Add ability to use SimpleClientHttpFactory for RestApiCallNode.

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNode.java

@@ -71,10 +71,14 @@ public class TbRestApiCallNode implements TbNode {
     public void init(TbContext ctx, TbNodeConfiguration configuration) throws TbNodeException {
         try {
             this.config = TbNodeUtils.convert(configuration, TbRestApiCallNodeConfiguration.class);
-            this.eventLoopGroup = new NioEventLoopGroup();
-            Netty4ClientHttpRequestFactory nettyFactory = new Netty4ClientHttpRequestFactory(this.eventLoopGroup);
-            nettyFactory.setSslContext(SslContextBuilder.forClient().build());
-            httpClient = new AsyncRestTemplate(nettyFactory);
+            if (this.config.isUseSimpleClientHttpFactory()) {
+                httpClient = new AsyncRestTemplate();
+            } else {
+                this.eventLoopGroup = new NioEventLoopGroup();
+                Netty4ClientHttpRequestFactory nettyFactory = new Netty4ClientHttpRequestFactory(this.eventLoopGroup);
+                nettyFactory.setSslContext(SslContextBuilder.forClient().build());
+                httpClient = new AsyncRestTemplate(nettyFactory);
+            }
         } catch (SSLException e) {
             throw new TbNodeException(e);
         }

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNodeConfiguration.java

@@ -27,6 +27,7 @@ public class TbRestApiCallNodeConfiguration implements NodeConfiguration<TbRestA
     private String restEndpointUrlPattern;
     private String requestMethod;
     private Map<String, String> headers;
+    private boolean useSimpleClientHttpFactory;
 
     @Override
     public TbRestApiCallNodeConfiguration defaultConfiguration() {
@@ -34,6 +35,7 @@ public class TbRestApiCallNodeConfiguration implements NodeConfiguration<TbRestA
         configuration.setRestEndpointUrlPattern("http://localhost/api");
         configuration.setRequestMethod("POST");
         configuration.setHeaders(Collections.emptyMap());
+        configuration.setUseSimpleClientHttpFactory(false);
         return configuration;
     }
 }