Question about Koji hub

[Kiu Leung]

Hi all,

My name is Ken Leung, one of the Eclipse team new interns from the Red Hat Toronto office
working on a Mylyn Builds Koji connector project.  So I will be relying heavily on
Apache's Java XmlRpc API as well as the Koji hub web service.

Right now, I am running into a problem with how to query Koji builds by a user_id or
task_id.  According to the signature of the web method:

listBuilds(packageID=None, userID=None, taskID=None, prefix=None, state=None,
createdBefore=None, createdAfter=None, completeBefore=None, completeAfter=None, type=None,
typeInfo=None, queryOpts=None)

The web method takes multiple parameter lists and can have default parameter values -
which are not native to the Java language.

I tried the following to query builds of user ID 2, who has about 360 builds pushed to the
target :

ArrayList<Object> params = new ArrayList<Object>();
params.add(new ArrayList<Integer>().add(null));
params.add(2);
xmlrpcClient.execute("listBuilds", params);//the Xml Rpc client was referenced
by xmlrpcClient

While I expected a list of 360 hash maps (360 builds), I only received 1 hash map with a
package_id of 1.  I also tried to pass other user_ids which are known to have builds
pushed to the target Koji instance, but the web service returned nothing.

I also tried to query Koji by task_id # 8 with the following code:

ArrayList<Object> params = new ArrayList<Object>();
params.add(new ArrayList<Integer>().add(null));
params.add(new ArrayList<Integer>().add(null));
params.add(8);
xmlrpcClient.execute("listBuilds", params);//the Xml Rpc client was referenced
by xmlrpcClient

But unfortunately, the web service also returned nothing while there are more than 3000
tasks pushed onto the server.

So I would be most grateful for your advice on how to form the parameter list properly
with Apache XmlRpc.  Thank you very much!

Best regards,

Ken Leung

[Mike McLean]

On 07/20/2011 04:14 PM, Kiu Leung wrote:
>  Right now, I am running into a problem with how to query Koji builds
>  by a user_id or task_id.  According to the signature of the web
>  method:
>
>  listBuilds(packageID=None, userID=None, taskID=None, prefix=None,
>  state=None, createdBefore=None, createdAfter=None,
>  completeBefore=None, completeAfter=None, type=None, typeInfo=None,
>  queryOpts=None)
>
>  The web method takes multiple parameter lists and can have default
>  parameter values - which are not native to the Java language. 
Koji encodes named parameters by appending an extra dictionary arg 
containing a key/value pair of "__starstar"/True. Koji's ClientSession 
class handles this for you, but it should be pretty easy to implement in 
other languages.

Of course, you can always pass args by order as you have here. I don't 
use Java much, so I'm not sure why it isn't working for you. However, I 
do wonder about your use of: new ArrayList<Integer>().add(null). I would 
have expected simply null.

Python's xmlrpclib supports a verbose option that outputs the raw xmlrpc 
data for each call. If the Java lib has a similar feature, it might be 
helpful to look at that.

Short of that, if you have access to the hub, you could crank up 
debugging[1] and see what args the hub is actually receiving.

[1] e.g. in hub.conf: LogLevel = xmlrpc:DEBUG

>  I tried the following to query builds of user ID 2, who has about
> 360
>  builds pushed to the target :
>
>  ArrayList<Object>  params = new ArrayList<Object>(); params.add(new
>  ArrayList<Integer>().add(null)); params.add(2);
>  xmlrpcClient.execute("listBuilds", params);//the Xml Rpc client was
>  referenced by xmlrpcClient
>
>  While I expected a list of 360 hash maps (360 builds), I only
>  received 1 hash map with a package_id of 1.  I also tried to pass
>  other user_ids which are known to have builds pushed to the target
>  Koji instance, but the web service returned nothing.