/** Initialize ResourceBroker and all subPolicys */
public void initialize() throws InstantiationException {
Configuration c =
RuntimeEnvironment.getInstance().getConfiguration().subset(Site.CONFIGURATION_SECTION);
// check, if only one Transferpolicy should be used
TransferPolicy tp = null;
String key =
ConfigurationHelper.retrieveRelevantKey(
c,
getSite().getName(),
Constants.CONFIGURATION_SITES_ACTIVITYBROKER_TRANSFERPOLICY_CLASS);
if (key != null) {
String className = c.getString(key);
tp = ClassLoaderHelper.loadInterface(className, TransferPolicy.class);
tp.setActivityBroker(this);
tp.initialize(key.replace(".class", ""));
}
// Initialize DistributionPolicy
key =
ConfigurationHelper.retrieveRelevantKey(
c,
getSite().getName(),
Constants.CONFIGURATION_SITES_ACTIVITYBROKER_DISTRIBUTIONPOLICY_CLASS);
if (key == null) {
String msg =
"ResourceBroker entry ("
+ Site.CONFIGURATION_SECTION
+ "["
+ getSite().getName()
+ "]"
+ Constants.CONFIGURATION_SITES_ACTIVITYBROKER_DISTRIBUTIONPOLICY_CLASS
+ ") not found in configuration";
throw new InstantiationException(msg);
} // if
String className = c.getString(key);
DistributionPolicy dp = ClassLoaderHelper.loadInterface(className, DistributionPolicy.class);
dp.setActivityBroker(this);
distributionPolicy = dp;
dp.setActivityBroker(this);
if (tp == null) {
dp.initializeTransferPolicy();
} else {
dp.setTransferPolicy(tp);
}
// initialize AcceptancePolicy
key =
ConfigurationHelper.retrieveRelevantKey(
c,
getSite().getName(),
Constants.CONFIGURATION_SITES_ACTIVITYBROKER_ACCEPTANCEPOLICY_CLASS);
if (key == null) {
String msg =
"ResourceBroker entry ("
+ Site.CONFIGURATION_SECTION
+ "["
+ getSite().getName()
+ "]"
+ Constants.CONFIGURATION_SITES_ACTIVITYBROKER_ACCEPTANCEPOLICY_CLASS
+ ") not found in configuration";
throw new InstantiationException(msg);
} // if
className = c.getString(key);
AcceptancePolicy ap = ClassLoaderHelper.loadInterface(className, AcceptancePolicy.class);
ap.setActivityBroker(this);
acceptancePolicy = ap;
ap.setActivityBroker(this);
if (tp == null) {
ap.initializeTransferPolicy();
} else {
ap.setTransferPolicy(tp);
}
// initialize LocationPolicy
key =
ConfigurationHelper.retrieveRelevantKey(
c,
getSite().getName(),
Constants.CONFIGURATION_SITES_ACTIVITYBROKER_LOCATIONPOLICY_CLASS);
if (key == null) {
String msg =
"ResourceBroker entry ("
+ Site.CONFIGURATION_SECTION
+ "["
+ getSite().getName()
+ "]"
+ Constants.CONFIGURATION_SITES_ACTIVITYBROKER_LOCATIONPOLICY_CLASS
+ ") not found in configuration";
throw new InstantiationException(msg);
} // if
className = c.getString(key);
LocationPolicy lp = ClassLoaderHelper.loadInterface(className, LocationPolicy.class);
lp.setActivityBroker(this);
locationPolicy = lp;
lp.setActivityBroker(this);
lp.initialize();
// Initialize public Information here
key =
ConfigurationHelper.retrieveRelevantKey(
c,
getSite().getName(),
Constants.CONFIGURATION_SITES_ACTIVITYBROKER_PUBLIC_INFORMATION);
if (key != null) {
List<String> infos = c.getList(key);
// Fill Public Information with Standardparts
if (infos.contains("size")) {
publicInformation.put(
"size", this.getSite().getSiteInformation().getProvidedResources().size());
}
} // if
}
/**
* This method is used to make an offer of Jobs to this Broker by giving it
*
* @param ActivityDelegationSession session
*/
public void offer(ActivityDelegationSession session) throws OfferingVetoException {
// Add the offered session to the list of activeSessions, maybe for later use
getActiveSessions().add(session);
if (session.getCreator() instanceof Dispatcher) {
// Must create the jobReleaseEvent
for (Job j : session.getJoblist()) {
// if (acceptancePolicy.decideRemoteJob(j,session.getCreator())){
try {
session.accept(j);
manageNewJob(j);
/* INSTRUMENTATION: Set accounting information. Begin */
ComputeSiteInformation info = (ComputeSiteInformation) this.site.getSiteInformation();
info.preLRMSWaitingJobs++;
info.foreignJobs++;
/* INSTRUMENTATION: End */
} catch (AcceptanceVetoException e) {
// Maybe another site accepted the Job first
// or the job owner itself decides to execute the Job
} catch (SessionInvalidException e) {
// The session is to old, so it has to be removed from the list of activeSessions
// In other implementations, the acceptancePolicy could make a query to another site
// to get a new valid session for their Jobs
getActiveSessions().remove(session);
}
// } //End if acceptance policy
} // end for
return;
} // end if instance of GridactivityBroker
if (session.getCreator() instanceof ActivityBroker) {
// The session has been offered by another activityBroker and must be handled as a remote Job
List<Job> jobs = session.getJoblist();
for (Job j : jobs) {
if (acceptancePolicy.decideRemoteJob(j, session.getCreator())) {
try {
/* INSTRUMENTATION: Set accounting information. Begin */
ComputeSiteInformation info = (ComputeSiteInformation) this.site.getSiteInformation();
info.preLRMSWaitingJobs++;
info.foreignJobs++;
/* INSTRUMENTATION: End */
// Try to accept the Job
session.accept(j);
// if job is accepted it can be scheduled locally
// In this Implementation every overtaken job is directly given to the LRMS
// There is no distribution of accepted jobs to further sites, which is possible in
// principle
manageNewJob(j);
} catch (AcceptanceVetoException e) {
// Maybe another site accepted the Job first
// or the jobowner itself decides to execute the Job
} catch (SessionInvalidException e) {
// The session is to old, so it has to be removed from the list of activeSessions
// In other implementations, the acceptancePolicy could make a query to another site
// to get a new valid session for theire Jobs
getActiveSessions().remove(session);
}
}
}
} else {
if (session.getCreator() instanceof LocalSubmissionComponent) {
// Local submission of Jobs
for (Job j : session.getJoblist()) {
j.setReleasedSite(getSite());
j.getLifecycle().addEpisode(State.RELEASED);
j.getProvenance().addEpisode(getSite());
if (!acceptancePolicy.decideLocalJob(j)) {
// A local job was declined
throw new OfferingVetoException("Local Job was declined");
}
// in this Implementation use the DistributionPolicy for locally submitted
// jobs to decide, whether the Job should be executed locally or beeing delegated to other
// sites
List<ActivityBroker> activityBrokerToAsk =
locationPolicy.getOrder(getKnownActivityBroker());
boolean accepted = false;
for (ActivityBroker ab : activityBrokerToAsk) {
// Check for one Partner after another
if ((distributionPolicy.decide(j, ab))) {
// Check, if the Job is still scheduable locally or maybe taken over by a remote site
if (getListOfManagedJobs().contains(j)) {
/* INSTRUMENTATION: Set accounting information. Begin */
ComputeSiteInformation info =
(ComputeSiteInformation) this.site.getSiteInformation();
info.preLRMSWaitingJobs++;
info.localPreLRMSWaitingJobs++;
/* INSTRUMENTATION: End */
// the job is still scheduable
site.getScheduler().putNextJob(j);
accepted = true;
}
// The Job is scheduled, so the loop can be breaked
break;
} else {
try {
// The Job should be scheduled remotely
ActivityDelegationSession remoteSession =
DelegationFabric.generateActivityDelegationSession(j, this);
ab.offer(remoteSession);
} catch (OfferingVetoException e) {
e.printStackTrace();
}
}
} // end for activityBroker
// Check, if no other Broker has accepted the Job
// In this Implementation a job, that has not been taken directly is not been accepted
// may be different in other Implementations e.g. using webservices with time for
// Communication
if (!accepted && getListOfManagedJobs().contains(j)) {
/* INSTRUMENTATION: Set accounting information. Begin */
ComputeSiteInformation info = (ComputeSiteInformation) this.site.getSiteInformation();
info.preLRMSWaitingJobs++;
info.localPreLRMSWaitingJobs++;
/* INSTRUMENTATION: End */
// The job must be scheduled locally
site.getScheduler().putNextJob(j);
}
} // end for job
}
/* else
{
//Other Components must be implemented by subclass
//The two Delegationcomponents activityBroker and localSubmissionComponent are
//only the standardcase
throw new OfferingVetoException("Submission of job by this Component: " + session.getCreator().toString() + " is not implemented by activityBroker");
} //end localSubmissionComponent is creator */
}
}