WFA function to extract portions of a fqdn

[skellner]

I try to create a function to extract a portion of a fqdn. When I try it like this I get an error and don't know why. Maybe someone can help me with this.

def extractPrefixArrayName(array_name,region)

{

String hostname = splitByDelimiter(array_name,'\\.',0);

return hostname.Substring(0,1)+hostname.Substring(6,5)+region;

}

When I test it with extractPrefixArrayName("g100bpmc002.g100.intern","d") I get the following error

[Error: failed to access property: extractPrefixArrayName("g100bpmc002.g100.intern","d"): [Error: unable to resolve method: java.lang.String.Substring(java.lang.Integer, java.lang.Integer) [arglength=2]]

[Near : {... Unknown ....}]

^

[Line: 1, Column: 0]]

[Near : {... "g100bpmc002.g100.intern","d" ....}]

^

[Line: 1, Column: 0]

[dekel · Accepted solution]

Hi,

There are two issues with this function

1) You need to use substring and not Substring   -Java is case sensitive

2) you need to do hostname.substring(5,6) and not hostname.substring(6,5) - Otherwise you will get index of bound

The result of the below function will be

Input :extractPrefixArrayName("g100bpmc002.g100.intern","d")

Output :gpd

def extractPrefixArrayName(array_name,region)

{

String hostname = splitByDelimiter(array_name,'\\.',0);

return hostname.substring(0,1)+hostname.substring(5,6)+region;

}

Note that in your function all positions are hard coded (0,1 and 5,6) ,you assume all host names length are the same -not sure if this is indeed true

Hope it helps

[skellner]

Hi,

thanks for your help. My fault was not to recognize that this is Java. So this is good to know.

Best regards

Stefan