APPINT-33503 '@' not generated with tRESTResponse after migration.

- Add migration task to set default value

main/plugins/org.talend.repository/plugin.xml

@@ -3550,6 +3550,15 @@
                name="UncheckUseExtraParameterMigrationTask"
                version="7.3.1">
        </projecttask>
+       <projecttask
+               beforeLogon="false"
+               breaks="7.3.0"
+               class="org.talend.repository.model.migration.SetDefaultValueForAttributesToElements"
+               description="Check Attributes to Elements Parameter in tRESTRequest"
+               id="org.talend.repository.model.migration.SetDefaultValueForAttributesToElements"
+               name="SetDefaultValueForAttributesToElements"
+               version="7.3.1">
+       </projecttask>
        <projecttask
                beforeLogon="false"
                breaks="7.3.0"

main/plugins/org.talend.repository/src/main/java/org/talend/repository/model/migration/SetDefaultValueForAttributesToElements.java

@@ -0,0 +1,54 @@
+package org.talend.repository.model.migration;
+
+import java.util.Arrays;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.List;
+
+import org.talend.commons.exception.ExceptionHandler;
+import org.talend.commons.exception.PersistenceException;
+import org.talend.core.language.ECodeLanguage;
+import org.talend.core.model.components.ComponentUtilities;
+import org.talend.core.model.components.ModifyComponentsAction;
+import org.talend.core.model.components.conversions.IComponentConversion;
+import org.talend.core.model.components.filters.IComponentFilter;
+import org.talend.core.model.components.filters.NameComponentFilter;
+import org.talend.core.model.migration.AbstractJobMigrationTask;
+import org.talend.core.model.properties.Item;
+import org.talend.designer.core.model.utils.emf.talendfile.ElementParameterType;
+import org.talend.designer.core.model.utils.emf.talendfile.NodeType;
+import org.talend.designer.core.model.utils.emf.talendfile.ProcessType;
+
+public class SetDefaultValueForAttributesToElements extends AbstractJobMigrationTask {
+
+    @Override
+    public Date getOrder() {
+       return new GregorianCalendar(2021, 9, 15, 16, 0, 0).getTime();
+    }
+
+
+    @Override
+    public ExecutionResult execute(Item item) {
+        ProcessType processType = getProcessType(item);
+        IComponentFilter filter = new NameComponentFilter("tRESTRequest");
+        try {
+            ModifyComponentsAction.searchAndModify(item, processType, filter,
+                    Arrays.<IComponentConversion> asList(new IComponentConversion() {
+                        @Override
+                        public void transform(NodeType node) {
+                            if (ComponentUtilities.getNodeProperty(node, "ATTRIBUTES_TO_ELEMENTS") == null) {
+                                ComponentUtilities.addNodeProperty(node, "ATTRIBUTES_TO_ELEMENTS", "CHECK");                               
+                           }
+                               ComponentUtilities.getNodeProperty(node, "ATTRIBUTES_TO_ELEMENTS").setValue("true");
+                        }
+                    }));           
+        } catch (PersistenceException e) {
+            ExceptionHandler.process(e);
+            return ExecutionResult.FAILURE;
+        }
+
+        return ExecutionResult.SUCCESS_NO_ALERT;
+
+    }
+
+}