plugins/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/editors/DistWkspBrowserPage.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.HashMap;
  20 import java.util.List;
  21 import java.util.Map;
  22
  23 import javax.jcr.Node;
  24 import javax.jcr.NodeIterator;
  25 import javax.jcr.RepositoryException;
  26 import javax.jcr.Session;
  27 import javax.jcr.query.QueryManager;
  28 import javax.jcr.query.QueryResult;
  29 import javax.jcr.query.qom.Ordering;
  30 import javax.jcr.query.qom.QueryObjectModel;
  31 import javax.jcr.query.qom.QueryObjectModelFactory;
  32 import javax.jcr.query.qom.Selector;
  33
  34 import org.argeo.eclipse.ui.utils.CommandUtils;
  35 import org.argeo.jcr.JcrUtils;
  36 import org.argeo.slc.SlcException;
  37 import org.argeo.slc.client.ui.dist.DistConstants;
  38 import org.argeo.slc.client.ui.dist.DistImages;
  39 import org.argeo.slc.client.ui.dist.commands.OpenModuleEditor;
  40 import org.argeo.slc.jcr.SlcNames;
  41 import org.argeo.slc.jcr.SlcTypes;
  42 import org.argeo.slc.repo.RepoConstants;
  43 import org.eclipse.jface.viewers.ColumnLabelProvider;
  44 import org.eclipse.jface.viewers.DoubleClickEvent;
  45 import org.eclipse.jface.viewers.IDoubleClickListener;
  46 import org.eclipse.jface.viewers.IStructuredSelection;
  47 import org.eclipse.jface.viewers.ITreeContentProvider;
  48 import org.eclipse.jface.viewers.TreeViewer;
  49 import org.eclipse.jface.viewers.Viewer;
  50 import org.eclipse.swt.SWT;
  51 import org.eclipse.swt.graphics.Image;
  52 import org.eclipse.swt.layout.FillLayout;
  53 import org.eclipse.swt.widgets.Composite;
  54 import org.eclipse.swt.widgets.Tree;
  55 import org.eclipse.swt.widgets.TreeColumn;
  56 import org.eclipse.ui.forms.IManagedForm;
  57 import org.eclipse.ui.forms.editor.FormEditor;
  58 import org.eclipse.ui.forms.editor.FormPage;
  59 import org.eclipse.ui.forms.widgets.ScrolledForm;
  60
  61 /**
  62  * Expose Maven artifacts of a given workspace as a tree. Artifacts are grouped
  63  * by Maven group.
  64  */
  65 public class DistWkspBrowserPage extends FormPage implements DistConstants,
  66                 RepoConstants {
  67         // private final static Log log = LogFactory
  68         // .getLog(ArtifactsBrowserPage.class);
  69
  70         final static String PAGE_ID = "artifactsBrowserPage";
  71
  72         // Business object
  73         private Session session;
  74
  75         // This page widgets
  76         private TreeViewer artifactTreeViewer;
  77
  78         public DistWkspBrowserPage(FormEditor editor, String title, Session session) {
  79                 super(editor, PAGE_ID, title);
  80                 this.session = session;
  81         }
  82
  83         @Override
  84         protected void createFormContent(IManagedForm managedForm) {
  85                 try {
  86                         ScrolledForm form = managedForm.getForm();
  87                         Composite parent = form.getBody();
  88                         parent.setLayout(new FillLayout());
  89                         createMavenBrowserPart(parent);
  90                         getEditor().getSite().setSelectionProvider(artifactTreeViewer);
  91                 } catch (RepositoryException e) {
  92                         throw new SlcException("Cannot create artifact browser page", e);
  93                 }
  94         }
  95
  96         /** Aether specific browser for the current workspace */
  97         private void createMavenBrowserPart(Composite parent)
  98                         throws RepositoryException {
  99
 100                 int style = SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL
 101                                 | SWT.FULL_SELECTION | SWT.BORDER;
 102
 103                 Tree tree = new Tree(parent, style);
 104                 createColumn(tree, "Maven browser", SWT.LEFT, 450);
 105                 tree.setLinesVisible(true);
 106                 tree.setHeaderVisible(true);
 107
 108                 artifactTreeViewer = new TreeViewer(tree);
 109
 110                 artifactTreeViewer.setLabelProvider(new ColumnLabelProvider() {
 111                         @Override
 112                         public String getText(Object element) {
 113                                 Node node = (Node) element;
 114                                 try {
 115                                         if (node.isNodeType(SlcTypes.SLC_GROUP_BASE))
 116                                                 return JcrUtils.get((Node) element,
 117                                                                 SlcNames.SLC_GROUP_BASE_ID);
 118                                         else if (node.isNodeType(SlcTypes.SLC_ARTIFACT_BASE))
 119                                                 return JcrUtils.get((Node) element,
 120                                                                 SlcNames.SLC_ARTIFACT_ID);
 121                                         else
 122                                                 return node.getName();
 123                                 } catch (RepositoryException e) {
 124                                         throw new SlcException("Cannot browse artifacts", e);
 125                                 }
 126                         }
 127
 128                         @Override
 129                         public Image getImage(Object element) {
 130                                 Node node = (Node) element;
 131                                 try {
 132
 133                                         if (node.isNodeType(SlcTypes.SLC_GROUP_BASE))
 134                                                 return DistImages.IMG_GROUP_BASE;
 135                                         else if (node.isNodeType(SlcTypes.SLC_ARTIFACT_BASE))
 136                                                 return DistImages.IMG_ARTIFACT_BASE;
 137                                         else if (node
 138                                                         .isNodeType(SlcTypes.SLC_ARTIFACT_VERSION_BASE))
 139                                                 return DistImages.IMG_ARTIFACT_VERSION_BASE;
 140                                         else
 141                                                 return null;
 142                                 } catch (RepositoryException e) {
 143                                         throw new SlcException("Cannot get images for artifacts", e);
 144                                 }
 145                         }
 146                 });
 147
 148                 artifactTreeViewer.setContentProvider(new ITreeContentProvider() {
 149
 150                         public void dispose() {
 151                         }
 152
 153                         public void inputChanged(Viewer viewer, Object oldInput,
 154                                         Object newInput) {
 155                         }
 156
 157                         public Object[] getElements(Object inputElement) {
 158                                 try {
 159                                         List<Node> nodes = JcrUtils.nodeIteratorToList(listNodes(
 160                                                         SlcTypes.SLC_GROUP_BASE, SlcNames.SLC_NAME));
 161                                         return nodes.toArray();
 162                                 } catch (RepositoryException e) {
 163                                         throw new SlcException("Cannot list children Nodes", e);
 164                                 }
 165                         }
 166
 167                         public Object[] getChildren(Object parentElement) {
 168                                 // Only 3 levels for the time being
 169                                 try {
 170                                         Node pNode = (Node) parentElement;
 171                                         if (pNode.isNodeType(SlcTypes.SLC_GROUP_BASE)) {
 172                                                 return getArtifactBase(pNode,
 173                                                                 SlcTypes.SLC_ARTIFACT_BASE);
 174                                         } else if (pNode.isNodeType(SlcTypes.SLC_ARTIFACT_BASE)) {
 175                                                 return getArtifactBase(pNode,
 176                                                                 SlcTypes.SLC_ARTIFACT_VERSION_BASE);
 177                                         }
 178                                         return null;
 179                                 } catch (RepositoryException e) {
 180                                         throw new SlcException("Cannot list children Nodes", e);
 181                                 }
 182                         }
 183
 184                         // Helper to get children because current version of Jackrabbit is
 185                         // buggy in remote
 186                         private Object[] getArtifactBase(Node parent, String nodeType)
 187                                         throws RepositoryException {
 188                                 List<Node> nodes = new ArrayList<Node>();
 189                                 NodeIterator ni = parent.getNodes();
 190                                 while (ni.hasNext()) {
 191                                         Node node = ni.nextNode();
 192                                         if (node.isNodeType(nodeType))
 193                                                 nodes.add(node);
 194                                 }
 195                                 return nodes.toArray();
 196                         }
 197
 198                         public Object getParent(Object element) {
 199                                 return null;
 200                         }
 201
 202                         public boolean hasChildren(Object element) {
 203                                 try {
 204                                         Node pNode = (Node) element;
 205                                         if (pNode.isNodeType(SlcTypes.SLC_GROUP_BASE)
 206                                                         || pNode.isNodeType(SlcTypes.SLC_ARTIFACT_BASE)) {
 207                                                 // might return true even if there is no "valid" child
 208                                                 return pNode.hasNodes();
 209                                         } else
 210                                                 return false;
 211                                 } catch (RepositoryException e) {
 212                                         throw new SlcException("Cannot check children Nodes", e);
 213                                 }
 214                         }
 215                 });
 216
 217                 artifactTreeViewer.addDoubleClickListener(new DoubleClickListener());
 218
 219                 artifactTreeViewer.setInput("Initialize");
 220         }
 221
 222         private class DoubleClickListener implements IDoubleClickListener {
 223
 224                 public void doubleClick(DoubleClickEvent event) {
 225                         Object obj = ((IStructuredSelection) event.getSelection())
 226                                         .getFirstElement();
 227                         if (obj instanceof Node) {
 228                                 Node node = (Node) obj;
 229                                 try {
 230                                         if (node.isNodeType(SlcTypes.SLC_ARTIFACT_VERSION_BASE)) {
 231                                                 NodeIterator nit = node.getNodes();
 232                                                 while (nit.hasNext()) {
 233                                                         Node curr = nit.nextNode();
 234                                                         if (curr.isNodeType(SlcTypes.SLC_ARTIFACT)) {
 235                                                                 node = curr;
 236                                                                 break;
 237                                                         }
 238                                                 }
 239                                         }
 240
 241                                         if (node.isNodeType(SlcTypes.SLC_ARTIFACT)) {
 242                                                 DistWkspEditorInput dwip = (DistWkspEditorInput) getEditorInput();
 243                                                 Map<String, String> params = new HashMap<String, String>();
 244                                                 params.put(OpenModuleEditor.PARAM_REPO_NODE_PATH,
 245                                                                 dwip.getRepoNodePath());
 246                                                 params.put(OpenModuleEditor.PARAM_REPO_URI,
 247                                                                 dwip.getUri());
 248                                                 params.put(OpenModuleEditor.PARAM_WORKSPACE_NAME,
 249                                                                 dwip.getWorkspaceName());
 250                                                 String path = node.getPath();
 251                                                 params.put(OpenModuleEditor.PARAM_MODULE_PATH, path);
 252                                                 CommandUtils.callCommand(OpenModuleEditor.ID, params);
 253                                         }
 254                                 } catch (RepositoryException re) {
 255                                         throw new SlcException("Cannot get path for node " + node
 256                                                         + " while setting parameters for "
 257                                                         + "command OpenModuleEditor", re);
 258                                 }
 259
 260                         }
 261                 }
 262         }
 263
 264         private static TreeColumn createColumn(Tree parent, String name, int style,
 265                         int width) {
 266                 TreeColumn result = new TreeColumn(parent, style);
 267                 result.setText(name);
 268                 result.setWidth(width);
 269                 result.setMoveable(true);
 270                 result.setResizable(true);
 271                 return result;
 272         }
 273
 274         private NodeIterator listNodes(String nodeType, String orderBy)
 275                         throws RepositoryException {
 276                 QueryManager queryManager = session.getWorkspace().getQueryManager();
 277                 QueryObjectModelFactory factory = queryManager.getQOMFactory();
 278
 279                 final String nodeSelector = "nodes";
 280                 Selector source = factory.selector(nodeType, nodeSelector);
 281
 282                 Ordering order = factory.ascending(factory.propertyValue(nodeSelector,
 283                                 orderBy));
 284                 Ordering[] orderings = { order };
 285
 286                 QueryObjectModel query = factory.createQuery(source, null, orderings,
 287                                 null);
 288
 289                 QueryResult result = query.execute();
 290
 291                 return result.getNodes();
 292         }
 293
 294
 295 }