2 * Copyright (C) 2007-2012 Argeo GmbH
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 package org
.argeo
.slc
.client
.ui
.views
;
18 import java
.util
.ArrayList
;
19 import java
.util
.Arrays
;
20 import java
.util
.Comparator
;
21 import java
.util
.Iterator
;
22 import java
.util
.List
;
23 import java
.util
.SortedSet
;
24 import java
.util
.TreeSet
;
26 import javax
.jcr
.Node
;
27 import javax
.jcr
.NodeIterator
;
28 import javax
.jcr
.Property
;
29 import javax
.jcr
.Repository
;
30 import javax
.jcr
.RepositoryException
;
31 import javax
.jcr
.Session
;
32 import javax
.jcr
.nodetype
.NodeType
;
33 import javax
.jcr
.observation
.Event
;
34 import javax
.jcr
.query
.Query
;
35 import javax
.jcr
.query
.QueryManager
;
37 import org
.apache
.commons
.logging
.Log
;
38 import org
.apache
.commons
.logging
.LogFactory
;
39 import org
.argeo
.ArgeoException
;
40 import org
.argeo
.eclipse
.ui
.jcr
.AsyncUiEventListener
;
41 import org
.argeo
.eclipse
.ui
.jcr
.DefaultNodeLabelProvider
;
42 import org
.argeo
.eclipse
.ui
.jcr
.NodeElementComparer
;
43 import org
.argeo
.eclipse
.ui
.jcr
.SimpleNodeContentProvider
;
44 import org
.argeo
.eclipse
.ui
.specific
.EclipseUiSpecificUtils
;
45 import org
.argeo
.jcr
.JcrUtils
;
46 import org
.argeo
.slc
.SlcException
;
47 import org
.argeo
.slc
.client
.ui
.ClientUiPlugin
;
48 import org
.argeo
.slc
.client
.ui
.SlcImages
;
49 import org
.argeo
.slc
.client
.ui
.editors
.ProcessEditor
;
50 import org
.argeo
.slc
.client
.ui
.editors
.ProcessEditorInput
;
51 import org
.argeo
.slc
.execution
.ExecutionModulesManager
;
52 import org
.argeo
.slc
.jcr
.SlcJcrConstants
;
53 import org
.argeo
.slc
.jcr
.SlcNames
;
54 import org
.argeo
.slc
.jcr
.SlcTypes
;
55 import org
.eclipse
.jface
.viewers
.DoubleClickEvent
;
56 import org
.eclipse
.jface
.viewers
.IDoubleClickListener
;
57 import org
.eclipse
.jface
.viewers
.IStructuredSelection
;
58 import org
.eclipse
.jface
.viewers
.ITableLabelProvider
;
59 import org
.eclipse
.jface
.viewers
.TreeViewer
;
60 import org
.eclipse
.swt
.SWT
;
61 import org
.eclipse
.swt
.dnd
.DND
;
62 import org
.eclipse
.swt
.dnd
.DragSourceAdapter
;
63 import org
.eclipse
.swt
.dnd
.DragSourceEvent
;
64 import org
.eclipse
.swt
.dnd
.TextTransfer
;
65 import org
.eclipse
.swt
.dnd
.Transfer
;
66 import org
.eclipse
.swt
.graphics
.Image
;
67 import org
.eclipse
.swt
.widgets
.Composite
;
68 import org
.eclipse
.swt
.widgets
.Display
;
69 import org
.eclipse
.ui
.IWorkbenchPage
;
70 import org
.eclipse
.ui
.PlatformUI
;
71 import org
.eclipse
.ui
.part
.ViewPart
;
73 /** JCR based view of the execution modules. */
74 public class JcrExecutionModulesView
extends ViewPart
implements SlcTypes
,
76 private final static Log log
= LogFactory
77 .getLog(JcrExecutionModulesView
.class);
79 public static final String ID
= ClientUiPlugin
.ID
80 + ".jcrExecutionModulesView";
82 private TreeViewer viewer
;
84 /* DEPENDENCY INJECTION */
85 private Session session
;
86 private ExecutionModulesManager modulesManager
;
88 public void createPartControl(Composite parent
) {
89 viewer
= new TreeViewer(parent
, SWT
.MULTI
| SWT
.H_SCROLL
| SWT
.V_SCROLL
);
90 EclipseUiSpecificUtils
.enableToolTipSupport(viewer
);
91 ViewContentProvider contentProvider
= new ViewContentProvider(session
);
92 viewer
.setContentProvider(contentProvider
);
93 viewer
.setComparer(new NodeElementComparer());
94 final ViewLabelProvider viewLabelProvider
= new ViewLabelProvider();
95 viewer
.setLabelProvider(viewLabelProvider
);
96 viewer
.setInput(getViewSite());
97 viewer
.addDoubleClickListener(new ViewDoubleClickListener());
99 // addContextMenu(viewer);
101 getViewSite().setSelectionProvider(viewer
);
103 Transfer
[] tt
= new Transfer
[] { TextTransfer
.getInstance() };
104 // Transfer[] tt = new Transfer[] { EditorInputTransfer.getInstance() };
105 int operations
= DND
.DROP_COPY
| DND
.DROP_MOVE
;
106 viewer
.addDragSupport(operations
, tt
, new ViewDragListener());
109 String
[] nodeTypes
= { SlcTypes
.SLC_AGENT
,
110 SlcTypes
.SLC_AGENT_FACTORY
, SlcTypes
.SLC_EXECUTION_MODULE
};
111 session
.getWorkspace()
112 .getObservationManager()
114 new VmAgentObserver(viewer
.getTree().getDisplay()),
115 Event
.NODE_ADDED
| Event
.NODE_REMOVED
117 SlcJcrConstants
.VM_AGENT_FACTORY_PATH
, true, null,
119 } catch (RepositoryException e
) {
120 throw new SlcException("Cannot add observer", e
);
124 public void setFocus() {
125 viewer
.getControl().setFocus();
128 public TreeViewer
getViewer() {
132 public void refreshView() {
133 viewer
.setInput(getViewSite());
137 class ViewContentProvider
extends SimpleNodeContentProvider
{
139 public ViewContentProvider(Session session
) {
141 new String
[] { SlcJcrConstants
.VM_AGENT_FACTORY_PATH
});
145 protected Object
[] sort(Object parent
, Object
[] children
) {
146 Object
[] sorted
= new Object
[children
.length
];
147 System
.arraycopy(children
, 0, sorted
, 0, children
.length
);
148 Arrays
.sort(sorted
, new ViewComparator());
153 protected List
<Node
> filterChildren(List
<Node
> children
)
154 throws RepositoryException
{
155 for (Iterator
<Node
> it
= children
.iterator(); it
.hasNext();) {
156 Node node
= it
.next();
157 // execution spec definitions
158 if (node
.getName().equals(SLC_EXECUTION_SPECS
))
161 else if (node
.getParent().isNodeType(
162 SlcTypes
.SLC_EXECUTION_FLOW
))
165 return super.filterChildren(children
);
169 public boolean hasChildren(Object element
) {
170 if (element
instanceof Node
) {
171 Node node
= (Node
) element
;
173 if (node
.isNodeType(SlcTypes
.SLC_EXECUTION_FLOW
))
175 } catch (RepositoryException e
) {
176 throw new SlcException("Cannot check has children", e
);
179 return super.hasChildren(element
);
183 static class ViewComparator
implements Comparator
<Object
> {
185 public int compare(Object o1
, Object o2
) {
187 if (o1
instanceof Node
&& o2
instanceof Node
) {
188 Node node1
= (Node
) o1
;
189 Node node2
= (Node
) o2
;
191 if (node1
.getName().equals(SLC_EXECUTION_SPECS
))
193 if (node2
.getName().equals(SLC_EXECUTION_SPECS
))
196 if (node1
.isNodeType(SLC_EXECUTION_FLOW
)
197 && node2
.isNodeType(SLC_EXECUTION_FLOW
)) {
198 return node1
.getName().compareTo(node2
.getName());
199 } else if (node1
.isNodeType(SLC_EXECUTION_FLOW
)
200 && !node2
.isNodeType(SLC_EXECUTION_FLOW
)) {
202 } else if (!node1
.isNodeType(SLC_EXECUTION_FLOW
)
203 && node2
.isNodeType(SLC_EXECUTION_FLOW
)) {
207 return node1
.getName().compareTo(node2
.getName());
210 } catch (RepositoryException e
) {
211 throw new ArgeoException("Cannot compare " + o1
+ " and " + o2
,
219 // private void addContextMenu(TreeViewer flowsViewer) {
221 // final MenuManager menuMgr = new MenuManager();
222 // menuMgr.setRemoveAllWhenShown(true);
223 // menuMgr.addMenuListener(new IMenuListener() {
225 // public void menuAboutToShow(IMenuManager manager) {
226 // menuMgr.add(new Action("Test") {
227 // public void run() {
228 // log.debug("do something");
233 // Menu menu = menuMgr.createContextMenu(flowsViewer.getControl());
234 // flowsViewer.getTree().setMenu(menu);
235 // getSite().registerContextMenu(menuMgr, flowsViewer);
238 class VmAgentObserver
extends AsyncUiEventListener
{
240 public VmAgentObserver(Display display
) {
244 protected void onEventInUiThread(List
<Event
> events
) {
245 for (Event event
: events
) {
247 String path
= event
.getPath();
249 if (session
.itemExists(path
)) {
250 Node parentNode
= session
.getNode(path
);// .getParent();
251 if (log
.isTraceEnabled())
252 log
.trace("Refresh " + parentNode
+ " after event "
254 viewer
.refresh(parentNode
);
256 } catch (RepositoryException e
) {
257 log
.warn("Cannot process event " + event
+ ": " + e
);
261 // TODO: optimize based on event
266 class ViewLabelProvider
extends DefaultNodeLabelProvider
implements
267 ITableLabelProvider
{
270 protected String
getText(Node node
) throws RepositoryException
{
271 if (node
.isNodeType(NodeType
.MIX_TITLE
)
272 && node
.hasProperty(Property
.JCR_TITLE
))
273 return node
.getProperty(Property
.JCR_TITLE
).getString();
274 else if (node
.getName().equals(SLC_EXECUTION_SPECS
))
275 return "Execution Specifications";
276 else if (node
.getPath().equals(
277 SlcJcrConstants
.VM_AGENT_FACTORY_PATH
))
278 return "Internal Agents";
279 return super.getText(node
);
283 public Image
getImage(Node node
) throws RepositoryException
{
284 // we try to optimize a bit by putting deeper nodes first
285 if (node
.getParent().isNodeType(
286 SlcTypes
.SLC_EXECUTION_SPEC_ATTRIBUTE
))
287 return SlcImages
.CHOICES
;
288 else if (node
.isNodeType(SlcTypes
.SLC_EXECUTION_SPEC_ATTRIBUTE
))
289 return SlcImages
.EXECUTION_SPEC_ATTRIBUTE
;
290 else if (node
.isNodeType(SlcTypes
.SLC_EXECUTION_SPEC
))
291 return SlcImages
.EXECUTION_SPEC
;
292 else if (node
.getName().equals(SLC_EXECUTION_SPECS
))
293 return SlcImages
.EXECUTION_SPECS
;
294 else if (node
.isNodeType(SlcTypes
.SLC_EXECUTION_FLOW
))
295 return SlcImages
.FLOW
;
296 else if (node
.isNodeType(SlcTypes
.SLC_MODULE
)) {
297 if (node
.getProperty(SLC_STARTED
).getBoolean())
298 return SlcImages
.MODULE
;
300 return SlcImages
.MODULE_STOPPED
;
301 } else if (node
.isNodeType(SlcTypes
.SLC_AGENT
))
302 return SlcImages
.AGENT
;
303 else if (node
.isNodeType(SlcTypes
.SLC_AGENT_FACTORY
))
304 return SlcImages
.AGENT_FACTORY
;
306 return SlcImages
.FOLDER
;
309 public String
getToolTipText(Node node
) throws RepositoryException
{
310 if (node
.isNodeType(NodeType
.MIX_TITLE
)
311 && node
.hasProperty(Property
.JCR_DESCRIPTION
))
312 return node
.getProperty(Property
.JCR_DESCRIPTION
).getString();
313 return super.getToolTipText(node
);
316 public String
getColumnText(Object obj
, int index
) {
320 public Image
getColumnImage(Object obj
, int index
) {
321 return getImage(obj
);
326 class ViewDoubleClickListener
implements IDoubleClickListener
{
327 public void doubleClick(DoubleClickEvent evt
) {
328 Object obj
= ((IStructuredSelection
) evt
.getSelection())
331 if (obj
instanceof Node
) {
332 Node node
= (Node
) obj
;
333 if (node
.isNodeType(SLC_EXECUTION_MODULE
)) {
334 ClientUiPlugin
.startStopExecutionModule(modulesManager
,
337 String path
= node
.getPath();
338 // TODO factorize with editor
339 QueryManager qm
= node
.getSession().getWorkspace()
341 String statement
= "SELECT * FROM ["
342 + SlcTypes
.SLC_EXECUTION_FLOW
343 + "] WHERE ISDESCENDANTNODE(['" + path
344 + "']) OR ISSAMENODE(['" + path
+ "'])";
345 // log.debug(statement);
346 Query query
= qm
.createQuery(statement
, Query
.JCR_SQL2
);
349 SortedSet
<String
> paths
= new TreeSet
<String
>();
350 for (NodeIterator nit
= query
.execute().getNodes(); nit
352 paths
.add(nit
.nextNode().getPath());
355 IWorkbenchPage activePage
= PlatformUI
.getWorkbench()
356 .getActiveWorkbenchWindow().getActivePage();
357 activePage
.openEditor(new ProcessEditorInput(
358 new ArrayList
<String
>(paths
), true),
362 } catch (Exception e
) {
363 throw new SlcException("Cannot open " + obj
, e
);
369 /** Listen to drags */
370 class ViewDragListener
extends DragSourceAdapter
{
372 // Check if the drag action should start.
373 public void dragStart(DragSourceEvent event
) {
374 // we only start drag if at least one of the selected elements is
376 boolean doIt
= false;
377 IStructuredSelection selection
= (IStructuredSelection
) viewer
379 @SuppressWarnings("rawtypes")
380 Iterator it
= selection
.iterator();
382 while (it
.hasNext()) {
383 Object obj
= it
.next();
384 if (obj
instanceof Node
) {
385 Node node
= (Node
) obj
;
386 if (node
.isNodeType(SlcTypes
.SLC_EXECUTION_FLOW
)
387 || node
.isNodeType(SlcTypes
.SLC_EXECUTION_MODULE
)) {
392 } catch (RepositoryException e
) {
393 throw new SlcException("Cannot read node to set drag data", e
);
398 public void dragSetData(DragSourceEvent event
) {
399 IStructuredSelection selection
= (IStructuredSelection
) viewer
401 StringBuilder buf
= new StringBuilder();
402 @SuppressWarnings("rawtypes")
403 Iterator it
= selection
.iterator();
406 while (it
.hasNext()) {
407 Object obj
= it
.next();
409 if (obj
instanceof Node
) {
410 Node node
= (Node
) obj
;
411 if ((node
.isNodeType(SlcTypes
.SLC_EXECUTION_FLOW
) || node
412 .isNodeType(SlcTypes
.SLC_EXECUTION_MODULE
))
413 && TextTransfer
.getInstance().isSupportedType(
415 buf
.append(node
.getPath()).append('\n');
419 } catch (RepositoryException e
) {
420 throw new SlcException("Cannot read node to set drag data", e
);
423 if (buf
.length() > 0) {
424 if (buf
.charAt(buf
.length() - 1) == '\n')
425 buf
.deleteCharAt(buf
.length() - 1);
426 event
.data
= buf
.toString();
427 log
.debug("data set to : " + buf
.toString());
432 public void dispose() {
433 JcrUtils
.logoutQuietly(session
);
437 // DEPENDENCY INJECTION
439 public void setModulesManager(ExecutionModulesManager modulesManager
) {
440 this.modulesManager
= modulesManager
;
444 public void setSession(Session session
) {
445 this.session
= session
;
448 public void setRepository(Repository repository
) {
450 session
= repository
.login();
451 } catch (RepositoryException re
) {
452 throw new SlcException("Unable to log in Repository " + repository
,