Get values from properties file using Groovy

Question

How to get values from properties file using Groovy?

I require to have a property file (.properties) which would have file names as key, and their destination path as the value. I will need the key to be resolved at runtime, depending on file that needs to be moved.

So far I am able to load the properties it seems but can't "get" the value from the loaded properties.

I referred to the thread : groovy: How to access to properties file? and following is the code snippet i have so far

def  props = new Properties(); File propFile =            new File('D:/XX/XX_Batch/XX_BATCH_COMMON/src/main/resources/patchFiles.properties') props.load(propFile.newDataInputStream()) def config = new ConfigSlurper().parse(props)     def ant = new AntBuilder()     def list = ant.fileScanner {                 fileset(dir:getSrcPath()) {                     include(name:"**/*")                 }     }     for (f in list) {        def key = f.name        println(props)        println(config[key])        println(config)        def destn = new File(config['a'])      } 

the properties file has the following entries for now :

jan-feb-mar.jsp=/XX/Test/1 XX-1.0.0-SNAPSHOT.jar=/XX/Test/1 a=b c=d 

Correct values are returned if I look up using either props.getProperty('a') or, config['a'] Also tried the code: notation

But as soon as switch to using the variable "key", as in config[key] it returns --> [:]

I am new to groovy, can't say what am i missing here.

Answer 1

It looks to me you complicate things too much.

Here's a simple example that should do the job:

For given test.properties file:

a=1 b=2 

This code runs fine:

Properties properties = new Properties() File propertiesFile = new File('test.properties') propertiesFile.withInputStream {     properties.load(it) }  def runtimeString = 'a' assert properties."$runtimeString" == '1' assert properties.b == '2' 

Answer 2

Unless File is necessary, and if the file to be loaded is in src/main/resources or src/test/resources folder or in classpath, getResource() is another way to solve it.

eg.

    def properties = new Properties()     //both leading / and no / is fine     this.getClass().getResource( '/application.properties' ).withInputStream {         properties.load(it)     }      //then: "access the properties"     properties."my.key"