Update transport module to carry appName in heartbeat message

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

sentinel-transport/sentinel-transport-netty-http/src/main/java/com/alibaba/csp/sentinel/transport/heartbeat/HttpHeartbeatSender.java

@@ -19,6 +19,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import com.alibaba.csp.sentinel.Constants;
+import com.alibaba.csp.sentinel.config.SentinelConfig;
 import com.alibaba.csp.sentinel.spi.SpiOrder;
 import com.alibaba.csp.sentinel.transport.config.TransportConfig;
 import com.alibaba.csp.sentinel.log.RecordLog;
@@ -110,6 +111,7 @@ public class HttpHeartbeatSender implements HeartbeatSender {
         uriBuilder.setScheme("http").setHost(consoleHost).setPort(consolePort)
             .setPath("/registry/machine")
             .setParameter("app", AppNameUtil.getAppName())
+            .setParameter("app_type", String.valueOf(SentinelConfig.getAppType()))
             .setParameter("v", Constants.SENTINEL_VERSION)
             .setParameter("version", String.valueOf(System.currentTimeMillis()))
             .setParameter("hostname", HostNameUtil.getHostName())

sentinel-transport/sentinel-transport-simple-http/src/main/java/com/alibaba/csp/sentinel/transport/heartbeat/HeartbeatMessage.java

@@ -19,6 +19,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 import com.alibaba.csp.sentinel.Constants;
+import com.alibaba.csp.sentinel.config.SentinelConfig;
 import com.alibaba.csp.sentinel.transport.config.TransportConfig;
 import com.alibaba.csp.sentinel.util.AppNameUtil;
 import com.alibaba.csp.sentinel.util.HostNameUtil;
@@ -38,6 +39,8 @@ public class HeartbeatMessage {
         message.put("hostname", HostNameUtil.getHostName());
         message.put("ip", TransportConfig.getHeartbeatClientIp());
         message.put("app", AppNameUtil.getAppName());
+        // Put application type (since 1.6.0).
+        message.put("app_type", String.valueOf(SentinelConfig.getAppType()));
         message.put("port", String.valueOf(TransportConfig.getPort()));
     }