[ISSUE apache#367] Refactor connector

    1.support load plugin from eventMeshPluginDir
    2.remove connector plugin from runtime

build.gradle

@@ -188,45 +188,6 @@ subprojects {
         }
     }
 
-//    checkstyle {
-//        toolVersion = "8.32"
-//        ignoreFailures = true
-//        sourceSets = [sourceSets.main]
-//        configFile = '../style/codeStyle.xml' as File
-//        showViolations true
-//    }
-//
-//    tasks.withType(Checkstyle) {
-//        reports {
-//            xml.enabled false
-//            html.enabled true
-//        }
-//    }
-//
-//    sourceSets {
-//        main {
-//            java {
-//                srcDir 'src/main/java'
-//            }
-//
-//            resources {
-//                srcDir 'src/main/resources'
-//            }
-//
-//        }
-//
-//        test {
-//            java {
-//                srcDir 'src/test/java'
-//            }
-//
-//            resources {
-//                srcDir 'src/test/resources'
-//            }
-//
-//        }
-//    }
-
     spotbugs {
         //toolVersion = '4.2.3'
         ignoreFailures = true
@@ -271,14 +232,6 @@ subprojects {
         }
     }
 
-//        tasks.withType(Pmd) {
-//            reports {
-//                xml.enabled = false
-//                html.enabled = true
-//            }
-//        }
-
-
     pmd {
         consoleOutput = true
         toolVersion = "6.23.0"
@@ -314,6 +267,7 @@ subprojects {
                 from project.jar.getArchivePath()
                 exclude 'eventmesh-common*.jar'
                 exclude 'eventmesh-connector-api*.jar'
+                exclude 'eventmesh-connector-plugin*.jar'
                 exclude 'eventmesh-starter*.jar'
                 exclude 'eventmesh-test*.jar'
                 exclude 'eventmesh-sdk*.jar'

eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/plugin/PluginFactory.java → eventmesh-connector-api/src/main/java/org/apache/eventmesh/api/factory/ConnectorPluginFactory.java

@@ -17,18 +17,33 @@
  * under the License.
  */
 
-package org.apache.eventmesh.runtime.core.plugin;
+package org.apache.eventmesh.api.factory;
 
 import org.apache.eventmesh.api.consumer.MeshMQPushConsumer;
 import org.apache.eventmesh.api.producer.MeshMQProducer;
 import org.apache.eventmesh.spi.EventMeshExtensionFactory;
 
-public class PluginFactory {
+/**
+ * The factory to get connector {@link MeshMQProducer} and {@link MeshMQPushConsumer}
+ */
+public class ConnectorPluginFactory {
 
+    /**
+     * Get MeshMQProducer instance by plugin name
+     *
+     * @param connectorPluginName plugin name
+     * @return MeshMQProducer instance
+     */
     public static MeshMQProducer getMeshMQProducer(String connectorPluginName) {
         return EventMeshExtensionFactory.getExtension(MeshMQProducer.class, connectorPluginName);
     }
 
+    /**
+     * Get MeshMQPushConsumer instance by plugin name
+     *
+     * @param connectorPluginName plugin name
+     * @return MeshMQPushConsumer instance
+     */
     public static MeshMQPushConsumer getMeshMQPushConsumer(String connectorPluginName) {
         return EventMeshExtensionFactory.getExtension(MeshMQPushConsumer.class, connectorPluginName);
     }

eventmesh-connector-plugin/build.gradle

@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+task copyConnectorPlugin(dependsOn: ['jar']) {
+    doFirst {
+        new File(projectDir, '../eventmesh-connector-plugin/dist/apps').mkdir()
+        new File(projectDir, '../dist/plugin/connector').mkdirs()
+    }
+    doLast {
+        copy {
+            into('../eventmesh-connector-plugin/dist/apps/')
+            from project.jar.getArchivePath()
+            exclude {
+                "eventmesh-connector-plugin-${version}.jar"
+            }
+        }
+        copy {
+            into '../dist/plugin/connector'
+            from "../eventmesh-connector-plugin/dist/apps/eventmesh-connector-rocketmq-${version}.jar"
+        }
+    }
+}

eventmesh-connector-rocketmq/src/main/java/org/apache/eventmesh/connector/rocketmq/config/ConfigurationWrapper.java → eventmesh-connector-plugin/eventmesh-connector-rocketmq/src/main/java/org/apache/eventmesh/connector/rocketmq/config/ConfigurationWrapper.java

@@ -73,4 +73,4 @@ private void load() {
     public String getProp(String key) {
         return StringUtils.isEmpty(key) ? null : properties.getProperty(key, null);
     }
-}
+}

eventmesh-connector-rocketmq/src/test/java/org/apache/rocketmq/consumer/PushConsumerImplTest.java → eventmesh-connector-plugin/eventmesh-connector-rocketmq/src/test/java/org/apache/rocketmq/consumer/PushConsumerImplTest.java

@@ -23,7 +23,6 @@
 import java.util.Collections;
 import java.util.Properties;
 
-import io.openmessaging.api.Action;
 import io.openmessaging.api.AsyncConsumeContext;
 import io.openmessaging.api.AsyncMessageListener;
 import io.openmessaging.api.Consumer;

eventmesh-connector-rocketmq/src/main/resources/META-INF/services/org.apache.eventmesh.api.consumer.MeshMQPushConsumer → eventmesh-connector-plugin/gradle.properties

@@ -1,3 +1,4 @@
+#
 # 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.
@@ -12,5 +13,9 @@
 # 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.
-
-org.apache.eventmesh.connector.rocketmq.consumer.RocketMQConsumerImpl
+#
+group=org.apache.eventmesh
+version=1.2.0-SNAPSHOT
+jdk=1.8
+mavenUserName=
+mavenPassword=

eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/plugin/MQConsumerWrapper.java

@@ -19,13 +19,13 @@
 
 import java.util.List;
 import java.util.Properties;
-import java.util.ServiceLoader;
 
 import io.openmessaging.api.AsyncMessageListener;
 import io.openmessaging.api.Message;
 
 import org.apache.eventmesh.api.AbstractContext;
 import org.apache.eventmesh.api.consumer.MeshMQPushConsumer;
+import org.apache.eventmesh.api.factory.ConnectorPluginFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -36,7 +36,7 @@ public class MQConsumerWrapper extends MQWrapper {
     protected MeshMQPushConsumer meshMQPushConsumer;
 
     public MQConsumerWrapper(String connectorPluginType) {
-        this.meshMQPushConsumer = PluginFactory.getMeshMQPushConsumer(connectorPluginType);
+        this.meshMQPushConsumer = ConnectorPluginFactory.getMeshMQPushConsumer(connectorPluginType);
         if (meshMQPushConsumer == null) {
             logger.error("can't load the meshMQPushConsumer plugin, please check.");
             throw new RuntimeException("doesn't load the meshMQPushConsumer plugin, please check.");
@@ -52,24 +52,11 @@ public void unsubscribe(String topic) throws Exception {
     }
 
     public synchronized void init(Properties keyValue) throws Exception {
-        meshMQPushConsumer = getMeshMQPushConsumer();
-        if (meshMQPushConsumer == null) {
-            logger.error("can't load the meshMQPushConsumer plugin, please check.");
-            throw new RuntimeException("doesn't load the meshMQPushConsumer plugin, please check.");
-        }
 
         meshMQPushConsumer.init(keyValue);
         inited.compareAndSet(false, true);
     }
 
-    private MeshMQPushConsumer getMeshMQPushConsumer() {
-        ServiceLoader<MeshMQPushConsumer> meshMQPushConsumerServiceLoader = ServiceLoader.load(MeshMQPushConsumer.class);
-        if (meshMQPushConsumerServiceLoader.iterator().hasNext()) {
-            return meshMQPushConsumerServiceLoader.iterator().next();
-        }
-        return null;
-    }
-
     public synchronized void start() throws Exception {
         meshMQPushConsumer.start();
         started.compareAndSet(false, true);

eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/plugin/MQProducerWrapper.java

@@ -18,12 +18,12 @@
 package org.apache.eventmesh.runtime.core.plugin;
 
 import java.util.Properties;
-import java.util.ServiceLoader;
 
 import io.openmessaging.api.Message;
 import io.openmessaging.api.SendCallback;
 
 import org.apache.eventmesh.api.RRCallback;
+import org.apache.eventmesh.api.factory.ConnectorPluginFactory;
 import org.apache.eventmesh.api.producer.MeshMQProducer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -35,7 +35,7 @@ public class MQProducerWrapper extends MQWrapper {
     protected MeshMQProducer meshMQProducer;
 
     public MQProducerWrapper(String connectorPluginType) {
-        this.meshMQProducer = PluginFactory.getMeshMQProducer(connectorPluginType);
+        this.meshMQProducer = ConnectorPluginFactory.getMeshMQProducer(connectorPluginType);
         if (meshMQProducer == null) {
             logger.error("can't load the meshMQProducer plugin, please check.");
             throw new RuntimeException("doesn't load the meshMQProducer plugin, please check.");
@@ -47,24 +47,10 @@ public synchronized void init(Properties keyValue) throws Exception {
             return;
         }
 
-        meshMQProducer = getSpiMeshMQProducer();
-        if (meshMQProducer == null) {
-            logger.error("can't load the meshMQProducer plugin, please check.");
-            throw new RuntimeException("doesn't load the meshMQProducer plugin, please check.");
-        }
-
         meshMQProducer.init(keyValue);
         inited.compareAndSet(false, true);
     }
 
-    private MeshMQProducer getSpiMeshMQProducer() {
-        ServiceLoader<MeshMQProducer> meshMQProducerServiceLoader = ServiceLoader.load(MeshMQProducer.class);
-        if (meshMQProducerServiceLoader.iterator().hasNext()) {
-            return meshMQProducerServiceLoader.iterator().next();
-        }
-        return null;
-    }
-
     public synchronized void start() throws Exception {
         if (started.get()) {
             return;

eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/protocol/tcp/client/group/ClientGroupWrapper.java

@@ -50,7 +50,6 @@
 import org.apache.eventmesh.runtime.constants.EventMeshConstants;
 import org.apache.eventmesh.runtime.core.plugin.MQConsumerWrapper;
 import org.apache.eventmesh.runtime.core.plugin.MQProducerWrapper;
-import org.apache.eventmesh.runtime.core.plugin.PluginFactory;
 import org.apache.eventmesh.runtime.core.protocol.tcp.client.group.dispatch.DownstreamDispatchStrategy;
 import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.Session;
 import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.push.DownStreamMsgContext;

eventmesh-runtime/src/test/java/org/apache/eventmesh/runtime/demo/CCSubClient.java

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.eventmesh.runtime.demo;
+package demo;
 
 import io.netty.channel.ChannelHandlerContext;