Log message from script in modeler

Hi Team,

I want to log message to catalina.out from the script section of connector.

Below is the modeler snapshot. Highlighted section is where i want to add log message. Could you please help me how to achieve this?

Hi,
you can use one of these:

println(“Normal print output”)

var logger = java.util.logging.Logger;
var log = logger.getLogger(“MY_JS_LOGGER”);
log.info(“I’m logging”);

var system = java.lang.System; system.out.println(“System out println”);

Every one has different output, so try them and you will see what will suits you best.
Cheers,
Lukas

2 Likes

thanks. just to confirm if 2nd option spits onto Catalina.out

Hi,
all three options will log into catalina.
Cheers,
Lukas

org.camunda.bpm.engine.ScriptEvaluationException: Unable to evaluate script: :4:27 Expected an operand but found error
var log = logger.getLogger(“Payement System”);
^ in at line number 4 at column number 27
at org.camunda.bpm.engine.impl.scripting.SourceExecutableScript.evaluateScript(SourceExecutableScript.java:119)
at org.camunda.bpm.engine.impl.scripting.SourceExecutableScript.evaluate(SourceExecutableScript.java:60)
at org.camunda.bpm.engine.impl.scripting.ExecutableScript.execute(ExecutableScript.java:56)
at org.camunda.bpm.engine.impl.scripting.env.ScriptingEnvironment.execute(ScriptingEnvironment.java:97)
at org.camunda.bpm.engine.impl.scripting.env.ScriptingEnvironment.execute(ScriptingEnvironment.java:83)
at org.camunda.bpm.engine.impl.delegate.ScriptInvocation.invoke(ScriptInvocation.java:40)
at org.camunda.bpm.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:54)
at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocationInContext(DefaultDelegateInterceptor.java:87)
at org.camunda.bpm.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:59)
at org.camunda.bpm.engine.impl.bpmn.behavior.ScriptTaskActivityBehavior$1.call(ScriptTaskActivityBehavior.java:51)
at org.camunda.bpm.engine.impl.bpmn.behavior.ScriptTaskActivityBehavior$1.call(ScriptTaskActivityBehavior.java:47)
at org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.executeWithErrorPropagation(AbstractBpmnActivityBehavior.java:108)
at org.camunda.bpm.engine.impl.bpmn.behavior.ScriptTaskActivityBehavior.performExecution(ScriptTaskActivityBehavior.java:47)
at org.camunda.bpm.engine.impl.bpmn.behavior.TaskActivityBehavior.execute(TaskActivityBehavior.java:65)
at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute$2.callback(PvmAtomicOperationActivityExecute.java:57)
at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute$2.callback(PvmAtomicOperationActivityExecute.java:46)
at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl.continueIfExecutionDoesNotAffectNextOperation(PvmExecutionImpl.java:1936)
at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:38)
at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationActivityExecute.execute(PvmAtomicOperationActivityExecute.java:27)
at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:89)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.invokeNext(CommandInvocationContext.java:125)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performNext(CommandInvocationContext.java:104)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performOperation(CommandInvocationContext.java:79)
at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:611)
at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:587)
at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl$5.callback(PvmExecutionImpl.java:1875)
at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl$5.callback(PvmExecutionImpl.java:1872)
at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl.continueExecutionIfNotCanceled(PvmExecutionImpl.java:1942)
at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl.dispatchDelayedEventsAndPerformOperation(PvmExecutionImpl.java:1891)
at org.camunda.bpm.engine.impl.pvm.runtime.PvmExecutionImpl.dispatchDelayedEventsAndPerformOperation(PvmExecutionImpl.java:1872)
at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:57)
at org.camunda.bpm.engine.impl.pvm.runtime.operation.PvmAtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(PvmAtomicOperationTransitionNotifyListenerStart.java:27)
at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:65)
at org.camunda.bpm.engine.impl.interceptor.AtomicOperationInvocation.execute(AtomicOperationInvocation.java:89)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.invokeNext(CommandInvocationContext.java:125)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performNext(CommandInvocationContext.java:104)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performOperation(CommandInvocationContext.java:79)
at org.camunda.bpm.engine.impl.interceptor.CommandInvocationContext.performOperation(CommandInvocationContext.java:69)
at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:622)
at org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:597)
at org.camunda.bpm.engine.impl.core.operation.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:58)

@aqaadi Did you able to fix this ? I am facing similar issue and error message is similar.

Hi,
there are two issues:

  1. the “logger” version is not currently running (or I am not able to run it)
  2. the third way of logging in my previous post, has wrong quotation marks.
    Try this and you would be ok :slight_smile:

java.lang.System.out.println(‘System out println’);

Hope this helps.
Cheers,
Lukas

1 Like

In Camunda 7.12 use this instead: (example complete payload inline script for use with http-connector)

var LoggerFactory = Java.type('org.slf4j.LoggerFactory');
var logger = LoggerFactory.getLogger('com.soluvas.chat.PostMessage');

logger.info("Sending to #" + execution.getVariable("channel") + ": " + execution.getVariable("text"));
var data = {
  "channel": execution.getVariable("channel"),
  "text": execution.getVariable("text"),
};

JSON.stringify(data);

Hi,
I have executed a sample process for you and tried to log a variable using inline script task.Attached the process for your reference.You will find the logged statement in Catalina.log

LogProcess.bpmn (2.5 KB)

Kindly let me know if this helps your purpose.