I'm trying to take a very simple map of objects and produce a list of objects like so. I have this working, but surely there must be a better way with Groovy?
private def createConfigJson(Map configMap) {
def jsonBuilder = new StringBuilder().append("{\n")
configMap.each { key, value ->
jsonBuilder.append(" \"$key\": \"$value\",\n")
}
// Delete last ',' instead of the newline
jsonBuilder.deleteCharAt(jsonBuilder.length() - 2)
jsonBuilder.append("}")
}
createConfigJson([test: 'test', test2: 'test2'])
will produce:
{
"test": "test",
"test2": "test2"
}
to serialize map to json object (string)
you can use
http://docs.groovy-lang.org/latest/html/gapi/groovy/json/JsonBuilder.html
import groovy.json.JsonBuilder
new JsonBuilder([test: 'test', test2: 'test2']).toPrettyString()
or
http://docs.groovy-lang.org/latest/html/gapi/groovy/json/JsonOutput.html
import groovy.json.JsonOutput
JsonOutput.prettyPrint(JsonOutput.toJson([test: 'test', test2: 'test2']))
Related
I posted this question in the Groovy mailing lists, but I've not yet gotten an answer. I was wondering if someone can help here. I am re-posting relevant text from my original question.
I have an input json that’s nested, that is read via a JsonSlurper, and some of the keys have hyphens in them. I need to replace those keys that have hyphens with underscores and convert it back to json for downstream processing. I looked at the JsonGenerator.Options documentation and I could not find any documentation for this specific requirement.
I also looked through options to iterate through the Map that is produced from JsonSlurper, but unfortunately I’m not able to find an effective solution that iterates through a nested Map, changes the keys and produces another Map which could be converted to a Json string.
Example Code
import groovy.json.*
// This json can be nested many levels deep
def inputJson = """{
"database-servers": {
"dc-1": [
"server1",
"server2"
]
},
"discovery-servers": {
"dc-3": [
"discovery-server1",
"discovery-server2"
]
}
}
"""
I need to convert the above to json that looks like the example below. I can iterate through and convert using the collectEntries method which only works on the first level, but I need to do it recursively, since the input json can be an nested many levels deep.
{
"database_servers": {
"dc_1": [
"server1",
"server2"
]
},
"discovery_servers": {
"dc_3": [
"discovery-server1",
"discovery-server2"
]
}
}
Seems like you just need a recursive method to process the slurped Map and its sub-Maps.
import groovy.json.JsonSlurper
JsonSlurper slurper = new JsonSlurper()
def jsonmap = slurper.parseText( inputJson )
Map recurseMap( def inputMap ) {
return inputMap.collectEntries { key, val ->
String newkey = key.replace( "-", "_" )
if ( val instanceof Map ) {
return [ newkey, recurseMap( val ) ]
}
return [ newkey, val ]
}
}
def retmap = recurseMap( jsonmap )
println retmap // at this point you can use output this however you like
I am testing RESTful webservice using SoapUI. We use Groovy for that.
I am using jsonslurper to parse the response as Object type.
Our reponse is similar to this:
{
"language":[
{
"result":"PASS",
"name":"ENGLISH",
"fromAndToDate":null
},
{
"result":"FAIL",
"name":"MATHS",
"fromAndToDate": {
"from":"02/09/2016",
"end":"02/09/2016"
}
},
{
"result":"PASS",
"name":"PHYSICS",
"fromAndToDate":null
}
]
}
After this, I stuck up on how to.
Get Array (because this is array (starts with -language)
How to get value from this each array cell by passing the key (I should get the value of result key, if name='MATHS' only.)
I could do it using Java, but as just now learning Groovy I could not understand this. We have different keys with same names.
You can just parse it in to a map, then use standard groovy functions:
def response = '''{
"language":[
{"result":"PASS","name":"ENGLISH","fromAndToDate":null},
{"result":"FAIL","name":"MATHS","fromAndToDate":{"from":"02/09/2016","end":"02/09/2016"}},
{"result":"PASS","name":"PHYSICS","fromAndToDate":null}
]
}'''
import groovy.json.*
// Parse the Json string
def parsed = new JsonSlurper().parseText(response)
// Get the value of "languages" (the list of results)
def listOfCourses = parsed.language
// For this list of results, find the one where name equals 'MATHS'
def maths = listOfCourses.find { it.name == 'MATHS' }
How can I do this in Spock/groovy?
package org.jenkinsci.plugins
import hudson.matrix.*
import spock.lang.*
import org.junit.Rule
import org.jvnet.hudson.test.JenkinsRule
class xxxx extends Specification {
#Rule JenkinsRule rule = new JenkinsRule()
def 'matrix'() {
given:
def matrixProject = rule.createMatrixProject()
AxisList axl = new AxisList();
def axis = new TextAxis('TEST', "1", "2", "3")
axl.add(axis)
matrixProject.setAxes(axl)
expect: matrixProject.scheduleBuild2(0).get().logFile.text.contains("Some String!")
matrixProject.scheduleBuild2(0).get().getRuns().each(){
expect: it.logFile.text.contains("Another String")
}
}
}
specifically, how can I run a closure with a nested test? The "Another String" test doesn't work
Does this work?
def 'matrix'() {
given:
def matrixProject = rule.createMatrixProject()
def axis = new TextAxis('TEST', "1", "2", "3")
matrixProject.axes.add(axis)
expect:
with( matrixProject.scheduleBuild2(0).get() ) {
logFile.text.contains("Some String!")
runs.every { it.logFile.text.contains("Another String") }
}
}
}
Either use every instead of each, or use a nested assert.
I'm not sure if I understand your question well. However if by nested test you mean evaluating statement inside of each closure, why not just use assert
expect:
matrixProject.scheduleBuild2(0).get().logFile.text.contains("Some String!")
matrixProject.scheduleBuild2(0).get().getRuns().each() {
assert it.logFile.text.contains("Another String")
}
#tim_yates's approach also seems fine and it's more like Spock's way. I haven't tested it though.
EDIT
If you want be sure that all logFiles contain test string then use 'every' method as Peter suggested.
expect:
...
matrixProject.scheduleBuild2(0).get().getRuns().every {
it.text.contains('Another String')
}
Other approach, if you prefer to know how many logFiles don't contain test string on test fail count them and compare result size to zero:
expect:
...
matrixProject.scheduleBuild2(0).get().getRuns().count {
!it.text.contains('Another String')
} == 0
Yet another, if you like to know which files caused test to fail, get names of those which don't contain test string and compare that to an empty list:
expect:
...
matrixProject.scheduleBuild2(0).get().getRuns().findAll {
!it.text.contains('Another String')
}*.name == []
This is a short Groovy script:
import org.apache.commons.io.FileUtils;
def dir = new File("/mydir")
def files = FileUtils.listFiles(dir, new String[] { "java" }, false)
It says:
No expression for the array constructor call at line: 2
What's wrong?
The call should be:
def files = FileUtils.listFiles(dir, [ "java" ] as String[], false)
Groovy uses Lists by default, and the as operator can be used to coerce these lists into arrays of a specified type (often for interacting with the java api as in this example)
[edit]
As an aside, you can do this with pure Groovy like so:
def files = dir.listFiles().findAll { it.name ==~ /.*\.java/ }
Then, you don't need Commons FileUtils
I am building an ant script with groovy markupbuilder. Unfortunately markupbuilder doesn't allow me to create nodes with name 'target' (no problem with targetee),
becauase it throws me
Caught: groovy.lang.MissingMethodException: No signature of method: java.lang.String.call() is applicable for argument types: (java.util.LinkedHashMap, BuildGen$_main_closure1_closure5) values: [[name:clean], BuildGen$_main_closure1_closure5#18efaea]
Possible solutions: wait(), any(), trim(), split(), dump(), next()
so inside my markupbuilder this snippet works:
targete(name: 'clean') {
delete(dir: rootProj.compilerOutput)
}
but I would like to achieve the same with a 'target' node..
I managed to create an empty 'target' node this way:
builder.invokeMethod('target', [name: 'clean'])
but how can I go on and put more nodes inside this 'target' node?
Example of working code:
def writer = new StringWriter()
def builder = new groovy.xml.MarkupBuilder(writer)
builder.project(name: projectName, basedir:'.') {
// works with 'target2' but not with 'target'
'target2'(name: 'build-subprojects') {
rootProj.getAllDependentProjects().each { p->
echo(message: "Compiling project: ${p.projectName}")
// some real stuff
}
}
If I guess right, your problem is you want to create nodes with names that are Groovy keywords?
If so, then you can simply put the name in quotes, like so:
def writer = new StringWriter()
def builder = new groovy.xml.MarkupBuilder( writer )
builder.project {
'for'(name: 'clean') {
delete(dir: '.')
}
}
println writer
That snippet will print out:
<project>
<for name='clean'>
<delete dir='.' />
</for>
</project>
For me, this works:
def projects = [ 'pro_one', 'pro_two' ]
def writer = new StringWriter()
def builder = new groovy.xml.MarkupBuilder(writer)
builder.project( name: 'test', basedir:'.' ) {
'target'( name: 'build-subprojects' ) {
projects.each { p ->
echo( message: "Compiling project: ${p}" )
}
}
}
println writer.toString()
Have you got target set to anything in your code before calling this?
You could try:
builder.target( name: 'build-subprojects' ) {
That might work better?
I've tried Groovy 1.7.5, and 1.8 beta 2 and can't get it to fail :-/