feat: support execution listeners

index.js

@@ -75,8 +75,10 @@ const camundaCloud85Rules = withConfig({
   'wait-for-completion': 'error'
 }, { version: '8.5' });
 
-const camundaCloud86Rules = withConfig(
-  omit(camundaCloud85Rules, 'inclusive-gateway'), { version: '8.6' });
+const camundaCloud86Rules = withConfig({
+  ...omit(camundaCloud85Rules, 'inclusive-gateway'),
+  'duplicate-execution-listeners': 'error'
+}, { version: '8.6' });
 
 const camundaPlatform719Rules = withConfig({
   'history-time-to-live': 'info'
@@ -105,6 +107,7 @@ const rules = {
   'called-element': './rules/camunda-cloud/called-element',
   'collapsed-subprocess': './rules/camunda-cloud/collapsed-subprocess',
   'connector-properties': './rules/camunda-cloud/connector-properties',
+  'duplicate-execution-listeners': './rules/camunda-cloud/duplicate-execution-listeners',
   'duplicate-task-headers': './rules/camunda-cloud/duplicate-task-headers',
   'error-reference': './rules/camunda-cloud/error-reference',
   'escalation-boundary-event-attached-to-ref': './rules/camunda-cloud/escalation-boundary-event-attached-to-ref',

package.json

@@ -34,7 +34,7 @@
     "modeler-moddle": "^0.2.0",
     "sinon": "^17.0.1",
     "sinon-chai": "^3.7.0",
-    "zeebe-bpmn-moddle": "^1.1.0"
+    "zeebe-bpmn-moddle": "^1.4.0"
   },
   "dependencies": {
     "@bpmn-io/feel-lint": "^1.2.0",

rules/camunda-cloud/duplicate-execution-listeners.js

@@ -0,0 +1,81 @@
+const {
+  ERROR_TYPES,
+  findExtensionElement
+} = require('../utils/element');
+
+const { reportErrors } = require('../utils/reporter');
+
+const { skipInNonExecutableProcess } = require('../utils/rule');
+
+module.exports = skipInNonExecutableProcess(function() {
+  function check(node, reporter) {
+    const executionListeners = findExtensionElement(node, 'zeebe:ExecutionListeners');
+
+    if (!executionListeners) {
+      return;
+    }
+
+    const errors = hasDuplicatedExecutionListeners(executionListeners, node);
+
+    if (errors && errors.length) {
+      reportErrors(node, reporter, errors);
+    }
+  }
+
+  return {
+    check
+  };
+});
+
+// helpers //////////
+function hasDuplicatedExecutionListeners(executionListeners, parentNode = null) {
+  const listeners = executionListeners.get('listeners');
+
+  // (1) find duplicates
+  const duplicates = [];
+  const events = new Map();
+  for (const listener of listeners) {
+    const eventName = listener.get('eventType'),
+          type = listener.get('type');
+
+    if (!events.has(eventName)) {
+      events.set(eventName, new Set([ type ]));
+      continue;
+    }
+
+    const types = events.get(eventName);
+    if (types.has(type)) {
+      duplicates.push(listener);
+    } else {
+      types.add(type);
+    }
+  }
+
+  // (2) report error for each duplicate
+  if (duplicates.length) {
+    return duplicates.map(duplicate => {
+      const eventName = duplicate.get('eventType'),
+            type = duplicate.get('type');
+
+      // (3) find properties with duplicate
+      const duplicateProperties = listeners.filter(listener => listener.get('eventType') === eventName && listener.get('type') === type);
+
+      // (4) report error
+      return {
+        message: `Duplicate execution listener with event type <${eventName}> and job type <${type}>`,
+        path: null,
+        data: {
+          type: ERROR_TYPES.PROPERTY_VALUE_DUPLICATED,
+          node: executionListeners,
+          parentNode: parentNode === executionListeners ? null : parentNode,
+          duplicatedProperty: 'type',
+          duplicatedPropertyValue: type,
+          properties: duplicateProperties,
+          propertiesName: 'listeners'
+        }
+      };
+    });
+  }
+
+  return [];
+}