org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/model/RepositoryElem.java

   1 package org.argeo.cms.ui.jcr.model;
   2
   3 import javax.jcr.Repository;
   4 import javax.jcr.RepositoryException;
   5 import javax.jcr.Session;
   6
   7 import org.argeo.api.NodeConstants;
   8 import org.argeo.eclipse.ui.EclipseUiException;
   9 import org.argeo.eclipse.ui.TreeParent;
  10 import org.argeo.jcr.JcrUtils;
  11
  12 /**
  13  * UI Tree component that wraps a JCR {@link Repository}. It also keeps a
  14  * reference to its parent Tree Ui component; typically the unique
  15  * {@link RepositoriesElem} object of the current view to enable bi-directionnal
  16  * browsing in the tree.
  17  */
  18
  19 public class RepositoryElem extends TreeParent {
  20         private String alias;
  21         protected Repository repository;
  22         private Session defaultSession = null;
  23
  24         /** Create a new repository with distinct name and alias */
  25         public RepositoryElem(String alias, Repository repository, TreeParent parent) {
  26                 super(alias);
  27                 this.repository = repository;
  28                 setParent(parent);
  29                 this.alias = alias;
  30         }
  31
  32         public void login() {
  33                 try {
  34                         defaultSession = repositoryLogin(NodeConstants.SYS_WORKSPACE);
  35                         String[] wkpNames = defaultSession.getWorkspace().getAccessibleWorkspaceNames();
  36                         for (String wkpName : wkpNames) {
  37                                 if (wkpName.equals(defaultSession.getWorkspace().getName()))
  38                                         addChild(new WorkspaceElem(this, wkpName, defaultSession));
  39                                 else
  40                                         addChild(new WorkspaceElem(this, wkpName));
  41                         }
  42                 } catch (RepositoryException e) {
  43                         throw new EclipseUiException("Cannot connect to repository " + alias, e);
  44                 }
  45         }
  46
  47         public synchronized void logout() {
  48                 for (Object child : getChildren()) {
  49                         if (child instanceof WorkspaceElem)
  50                                 ((WorkspaceElem) child).logout();
  51                 }
  52                 clearChildren();
  53                 JcrUtils.logoutQuietly(defaultSession);
  54                 defaultSession = null;
  55         }
  56
  57         /**
  58          * Actual call to the {@link Repository#login(javax.jcr.Credentials, String)}
  59          * method. To be overridden.
  60          */
  61         protected Session repositoryLogin(String workspaceName) throws RepositoryException {
  62                 return repository.login(workspaceName);
  63         }
  64
  65         public String[] getAccessibleWorkspaceNames() {
  66                 try {
  67                         return defaultSession.getWorkspace().getAccessibleWorkspaceNames();
  68                 } catch (RepositoryException e) {
  69                         throw new EclipseUiException("Cannot retrieve workspace names", e);
  70                 }
  71         }
  72
  73         public void createWorkspace(String workspaceName) {
  74                 if (!isConnected())
  75                         login();
  76                 try {
  77                         defaultSession.getWorkspace().createWorkspace(workspaceName);
  78                 } catch (RepositoryException e) {
  79                         throw new EclipseUiException("Cannot create workspace", e);
  80                 }
  81         }
  82
  83         /** returns the {@link Repository} referenced by the current UI Node */
  84         public Repository getRepository() {
  85                 return repository;
  86         }
  87
  88         public String getAlias() {
  89                 return alias;
  90         }
  91
  92         public Boolean isConnected() {
  93                 if (defaultSession != null && defaultSession.isLive())
  94                         return true;
  95                 else
  96                         return false;
  97         }
  98 }