import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
+import java.net.MalformedURLException;
import java.util.Hashtable;
import java.util.Vector;
import org.vamsas.client.Events;
import org.vamsas.client.IClient;
import org.vamsas.client.IClientDocument;
+import org.vamsas.client.IObjectUpdate;
+import org.vamsas.client.InvalidSessionUrnException;
import org.vamsas.client.SessionHandle;
import org.vamsas.client.UserHandle;
+import org.vamsas.objects.core.ApplicationData;
+import org.vamsas.objects.core.Entry;
import org.vamsas.objects.core.LockFile;
import org.vamsas.objects.core.VamsasDocument;
+import org.vamsas.objects.utils.AppDataReference;
import org.vamsas.objects.utils.ProvenanceStuff;
import org.vamsas.objects.utils.document.VersionEntries;
protected VamsasSession _session;
protected ClientHandle client = null;
protected EventGeneratorThread evgen = null;
+ protected ClientDocument cdocument = null;
+ /**
+ * object hash table that persists in each client holding vorbaIds and hash values after a document write
+ */
+ protected Hashtable extantobjects=null;
/**
* construct a transient IdFactory instance - this should last only as long as the
* SimpleClient object holds the lock on the vamsas document being created/manipulated.
* @param client
* @param sess
*/
- protected SimpleClient(UserHandle user, ClientHandle client, VamsasSession sess) {
+ protected SimpleClient(UserHandle user, ClientHandle client, VamsasSession sess) throws InvalidSessionUrnException {
// TODO: validate user/client/session
_session = sess;
this.user = user;
this.client = client;
- session = new SessionUrn(_session);
+ try {
+ session = new SessionUrn(_session);
+ } catch (MalformedURLException e) {
+ log.error("Couldn't form a valid SessionUrn object!",e);
+ throw new InvalidSessionUrnException(_session.toString());
+ }
}
/**
* construct new session by importing objects from an existing vamsas document
throw new Exception("Failed to import data from "+importingArchive, e);
}
}
-
+
/*
* (non-Javadoc)
* LATER: check that build substitution variables are correct
public UserHandle getUserHandle() {
return user;
}
-
+ /**
+ *
+ * @return user field for a provenance entry
+ */
+ protected String getProvenanceUser() {
+ return new String(user.getFullName());
+ }
+ /**
+ * construct a provenance entry for this client with the specified action string.
+ * @param action
+ * @return properly completed provenance entry
+ */
+ protected Entry getProvenanceEntry(String action) {
+ Entry prov = ProvenanceStuff.newProvenanceEntry(client.getClientUrn(), getProvenanceUser(), action);
+ return prov;
+ }
private Hashtable handlers = initHandlers();
private Vector listeners = new Vector();
* @see org.vamsas.client.IClient#getClientDocument()
*/
public IClientDocument getClientDocument() throws IOException {
-
+ if (cdocument!=null) {
+ // cdocument is non-nill if the ClientDocument.finalise() method hasn't been called.
+ return cdocument;
+ }
VamsasArchive va = null;
try {
- // TODO: bail out if it takes too long to get the lock ?
+ // LATER: bail out if it takes too long to get the lock ?
va = _session.getVamsasDocument();
}
catch (IOException e) {
// if session currently holds data - read it in - or get a dummy
_session.slog.debug("Accessing document");
doc =
- va.getVamsasDocument(user.getFullName()+" using "+client.getClientName(),
+ va.getVamsasDocument(getProvenanceUser(),
"created new session document.", null);
if (doc!=null)
_session.slog.debug("Successfully retrieved document.");
/*
* (non-Javadoc)
- *
+ * @throws Errors for invalid newdoc parameter
* @see org.vamsas.client.IClient#updateDocument(org.vamsas.client.IClientDocument)
*/
public void updateDocument(IClientDocument newdoc) {
if (!(newdoc instanceof ClientDocument)) {
throw new Error("Invalid IClientDocument instance for SimpleClient.");
}
-
- // try to update the sessionFile
-
- // write the appHandle to the lastupdate file.
-
+ if (cdocument==null)
+ throw new Error("Client Error - updateDocument() called before getClientDocument().");
+ if (newdoc!=cdocument)
+ throw new Error("Client Error - SimpleClient.updateDocument() can only take the IClientDocument instance returned from SimpleClient.getClientDocument()");
+ if (!cdocument.isModified()) {
+ if (log.isDebugEnabled())
+ log.debug("updateDocument for "+session.getSessionUrn()+" with unmodified IClientDocument.");
+ } else {
+ try {
+ if (!cdocument.updateSessionDocument()) {
+ log.warn("Session document did not update properly for session directory "+_session.sessionDir);
+ // cdocument.archive.cancelArchive(); // LATER: could be done - would need to prevent updateSessionDocument closing the archive.
+ _session.slog.warn("Session Document updated but may not be valid (false return from org.vamsas.simpleclient.ClientDocument.updateSessionDocument()");
+ }
+ }
+ catch (IOException e) {
+ log.warn("IO Problems when updating document!",e);
+ _session.slog.error("IO problems when attempting to update document.");
+ }
+ }
+ // garbage collect the ClientDocument instance.
+ try {
+ cdocument.finalize();
+
+ } catch (Throwable e) {
+ log.error("Exception when trying to garbage collect ClientDocument for "+session.getSessionUrn(), e);
+ }
+ cdocument = null; // this is probably done by finalize
}
/*
}
if (!evgen.isAlive()) {
- log.warn("pollUpdate called before joinSession()");
+ log.warn("pollUpdate called before joinSession() - trying to do this.");
try {
joinSession();
} catch (Exception e) {
*/
public void importDocument(File location) {
// TODO LATER: implement SimpleClient.importDocument()
- log.error("importDocument is not implemented for a SimpleClient Session.");
+ log.error("importDocument is not yet implemented for a SimpleClient Session.");
+ }
+
+ public IObjectUpdate getUpdateHandler(Class rootObject) {
+ // TODO Auto-generated method stub
+ return null;
+ }
+
+ public IObjectUpdate[] getUpdateHandlers() {
+ // TODO Auto-generated method stub
+ return null;
+ }
+
+ public void removeUpdateHandler(Class rootObject) {
+ // TODO Auto-generated method stub
+
+ }
+
+ public void setUpdateHandler(IObjectUpdate handler) {
+ // TODO Auto-generated method stub
+
}
}
git://source.jalview.org / vamsas.git / blobdiff