1 package uk.ac.vamsas.test;
3 import uk.ac.vamsas.client.*;
4 import uk.ac.vamsas.client.picking.IMessageHandler;
5 import uk.ac.vamsas.client.picking.IPickManager;
6 import uk.ac.vamsas.client.picking.Message;
7 import uk.ac.vamsas.objects.core.VAMSAS;
8 import uk.ac.vamsas.test.objects.Core;
10 import java.awt.Event;
11 import java.beans.PropertyChangeEvent;
12 import java.beans.PropertyChangeListener;
14 import java.io.IOException;
15 import java.util.Vector;
18 * Toy vamsas command line client application demonstrating the API.
19 * Currently runs with one argument: ExampleApplication.main(new String("watch"))
20 * Test: Start up at least two of these processes independently and they will
21 * successively modify and handle update events from the document model.
23 * Behaviour of each client:
24 * Event handlers are registered for documentUpdate.
25 * - every document update:
26 * * the vamsas document will be dumped to standard out using uk.ac.vamsas.test.simpleclient.ArchiveReports
27 * * if there are more than 4 vamsas roots, the first sequence in the first alignment of the first dataset of the second vamsas root will be appended with a single gap character and then written back to the session document.
28 * A pick thread is started, which sends random CUSTOM pick events every so often (tuning: flooding the pick channel seems to affect the behaviour of other vamsasClient threads, suggesting some object lock contention).
29 * A new vamsas root generated from uk.ac.vamsas.test.objects.Core.getDemoVamsas is added to the document.
30 * Then a while loop waits around for events until shutdown:
31 * - currently it will shutdown after 9 updates (totalUpdates)
32 * - an update will be made after every other update that is detected.
34 * Status: PickManager now shuts down correctly. Serial updates for two instances work correctly and are detected under j1.4 (need to test in 1.5 and 1.6).
37 * appData get/set methods
39 * TODO: verify and test pickManager and interaction
40 * between it and other session events
42 * TODO: add more session interaction events
44 * TODO: test client add/leave events - currently library generates exceptions for sessionlist and clientlist modifications.
49 public class ExampleApplication
51 private ClientHandle app;
53 private UserHandle user; // TODO: make this something defined by the
56 private IClientFactory clientfactory;
58 private IClient vorbaclient;
60 private byte[] mydata;
62 private Vector vamsasObjects;
64 private boolean isUpdated = false;
66 private boolean isShuttingdown = false;
68 private boolean isFinalizing = false;
69 private int totalUpdates = 9;
70 private uk.ac.vamsas.client.VorbaId recover = null;
71 private void processVamsasDocument(IClientDocument doc)
73 if (doc.getVamsasRoots().length<4) {
74 doc.addVamsasRoot(Core.getDemoVamsas());
77 uk.ac.vamsas.objects.core.DataSet ds = doc.getVamsasRoots()[1].getDataSet(0);
78 uk.ac.vamsas.objects.core.AlignmentSequence alsq = ds.getAlignment(0).getAlignmentSequence(0);
81 recover = alsq.getVorbaId();
83 Vobject recoverd = doc.getObject(recover);
84 System.out.println("Recovery of "+recover+" was "+((recoverd==null) ? "A FAILURE" : "SUCCESSFUL"));
86 System.out.println("Modifying Sequence:\n"+alsq.hashCode());
87 alsq.setSequence(alsq.getSequence()+ds.getAlignment(0).getGapChar());
88 System.out.println("Modifying Sequence:\n"+alsq.hashCode());
89 System.out.println("Modified Sequence:\n"+alsq.getSequence());
90 doc.setVamsasRoots(doc.getVamsasRoots());
91 } catch (Exception ee) {
95 vorbaclient.updateDocument(doc);
96 // merge vamsasObjects with vamsas objects in document
97 // get this apps 'mydata' if it hasn't got it already.
98 // .. access this application's 'public' mydata' if there is any.
101 private void addHandlers(IClient avorbaclient)
103 // make a non-volatile reference to the client instance.
104 final IClient vorbaclient = avorbaclient;
105 // register update handler
106 vorbaclient.addDocumentUpdateHandler(new PropertyChangeListener() {
107 public void propertyChange(PropertyChangeEvent evt)
109 System.out.println("Vamsas document update for "
110 + evt.getPropertyName() + ": " + evt.getOldValue()
111 + " to " + evt.getNewValue());
112 // merge new data into ours.
113 // example - output doc
116 IClientDocument cdoc = vorbaclient.getClientDocument();
117 uk.ac.vamsas.test.simpleclient.ArchiveReports.rootReport(
118 cdoc.getVamsasRoots(), true, System.out);
121 if (cdoc.getVamsasRoots().length>2) {
122 uk.ac.vamsas.objects.core.DataSet ds = cdoc.getVamsasRoots()[1].getDataSet(0);
123 uk.ac.vamsas.objects.core.AlignmentSequence alsq = ds.getAlignment(0).getAlignmentSequence(0);
124 if (alsq.isUpdated())
125 System.out.println("Seqeuence was updated since last time.");
126 alsq.setSequence(alsq.getSequence()+ds.getAlignment(0).getGapChar());
127 System.out.println("Newly Modified Sequence:\n"+alsq.getSequence());
128 cdoc.setVamsasRoots(cdoc.getVamsasRoots());
130 } catch (Exception ee) {
131 System.err.println("Exception whilst updating :");
132 ee.printStackTrace(System.err);
134 vorbaclient.updateDocument(cdoc);
139 .println("Exception whilst dumping document tree after an update.");
140 e.printStackTrace(System.err);
142 isUpdated = true; // tell main thread to reflect change...
145 // register close handler
146 vorbaclient.addVorbaEventHandler(Events.DOCUMENT_REQUESTTOCLOSE,
147 new PropertyChangeListener() {
148 public void propertyChange(PropertyChangeEvent evt)
151 .println("Received request to close vamsas document.");
152 // ask user for a filename to save it to.
153 // Then pass it to the vorba object...
154 vorbaclient.storeDocument(new java.io.File(
159 // register some more handlers to monitor the session :
161 vorbaclient.addVorbaEventHandler(Events.CLIENT_CREATION,
162 new PropertyChangeListener() {
163 public void propertyChange(PropertyChangeEvent evt)
165 System.out.println("New Vamsas client for "
166 + evt.getPropertyName() + ": "
167 + evt.getOldValue() + " to "
168 + evt.getNewValue());
169 // tell app add new client to its list of clients.
172 vorbaclient.addVorbaEventHandler(Events.CLIENT_FINALIZATION,
173 new PropertyChangeListener() {
174 public void propertyChange(PropertyChangeEvent evt)
176 System.out.println("Vamsas client finalizing for "
177 + evt.getPropertyName() + ": "
178 + evt.getOldValue() + " to "
179 + evt.getNewValue());
180 // tell app to update its list of clients to communicate
184 vorbaclient.addVorbaEventHandler(Events.SESSION_SHUTDOWN,
185 new PropertyChangeListener() {
186 public void propertyChange(PropertyChangeEvent evt)
188 System.out.println("Session " + evt.getPropertyName()
189 + " is shutting down.");
190 // tell app to finalize its session data before
194 vorbaclient.addVorbaEventHandler(Events.DOCUMENT_FINALIZEAPPDATA,
195 new PropertyChangeListener() {
196 public void propertyChange(PropertyChangeEvent evt)
199 .println("Application received a DOCUMENT_FINALIZEAPPDATA event.");
200 // tell app to finalize its session data prior to the
201 // storage of the current session as an archive.
207 public String Usage = "ExampleApplication :/n [-arena <vamsasFileDirectory>][-session <vamsasSessionURN>] <action> [+<arguments>]\n"
208 + "<action> is one of :\n\tsave,update,close,watch";
211 String importFile=null;
212 String outputFile=null;
213 private boolean parseArgs(String args[])
215 if (args.length == 0)
220 boolean parsed=false;
221 while (!parsed && cpos<args.length)
223 if (args[cpos].toLowerCase().equals("load") && cpos+1<args.length)
225 importFile=args[cpos+1];
229 if (args[cpos].toLowerCase().equals("save") && cpos+1<args.length)
231 outputFile=args[cpos+1];
235 // default behaviour - if not anything else its probably a session urn
236 if (!args[cpos].toLowerCase().equals("watch"))
245 class ExamplePicker extends Thread
249 public IPickManager pm = null;
251 ExamplePicker(String me, IPickManager pm)
262 try { Thread.sleep(1000 + (long) Math.random() * 10000); }
263 catch (Exception e) {}
267 pm.sendMessage(new uk.ac.vamsas.client.picking.CustomMessage("Message " + mcount++ + " from " + me));
274 public void runMe(String[] args)
276 if (!parseArgs(args))
278 System.err.print(Usage);
280 // get IClientFactory
283 clientfactory = new uk.ac.vamsas.client.simpleclient.SimpleClientFactory();
285 catch (IOException e)
287 System.err.println(e + "\n" + Usage);
291 // get an Iclient with session data
292 app = new ClientHandle("uk.ac.vamsas.test.ExampleApplication", "0.1");
293 user = new UserHandle("arnolduser", "deathsdoor");
298 System.out.println("Connecting to "+sess);
299 vorbaclient = clientfactory.getIClient(app, user, sess);
303 vorbaclient = clientfactory.getIClient(app, user);
306 catch (NoDefaultSessionException e)
309 .println("There appear to be several sessions to choose from :");
310 String[] sessions = clientfactory.getCurrentSessions();
311 for (int s = 0; s < sessions.length; s++)
312 System.err.println(sessions[s]);
315 addHandlers(vorbaclient);
318 vorbaclient.joinSession();
322 se.printStackTrace();
323 System.err.println(se + " when joining session.\n" + Usage);
326 // register an update listener and a close listener.
327 // import any data if requested to
328 if (importFile!=null)
330 File vfile = new File(importFile);
333 vorbaclient.importDocument(vfile);
337 System.err.println("Failed to import file "+importFile);
338 System.err.println("Exception received was "+e);
339 e.printStackTrace(System.err);
343 // Write out any data if requested to
344 if (outputFile!=null)
346 File vfile = new File(outputFile);
349 vorbaclient.storeDocument(vfile);
353 System.err.println("Failed to export session as file "+outputFile);
354 System.err.println("Exception received was "+e);
355 e.printStackTrace(System.err);
361 IClientDocument cdoc = vorbaclient.getClientDocument();
362 processVamsasDocument(cdoc);
367 .println("Unexpected exception when retrieving the client document for the first time!");
368 e.printStackTrace(System.err);
372 ExamplePicker picker = new ExamplePicker(vorbaclient.getClientHandle()
373 .getClientUrn(), vorbaclient.getPickManager());
376 if (picker.pm!=null) {
377 picker.pm.registerMessageHandler(new IMessageHandler() {
379 public void handleMessage(Message message)
382 .println("Received |" + message.getRawMessage() + "|");
383 shutdown +=100; // hang around for 5 seconds or so before dying naturally.
389 shutdown = System.currentTimeMillis()+10000; // hang around for 10 seconds or so before dying naturally.
390 while (!isShuttingdown && update < totalUpdates)
392 // do something with data
393 // , update document, or something.
397 System.out.println("Update handler called " + (++update)
400 .println("******************************************");
401 isUpdated = false; // TODO: saner update det method.
402 shutdown = System.currentTimeMillis()+10000;
407 IClientDocument cdoc = vorbaclient.getClientDocument();
408 processVamsasDocument(cdoc);
413 .println("Error when updating document after an even numbered update.");
414 e.printStackTrace(System.err);
418 if (System.currentTimeMillis()>shutdown)
424 try { Thread.sleep(50); }
425 catch (Exception e) {}
428 System.out.println("Finalizing.");
429 // call finalizeClient
430 vorbaclient.finalizeClient();
431 System.out.println("Shutting down picker.");
433 while (picker.isAlive())
435 System.out.println("Waiting for picker to die...");
446 // { meanwhile, eventHandlers are called to do any saves if need be }
447 // and all registered listeners will be deregistered to avoid deadlock.
450 System.out.println("Byee!");
452 public static void main(String[] args)
454 ExampleApplication example = new ExampleApplication();