Default dimension in AX 2012 for customer or vendor X++ code

DimensionAttributeValueSetStorage valueSetStorage = new DimensionAttributeValueSetStorage();
DimensionDefault result;

int i;
DimensionAttribute dimensionAttribute;
DimensionAttributeValue dimensionAttributeValue;

// Note that "Item" is not one of the default dimension,
// but DimensionAttributeValueSetStorage will handle it gracefully
container conAttr = ["BusinessUnit","CostCenter","Department", "ItemGroup", "Project"];
container conValue = ["004", "009", "024","Services","000007"];
str dimValue;

for (i = 1; i <= conLen(conAttr); i++)
{
dimensionAttribute = dimensionAttribute::findByName(conPeek(conAttr,i));

if (dimensionAttribute.RecId == 0)
{
continue;
}

dimValue = conPeek(conValue,i);

if (dimValue != "")
{
// The last parameter is "true". A dimensionAttributeValue record will be created if not found.
dimensionAttributeValue =
dimensionAttributeValue::findByDimensionAttributeAndValue(dimensionAttribute,dimValue,false,true);

// Add the dimensionAttibuteValue to the default dimension
valueSetStorage.addItem(dimensionAttributeValue);
}
}

result = valueSetStorage.save();