Here's simple example for you: HamaConfiguration conf = new HamaConfiguration(); conf.setClass(name, theClass, xface);
BSPJob bsp = new BSPJob(conf, MyBSPProgram.class); On Thu, Jul 9, 2015 at 11:08 AM, Behroz Sikander <[email protected]> wrote: > *>>You can set not only String but also Object. :-)* > Well, strange because I only see String data type. *BSPJ**ob.set(String name, > String value);* > > *>>If f and g functions should be provided as a user-defined function,* > > > *Above code will be helpful. And also, you can create your ownframework > atop Hama like BSP-based vertex-centric graph computingframework.* > That is a good idea. I will try to understand the graph engine code. > > Thanks, > Behroz > > On Thu, Jul 9, 2015 at 4:00 AM, Edward J. Yoon <[email protected]> > wrote: > >> Hi, >> >> You can set not only String but also Object. :-) >> >> /** >> * Set the Vertex class for the job. >> */ >> public void setVertexClass( >> Class<? extends Vertex<? extends Writable, ? extends Writable, ? >> extends Writable>> cls) >> throws IllegalStateException { >> conf.setClass(VERTEX_CLASS_ATTR, cls, Vertex.class); >> setInputKeyClass(cls); >> setInputValueClass(NullWritable.class); >> } >> >> See also >> http://svn.apache.org/repos/asf/hama/trunk/graph/src/main/java/org/apache/hama/graph/GraphJob.java >> >> If f and g functions should be provided as a user-defined function, >> Above code will be helpful. And also, you can create your own >> framework atop Hama like BSP-based vertex-centric graph computing >> framework. >> >> Thanks! >> >> >> On Thu, Jul 9, 2015 at 10:53 AM, Behroz Sikander <[email protected]> >> wrote: >> > Hi, >> > I know about the set method of BSPJob but the problem is that it takes >> key >> > and value in *String. *In my case, I want to pass a value of type >> *IFunction >> > (which is an interface).* >> > >> > *Regards,* >> > *Behroz* >> > >> > On Thu, Jul 9, 2015 at 3:14 AM, Edward J. Yoon <[email protected]> >> > wrote: >> > >> >> Hi Behroz, >> >> >> >> You should specify the job parameters using BSPJob's get/set methods >> like >> >> below: >> >> >> >> BSPJob admm = new BSPJob(); >> >> >> >> admm.set("param1", "value"); >> >> admm.setBspClass(ExchangeADMMSolver.class); >> >> >> >> Then, >> >> >> >> public class ExchangeADMMSolver extends BSP { >> >> >> >> String param1; >> >> >> >> @Override >> >> public void setup(BSPPeer peer) { >> >> this.param1 = peer.getConfiguration().get("param1"); >> >> } >> >> >> >> } >> >> >> >> Thanks. >> >> >> >> -- >> >> Best Regards, Edward J. Yoon >> >> >> >> -----Original Message----- >> >> From: Behroz Sikander [mailto:[email protected]] >> >> Sent: Thursday, July 09, 2015 9:02 AM >> >> To: [email protected] >> >> Subject: BSPClass with parameters >> >> >> >> Hi, >> >> I was recently working on something and need your suggestion. I am >> building >> >> a small framework on top of Hama. Using my framework, users will submit >> a >> >> job to my framework and my framework will internally run the Hama job. >> Here >> >> is a sample code of what user might submit to my framework. >> >> >> >> //Extra Hama related Params here like JobName, output Path etc >> >> IFunction f = new MasterFunction(<inputPath>, <extra params>); >> >> IFunction g = new SlaveFunction(<inputPath>, <extra params>); >> >> ExchangeADMMSolver admm = new ExchangeADMMSolver(f, g); //Problem here >> >> admm.solve(); >> >> >> >> Here ExchangeADMMSolver will be a BSP class (this is what I am hoping to >> >> acheive) and *"solve" *method will internally create a HamaJob and will >> >> submit it to Hama. >> >> >> >> I am a little confused here that how will I pass all the parameters to >> the >> >> BSP class (e.g f,g) ? because in Hama if I want to set the bsp class I >> do >> >> the following >> >> >> >> HamaJob. setBspClass(ExchangeADMMSolver.class); >> >> >> >> So, Instead of this I am looking for something like >> >> >> >> HamaJob.setBspObject(admm); >> >> >> >> I might need to override some Hama classes but before doing that I need >> >> some suggestions that what can be the best solution. >> >> >> >> Regards, >> >> Behroz Sikander >> >> >> >> >> >> >> >> >> >> -- >> Best Regards, Edward J. Yoon >> -- Best Regards, Edward J. Yoon
