plugins/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/model/GroupElem.java

   1 package org.argeo.slc.client.ui.dist.model;
   2
   3 import java.security.AccessControlException;
   4 import java.util.ArrayList;
   5 import java.util.List;
   6
   7 import javax.jcr.Repository;
   8 import javax.jcr.RepositoryException;
   9 import javax.jcr.Session;
  10
  11 import org.argeo.jcr.JcrUtils;
  12 import org.argeo.slc.SlcException;
  13
  14 /**
  15  * Abstracts a group of distribution, that is a bunch of workspaces with same
  16  * prefix.
  17  */
  18 public class GroupElem extends DistParentElem {
  19         private RepoElem repoElem;
  20         private String name;
  21
  22         public GroupElem(RepoElem repoElem, String prefix) {
  23                 super(repoElem.inHome(), repoElem.isReadOnly());
  24                 this.repoElem = repoElem;
  25                 this.name = prefix;
  26         }
  27
  28         public Object[] getChildren() {
  29                 Session session = null;
  30                 try {
  31                         Repository repository = repoElem.getRepository();
  32                         session = repository.login(repoElem.getCredentials());
  33
  34                         String[] workspaceNames = session.getWorkspace()
  35                                         .getAccessibleWorkspaceNames();
  36                         List<WorkspaceElem> distributionElems = new ArrayList<WorkspaceElem>();
  37                         buildWksp: for (String workspaceName : workspaceNames) {
  38
  39                                 // Filter non-public workspaces for user anonymous.
  40                                 if (repoElem.getRepoNode() == null) {
  41                                         Session tmpSession = null;
  42                                         try {
  43                                                 tmpSession = repository.login(workspaceName);
  44                                                 Boolean res = true;
  45                                                 try {
  46                                                         tmpSession.checkPermission("/", "read");
  47                                                 } catch (AccessControlException e) {
  48                                                         res = false;
  49                                                 }
  50                                                 if (!res)
  51                                                         continue buildWksp;
  52                                         } catch (RepositoryException e) {
  53                                                 throw new SlcException(
  54                                                                 "Cannot list workspaces for anonymous user", e);
  55                                         } finally {
  56                                                 JcrUtils.logoutQuietly(tmpSession);
  57                                         }
  58                                 }
  59
  60                                 // filter technical workspaces
  61                                 if (workspaceName.startsWith(name)) {
  62                                         distributionElems.add(new WorkspaceElem(repoElem,
  63                                                         workspaceName));
  64                                 }
  65                         }
  66                         return distributionElems.toArray();
  67                 } catch (RepositoryException e) {
  68                         throw new SlcException("Cannot list workspaces for prefix " + name,
  69                                         e);
  70                 } finally {
  71                         JcrUtils.logoutQuietly(session);
  72                 }
  73         }
  74
  75         public String getLabel() {
  76                 return name;
  77         }
  78
  79         public String toString() {
  80                 return getLabel();
  81         }
  82
  83         public void dispose() {
  84         }
  85
  86         public RepoElem getRepoElem() {
  87                 return repoElem;
  88         }
  89
  90 }