Grouper Users - Open Discussion List

[Paul Gazda <>]

Hi Chris.

Thanks for the great help on how to access web services from within a java program. Your example worked great. I am now venturing out and trying to do a GroupSave using the GrouperClient.java code as a guide. The save operation works, but if I try to save a group name that already exists and get an error message, I want to be able to determine that the error was due to the group already existing rather than some other reason. I have been unable to determine this from the error message that is returned.

 

I set saveMode = "INSERT" because I do not want to modify an existing group if it exists. If the group already exists, I get this error message:

Grouper error attempting to save group. edu.internet2.middleware.grouperClient.ws.GcWebServiceError: Bad response from web service: resultCode: PROBLEM_SAVING_GROUPS, There were 0 successes and 1 failures of saving groups.  

java.lang.RuntimeException: java.lang.RuntimeException: Must not pass in a name for an insert,

Problem in HibernateSession: HibernateSession: isNew: false, isReadonly: false, grouperTransactionType: READ_WRITE_NEW,

Problem in HibernateSession: HibernateSession: isNew: true, isReadonly: false, grouperTransactionType: READ_WRITE_NEW

 

I do not see anything in the error message that tells me the group already exists. e.getMessage() does not give me any different information.

 

Is there a way I can tell if the GroupSave failure is due to the group already existing?

 

Thanks.

Paul Gazda

 

---

From: Chris Hyzer [mailto:]
Sent: Wednesday, February 04, 2009 2:07 PM
To: Paul Gazda;
Subject: RE: Help with accessing web services

 

I think the easiest and best way to use grouper web services by code is to use the grouper client API.  Here is an example below that I tested and it works.  All the configuration is in the grouper.client.properties file, and you only need the grouperClient.jar.  Here are the classes you should be using:

 

http://middleware.internet2.edu/dir/groups/grouper/grouper/1.4.1/gc/api/edu/internet2/middleware/grouperClient/api/package-summary.html

 

Here are all the underlying beans:

http://middleware.internet2.edu/dir/groups/grouper/grouper/1.4.1/gc/api/edu/internet2/middleware/grouperClient/ws/beans/package-summary.html

 

 

Full javadoc:

http://middleware.internet2.edu/dir/groups/grouper/grouper/1.4.1/gc/api/index.html

 

Here are example grouper client calls:

http://viewvc.internet2.edu/viewvc.py/grouper-misc/grouperClient/src/java/edu/internet2/middleware/grouperClient/GrouperClient.java?root=I2MI&view=markup

 

That said, I need to put more examples on the grouper client website, if you need help doing something, let me know and I can beef up the docs.

 

Your other code either needs all the dependent jars, or to use the classes in the classpath of the grouperClient.jar.  I took in a minimal number of 3^rd party jars into the grouper client jar, and changed their classpath so nothing conflicts.  I wanted this to be very easy for non java people to use, so it is one jar and one config file, and an easy command line.  Java is not as easy to kick off with multiple jars, and less easy to upgrade etc…  there are disadvantages here (like your confusion), but I think the pros outweigh the cons.

 

Regards,

Chris

 

 

 

/*

 * @author mchyzer

 * $Id$

 */

package edu.internet2.middleware.grouperClient.poc;

 

import edu.internet2.middleware.grouperClient.api.GcFindStems;

import edu.internet2.middleware.grouperClient.ws.beans.WsFindStemsResults;

import edu.internet2.middleware.grouperClient.ws.beans.WsResultMeta;

import edu.internet2.middleware.grouperClient.ws.beans.WsStem;

import edu.internet2.middleware.grouperClient.ws.beans.WsStemQueryFilter;

 

 

/**

 *

 */

public class FindStem {

 

  /**

   * @param args

   */

  public static void main(String[] args) {

   

    GcFindStems gcFindStems = new GcFindStems();       

   

    WsStemQueryFilter wsStemQueryFilter = new WsStemQueryFilter();

    wsStemQueryFilter.setStemName("penn");

    wsStemQueryFilter.setStemQueryFilterType("FIND_BY_STEM_NAME_APPROXIMATE");

   

    gcFindStems.assignStemQueryFilter(wsStemQueryFilter);

   

    WsFindStemsResults wsFindStemsResults = gcFindStems.execute();

   

    WsResultMeta resultMetadata = wsFindStemsResults.getResultMetadata();

   

    if (!"T".equals(resultMetadata.getSuccess())) {

      throw new RuntimeException("Error finding stems: " + resultMetadata.getSuccess()

          + ", " + resultMetadata.getResultCode()

          + ", " + resultMetadata.getResultMessage());

    }

   

    WsStem[] wsStems = wsFindStemsResults.getStemResults();

   

    if (wsStems != null) {

      for (WsStem wsStem : wsStems) {

        System.out.println(wsStem.getName());

      }

    }

  }

}