Added back the permissions service

framework/default/ortoo-core/default/classes/services/permissions-service/IPermissionsService.cls

@@ -0,0 +1,4 @@
+public interface IPermissionsService
+{
+    Boolean hasAccessToCorePlatformCache();
+}

framework/default/ortoo-core/default/classes/services/permissions-service/IPermissionsService.cls-meta.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>52.0</apiVersion>
+    <status>Active</status>
+</ApexClass>

framework/default/ortoo-core/default/classes/services/permissions-service/PermissionsService.cls

@@ -0,0 +1,20 @@
+/**
+ * Provides the ability to check if the current user has particular permissions.
+ */
+public with sharing class PermissionsService {
+
+	/**
+	 * States if the user has rights to access the core platform cache
+	 *
+	 * @return	Boolean	Does the current user have the stated permission.
+	 */
+	public static Boolean hasAccessToCorePlatformCache()
+	{
+		return service().hasAccessToCorePlatformCache();
+	}
+
+    private static IPermissionsService service()
+	{
+        return (IPermissionsService)Application.SERVICE.newInstance( IPermissionsService.class );
+	}
+}

framework/default/ortoo-core/default/classes/services/permissions-service/PermissionsService.cls-meta.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>52.0</apiVersion>
+    <status>Active</status>
+</ApexClass>

framework/default/ortoo-core/default/classes/services/permissions-service/PermissionsServiceImpl.cls

@@ -0,0 +1,45 @@
+public with sharing class PermissionsServiceImpl implements IPermissionsService
+{
+	/**
+    * States if the user has the custom permission required to acces the core platform cache
+    *
+    * @return	Boolean	Does the current user have the platform cache
+    */
+	public Boolean hasAccessToCorePlatformCache()
+	{
+		Boolean hasAccessToCorePlatformCache = false;
+
+		try
+		{
+			hasAccessToCorePlatformCache = hasCustomPermission( 'ProcessesCanAccessCache' );
+		}
+		catch ( Exception e )
+		{
+			ServiceUtils.logAndRethrow( e );
+		}
+
+		return hasAccessToCorePlatformCache;
+	}
+
+	/**
+	 * States if the user has the custom permission with the given API name.
+	 *
+	 * @param	String	The API name of the custom permission to check the assignment of.
+	 * @return	Boolean	Does the current user have the stated permission.
+	 */
+	private Boolean hasCustomPermission( String customPermissionName )
+	{
+		Boolean hasCustomPermission = false;
+
+		try
+		{
+			hasCustomPermission = FeatureManagement.checkPermission( customPermissionName );
+		}
+		catch ( Exception e )
+		{
+			ServiceUtils.logAndRethrow( e );
+		}
+
+		return hasCustomPermission;
+	}
+}

framework/default/ortoo-core/default/classes/services/permissions-service/PermissionsServiceImpl.cls-meta.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>52.0</apiVersion>
+    <status>Active</status>
+</ApexClass>

framework/default/ortoo-core/default/classes/services/permissions-service/tests/PermissionsServiceImplTest.cls

@@ -0,0 +1,13 @@
+@isTest
+private with sharing class PermissionsServiceImplTest
+{
+    @isTest
+    private static void hasAccessToCorePlatformCache_doesNotThrowAnException() // NOPMD: test method format
+    {
+        PermissionsServiceImpl permissionsService = new PermissionsServiceImpl();
+
+        Boolean hasPermission = permissionsService.hasAccessToCorePlatformCache();
+
+        System.assertNotEquals( null, hasPermission, 'hasAccessToCorePlatformCache, does not throw an exception, and returns a value' );
+    }
+}

framework/default/ortoo-core/default/classes/services/permissions-service/tests/PermissionsServiceImplTest.cls-meta.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>52.0</apiVersion>
+    <status>Active</status>
+</ApexClass>