CODEWITHSUNDEEP
parsinggroovyconfiguration-files
WILLIAM WOODMAN
WILLIAM WOODMAN

Reputation: 1231

can't get Groovy ConfigSlurper to parse a String and find result as property

I'm having a really simple problem getting ConfigSlurper to process my config

Groovy version 2.5.6

Went back to basics and tried this simple Groovy script:

ConfigSlurper slurper = new ConfigSlurper ()    
slurper.parse ("""host='localhost' """)

println slurper.getProperty('host')

/* gives exception :
Caught: groovy.lang.MissingPropertyException: No such property: host for class: groovy.util.ConfigSlurper
groovy.lang.MissingPropertyException: No such property: host for class: groovy.util.ConfigSlurper
    at scripts.testSSlurper.run(testSSlurper.groovy:7)
 */

Why doesn't this simple parse fail?

What am I doing wrong here? This is a blocker for the real code I've written parsing a file - which also seems to bind nothing into slurper.

Upvotes: 1

Views: 1018

Answers (1)

Szymon Stepniak
Szymon Stepniak

Reputation: 42214

There is one misunderstanding in your code sample. Parsing a config script does not mutate the ConfigSlurper object, but it returns a ConfigObject instead. All you have to do is to capture the result of slurper.parse(script) method and access host key from the returned ConfigObject instance.

ConfigSlurper slurper = new ConfigSlurper()

def config = slurper.parse(""" host = 'localhost' """)

println config.getProperty("host")

The output:

localhost

Upvotes: 4

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