getVirtualMachineId.js

// Retrieve the virtual machine properties
var machine = payload.get("machine");

// Check the machine's properties exist
if (machine !== null) {
    // Retrieve the values
    var attVirtualMachineId = machine.get("id");
    }

// Get the hostname generated by vRA
var currentHostname = machine.get("name");
System.log("Assigned hostname is: " + currentHostname);

// Retrieve the variables
var machineProperties = machine.get("properties");
var datacenterLocation = machineProperties.get("Vrm.DataCenter.Location");
var location;

switch(datacenterLocation) {
    case "Utrecht":
        location = "NL-UTC";
        break;
    case "Southport":
        location = "GB-SRT";
        break;
}

// Set the environment type
var environment = System.getModule("com.hobbitcloud.misc").getConfigurationElement("_HobbitCloud/vRA","Environment","attName");
switch(environment) {
    case "Development":
        environment = "D";
        break;
    case "Test":
        environment = "T";
        break;
    case "Staging":
        environment = "S";
        break;
    case "Production":
        environment = "P";
        break;
}

// Get the workload type
var workloadType = machineProperties.get("hc.workloadType");

// Create the lock to prevent concurrent execution
LockingSystem.lockAndWait(attLockId, attLockOwner);

// Get the current highest VM number
var currentNum = System.getModule("com.hobbitcloud.misc").getConfigurationElement("_HobbitCloud/vRA/Naming",workloadType,"attNumber");

// Generate the next VM number
var newNum = System.getModule("com.hobbitcloud.vra.naming").newNum(currentNum);

// Write the new number back
System.getModule("com.hobbitcloud.misc").setConfigurationElement("_HobbitCloud/vRA/Naming",workloadType,"attNumber",newNum);

// Release the lock
LockingSystem.unlock(attLockId, attLockOwner);

// Construct new hostname
var attNewHostname = location + "-" + environment + "-" + workloadType + "-" + newNum;

// Return the new hostname
System.log("The new hostname is: " + attNewHostname);