResourceUtils.class.getClassLoader().getResourceAsStream(fileName);
+        return new InputStreamReader(inputStream);
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/StringUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+/**
+ * @author peng-yongsheng
+ */
+public class StringUtils {
+
+    public static final String EMPTY_STRING = "";
+
+    public static boolean isEmpty(Object str) {
+        return str == null || EMPTY_STRING.equals(str);
+    }
+
+    public static boolean isNotEmpty(Object str) {
+        return !isEmpty(str);
+    }
+}

apm-collector/apm-collector-core/src/main/java/org/skywalking/apm/collector/core/util/TimeBucketUtils.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.core.util;
+
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.TimeZone;
+import org.skywalking.apm.collector.core.framework.UnexpectedException;
+
+/**
+ * @author peng-yongsheng
+ */
+public enum TimeBucketUtils {
+    INSTANCE;
+
+    private final SimpleDateFormat dayDateFormat = new SimpleDateFormat("yyyyMMdd");
+    private final SimpleDateFormat hourDateFormat = new SimpleDateFormat("yyyyMMddHH");
+    private final SimpleDateFormat minuteDateFormat = new SimpleDateFormat("yyyyMMddHHmm");
+    private final SimpleDateFormat secondDateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
+
+    public long getMinuteTimeBucket(long time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTimeInMillis(time);
+        String timeStr = minuteDateFormat.format(calendar.getTime());
+        return Long.valueOf(timeStr);
+    }
+
+    public long getSecondTimeBucket(long time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTimeInMillis(time);
+        String timeStr = secondDateFormat.format(calendar.getTime());
+        return Long.valueOf(timeStr);
+    }
+
+    public long getHourTimeBucket(long time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTimeInMillis(time);
+        String timeStr = hourDateFormat.format(calendar.getTime()) + "00";
+        return Long.valueOf(timeStr);
+    }
+
+    public long getDayTimeBucket(long time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTimeInMillis(time);
+        String timeStr = dayDateFormat.format(calendar.getTime()) + "0000";
+        return Long.valueOf(timeStr);
+    }
+
+    public long changeTimeBucket2TimeStamp(String timeBucketType, long timeBucket) {
+        if (TimeBucketType.SECOND.name().toLowerCase().equals(timeBucketType.toLowerCase())) {
+            Calendar calendar = Calendar.getInstance();
+            calendar.set(Calendar.YEAR, Integer.valueOf(String.valueOf(timeBucket).substring(0, 4)));
+            calendar.set(Calendar.MONTH, Integer.valueOf(String.valueOf(timeBucket).substring(4, 6)) - 1);
+            calendar.set(Calendar.DAY_OF_MONTH, Integer.valueOf(String.valueOf(timeBucket).substring(6, 8)));
+            calendar.set(Calendar.HOUR_OF_DAY, Integer.valueOf(String.valueOf(timeBucket).substring(8, 10)));
+            calendar.set(Calendar.MINUTE, Integer.valueOf(String.valueOf(timeBucket).substring(10, 12)));
+            calendar.set(Calendar.SECOND, Integer.valueOf(String.valueOf(timeBucket).substring(12, 14)));
+            return calendar.getTimeInMillis();
+        } else if (TimeBucketType.MINUTE.name().toLowerCase().equals(timeBucketType.toLowerCase())) {
+            Calendar calendar = Calendar.getInstance();
+            calendar.set(Calendar.YEAR, Integer.valueOf(String.valueOf(timeBucket).substring(0, 4)));
+            calendar.set(Calendar.MONTH, Integer.valueOf(String.valueOf(timeBucket).substring(4, 6)) - 1);
+            calendar.set(Calendar.DAY_OF_MONTH, Integer.valueOf(String.valueOf(timeBucket).substring(6, 8)));
+            calendar.set(Calendar.HOUR_OF_DAY, Integer.valueOf(String.valueOf(timeBucket).substring(8, 10)));
+            calendar.set(Calendar.MINUTE, Integer.valueOf(String.valueOf(timeBucket).substring(10, 12)));
+            return calendar.getTimeInMillis();
+        } else {
+            throw new UnexpectedException("time bucket type must be second or minute");
+        }
+    }
+
+    public long[] getFiveSecondTimeBuckets(long secondTimeBucket) {
+        long timeStamp = changeTimeBucket2TimeStamp(TimeBucketType.SECOND.name(), secondTimeBucket);
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTimeInMillis(timeStamp);
+
+        long[] timeBuckets = new long[5];
+        timeBuckets[0] = secondTimeBucket;
+        for (int i = 0; i < 4; i++) {
+            calendar.add(Calendar.SECOND, -1);
+            timeBuckets[i + 1] = getSecondTimeBucket(calendar.getTimeInMillis());
+        }
+        return timeBuckets;
+    }
+
+    public long changeToUTCTimeBucket(long timeBucket) {
+        String timeBucketStr = String.valueOf(timeBucket);
+
+        if (TimeZone.getDefault().getID().equals("GMT+08:00") || timeBucketStr.endsWith("0000")) {
+            return timeBucket;
+        } else {
+            return timeBucket - 800;
+        }
+    }
+
+    public long addSecondForSecondTimeBucket(String timeBucketType, long timeBucket, int second) {
+        if (!TimeBucketType.SECOND.name().equals(timeBucketType)) {
+            throw new UnexpectedException("time bucket type must be second ");
+        }
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTimeInMillis(changeTimeBucket2TimeStamp(timeBucketType, timeBucket));
+        calendar.add(Calendar.SECOND, second);
+
+        return getSecondTimeBucket(calendar.getTimeInMillis());
+    }
+
+    public enum TimeBucketType {
+        SECOND, MINUTE, HOUR, DAY
+    }
+}

apm-collector/apm-collector-naming/collector-naming-jetty-provider/pom.xml

@@ -41,5 +41,10 @@
             <artifactId>collector-cluster-define</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.skywalking</groupId>
+            <artifactId>server-component</artifactId>
+            <version>${project.version}</version>
+        </dependency>
     </dependencies>
 </project>
\ No newline at end of file

apm-collector/apm-collector-naming/collector-naming-jetty-provider/src/main/java/org/skywalking/apm/collector/naming/jetty/handler/AgentGRPCNamingHandler.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.naming.jetty.handler;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import javax.servlet.http.HttpServletRequest;
+import org.skywalking.apm.collector.server.jetty.ArgumentsParseException;
+import org.skywalking.apm.collector.server.jetty.JettyHandler;
+
+/**
+ * @author peng-yongsheng
+ */
+public class AgentGRPCNamingHandler extends JettyHandler {
+
+    @Override public String pathSpec() {
+        return "/agentstream/grpc";
+    }
+
+    @Override protected JsonElement doGet(HttpServletRequest req) throws ArgumentsParseException {
+//        ModuleManager
+//        ClusterModuleRegistrationReader reader = CollectorContextHelper.INSTANCE.getClusterModuleContext().getReader();
+//        Set<String> servers = reader.read(AgentStreamGRPCDataListener.PATH);
+        JsonArray serverArray = new JsonArray();
+//        servers.forEach(serverArray::add);
+        return serverArray;
+    }
+
+    @Override protected JsonElement doPost(HttpServletRequest req) throws ArgumentsParseException {
+        throw new UnsupportedOperationException();
+    }
+}

apm-collector/apm-collector-naming/collector-naming-jetty-provider/src/main/java/org/skywalking/apm/collector/naming/jetty/handler/AgentJettyNamingHandler.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.naming.jetty.handler;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import javax.servlet.http.HttpServletRequest;
+import org.skywalking.apm.collector.server.jetty.ArgumentsParseException;
+import org.skywalking.apm.collector.server.jetty.JettyHandler;
+
+/**
+ * @author peng-yongsheng
+ */
+public class AgentJettyNamingHandler extends JettyHandler {
+
+    @Override public String pathSpec() {
+        return "/agentstream/jetty";
+    }
+
+    @Override protected JsonElement doGet(HttpServletRequest req) throws ArgumentsParseException {
+//        ClusterModuleRegistrationReader reader = CollectorContextHelper.INSTANCE.getClusterModuleContext().getReader();
+//        Set<String> servers = reader.read(AgentStreamJettyDataListener.PATH);
+        JsonArray serverArray = new JsonArray();
+//        servers.forEach(serverArray::add);
+        return serverArray;
+    }
+
+    @Override protected JsonElement doPost(HttpServletRequest req) throws ArgumentsParseException {
+        throw new UnsupportedOperationException();
+    }
+}

apm-collector/apm-collector-naming/collector-naming-jetty-provider/src/main/java/org/skywalking/apm/collector/naming/jetty/handler/UIJettyNamingHandler.java

+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * 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.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.collector.naming.jetty.handler;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import javax.servlet.http.HttpServletRequest;
+import org.skywalking.apm.collector.server.jetty.ArgumentsParseException;
+import org.skywalking.apm.collector.server.jetty.JettyHandler;
+
+/**
+ * @author peng-yongsheng
+ */
+public class UIJettyNamingHandler extends JettyHandler {
+
+    @Override public String pathSpec() {
+        return "/ui/jetty";
+    }
+
+    @Override protected JsonElement doGet(HttpServletRequest req) throws ArgumentsParseException {
+//        ClusterModuleRegistrationReader reader = CollectorContextHelper.INSTANCE.getClusterModuleContext().getReader();
+//        Set<String> servers = reader.read(UIJettyDataListener.PATH);
+        JsonArray serverArray = new JsonArray();
+//        servers.forEach(serverArray::add);
+        return serverArray;
+    }
+
+    @Override protected JsonElement doPost(HttpServletRequest req) throws ArgumentsParseException {
+        throw new UnsupportedOperationException();
+    }
+}