ServiceNow Things to Know 16: Virtual Machine Utils (VMUtils)

[PrashantLearnIT]

 VMUtils is a class in the ServiceNow system that offers utility functions for discovering and provisioning virtual machines. This class comes in handy for system administrators and developers who work with virtual machines in their work environment.

      VMUtils provides two methods that allow administrators to convert between the Universal Unique Identifier (UUID) and Correlation ID formats.

Finding UUID using the Correlation ID

      Let's consider a scenario where a system administrator wants to find the UUID for a virtual machine using its correlation ID. In this case, the administrator can use the turnCorrelationIdToUuid(String correlationId) method. The method takes in a single parameter, correlationId, which is the correlation ID of the virtual machine. The method returns the UUID in string format, or an empty string if the conversion is invalid.

Example

gs.info(VMUtils.turnCorrelationIdToUuid('42 10 82 82 62 35 ca 68-b5 1c 1e f8 5c 0a 0d 5b'));
Output: 42108282-6235-ca68-b51c-1ef85c0a0d5b

Finding Correlation ID using UUID

      Now, let's consider a scenario where a system administrator wants to find the correlation ID for a virtual machine using its UUID. In this case, the administrator can use the turnUuidToCorrelationId(String uuid) method. The method takes in a single parameter, uuid, which is the UUID of the virtual machine. The method returns the identifier in the ServiceNow format.

Example

gs.info(VMUtils.turnUuidToCorrelationId('13eb78d0-d504-11e1-9b23-0800200c9a66'));
Output: 13 eb 78 d0 d5 04 11 e1-9b 23 08 00 20 0c 9a 66

In conclusion, VMUtils is a useful class in the ServiceNow system that provides administrators and developers with the ability to convert between the UUID and Correlation ID formats, enabling them to effectively manage virtual machines in their work environment. Whether it's finding the UUID for a virtual machine using its correlation ID or vice versa, VMUtils makes it easy and convenient for administrators to manage virtual machines in their work environment.

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