Grouper Users - Open Discussion List

["Hyzer, Chris" <>]

I think you need a grouper session before you find a subject... 

Also, I would take out all the exception handling...  if you want to catch an 
exception, catch Exception, unless there is something specific you are 
looking for

try this:



    GrouperSession s = GrouperSession.startRootSession();

    //generally this goes in a finally block
    GrouperSession.stopQuietly(s);
    
    s = GrouperSession.startRootSession();
    
    Subject subj = SubjectFinder.findById("GrouperSystem", false);

    //Find the root stem
    //you should always close your sessions, also, the are in a threadlocal 
if already started
    //Stem root = 
StemFinder.findRootStem(GrouperSession.start(SubjectFinder.findRootSubject()));

    Stem root = 
StemFinder.findRootStem(GrouperSession.staticGrouperSession());
    
    //Create top level stem, I would use the Save API
    //    Stem etc = root.addChildStem("etc", "Grouper Administration");
    
    Stem etc = new 
StemSave(s).assignName("etc").assignCreateParentStemsIfNotExist(true).save();
    
    //Create child group, again, I would use the Sae api
    //    Stem etc = root.addChildStem("etc", "Grouper Administration");
    //    Group wheel = etc.addChildGroup("wheel", "Wheel Group");

    Group wheel = new 
GroupSave(s).assignName("etc:wheel").assignCreateParentStemsIfNotExist(true).save();

    // the "All" subject is for privileges, it wont have an effect if you add 
it to a group, though
    // you just might have been doing an example...
    //  Subject all = SubjectFinder.findAllSubject();
    //  if ( !wheel.hasMember(all) ) {

    wheel.addMember(subj, false);



-----Original Message-----
From: Nakandala, Supun Chathuranga 
[mailto:]
 
Sent: Thursday, June 16, 2016 4:49 PM
To: Hyzer, Chris 
<>
Subject: Re: Using Grouper API in a maven project

The code is as follows

---------------------------------------------------------------------------------------------------------------------------------
public static void main(String[] args) {

    //Find a subject
    try {
        Subject subj = SubjectFinder.findById("GrouperSystem");
    }
    catch (SubjectNotFoundException eSNF) {
        // could not find subject
    }
    catch (SubjectNotUniqueException eSNU) {
        // could not uniquely resolve "subject id"
    }

    //Start-And-Stop a subject
    try {
        GrouperSession s = 
GrouperSession.start(SubjectFinder.findRootSubject());
        try {
            s.stop();
        }
        catch (SessionException eS) {
            // unable to stop this session
        }
    }
    catch (SessionException eS) {
        // unable to start session
    }

    //Find the root stem
    Stem root = 
StemFinder.findRootStem(GrouperSession.start(SubjectFinder.findRootSubject()));

    //Create top level stem
    try {
        Stem etc = root.addChildStem("etc", "Grouper Administration");
    }
    catch (InsufficientPrivilegeException eIP) {
        // not privileged to add this stem
    }
    catch (StemAddException eNSA) {
        // error adding this stem
    }

    //Create child group
    try {
        Stem etc = root.addChildStem("etc", "Grouper Administration");
        Group wheel = etc.addChildGroup("wheel", "Wheel Group");
    }
    catch (GroupAddException eGA) {
        // error adding this group
    }
    catch (InsufficientPrivilegeException eIP) {
        // not privileged to add this group
    }


    //Add Member To Group If Not Already A Member
    Stem etc = root.addChildStem("etc", "Grouper Administration");
    Group wheel = etc.addChildGroup("wheel", "Wheel Group");
    Subject all = SubjectFinder.findAllSubject();
    if ( !wheel.hasMember(all) ) {
        try {
            wheel.addMember(all);
        }
        catch (InsufficientPrivilegeException eIP) {
            // not privileged to add this member
        }
        catch (MemberAddException eMA) {
            // error adding this member
        }
    }
}



> On Jun 16, 2016, at 4:43 PM, Hyzer, Chris 
> <>
>  wrote:
> 
> Send the test code please
>  
> From: Nakandala, Supun Chathuranga 
> [mailto:]
>  
> Sent: Thursday, June 16, 2016 4:36 PM
> To: Hyzer, Chris 
> <>
> Subject: Re: Using Grouper API in a maven project
>  
> The complete log can be found here http://pastebin.com/raw/4rBg3TUr
>  
> No after the exception was thrown the test code stopped.
> On Jun 16, 2016, at 4:27 PM, Hyzer, Chris 
> <>
>  wrote:
>  
> Can you forward the complete stack/logs please?  Jar file mismatches (or 
> missing) and grouper version mismatches might say error but they should be 
> only non-fatal…  is there something else going on or is it started 
> successfully?  J
>  
> Thanks
> Chris
>  
> From: 
> 
>  
> [mailto:]
>  On Behalf Of Nakandala, Supun Chathuranga
> Sent: Thursday, June 16, 2016 3:54 PM
> To: 
> 
> Subject: [grouper-users] Using Grouper API in a maven project
>  
> Hi Devs, 
>  
> I trying to create a project which directly interacts with the Grouper Java 
> API. The project is a maven project and I have added the following 
> dependency.
>  
> <dependency>
>     <groupId>edu.internet2.middleware.grouper</groupId>
>     <artifactId>grouper</artifactId>
>     <version>2.3.0</version>
> </dependency>
> 
> I also copied the files inside the conf directory in the binary 
> distribution into resources directory in the project and configured the 
> correct database connections in the hibernate properties file. Also using 
> the gsh I initialized the database.
>  
> But when I tried to run simple example code provided in the API.txt 
> document I get the following error
> .
> .
> Grouper warning: cannot find class 
> com.thoughtworks.xstream.alias.CannotResolveClassException, perhaps you are 
> missing jar: xstream.jar
> Grouper error: grouper versions do not match, GrouperVersion.class: 2.3.0, 
> grouper.version.properties: null, manifest: null
> Exception in thread "main" java.lang.NullPointerException
> at 
> edu.internet2.middleware.grouper.GrouperSourceAdapter$2.callback(GrouperSourceAdapter.java:317)
> Disconnected from the target VM, address: '127.0.0.1:56978', transport: 
> 'socket'
> at 
> edu.internet2.middleware.grouper.GrouperSession.callbackGrouperSession(GrouperSession.java:974)
> at 
> edu.internet2.middleware.grouper.GrouperSourceAdapter.getSubjectsByIds(GrouperSourceAdapter.java:311)
> at 
> edu.internet2.middleware.grouper.GrouperSourceAdapter.getSubject(GrouperSourceAdapter.java:215)
> at 
> edu.internet2.middleware.grouper.subj.SourcesXmlResolver$1.callLogic(SourcesXmlResolver.java:119)
> at 
> edu.internet2.middleware.grouper.subj.SourcesXmlResolver$1.callLogic(SourcesXmlResolver.java:116)
> at 
> edu.internet2.middleware.grouper.subj.SourcesXmlResolver$LogLabelCallable.call(SourcesXmlResolver.java:169)
> at 
> edu.internet2.middleware.grouper.subj.SourcesXmlResolver.executeCallables(SourcesXmlResolver.java:230)
> at 
> edu.internet2.middleware.grouper.subj.SourcesXmlResolver.find(SourcesXmlResolver.java:125)
> at 
> edu.internet2.middleware.grouper.subj.CachingResolver.find(CachingResolver.java:125)
> at 
> edu.internet2.middleware.grouper.subj.ValidatingResolver.find(ValidatingResolver.java:91)
> at 
> edu.internet2.middleware.grouper.SubjectFinder.findById(SubjectFinder.java:431)
> at 
> edu.internet2.middleware.grouper.SubjectFinder.findById(SubjectFinder.java:405)
> at org.apache.airavata.groupmanager.Main.main(Main.java:38)
>  
> After Googling for the exception message I found this grouper email thread 
> [https://lists.internet2.edu/sympa/arc/grouper-dev/2011-10/msg00069.html] 
> which is discussing the same issue. There is an open issue for this 
> https://bugs.internet2.edu/jira/browse/GRP-673 and I tried to manually copy 
> this file into my project to overcome the issue. But I cannot find the 
> misc/version.properties file in the API binary distribution.
>  
> Where can I get this file? Or else your help on how to fix this issue is 
> highly appreciated.
>  
> Thanks
> -Supun