Check alarm status node: log severity DEBUG for "Failed to parse alarm" for known runtime exceptions. The ERROR severity will fire only on unexpected exception types. This will prevent flooding the error logger

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/filter/TbCheckAlarmStatusNode.java

@@ -32,6 +32,7 @@ import org.thingsboard.server.common.data.plugin.ComponentType;
 import org.thingsboard.server.common.msg.TbMsg;
 
 import javax.annotation.Nullable;
+import java.util.Objects;
 
 @Slf4j
 @RuleNode(
@@ -57,7 +58,7 @@ public class TbCheckAlarmStatusNode implements TbNode {
     public void onMsg(TbContext ctx, TbMsg msg) throws TbNodeException {
         try {
             Alarm alarm = JacksonUtil.fromString(msg.getData(), Alarm.class);
-
+            Objects.requireNonNull(alarm, "alarm is null");
             ListenableFuture<Alarm> latest = ctx.getAlarmService().findAlarmByIdAsync(ctx.getTenantId(), alarm.getId());
 
             Futures.addCallback(latest, new FutureCallback<>() {
@@ -78,7 +79,11 @@ public class TbCheckAlarmStatusNode implements TbNode {
                 }
             }, ctx.getDbCallbackExecutor());
         } catch (Exception e) {
-            log.error("Failed to parse alarm: [{}]", msg.getData());
+            if (e instanceof IllegalArgumentException || e instanceof NullPointerException) {
+                log.debug("Failed to parse alarm: [{}] error [{}]", msg.getData(), e.getMessage());
+            } else {
+                log.error("Failed to parse alarm: [{}]", msg.getData(), e);
+            }
             throw new TbNodeException(e);
         }
     }

rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/filter/TbCheckAlarmStatusNodeTest.java

@@ -38,6 +38,7 @@ import org.thingsboard.server.common.msg.TbMsgMetaData;
 import java.util.UUID;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
@@ -158,6 +159,18 @@ class TbCheckAlarmStatusNodeTest {
         assertThat(value).isInstanceOf(TbNodeException.class).hasMessage("No such alarm found.");
     }
 
+    @Test
+    void givenUnparseableAlarm_whenOnMsg_then_Failure() {
+        String msgData = "{\"Number\":1113718,\"id\":8.1}";
+        TbMsg msg = getTbMsg(msgData);
+
+        assertThatThrownBy(() -> node.onMsg(ctx, msg))
+                .as("onMsg")
+                .isInstanceOf(TbNodeException.class)
+                .hasCauseInstanceOf(IllegalArgumentException.class)
+                .hasMessage("java.lang.IllegalArgumentException: The given string value cannot be transformed to Json object: {\"Number\":1113718,\"id\":8.1}");
+    }
+
     private TbMsg getTbMsg(String msgData) {
         return TbMsg.newMsg(TbMsgType.POST_ATTRIBUTES_REQUEST, DEVICE_ID, TbMsgMetaData.EMPTY, msgData);
     }

rule-engine/rule-engine-components/src/test/resources/logback-test.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<configuration>
+    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{ISO8601} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <logger name="org.thingsboard.rule.engine.filter.TbCheckAlarmStatusNode" level="DEBUG"/>
+
+    <root level="INFO">
+        <appender-ref ref="console"/>
+    </root>
+
+</configuration>