How to pass boolean parameter value in pipeline to downstream jobs

Question

I m using Jenkins v2 1 with the integrated delivery pipeline feature  https   jenkins io solutions pipeline   to orchestrate two existing builds  build and deploy    In my parameterized build I have 3 user parameters setup  which also needs to be selectable in the pipeline   The pipeline script is as follows   node        stage  build      build job   build   parameters     class   StringParameterValue   name   target   value  target     class   ListSubversionTagsParameterValue   name   release   tag  release     class   BooleanParameterValue   name   update composer   value  update composer        stage  deploy      build job   deploy   parameters     class   StringParameterValue   name   target   value  target       This works correctly except for the BooleanParameterValue  When I build the pipeline the following error is thrown   java lang ClassCastException  hudson model BooleanParameterValue value expects boolean but received class java lang String   How can I resolve this typecasting error  Or even better  is there a less cumbersome way in which I can just pass ALL the pipeline parameters to the downstream job

User · Accepted Answer

Assuming  value  update composer   was the issue  try  value  Boolean valueOf update composer       is there a less cumbersome way in which I can just pass ALL the pipeline parameters to the downstream job   Not that I know of  at least not without using Jenkins API calls and disabling the Groovy sandbox

User · Answer

Jenkins  boolean  parameters are really just a shortcut for the  choice parameter  type with the choices hardcoded to the strings  true  and  false   and with a checkbox to set the string variable  But in the end  it is just that  a string variable  with nothing to do with a true boolean  That s why you need to convert the string to a boolean if you don t want to do a string comparison like    if  myBoolean     true

User · Answer

build job   downstream job name   parameters        booleanParam name   parameter name   value  false      cf  https   www jenkins io doc pipeline steps pipeline-build-step  -build- 20build 20a 20job

User · Answer

In addition to Jesse Glick answer  if you want to pass string parameter then use   build job   your-job-name        parameters            string name   passed build number param   value  String valueOf BUILD NUMBER            string name   complex param   value   prefix-    String valueOf BUILD NUMBER

User · Answer

Things are much easier nowadays  the builtin Snippet Generator supports the  build  step  I don t know since when though

User · Answer

Not sure if this answers this question  But I was looking for something else  Highly recommend see this 2 minute video  If you wanted to get into more details then see docs - Handling Parameters and this link And then if you have something like blue ocean  the choices would look something like this   You define and access your variables like this  pipeline       agent any      parameters       string defaultValue   quot TEST quot   description   What environment    name   userFlag       choice choices    TESTING    STAGING    PRODUCTION    description   Select field for target environment   name   DEPLOY ENV              stages           stage  quot foo quot                 steps                   echo  quot flag    params userFlag  quot                  echo  quot flag    params DEPLOY ENV  quot                                   Automated builds will pick up the default params  But if you do it manually then you get the option to choose  And then assign values like this

User · Answer

like Jesse Jesse Glick and abguy said you can enumerate string into Boolean type   Boolean valueOf string variable    or the opposite Boolean into string   String valueOf boolean variable    in my case I had to to downstream Boolean parameter to another job  So for this you will need the use the class BooleanParameterValue    build job   downstream job name   parameters      class   BooleanParameterValue   name   parameter name   value  false      wait  true

[jenkins] How to pass boolean parameter value in pipeline to downstream jobs?

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