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[lgpl/argeo-commons.git] / eclipse / runtime / org.argeo.eclipse.ui.jcr / src / main / java / org / argeo / eclipse / ui / jcr / views / GenericJcrBrowser.java
index e39bc56599e130d8fc01258826ff81e14bf990ea..f949be319d74eba1ee693a257a5f8c68dbb1d379 100644 (file)
 package org.argeo.eclipse.ui.jcr.views;
 
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Comparator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.TreeSet;
-
-import javax.jcr.Item;
-import javax.jcr.LoginException;
+
 import javax.jcr.Node;
-import javax.jcr.NodeIterator;
 import javax.jcr.Property;
-import javax.jcr.PropertyIterator;
 import javax.jcr.PropertyType;
 import javax.jcr.Repository;
 import javax.jcr.RepositoryException;
 import javax.jcr.Session;
 import javax.jcr.nodetype.NodeType;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.argeo.ArgeoException;
-import org.argeo.eclipse.ui.TreeParent;
+import org.argeo.eclipse.ui.jcr.browser.NodeContentProvider;
+import org.argeo.eclipse.ui.jcr.browser.NodeLabelProvider;
+import org.argeo.eclipse.ui.jcr.browser.PropertiesContentProvider;
+import org.argeo.eclipse.ui.jcr.browser.RepositoryNode;
+import org.argeo.eclipse.ui.jcr.browser.WorkspaceNode;
+import org.argeo.eclipse.ui.jcr.utils.JcrFileProvider;
+import org.argeo.eclipse.ui.jcr.utils.NodeViewerComparer;
+import org.argeo.eclipse.ui.specific.FileHandler;
+import org.argeo.jcr.ArgeoJcrConstants;
+import org.argeo.jcr.JcrUtils;
 import org.argeo.jcr.RepositoryRegister;
+import org.eclipse.jface.action.MenuManager;
 import org.eclipse.jface.viewers.ColumnLabelProvider;
 import org.eclipse.jface.viewers.DoubleClickEvent;
 import org.eclipse.jface.viewers.IDoubleClickListener;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
-import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITreeContentProvider;
-import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.TableViewerColumn;
-import org.eclipse.jface.viewers.TreeNode;
 import org.eclipse.jface.viewers.TreeViewer;
-import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.SashForm;
 import org.eclipse.swt.layout.FillLayout;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
-import org.eclipse.ui.part.ViewPart;
+import org.eclipse.swt.widgets.Menu;
+
+public class GenericJcrBrowser extends AbstractJcrBrowser {
+       private final static Log log = LogFactory.getLog(GenericJcrBrowser.class);
 
-public class GenericJcrBrowser extends ViewPart {
-       // private final static Log log =
-       // LogFactory.getLog(GenericJcrBrowser.class);
+       private Session session;
 
        private TreeViewer nodesViewer;
+       private NodeContentProvider nodeContentProvider;
        private TableViewer propertiesViewer;
 
-       // private Session jcrSession;
-       private RepositoryRegister repositoryRegister;
+       private JcrFileProvider jcrFileProvider;
+       private FileHandler fileHandler;
 
-       private Comparator<Item> itemComparator = new Comparator<Item>() {
-               public int compare(Item o1, Item o2) {
-                       try {
-                               return o1.getName().compareTo(o2.getName());
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException("Cannot compare " + o1 + " and " + o2,
-                                               e);
-                       }
-               }
-       };
+       private RepositoryRegister repositoryRegister;
 
        @Override
        public void createPartControl(Composite parent) {
-               parent.setLayout(new FillLayout());
 
+               // look for session
+               Session nodeSession = session;
+               if (nodeSession == null) {
+                       Repository nodeRepository = JcrUtils.getRepositoryByAlias(
+                                       repositoryRegister, ArgeoJcrConstants.ALIAS_NODE);
+                       if (nodeRepository != null)
+                               try {
+                                       nodeSession = nodeRepository.login();
+                               } catch (RepositoryException e1) {
+                                       throw new ArgeoException("Cannot login to node repository");
+                               }
+               }
+
+               // Instantiate the generic object that fits for
+               // both RCP & RAP
+               // Note that in RAP, it registers a service handler that provide the
+               // access to the files.
+               jcrFileProvider = new JcrFileProvider();
+               fileHandler = new FileHandler(jcrFileProvider);
+
+               parent.setLayout(new FillLayout());
                SashForm sashForm = new SashForm(parent, SWT.VERTICAL);
                sashForm.setSashWidth(4);
                sashForm.setLayout(new FillLayout());
 
+               // Create the tree on top of the view
                Composite top = new Composite(sashForm, SWT.NONE);
                GridLayout gl = new GridLayout(1, false);
                top.setLayout(gl);
 
-               nodesViewer = new TreeViewer(top, SWT.MULTI | SWT.H_SCROLL
-                               | SWT.V_SCROLL);
-               nodesViewer.getTree().setLayoutData(
-                               new GridData(SWT.FILL, SWT.FILL, true, true));
-               nodesViewer.setContentProvider(new NodeContentProvider());
-               nodesViewer.setLabelProvider(new NodeLabelProvider());
-               nodesViewer
-                               .addSelectionChangedListener(new ISelectionChangedListener() {
-                                       public void selectionChanged(SelectionChangedEvent event) {
-                                               if (!event.getSelection().isEmpty()) {
-                                                       IStructuredSelection sel = (IStructuredSelection) event
-                                                                       .getSelection();
-                                                       propertiesViewer.setInput(sel.getFirstElement());
-                                               } else {
-                                                       propertiesViewer.setInput(getViewSite());
-                                               }
-                                       }
-                               });
-               nodesViewer.addDoubleClickListener(new IDoubleClickListener() {
-                       public void doubleClick(DoubleClickEvent event) {
-                               Object obj = ((IStructuredSelection) event.getSelection())
-                                               .getFirstElement();
-                               if (obj instanceof RepositoryNode) {
-                                       ((RepositoryNode) obj).login();
-                               } else if (obj instanceof WorkspaceNode) {
-                                       ((WorkspaceNode) obj).login();
-                               }
+               nodeContentProvider = new NodeContentProvider(nodeSession,
+                               repositoryRegister);
 
-                       }
-               });
-               nodesViewer.setInput(repositoryRegister);
+               // nodes viewer
+               nodesViewer = createNodeViewer(top, nodeContentProvider);
+
+               // context menu
+               MenuManager menuManager = new MenuManager();
+               Menu menu = menuManager.createContextMenu(nodesViewer.getTree());
+               nodesViewer.getTree().setMenu(menu);
+               getSite().registerContextMenu(menuManager, nodesViewer);
+               getSite().setSelectionProvider(nodesViewer);
+               nodesViewer.setInput(getViewSite());
 
+               // Create the property viewer on the bottom
                Composite bottom = new Composite(sashForm, SWT.NONE);
                bottom.setLayout(new GridLayout(1, false));
-
                propertiesViewer = new TableViewer(bottom);
                propertiesViewer.getTable().setLayoutData(
                                new GridData(SWT.FILL, SWT.FILL, true, true));
@@ -168,253 +162,129 @@ public class GenericJcrBrowser extends ViewPart {
                propertiesViewer.setInput(getViewSite());
 
                sashForm.setWeights(getWeights());
-
-       }
-
-       @Override
-       public void setFocus() {
-               nodesViewer.getTree().setFocus();
+               nodesViewer.setComparer(new NodeViewerComparer());
        }
 
        /**
-        * To be overidden to adapt size of form and result frames.
-        * 
-        * @return
+        * To be overridden to adapt size of form and result frames.
         */
        protected int[] getWeights() {
                return new int[] { 70, 30 };
        }
 
-       public void setRepositoryRegister(RepositoryRegister repositoryRegister) {
-               this.repositoryRegister = repositoryRegister;
+       // @Override
+       // public void setFocus() {
+       // nodesViewer.getTree().setFocus();
+       // }
+       //
+       // /*
+       // * NOTIFICATION
+       // */
+       // public void refresh(Object obj) {
+       // nodesViewer.refresh(obj);
+       // }
+       //
+       // public void nodeAdded(Node parentNode, Node newNode) {
+       // nodesViewer.refresh(parentNode);
+       // nodesViewer.expandToLevel(newNode, 0);
+       // }
+       //
+       // public void nodeRemoved(Node parentNode) {
+       //
+       // IStructuredSelection newSel = new StructuredSelection(parentNode);
+       // nodesViewer.setSelection(newSel, true);
+       // // Force refresh
+       // IStructuredSelection tmpSel = (IStructuredSelection) nodesViewer
+       // .getSelection();
+       // nodesViewer.refresh(tmpSel.getFirstElement());
+       // }
+
+       private JcrFileProvider getJcrFileProvider() {
+               return jcrFileProvider;
        }
 
-       /*
-        * NODES
-        */
-       protected Object[] childrenNodes(Node parentNode) {
-               try {
-                       List<Node> children = new ArrayList<Node>();
-                       NodeIterator nit = parentNode.getNodes();
-                       while (nit.hasNext()) {
-                               Node node = nit.nextNode();
-                               children.add(node);
-                       }
-                       Node[] arr = children.toArray(new Node[children.size()]);
-                       Arrays.sort(arr, itemComparator);
-                       return arr;
-               } catch (RepositoryException e) {
-                       throw new ArgeoException("Cannot list children of " + parentNode, e);
-               }
+       private FileHandler getFileHandler() {
+               return fileHandler;
        }
 
-       private class NodeContentProvider implements ITreeContentProvider {
-
-               public Object[] getElements(Object inputElement) {
-                       return getChildren(inputElement);
-               }
+       protected TreeViewer createNodeViewer(Composite parent,
+                       final ITreeContentProvider nodeContentProvider) {
 
-               public Object[] getChildren(Object parentElement) {
-                       if (parentElement instanceof Node) {
-                               return childrenNodes((Node) parentElement);
-                       } else if (parentElement instanceof RepositoryNode) {
-                               return ((RepositoryNode) parentElement).getChildren();
-                       } else if (parentElement instanceof WorkspaceNode) {
-                               Session session = ((WorkspaceNode) parentElement).getSession();
-                               if (session == null)
-                                       return new Object[0];
+               final TreeViewer tmpNodeViewer = new TreeViewer(parent, SWT.MULTI);
 
-                               try {
-                                       return childrenNodes(session.getRootNode());
-                               } catch (RepositoryException e) {
-                                       throw new ArgeoException("Cannot retrieve root node of "
-                                                       + session, e);
-                               }
-                       } else if (parentElement instanceof RepositoryRegister) {
-                               RepositoryRegister repositoryRegister = (RepositoryRegister) parentElement;
-                               List<RepositoryNode> nodes = new ArrayList<RepositoryNode>();
-                               Map<String, Repository> repositories = repositoryRegister
-                                               .getRepositories();
-                               for (String name : repositories.keySet()) {
-                                       nodes.add(new RepositoryNode(name, repositories.get(name)));
-                               }
-                               return nodes.toArray();
-                       } else {
-                               return new Object[0];
-                       }
-               }
+               tmpNodeViewer.getTree().setLayoutData(
+                               new GridData(SWT.FILL, SWT.FILL, true, true));
 
-               public Object getParent(Object element) {
-                       try {
-                               if (element instanceof Node) {
-                                       return ((Node) element).getParent();
-                               }
-                               return null;
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException(
-                                               "Cannot retrieve parent of " + element, e);
-                       }
-               }
+               tmpNodeViewer.setContentProvider(nodeContentProvider);
+               tmpNodeViewer.setLabelProvider(new NodeLabelProvider());
+               tmpNodeViewer
+                               .addSelectionChangedListener(new ISelectionChangedListener() {
+                                       public void selectionChanged(SelectionChangedEvent event) {
+                                               if (!event.getSelection().isEmpty()) {
+                                                       IStructuredSelection sel = (IStructuredSelection) event
+                                                                       .getSelection();
+                                                       propertiesViewer.setInput(sel.getFirstElement());
+                                               } else {
+                                                       propertiesViewer.setInput(getViewSite());
+                                               }
+                                       }
+                               });
 
-               public boolean hasChildren(Object element) {
-                       try {
-                               if (element instanceof Node) {
-                                       return ((Node) element).hasNodes();
-                               } else if (element instanceof RepositoryNode) {
-                                       return ((RepositoryNode) element).hasChildren();
-                               } else if (element instanceof WorkspaceNode) {
-                                       return ((WorkspaceNode) element).getSession() != null;
+               tmpNodeViewer.addDoubleClickListener(new IDoubleClickListener() {
+                       public void doubleClick(DoubleClickEvent event) {
+                               if (event.getSelection() == null
+                                               || event.getSelection().isEmpty())
+                                       return;
+                               Object obj = ((IStructuredSelection) event.getSelection())
+                                               .getFirstElement();
+                               if (obj instanceof RepositoryNode) {
+                                       RepositoryNode rpNode = (RepositoryNode) obj;
+                                       rpNode.login();
+                                       tmpNodeViewer.refresh(obj);
+                               } else if (obj instanceof WorkspaceNode) {
+                                       ((WorkspaceNode) obj).login();
+                                       tmpNodeViewer.refresh(obj);
+                               } else if (obj instanceof Node) {
+                                       Node node = (Node) obj;
+
+                                       // double clic on a file node triggers its opening
+                                       try {
+                                               if (node.isNodeType(NodeType.NT_FILE)) {
+                                                       String name = node.getName();
+                                                       String id = node.getIdentifier();
+                                                       // For the file provider to be able to browse the
+                                                       // various
+                                                       // repository.
+                                                       // TODO : enhanced that.
+                                                       getJcrFileProvider().setRootNodes(
+                                                                       (Object[]) nodeContentProvider
+                                                                                       .getElements(null));
+
+                                                       getFileHandler().openFile(name, id);
+                                               }
+                                       } catch (RepositoryException re) {
+                                               throw new ArgeoException(
+                                                               "Repository error while getting Node file info",
+                                                               re);
+                                       }
                                }
-                               return false;
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException("Cannot check children of " + element,
-                                               e);
                        }
-               }
-
-               public void dispose() {
-               }
-
-               public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
-               }
-
+               });
+               return tmpNodeViewer;
        }
 
-       class NodeLabelProvider extends LabelProvider {
-
-               public String getText(Object element) {
-                       try {
-                               if (element instanceof Node) {
-                                       Node node = (Node) element;
-                                       String label = node.getName();
-                                       // try {
-                                       // Item primaryItem = node.getPrimaryItem();
-                                       // label = primaryItem instanceof Property ? ((Property)
-                                       // primaryItem)
-                                       // .getValue().getString()
-                                       // + " ("
-                                       // + node.getName()
-                                       // + ")" : node.getName();
-                                       // } catch (RepositoryException e) {
-                                       // label = node.getName();
-                                       // }
-                                       StringBuffer mixins = new StringBuffer("");
-                                       for (NodeType type : node.getMixinNodeTypes())
-                                               mixins.append(' ').append(type.getName());
-
-                                       return label + " [" + node.getPrimaryNodeType().getName()
-                                                       + mixins + "]";
-                               }
-                               return element.toString();
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException("Cannot get text for of " + element, e);
-                       }
-               }
-
+       @Override
+       protected TreeViewer getNodeViewer() {
+               return nodesViewer;
        }
 
-       /*
-        * PROPERTIES
-        */
-       private class PropertiesContentProvider implements
-                       IStructuredContentProvider {
-
-               public void dispose() {
-               }
-
-               public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
-               }
-
-               public Object[] getElements(Object inputElement) {
-                       try {
-                               if (inputElement instanceof Node) {
-                                       Set<Property> props = new TreeSet<Property>(itemComparator);
-                                       PropertyIterator pit = ((Node) inputElement)
-                                                       .getProperties();
-                                       while (pit.hasNext())
-                                               props.add(pit.nextProperty());
-                                       return props.toArray();
-                               }
-                               return new Object[] {};
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException("Cannot get element for "
-                                               + inputElement, e);
-                       }
-               }
-
+       // IoC
+       public void setRepositoryRegister(RepositoryRegister repositoryRegister) {
+               this.repositoryRegister = repositoryRegister;
        }
 
-       private class RepositoryNode extends TreeParent {
-               private final String name;
-               private final Repository repository;
-               private Session defaultSession = null;
-
-               public RepositoryNode(String name, Repository repository) {
-                       super(name);
-                       this.name = name;
-                       this.repository = repository;
-               }
-
-               public Repository getRepository() {
-                       return repository;
-               }
-
-               public Session getDefaultSession() {
-                       return defaultSession;
-               }
-
-               public void login() {
-                       try {
-                               defaultSession = repository.login();
-                               String[] wkpNames = defaultSession.getWorkspace()
-                                               .getAccessibleWorkspaceNames();
-                               for (String wkpName : wkpNames) {
-                                       if (wkpName.equals(defaultSession.getWorkspace().getName()))
-                                               addChild(new WorkspaceNode(repository, wkpName,
-                                                               defaultSession));
-                                       else
-                                               addChild(new WorkspaceNode(repository, wkpName));
-                               }
-                               nodesViewer.refresh(this);
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException(
-                                               "Cannot connect to repository " + name, e);
-                       }
-               }
+       public void setSession(Session session) {
+               this.session = session;
        }
 
-       private class WorkspaceNode extends TreeParent {
-               private final String name;
-               private final Repository repository;
-               private Session session = null;
-
-               public WorkspaceNode(Repository repository, String name) {
-                       this(repository, name, null);
-               }
-
-               public WorkspaceNode(Repository repository, String name, Session session) {
-                       super(name);
-                       this.name = name;
-                       this.repository = repository;
-                       this.session = session;
-               }
-
-               public Session getSession() {
-                       return session;
-               }
-
-               public void login() {
-                       try {
-                               if (session != null)
-                                       session.logout();
-
-                               session = repository.login(name);
-                               nodesViewer.refresh(this);
-                       } catch (RepositoryException e) {
-                               throw new ArgeoException(
-                                               "Cannot connect to repository " + name, e);
-                       }
-               }
-
-       }
 }