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.jcr.ArgeoJcrUtils;
  16 import org.argeo.jcr.ArgeoNames;
  17 import org.argeo.jcr.ArgeoTypes;
  18 import org.argeo.jcr.JcrUtils;
  19 import org.argeo.jcr.UserJcrUtils;
  20 import org.argeo.slc.SlcException;
  21 import org.argeo.slc.client.ui.dist.model.DistParentElem;
  22 import org.argeo.slc.client.ui.dist.model.RepoElem;
  23 import org.argeo.slc.client.ui.dist.model.WorkspaceElem;
  24 import org.argeo.slc.repo.RepoConstants;
  25 import org.argeo.util.security.Keyring;
  26 import org.eclipse.jface.viewers.ITreeContentProvider;
  27 import org.eclipse.jface.viewers.Viewer;
  28
  29 /**
  30  * Enables browsing in local and remote SLC software repositories. Keyring
  31  * and repository factory must be injected
  32  */
  33 public class DistTreeContentProvider implements ITreeContentProvider {
  34         private Session nodeSession;
  35         List<RepoElem> repositories = new ArrayList<RepoElem>();
  36
  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                                         repositories.add(new RepoElem(repoNode, repositoryFactory,
  58                                                         keyring));
  59                         }
  60                 } catch (RepositoryException e) {
  61                         throw new SlcException("Cannot get base elements", e);
  62                 }
  63                 return repositories.toArray();
  64         }
  65
  66         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  67         }
  68
  69         public Object[] getChildren(Object parentElement) {
  70                 if (parentElement instanceof DistParentElem) {
  71                         return ((DistParentElem) parentElement).getChildren();
  72                 } else if (parentElement instanceof WorkspaceElem) {
  73                         return ((WorkspaceElem) parentElement).getChildren();
  74                 }
  75                 return null;
  76         }
  77
  78         public Object getParent(Object element) {
  79                 // TODO register repo elem in distribution elem?
  80                 return null;
  81         }
  82
  83         public boolean hasChildren(Object element) {
  84                 if (element instanceof WorkspaceElem)
  85                         return false;
  86                 else if (element instanceof DistParentElem)
  87                         return true;
  88                 else
  89                         return false;
  90         }
  91
  92         public void dispose() {
  93                 for (RepoElem repoElem : repositories)
  94                         repoElem.dispose();
  95                 repositories = new ArrayList<RepoElem>();
  96                 JcrUtils.logoutQuietly(nodeSession);
  97         }
  98
  99         private void initializeModel(Session nodeSession) {
 100                 try {
 101
 102                         Node homeNode = UserJcrUtils.getUserHome(nodeSession);
 103                         if (homeNode == null) // anonymous
 104                                 throw new SlcException("User must be authenticated.");
 105
 106                         // make sure base directory is available
 107                         Node repos = JcrUtils.mkdirs(nodeSession, homeNode.getPath()
 108                                         + RepoConstants.REPOSITORIES_BASE_PATH);
 109                         nodeSession.save();
 110
 111                         // register default local java repository
 112                         String alias = RepoConstants.DEFAULT_JAVA_REPOSITORY_ALIAS;
 113                         Repository javaRepository = ArgeoJcrUtils.getRepositoryByAlias(
 114                                         repositoryFactory, alias);
 115                         if (javaRepository != null) {
 116                                 if (!repos.hasNode(alias)) {
 117                                         Node repoNode = repos.addNode(alias,
 118                                                         ArgeoTypes.ARGEO_REMOTE_REPOSITORY);
 119                                         repoNode.setProperty(ArgeoNames.ARGEO_URI, "vm:///" + alias);
 120                                         repoNode.addMixin(NodeType.MIX_TITLE);
 121                                         repoNode.setProperty(Property.JCR_TITLE,
 122                                                         RepoConstants.DEFAULT_JAVA_REPOSITORY_LABEL);
 123                                         nodeSession.save();
 124                                 }
 125                         }
 126                 } catch (RepositoryException e) {
 127                         throw new SlcException("Cannot initialize model", e);
 128                 }
 129         }
 130
 131         /*
 132          * DEPENDENCY INJECTION
 133          */
 134         public void setRepositoryFactory(RepositoryFactory repositoryFactory) {
 135                 this.repositoryFactory = repositoryFactory;
 136         }
 137
 138         public void setKeyring(Keyring keyring) {
 139                 this.keyring = keyring;
 140         }
 141 }