plugins/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/controllers/DistTreeContentProvider.java

   1 package org.argeo.slc.client.ui.dist.controllers;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import javax.jcr.Node;
   7 import javax.jcr.NodeIterator;
   8 import javax.jcr.Property;
   9 import javax.jcr.Repository;
  10 import javax.jcr.RepositoryException;
  11 import javax.jcr.RepositoryFactory;
  12 import javax.jcr.Session;
  13 import javax.jcr.nodetype.NodeType;
  14
  15 import org.argeo.eclipse.ui.TreeParent;
  16 import org.argeo.jcr.ArgeoJcrUtils;
  17 import org.argeo.jcr.ArgeoNames;
  18 import org.argeo.jcr.ArgeoTypes;
  19 import org.argeo.jcr.JcrUtils;
  20 import org.argeo.jcr.UserJcrUtils;
  21 import org.argeo.slc.SlcException;
  22 import org.argeo.slc.client.ui.dist.model.RepoElem;
  23 import org.argeo.slc.repo.RepoConstants;
  24 import org.argeo.util.security.Keyring;
  25 import org.eclipse.jface.viewers.ITreeContentProvider;
  26 import org.eclipse.jface.viewers.Viewer;
  27
  28 /**
  29  * Enables browsing in local and remote SLC software repositories. Keyring and
  30  * repository factory must be injected
  31  */
  32 public class DistTreeContentProvider implements ITreeContentProvider {
  33         private Session nodeSession;
  34         List<RepoElem> repositories = new ArrayList<RepoElem>();
  35
  36         /* DEPENDENCY INJECTION */
  37         private RepositoryFactory repositoryFactory;
  38         private Keyring keyring;
  39
  40         public Object[] getElements(Object input) {
  41                 Repository nodeRepository = (Repository) input;
  42                 try {
  43                         if (nodeSession != null)
  44                                 dispose();
  45                         nodeSession = nodeRepository.login();
  46
  47                         String reposPath = UserJcrUtils.getUserHome(nodeSession).getPath()
  48                                         + RepoConstants.REPOSITORIES_BASE_PATH;
  49
  50                         if (!nodeSession.itemExists(reposPath))
  51                                 initializeModel(nodeSession);
  52
  53                         NodeIterator repos = nodeSession.getNode(reposPath).getNodes();
  54                         while (repos.hasNext()) {
  55                                 Node repoNode = repos.nextNode();
  56                                 if (repoNode.isNodeType(ArgeoTypes.ARGEO_REMOTE_REPOSITORY)) {
  57                                         String label = repoNode.isNodeType(NodeType.MIX_TITLE) ? repoNode
  58                                                         .getProperty(Property.JCR_TITLE).getString()
  59                                                         : repoNode.getName();
  60                                         repositories.add(new RepoElem(repositoryFactory, keyring,
  61                                                         repoNode, label));
  62                                 }
  63                         }
  64                 } catch (RepositoryException e) {
  65                         throw new SlcException("Cannot get base elements", e);
  66                 }
  67                 return repositories.toArray();
  68         }
  69
  70         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  71         }
  72
  73         // @Override
  74         public Object[] getChildren(Object parentElement) {
  75                 if (parentElement instanceof TreeParent)
  76                         return ((TreeParent) parentElement).getChildren();
  77                 else
  78                         return null;
  79         }
  80
  81         // @Override
  82         public Object getParent(Object element) {
  83                 if (element instanceof TreeParent)
  84                         return ((TreeParent) element).getParent();
  85                 return null;
  86         }
  87
  88         // @Override
  89         public boolean hasChildren(Object element) {
  90                 if (element instanceof TreeParent)
  91                         return ((TreeParent) element).hasChildren();
  92                 else
  93                         return false;
  94         }
  95
  96         public void dispose() {
  97                 for (RepoElem repoElem : repositories)
  98                         repoElem.dispose();
  99                 repositories = new ArrayList<RepoElem>();
 100                 JcrUtils.logoutQuietly(nodeSession);
 101         }
 102
 103         private void initializeModel(Session nodeSession) {
 104                 try {
 105
 106                         Node homeNode = UserJcrUtils.getUserHome(nodeSession);
 107                         if (homeNode == null) // anonymous
 108                                 throw new SlcException("User must be authenticated.");
 109
 110                         // make sure base directory is available
 111                         Node repos = JcrUtils.mkdirs(nodeSession, homeNode.getPath()
 112                                         + RepoConstants.REPOSITORIES_BASE_PATH);
 113                         nodeSession.save();
 114
 115                         // register default local java repository
 116                         String alias = RepoConstants.DEFAULT_JAVA_REPOSITORY_ALIAS;
 117                         Repository javaRepository = ArgeoJcrUtils.getRepositoryByAlias(
 118                                         repositoryFactory, alias);
 119                         if (javaRepository != null) {
 120                                 if (!repos.hasNode(alias)) {
 121                                         Node repoNode = repos.addNode(alias,
 122                                                         ArgeoTypes.ARGEO_REMOTE_REPOSITORY);
 123                                         repoNode.setProperty(ArgeoNames.ARGEO_URI, "vm:///" + alias);
 124                                         repoNode.addMixin(NodeType.MIX_TITLE);
 125                                         repoNode.setProperty(Property.JCR_TITLE,
 126                                                         RepoConstants.DEFAULT_JAVA_REPOSITORY_LABEL);
 127                                         nodeSession.save();
 128                                 }
 129                         }
 130                 } catch (RepositoryException e) {
 131                         throw new SlcException("Cannot initialize model", e);
 132                 }
 133         }
 134
 135         /* DEPENDENCY INJECTION */
 136         public void setRepositoryFactory(RepositoryFactory repositoryFactory) {
 137                 this.repositoryFactory = repositoryFactory;
 138         }
 139
 140         public void setKeyring(Keyring keyring) {
 141                 this.keyring = keyring;
 142         }
 143 }