add proxy for SPI (#4520)

* 测试类报错

* add proxy for SPI

connector/core/src/main/java/com/alibaba/otter/canal/connector/core/spi/ProxyCanalMQProducer.java

@@ -0,0 +1,66 @@
+package com.alibaba.otter.canal.connector.core.spi;
+
+import com.alibaba.otter.canal.connector.core.config.MQProperties;
+import com.alibaba.otter.canal.connector.core.producer.MQDestination;
+import com.alibaba.otter.canal.connector.core.util.Callback;
+import com.alibaba.otter.canal.protocol.Message;
+import java.util.Properties;
+
+public class ProxyCanalMQProducer implements CanalMQProducer {
+
+    private CanalMQProducer canalMQProducer;
+
+    public ProxyCanalMQProducer(CanalMQProducer canalMQProducer) {
+        this.canalMQProducer = canalMQProducer;
+    }
+
+    private ClassLoader changeCL() {
+        ClassLoader cl = Thread.currentThread().getContextClassLoader();
+        Thread.currentThread().setContextClassLoader(canalMQProducer.getClass().getClassLoader());
+        return cl;
+    }
+
+    private void revertCL(ClassLoader cl) {
+        Thread.currentThread().setContextClassLoader(cl);
+    }
+
+    @Override
+    public void init(Properties properties) {
+        ClassLoader cl = changeCL();
+        try {
+            canalMQProducer.init(properties);
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public MQProperties getMqProperties() {
+        ClassLoader cl = changeCL();
+        try {
+            return canalMQProducer.getMqProperties();
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public void send(MQDestination canalDestination, Message message, Callback callback) {
+        ClassLoader cl = changeCL();
+        try {
+            canalMQProducer.send(canalDestination, message, callback);
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public void stop() {
+        ClassLoader cl = changeCL();
+        try {
+            canalMQProducer.stop();
+        } finally {
+            revertCL(cl);
+        }
+    }
+}

connector/core/src/main/java/com/alibaba/otter/canal/connector/core/spi/ProxyCanalMsgConsumer.java

@@ -0,0 +1,86 @@
+package com.alibaba.otter.canal.connector.core.spi;
+
+import com.alibaba.otter.canal.connector.core.consumer.CommonMessage;
+import java.util.List;
+import java.util.Properties;
+import java.util.concurrent.TimeUnit;
+
+public class ProxyCanalMsgConsumer implements CanalMsgConsumer {
+
+    private CanalMsgConsumer canalMsgConsumer;
+
+    public ProxyCanalMsgConsumer(CanalMsgConsumer canalMsgConsumer) {
+        this.canalMsgConsumer = canalMsgConsumer;
+    }
+
+    private ClassLoader changeCL() {
+        ClassLoader cl = Thread.currentThread().getContextClassLoader();
+        Thread.currentThread().setContextClassLoader(canalMsgConsumer.getClass().getClassLoader());
+        return cl;
+    }
+
+    private void revertCL(ClassLoader cl) {
+        Thread.currentThread().setContextClassLoader(cl);
+    }
+
+
+    @Override
+    public void init(Properties properties, String topic, String groupId) {
+        ClassLoader cl = changeCL();
+        try {
+            canalMsgConsumer.init(properties, topic, groupId);
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public void connect() {
+        ClassLoader cl = changeCL();
+        try {
+            canalMsgConsumer.connect();
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public List<CommonMessage> getMessage(Long timeout, TimeUnit unit) {
+        ClassLoader cl = changeCL();
+        try {
+            return canalMsgConsumer.getMessage(timeout, unit);
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public void ack() {
+        ClassLoader cl = changeCL();
+        try {
+            canalMsgConsumer.ack();
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public void rollback() {
+        ClassLoader cl = changeCL();
+        try {
+            canalMsgConsumer.rollback();
+        } finally {
+            revertCL(cl);
+        }
+    }
+
+    @Override
+    public void disconnect() {
+        ClassLoader cl = changeCL();
+        try {
+            canalMsgConsumer.disconnect();
+        } finally {
+            revertCL(cl);
+        }
+    }
+}