OK, let's see if Bryan has an idea/solution about this.
Thanks guys!
MARC
El 11/12/2009, a las 14:29, Daniel Veillard escribió:
> On Fri, Dec 11, 2009 at 02:01:36PM +0100, Marc Gonzalez Mateo wrote:
>> Hi everyvody,
>> I'm developing a new API based on libvirt.
>> I'm currently stucked using getSchedulerParameters, always is returning a
>> nullpointerexception, no matter which Xen Domain I'm passing to the
>> function.
>>
>> Enclosing both the code and the error console:
>>
>>
>> public int getCPUPriority(String name) {
>> int res=-1;
>>
>> try {
>> Domain d = getDomain(name);
>> SchedParameter[] pars = d.getSchedulerParameters();
>
> Hum, it seems
>
> Domain.getSchedulerParameters()
>
> does
>
> SchedParameter[] returnValue = new SchedParameter[0];
>
> and
>
> public static SchedParameter create(virSchedParameter vParam) {
> SchedParameter returnValue = null;
> switch (vParam.type) {
> case (1):
>
> and the create method getting there gets a null pointer as the
> initialization argument, which it first dereference ...
>
> so not surprizing looking at the code, maybe Bryan has an idea of what
> is going on there, I'm a bit lost in this initialization process ...
>
> Daniel
>
>> for (SchedParameter pri : pars) {
>> if (pri.field=="weight")
>> res=Integer.parseInt(pri.getValueAsString());
>> }
>>
>> } catch (LibvirtException e) {
>> log.error(" Error: getting CPU priority of \""+name+"\"." +
>> e.getClass());
>> e.printStackTrace();
>> }
>>
>> return res;
>> }
>>
>>
>>
>> Dec 11, 2009 1:04:18 PM net.emotivecloud.virtmonitor.VirtMonitor
>> getCPUCapacity
>> SEVERE: Error: getting CPU capacity of "XenTest".
>> java.lang.NullPointerException
>> at org.libvirt.SchedParameter.create(Unknown Source)
>> at org.libvirt.Domain.getSchedulerParameters(Unknown Source)
>> at
>> net.emotivecloud.virtmonitor.VirtMonitor.getCPUCapacity(VirtMonitor.java:462)
>> at net.emotivecloud.virtmonitor.VirtMonitor.main(VirtMonitor.java:763)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>> at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:616)
>> at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:283)
>> at java.lang.Thread.run(Thread.java:636)
>>
>>
>> Any ideas?
>>
>> Thanks in advance,
>>
>>
>> Marc Gonzalez Mateo
>
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>
>
> --
> Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
> daniel@xxxxxxxxxxxx | Rpmfind RPM search engine http://rpmfind.net/
> http://veillard.com/ | virtualization library http://libvirt.org/
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