plugins/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/editors/ArtifactsBrowserPage.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.client.ui.dist.editors;
  17
  18 import java.util.ArrayList;
  19 import java.util.List;
  20
  21 import javax.jcr.Node;
  22 import javax.jcr.NodeIterator;
  23 import javax.jcr.RepositoryException;
  24 import javax.jcr.Session;
  25 import javax.jcr.query.QueryManager;
  26 import javax.jcr.query.QueryResult;
  27 import javax.jcr.query.qom.Ordering;
  28 import javax.jcr.query.qom.QueryObjectModel;
  29 import javax.jcr.query.qom.QueryObjectModelFactory;
  30 import javax.jcr.query.qom.Selector;
  31
  32 import org.argeo.ArgeoException;
  33 import org.argeo.jcr.JcrUtils;
  34 import org.argeo.slc.SlcException;
  35 import org.argeo.slc.client.ui.dist.DistConstants;
  36 import org.argeo.slc.client.ui.dist.DistImages;
  37 import org.argeo.slc.client.ui.dist.DistPlugin;
  38 import org.argeo.slc.jcr.SlcNames;
  39 import org.argeo.slc.jcr.SlcTypes;
  40 import org.argeo.slc.repo.RepoConstants;
  41 import org.eclipse.jface.viewers.ColumnLabelProvider;
  42 import org.eclipse.jface.viewers.DoubleClickEvent;
  43 import org.eclipse.jface.viewers.IDoubleClickListener;
  44 import org.eclipse.jface.viewers.IStructuredSelection;
  45 import org.eclipse.jface.viewers.ITreeContentProvider;
  46 import org.eclipse.jface.viewers.TreeViewer;
  47 import org.eclipse.jface.viewers.Viewer;
  48 import org.eclipse.swt.SWT;
  49 import org.eclipse.swt.graphics.Image;
  50 import org.eclipse.swt.layout.FillLayout;
  51 import org.eclipse.swt.widgets.Composite;
  52 import org.eclipse.swt.widgets.Tree;
  53 import org.eclipse.swt.widgets.TreeColumn;
  54 import org.eclipse.ui.PartInitException;
  55 import org.eclipse.ui.forms.IManagedForm;
  56 import org.eclipse.ui.forms.editor.FormEditor;
  57 import org.eclipse.ui.forms.editor.FormPage;
  58 import org.eclipse.ui.forms.widgets.ScrolledForm;
  59
  60 /**
  61  * Exposes the various group id of a distribution as a tree.
  62  */
  63 public class ArtifactsBrowserPage extends FormPage implements DistConstants,
  64                 RepoConstants {
  65
  66         final static String PAGE_ID = "artifactsBrowserPage";
  67         // private final static Log log = LogFactory
  68         // .getLog(ArtifactsBrowserPage.class);
  69
  70         // Business object
  71         private Session session;
  72
  73         // This page widgets
  74         private TreeViewer artifactTreeViewer;
  75
  76         public ArtifactsBrowserPage(FormEditor editor, String title, Session session) {
  77                 super(editor, PAGE_ID, title);
  78                 this.session = session;
  79         }
  80
  81         @Override
  82         protected void createFormContent(IManagedForm managedForm) {
  83                 try {
  84                         ScrolledForm form = managedForm.getForm();
  85                         Composite parent = form.getBody();
  86                         // Enable the different parts to fill the whole page when the tab is
  87                         // maximized
  88                         parent.setLayout(new FillLayout());
  89                         createExportPackageSection(parent);
  90                         getEditor().getSite().setSelectionProvider(artifactTreeViewer);
  91                 } catch (RepositoryException e) {
  92                         throw new SlcException("Cannot create artifact browser page", e);
  93                 }
  94         }
  95
  96         private NodeIterator listNodes(String nodeType, String orderBy)
  97                         throws RepositoryException {
  98                 QueryManager queryManager = session.getWorkspace().getQueryManager();
  99                 QueryObjectModelFactory factory = queryManager.getQOMFactory();
 100
 101                 final String nodeSelector = "nodes";
 102                 Selector source = factory.selector(nodeType, nodeSelector);
 103
 104                 Ordering order = factory.ascending(factory.propertyValue(nodeSelector,
 105                                 orderBy));
 106                 Ordering[] orderings = { order };
 107
 108                 QueryObjectModel query = factory.createQuery(source, null, orderings,
 109                                 null);
 110
 111                 QueryResult result = query.execute();
 112
 113                 return result.getNodes();
 114         }
 115
 116         /** Export Package Section */
 117         private void createExportPackageSection(Composite parent)
 118                         throws RepositoryException {
 119
 120                 int style = SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL
 121                                 | SWT.FULL_SELECTION | SWT.BORDER;
 122                 Tree tree = new Tree(parent, style);
 123                 createColumn(tree, "Artifacts", SWT.LEFT, 300);
 124                 tree.setLinesVisible(true);
 125                 tree.setHeaderVisible(true);
 126
 127                 artifactTreeViewer = new TreeViewer(tree);
 128
 129                 artifactTreeViewer.setLabelProvider(new ColumnLabelProvider() {
 130                         @Override
 131                         public String getText(Object element) {
 132                                 Node node = (Node) element;
 133                                 try {
 134                                         if (node.isNodeType(SlcTypes.SLC_GROUP_BASE))
 135                                                 return JcrUtils.get((Node) element,
 136                                                                 SlcNames.SLC_GROUP_BASE_ID);
 137                                         else if (node.isNodeType(SlcTypes.SLC_ARTIFACT_BASE))
 138                                                 return JcrUtils.get((Node) element,
 139                                                                 SlcNames.SLC_ARTIFACT_ID);
 140                                         else
 141                                                 return node.getName();
 142                                 } catch (RepositoryException e) {
 143                                         throw new SlcException("Cannot browse artifacts", e);
 144                                 }
 145                         }
 146
 147                         @Override
 148                         public Image getImage(Object element) {
 149                                 Node node = (Node) element;
 150                                 try {
 151
 152                                         if (node.isNodeType(SlcTypes.SLC_GROUP_BASE))
 153                                                 return DistImages.IMG_WKSP;
 154                                         else if (node.isNodeType(SlcTypes.SLC_ARTIFACT_BASE))
 155                                                 return DistImages.IMG_ARTIFACT_BASE;
 156                                         else if (node
 157                                                         .isNodeType(SlcTypes.SLC_ARTIFACT_VERSION_BASE))
 158                                                 return DistImages.IMG_ARTIFACT_VERSION_BASE;
 159                                         else
 160                                                 return null;
 161                                 } catch (RepositoryException e) {
 162                                         throw new SlcException("Cannot get images for artifacts", e);
 163                                 }
 164                         }
 165                 });
 166
 167                 artifactTreeViewer.setContentProvider(new ITreeContentProvider() {
 168
 169                         public void dispose() {
 170                         }
 171
 172                         public void inputChanged(Viewer viewer, Object oldInput,
 173                                         Object newInput) {
 174                         }
 175
 176                         public Object[] getElements(Object inputElement) {
 177                                 try {
 178                                         List<Node> nodes = JcrUtils.nodeIteratorToList(listNodes(
 179                                                         SlcTypes.SLC_GROUP_BASE, SlcNames.SLC_NAME));
 180                                         return nodes.toArray();
 181                                 } catch (RepositoryException e) {
 182                                         throw new SlcException("Cannot list children Nodes", e);
 183                                 }
 184                         }
 185
 186                         public Object[] getChildren(Object parentElement) {
 187                                 // Only 3 levels for the time being
 188                                 try {
 189                                         Node pNode = (Node) parentElement;
 190                                         if (pNode.isNodeType(SlcTypes.SLC_GROUP_BASE)) {
 191                                                 return getArtifactBase(pNode,
 192                                                                 SlcTypes.SLC_ARTIFACT_BASE);
 193                                         } else if (pNode.isNodeType(SlcTypes.SLC_ARTIFACT_BASE)) {
 194                                                 return getArtifactBase(pNode,
 195                                                                 SlcTypes.SLC_ARTIFACT_VERSION_BASE);
 196                                         }
 197                                         return null;
 198                                 } catch (RepositoryException e) {
 199                                         throw new SlcException("Cannot list children Nodes", e);
 200                                 }
 201                         }
 202
 203                         // Helper to get children because current version of Jackrabbit is
 204                         // buggy in remote
 205                         private Object[] getArtifactBase(Node parent, String nodeType)
 206                                         throws RepositoryException {
 207                                 List<Node> nodes = new ArrayList<Node>();
 208                                 NodeIterator ni = parent.getNodes();
 209                                 while (ni.hasNext()) {
 210                                         Node node = ni.nextNode();
 211                                         if (node.isNodeType(nodeType))
 212                                                 nodes.add(node);
 213                                 }
 214                                 return nodes.toArray();
 215                         }
 216
 217                         public Object getParent(Object element) {
 218                                 return null;
 219                         }
 220
 221                         public boolean hasChildren(Object element) {
 222                                 try {
 223                                         Node pNode = (Node) element;
 224                                         if (pNode.isNodeType(SlcTypes.SLC_GROUP_BASE)
 225                                                         || pNode.isNodeType(SlcTypes.SLC_ARTIFACT_BASE)) {
 226                                                 // might return true even if there is no "valid" child
 227                                                 return pNode.hasNodes();
 228                                         } else
 229                                                 return false;
 230                                 } catch (RepositoryException e) {
 231                                         throw new SlcException("Cannot check children Nodes", e);
 232                                 }
 233                         }
 234                 });
 235
 236                 artifactTreeViewer.addDoubleClickListener(new DoubleClickListener());
 237
 238                 artifactTreeViewer.setInput("Initialize");
 239         }
 240
 241         private class DoubleClickListener implements IDoubleClickListener {
 242
 243                 public void doubleClick(DoubleClickEvent event) {
 244                         Object obj = ((IStructuredSelection) event.getSelection())
 245                                         .getFirstElement();
 246                         try {
 247                                 if (obj instanceof Node) {
 248                                         Node node = (Node) obj;
 249                                         if (node.isNodeType(SlcTypes.SLC_ARTIFACT_VERSION_BASE)) {
 250                                                 // TODO fix using QOM after jcr upgrade
 251                                                 NodeIterator ni = node.getNodes();
 252                                                 while (ni.hasNext()) {
 253                                                         Node curr = ni.nextNode();
 254                                                         if (curr.isNodeType(SlcTypes.SLC_BUNDLE_ARTIFACT)) {
 255                                                                 GenericBundleEditorInput gaei = new GenericBundleEditorInput(
 256                                                                                 curr);
 257                                                                 DistPlugin
 258                                                                                 .getDefault()
 259                                                                                 .getWorkbench()
 260                                                                                 .getActiveWorkbenchWindow()
 261                                                                                 .getActivePage()
 262                                                                                 .openEditor(gaei,
 263                                                                                                 GenericBundleEditor.ID);
 264                                                         }
 265                                                 }
 266                                         }
 267                                 }
 268                         } catch (RepositoryException re) {
 269                                 throw new ArgeoException(
 270                                                 "Repository error while getting node info", re);
 271                         } catch (PartInitException pie) {
 272                                 throw new ArgeoException(
 273                                                 "Unexepected exception while opening artifact editor",
 274                                                 pie);
 275                         }
 276                 }
 277         }
 278
 279         private static TreeColumn createColumn(Tree parent, String name, int style,
 280                         int width) {
 281                 TreeColumn result = new TreeColumn(parent, style);
 282                 result.setText(name);
 283                 result.setWidth(width);
 284                 result.setMoveable(true);
 285                 result.setResizable(true);
 286                 return result;
 287         }
 288
 289 }