org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/PrivilegedJob.java

   1 package org.argeo.slc.client.ui.dist;
   2
   3 import java.security.AccessController;
   4 import java.security.PrivilegedAction;
   5
   6 import javax.security.auth.Subject;
   7
   8 import org.eclipse.core.runtime.IProgressMonitor;
   9 import org.eclipse.core.runtime.IStatus;
  10 import org.eclipse.core.runtime.jobs.Job;
  11 import org.springframework.security.authentication.Authentication;
  12 import org.springframework.security.core.context.SecurityContextHolder;
  13
  14 /**
  15  * Propagate authentication to an eclipse job. Typically to execute a privileged
  16  * action outside the UI thread
  17  */
  18 public abstract class PrivilegedJob extends Job {
  19
  20         private final Authentication authentication;
  21         private Subject subject;
  22
  23         public PrivilegedJob(String jobName) {
  24                 super(jobName);
  25                 authentication = SecurityContextHolder.getContext().getAuthentication();
  26                 subject = Subject.getSubject(AccessController.getContext());
  27         }
  28
  29         @Override
  30         protected IStatus run(final IProgressMonitor progressMonitor) {
  31                 PrivilegedAction<IStatus> privilegedAction = new PrivilegedAction<IStatus>() {
  32                         public IStatus run() {
  33                                 SecurityContextHolder.getContext().setAuthentication(
  34                                                 authentication);
  35                                 return doRun(progressMonitor);
  36                         }
  37                 };
  38                 return Subject.doAs(subject, privilegedAction);
  39         }
  40
  41         /** Implement here what should be executed with default context authentication*/
  42         protected abstract IStatus doRun(IProgressMonitor progressMonitor);
  43 }