*/
package org.vamsas.client.simpleclient;
-import java.util.Hashtable;
import java.util.Vector;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
-import org.vamsas.client.IClient;
+import org.vamsas.client.ClientHandle;
import org.vamsas.client.IClientAppdata;
import org.vamsas.client.IClientDocument;
+import org.vamsas.client.Vobject;
import org.vamsas.client.VorbaId;
-import org.vamsas.client.object;
-import org.vamsas.objects.core.AppData;
import org.vamsas.objects.core.ApplicationData;
-import org.vamsas.objects.core.User;
import org.vamsas.objects.core.VAMSAS;
import org.vamsas.objects.core.VamsasDocument;
import org.vamsas.objects.utils.AppDataReference;
+import org.vamsas.test.objects.Core;
/**
- * @author jimp Contains a collection of vamsas objects and reference to a
- * specified ClientHandle's information.
+ * Maintains a collection of vamsas objects, appdatas and states, and provides api for a SimpleClient's client.
+ * @author jimp
*/
public class ClientDocument extends org.vamsas.client.ClientDocument implements IClientDocument {
private static Log log = LogFactory.getLog(ClientDocument.class);
private VamsasDocument doc;
- protected IClient vorba;
- protected ApplicationData appsglobal=null;
- protected User usersdata=null;
- protected byte[] appData=null;
+ protected SimpleClient sclient;
protected VamsasArchive archive = null;
/**
+ * indicate if new data has been incorporated
+ */
+ private boolean isModified = false;
+ /**
+ * Public method for internal use by SimpleClient.
+ * @return true if document has been modified.
+ */
+ public boolean isModified() {
+ return isModified;
+ }
+ private java.util.Hashtable objrefs=null;
+ /**
*
* prepare Application-side dataset from the vamsas Document archive
* @param doc - the dataset
* @param docHandler - the sessionFile IO handler
* @param Factory - the source of current and new vorbaIds
- * @param vorba - the client instance
+ * @param sclient - the simpleclient instance
*/
- protected ClientDocument(VamsasDocument doc, VamsasArchive docHandler, IdFactory Factory, IClient vorba) {
+ protected ClientDocument(VamsasDocument doc, VamsasArchive docHandler, IdFactory Factory, SimpleClient sclient) {
super(Factory.getVorbaIdHash(), Factory);
/**
* prepare Application-side dataset from the vamsas Document archive
*/
- this.vorba = vorba;
+ this.sclient = sclient;
archive = docHandler;
this.doc = doc;
- extractAppData();
- }
- /**
- * gets appropriate app data for the application, if it exists in this dataset
- *
- */
- private void extractAppData() {
- Vector apldataset = AppDataReference.getUserandApplicationsData(
- doc, vorbafactory.getUserHandle(), vorbafactory.getClientHandle());
- if (apldataset!=null) {
- if (apldataset.size()>0) {
- AppData clientdat = (AppData) apldataset.get(0);
- if (clientdat instanceof ApplicationData) {
- appsglobal = (ApplicationData) clientdat;
- if (apldataset.size()>1) {
- clientdat = (AppData) apldataset.get(1);
- if (clientdat instanceof User)
- usersdata = (User) clientdat;
- if (apldataset.size()>2)
- log.info("Ignoring additional ("+(apldataset.size()-2)+") AppDatas returned by document appdata query.");
- }
- } else {
- log.warn("Unexpected entry in AppDataReference query: id="+clientdat.getVorbaId()+" type="+clientdat.getClass().getName());
- }
- }
- }
+ objrefs = Factory.getVorbaIdHash();
}
/*
*
* @see org.vamsas.client.IClientDocument#getObject(org.vamsas.client.VorbaId)
*/
- public object getObject(VorbaId id) {
- // TODO: look up id in document object
- // retrieve object and return
+ public Vobject getObject(VorbaId id) {
+ if (objrefs.containsKey(id))
+ return (Vobject) objrefs.get(id);
+ log.debug("Returning null Vobject reference for id "+id.getId());
return null;
}
*
* @see org.vamsas.client.IClientDocument#getObjects(org.vamsas.client.VorbaId[])
*/
- public object[] getObjects(VorbaId[] ids) {
- // TODO: getObject in bulk
- return null;
+ public Vobject[] getObjects(VorbaId[] ids) {
+ Vobject[] vo = new Vobject[ids.length];
+ for (int i=0,j=ids.length; i<j;i++)
+ if (objrefs.containsKey(ids[i]))
+ vo[i] = (Vobject) objrefs.get(ids[i]);
+ else
+ log.debug("Returning null Vobject reference for id "+ids[i].getId());
+ return vo;
}
-
+ /**
+ * internal reference to single copy of Document Roots array
+ */
+ private VAMSAS[] _VamsasRoots=null;
/*
* (non-Javadoc)
- *
+ * LATER: currently there is only one Vector of roots ever passed to client - decide if this is correct (means this is not thread safe and may behave unexpectedly)
* @see org.vamsas.client.IClientDocument#getVamsasRoots()
*/
public VAMSAS[] getVamsasRoots() {
- if (doc.getVAMSAS() == null)
+ if (_VamsasRoots!=null)
+ return _VamsasRoots;
+ VAMSAS[] roots = doc.getVAMSAS();
+ if (roots == null) {
// Make a new one to return to client : TODO: Decide if this is correct
- return new VAMSAS[] { new VAMSAS() };
- return doc.getVAMSAS();
+ _VamsasRoots = new VAMSAS[] { new VAMSAS() };
+ } else {
+ _VamsasRoots = new VAMSAS[roots.length];
+ for (int r=0;r<roots.length; r++)
+ _VamsasRoots[r] = roots[r];
+ }
+ return _VamsasRoots;
}
- /**
- * update the document with new roots.
- */
- public void setVamsasRoots(VAMSAS[] newroots) {
+ private int _contains(VAMSAS root, VAMSAS[] docRoots) {
+ if (root==null)
+ return -1;
+ if (docRoots==null || docRoots.length==0)
+ return -1;
+ String r_id = root.getId();
+ for (int i=0,j=docRoots.length; i<j; i++)
+ if (docRoots[i]==root || (docRoots[i]!=null && docRoots[i].getId().equals(r_id)))
+ return i;
+ return -1;
+ }
+/**
+ * verify that newr version is really an intact version of the
+ * @param newVersion (may be modified)
+ * @param oldVersion
+ * @return true if newVersion is a valid root that preserves original references
+ */
+ private boolean isValidUpdate(VAMSAS newVersion, final VAMSAS oldVersion) {
+ // ideal - this cascades down the two structures, ensuring that all ID'd objects in one are present in the other.
+ if (oldVersion==newVersion) {
+ // may be a virgin root element.
+ if (!newVersion.isRegistered())
+ _registerObject(newVersion);
+ // Should retrieve original version and compare - unless local hashes can be used to determine if resultSet has been truncated.
+ // just do internal validation for moment.
+ if (newVersion.isValid())
+ return true;
+ return false;
+ } else {
+ // redundant ? if (oldVersion.is__stored_in_document())
+ if (!newVersion.isRegistered())
+ _registerObject(newVersion);
+ if (newVersion.isValid())
+ return true;
+ }
+ return false;
+ /**
+ * LATER isValidUpdate : Ideally. we efficiently walk down, comparing hashes, to deal with merging and verifying provenance for objects
+
// extract root objects
if (newroots != null) {
// check newroots for objects that were present in the old document
for (int i = 0, k = newroots.length; i < k; i++) {
if (newroots[i].isRegistered()) {
// easy - just check if anything has changed and do provenance
- object oldversion = getObject(newroots[i].getVorbaId());
+ Vobject oldversion = getObject(newroots[i].getVorbaId());
if (oldversion instanceof VAMSAS) {
- // LATER: appropriate merging behaviour when two clients have
- // modified the same registered object independently
+ // LATER: appropriate merging behaviour when two clients have improperly modified the same Vobject independently.
if (newroots[i].get__last_hash() != newroots[i].hashCode()) {
- // client has modified this object since last retrieval.
+ // client has modified this Vobject since last retrieval.
if (newroots[i].get__last_hash() != oldversion.get__last_hash()) {
- // object has been modified by another client since this
+ // Vobject has been modified by another client since this
// client's
// last access to document.
}
}
} else {
throw new Error(
- "SimpleClient error when using setVamsasRoots : The vorbaId for object "
+ "SimpleClient error when using setVamsasRoots : The vorbaId for Vobject "
+ i
- + " does not refer to an object of type VAMSAS in the current document!");
+ + " does not refer to an Vobject of type VAMSAS in the current document!");
}
} else {
if (!newroots[i].is__stored_in_document()) {
- // check if object is modified
+ // check if Vobject is modified
if (newroots[i].get__last_hash() != newroots[i].hashCode()) {
- // it is - so we add newroots[i] as a new object, with updated
+ // it is - so we add newroots[i] as a new Vobject, with updated
// provenance.
} else {
// do nothing
newroots[i] = null;
}
} else {
- // just add newroots[i] as a new object in the document
+ // just add newroots[i] as a new Vobject in the document
// - with appropriate provenance.
}
}
+ }*/
+ }
+ /**
+ * merge old and new root vectors
+ * @param newr This array may be written to
+ * @param original
+ * @param the client document (usually this) which this root set belongs to.
+ * @return merged vector of vamsas roots
+ */
+ private VAMSAS[] _combineRoots(VAMSAS[] newr, final VAMSAS[] original, ClientDocument modflag) {
+ Vector rts = new Vector();
+ boolean modified=false;
+ for (int i=0,j=original.length; i<j; i++) {
+ int k = _contains(original[i], newr);
+ if (k>-1) {
+ if (isValidUpdate(newr[k], original[i])) {
+ modified=true;
+ rts.add(newr[k]);
+ newr[k]=null;
+ } else {
+ // LATER: try harder to merge ducument roots.
+ log.warn("Couldn't merge new VAMSAS root "+newr[k].getId());
+ newr[k] = null; // LATER: this means we ignore mangled roots. NOT GOOD
+ }
+ } else {
+ // add in order.
+ rts.add(original[i]);
+ }
+ }
+ // add remaining (new) roots
+ for (int i=0,j=newr.length; i<j; i++) {
+ if (newr[i]!=null) {
+ rts.add(newr[i]);
+ modified=true;
}
}
+ newr = new VAMSAS[rts.size()];
+ for (int i=0,j=rts.size(); i<j; i++)
+ newr[i] = (VAMSAS) rts.get(i);
+ if (modflag!=null)
+ modflag.isModified = modified;
+ return newr;
}
+ /**
+ * update the document with new roots.
+ * LATER: decide: this affects the next call to getVamsasRoots()
+ * @see org.vamsas.IClientDocument.setVamsasRoots
+ */
+ public void setVamsasRoots(VAMSAS[] newroots) {
+ VAMSAS[] newr;
+ if (newroots==null) {
+ log.debug("setVamsasRoots(null) - do nothing.");
+ return;
+ }
+ // are we dealing with same array ?
+ if (_VamsasRoots!=newroots) {
+ // merge roots into local version.
+ newr = new VAMSAS[newroots.length];
+ for (int i=0;i<newr.length;i++)
+ newr[i] = newroots[i];
+ newr=_combineRoots(newr,_VamsasRoots,this);
+ } else {
+ newr = new VAMSAS[_VamsasRoots.length];
+ for (int i=0;i<newr.length;i++)
+ newr[i]=_VamsasRoots[i];
+ }
+ // actually compare with document root set for final combination (to ensure nothing is lost)
+ _VamsasRoots = _combineRoots(newr, doc.getVAMSAS(), this);
+ }
+
+
/* (non-Javadoc)
+ * LATER: decide: this affects the next call to getVamsasRoots()
* @see org.vamsas.client.IClientDocument#addVamsasRoot(org.vamsas.objects.core.VAMSAS)
*/
public void addVamsasRoot(VAMSAS newroot) {
- // TODO Auto-generated method stub
-
+ VAMSAS[] newroots = _combineRoots(new VAMSAS[] {newroot}, _VamsasRoots, this);
+ _VamsasRoots = newroots;
}
/*
* (non-Javadoc)
*
- * @see org.vamsas.client.IClientDocument#registerObjects(org.vamsas.client.object[])
+ * @see org.vamsas.client.IClientDocument#registerObjects(org.vamsas.client.Vobject[])
*/
- public VorbaId[] registerObjects(object[] unregistered) {
+ public VorbaId[] registerObjects(Vobject[] unregistered) {
if (unregistered!=null) {
VorbaId ids[] = new VorbaId[unregistered.length];
for (int i=0,k=unregistered.length; i<k; i++)
- ids[i]=registerObject(unregistered[i]);
+ if (unregistered[i]!=null) {
+ log.warn("Null Vobject passed to registerObject[] at position "+i);
+ return null;
+ } else {
+ ids[i]=registerObject(unregistered[i]);
+ }
+ log.debug("Registered "+unregistered.length+" objects - total of "+objrefs.size()+" ids.");
return ids;
}
return null;
}
-
/* (non-Javadoc)
- * @see org.vamsas.client.IClientDocument#registerObject(org.vamsas.client.object)
+ * @see org.vamsas.client.IClientDocument#registerObject(org.vamsas.client.Vobject)
*/
- public VorbaId registerObject(object unregistered) {
- // TODO: add provenance stuff to newly registered object
- return _registerObject(unregistered);
+ public VorbaId registerObject(Vobject unregistered) {
+ if (unregistered!=null) {
+ VorbaId id = _registerObject(unregistered);
+ log.debug("Registered object - total of "+objrefs.size()+" ids.");
+ return id;
+ }
+ log.warn("Null Vobject passed to registerObject.");
+ return null;
}
+ /**
+ * IClientAppdata instance - if it exists.
+ */
+ SimpleClientAppdata scappd = null;
/* (non-Javadoc)
* @see org.vamsas.client.IClientDocument#getClientAppdata()
*/
public IClientAppdata getClientAppdata() {
- // TODO Auto-generated method stub
+ if (scappd==null) {
+ log.debug("Creating new SimpleClientAppdata instance for "+sclient.getSessionHandle());
+ scappd = new SimpleClientAppdata(this);
+ if (scappd==null) {
+ // LATER: may not need this as a warning message.
+ log.warn("Null appdata object for "+sclient.getSessionHandle());
+ } else {
+ log.debug("Created SimpleClientAppdata successfully.");
+ }
+ } else {
+ log.debug("Returning existing SimpleClientAppdata reference.");
+ }
+ return scappd;
+ }
+ /**
+ * access the vamsas document
+ * @return the session's vamsas document
+ */
+ protected VamsasDocument getVamsasDocument() {
+ return doc;
+ }
+ /**
+ * returns the read-only IO interface for the vamsas document Jar file
+ * @return
+ */
+ protected VamsasArchiveReader getVamsasArchiveReader() {
+ try {
+ return archive.getOriginalArchiveReader();
+ } catch (Exception e) {
+ log.warn("Unable to create OriginalArchiveReader!", e);
+ }
return null;
}
+ protected boolean updateSessionDocument() throws java.io.IOException {
+ if (!isModified() && !scappd.isModified())
+ return false;
+ VamsasSession session = sclient._session;
+ log.debug("updating Session Document in "+session.sessionDir);
+ // update the VamsasDocument structure with any new appData's.
+ // try to update the sessionFile
+ log.debug("Attempting to update session "+sclient.session.getSessionUrn());
+ if (scappd.isModified()) {
+ ClientHandle client = sclient.client;
+ scappd.closeForWriting();
+ long newAppd = scappd.newAppData.sessionFile.length();
+
+ if (scappd.appsGlobal==null) {
+ ApplicationData appd = scappd.appsGlobal = new ApplicationData();
+ appd.setName(client.getClientName());
+ appd.setUrn(client.getClientUrn());
+ appd.setVersion(client.getVersion());
+ doc.addApplicationData(appd);
+ // embed or jarEntry ? - for now only jarEntry's are dealt with.
+ appd.setDataReference(AppDataReference.uniqueAppDataReference(doc, sclient.client.getClientUrn()));
+ }
+ if (scappd.newAppData!=null && scappd.newAppData.sessionFile.exists()) {
+ if (scappd.appsGlobal.getData()!=null) {
+ scappd.appsGlobal.setData(null);
+ scappd.appsGlobal.setDataReference(AppDataReference.uniqueAppDataReference(doc, sclient.client.getClientUrn()));
+ }
+
+
+
+ }
+ if (scappd.usersData==null) {
+
+ }
+
+ }
+ cdocument.archive.putVamsasDocument(vdoc);
+ // write the appHandle to the lastupdate file.
+ }
+ if (scappd!=null) {
+ if (scappd.accessedDocument)
+ }
+ va = new org.vamsas.client.simpleclient.VamsasArchive(newf, false, true, sfile);
+ doc = va.getVamsasDocument();
+ doc.addVAMSAS(Core.getDemoVamsas());
+ doc.addApplicationData(makeDemoAppdata(va,
+ "org.vamsas.test.simpleclient.VamsasArchive", "another old Bugger esq", "rescinded"));
+ if (va.transferRemainingAppDatas())
+ log.info("Remain appdatas were transferred.");
+ else
+ log.warn("No appdatas were transferred. This is wrong.");
+ va.putVamsasDocument(doc);
+ va.closeArchive();
+
+ return true; // successfully updated.
+ }
+ /* (non-Javadoc)
+ * @see java.lang.Object#finalize()
+ */
+ protected void finalize() throws Throwable {
+ log.debug("Garbage collecting on ClientDocument instance.");
+ if (scappd!=null) {
+ scappd.finalize();
+ scappd = null;
+ }
+ // TODO local garbage collection
+ super.finalize();
+ }
+
}
git://source.jalview.org / vamsas.git / blobdiff