Author: batosai
Date: 2008-08-05 15:31:12 +0000 (Tue, 05 Aug 2008)
New Revision: 21618

Modified:
   trunk/apps/WoT/src/plugins/WoT/WoT.java
Log:
Comments.

Modified: trunk/apps/WoT/src/plugins/WoT/WoT.java
===================================================================
--- trunk/apps/WoT/src/plugins/WoT/WoT.java     2008-08-05 15:13:22 UTC (rev 
21617)
+++ trunk/apps/WoT/src/plugins/WoT/WoT.java     2008-08-05 15:31:12 UTC (rev 
21618)
@@ -37,32 +37,36 @@
                this.db = db;
        }

+       /**
+        * Handles the creation of a new trust relationship, or the update of 
an existing one.
+        * @param newTrust A Trust object reflecting the trust relationship.
+        */
        public void setTrust(Trust newTrust) {

                boolean changedTrustValue = false;
                boolean changedComment = false;

                ObjectSet<Trust> trustResult = db.queryByExample(new 
Trust(newTrust.getTruster(), newTrust.getTrustee(), 0));
-               if(trustResult.size() != 0) {
+               if(trustResult.size() != 0) { // We are updating a existing 
trust relationship
                        Trust oldTrust = trustResult.next();
-                       if(oldTrust.getValue() != newTrust.getValue()) {
+                       if(oldTrust.getValue() != newTrust.getValue()) { // The 
trust value has changed
                                changedTrustValue = true;
                                oldTrust.setValue(newTrust.getValue());
                        }
-                       if(oldTrust.getComment() != newTrust.getComment()) {
+                       if(oldTrust.getComment() != newTrust.getComment()) { // 
The comment has changed
                                changedComment = true;
                                oldTrust.setComment(newTrust.getComment());
                        }
-                       if(changedComment || changedTrustValue) 
db.store(oldTrust);
+                       if(changedComment || changedTrustValue) 
db.store(oldTrust); // We store the changes, if needed
                }
-               else {
+               else { // This is a new trust relationship
                        db.store(newTrust);
                        changedTrustValue = true;
                }

-               if(changedTrustValue) {
+               if(changedTrustValue) { // We have to update the trust tree, 
starting with the trustee
                        ObjectSet<OwnIdentity> ownIdentites = 
db.queryByExample(OwnIdentity.class);
-                       while(ownIdentites.hasNext()) {
+                       while(ownIdentites.hasNext()) { // Each OwnIdentity has 
its trust tree, we update all
                                updateScore(ownIdentites.next(), 
newTrust.getTrustee());
                        }
                }
@@ -83,7 +87,7 @@
                int newCapacity = 0;
                boolean hasNegativeTrust = false;

-               
+               // We get the score of the identity, or create one if it 
doesn't exist 
                ObjectSet<Score> scoreResult = db.queryByExample(new 
Score(treeOwner, identity, 0, 0, 0));
                if(scoreResult.hasNext()) {
                        score = scoreResult.next();
@@ -91,12 +95,14 @@
                }
                else score = new Score(treeOwner, identity, 0, -1, 0);

+               // We get the trust given by the tree owner (because if it is 
negative, the identity has no capacity)
                ObjectSet<Trust> trustResult = db.queryByExample(new 
Trust(treeOwner, identity, 0));
                if(trustResult.hasNext()) {
                        Trust trust = trustResult.next();
                        if(trust.getValue() <= 0) hasNegativeTrust = true;
                }

+               // We get get all trust received by the identity
                ObjectSet<Trust> trusters = db.queryByExample(new Trust(null, 
identity, 0));
                while(trusters.hasNext()) {

@@ -104,13 +110,14 @@

                        Score trusterScore; 

+                       // We get the score of each identity that gives trust 
to this one 
                        ObjectSet<Score> trustersScore = db.queryByExample(new 
Score(treeOwner, trusterTrust.getTruster(), 0, 0, 0));
                        if(trustersScore.hasNext()) trusterScore = 
trustersScore.next();
-                       else trusterScore = new Score(treeOwner, 
trusterTrust.getTruster(), 0, -1, 0);
+                       else trusterScore = new Score(treeOwner, 
trusterTrust.getTruster(), 0, -1, 0); // This can only happen when you have 
multiple primary identities

-                       if(trusterScore.getCapacity() > 0) {
-                               newScore += trusterScore.getCapacity() * 
trusterTrust.getValue() / 100;
-                               if(newRank == -1 || newRank > 
trusterScore.getRank())
+                       if(trusterScore.getCapacity() > 0) { // If the truster 
has capacity
+                               newScore += trusterScore.getCapacity() * 
trusterTrust.getValue() / 100; // We update the trustee's score
+                               if(newRank == -1 || newRank > 
trusterScore.getRank()) // We store the lowest truster's rank (but not -1) 
                                        newRank = trusterScore.getRank();
                        }
                }
@@ -125,8 +132,9 @@
                score.setScore(newScore);

                db.store(score);
+               // We don't commit here because this method is going to be 
called *many* times while parsing a trust list.

-               if(oldCapacity != newCapacity) {
+               if(oldCapacity != newCapacity) { // If the capacity has 
changed, we have to update all identities this one trusts 
                        ObjectSet<Trust> trustees = db.queryByExample(new 
Trust(identity, null, 0));
                        while(trustees.hasNext()) {
                                Trust trustee = trustees.next();
@@ -135,11 +143,18 @@
                }
        }

+       /**
+        * @return The number of OwnIdentities in the WoT
+        */
        public int getNbOwnIdentities() {
                ObjectSet<OwnIdentity> ownIdentities = 
db.queryByExample(OwnIdentity.class);
                return ownIdentities.size();
        }

+       /**
+        * 
+        * @return The number of Identities in the WoT 
+        */
        public int getNbIdentities() {
                ObjectSet<Identity> identities = 
db.queryByExample(Identity.class);
                return identities.size() - getNbOwnIdentities();


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