Record and expose the last time all identities were loaded.

[Sone.git] / src / main / java / net / pterodactylus / sone / freenet / wot / IdentityManager.java

diff --git a/src/main/java/net/pterodactylus/sone/freenet/wot/IdentityManager.java b/src/main/java/net/pterodactylus/sone/freenet/wot/IdentityManager.java
index acd8633..bca6ac1 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/freenet/wot/IdentityManager.java
+++ b/src/main/java/net/pterodactylus/sone/freenet/wot/IdentityManager.java
@@ -1,5 +1,5 @@
 /*
- * Sone - IdentityManager.java - Copyright © 2010 David Roden
+ * Sone - IdentityManager.java - Copyright © 2010–2012 David Roden
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@ package net.pterodactylus.sone.freenet.wot;
 
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
@@ -43,6 +44,7 @@ import net.pterodactylus.util.service.AbstractService;
 public class IdentityManager extends AbstractService {
 
        /** Object used for synchronization. */
+       @SuppressWarnings("hiding")
        private final Object syncObject = new Object() {
                /* inner class for better lock names. */
        };
@@ -57,21 +59,28 @@ public class IdentityManager extends AbstractService {
        private final WebOfTrustConnector webOfTrustConnector;
 
        /** The context to filter for. */
-       private volatile String context;
+       private final String context;
 
        /** The currently known own identities. */
        /* synchronize access on syncObject. */
-       private Map<String, OwnIdentity> currentOwnIdentities = new HashMap<String, OwnIdentity>();
+       private final Map<String, OwnIdentity> currentOwnIdentities = new HashMap<String, OwnIdentity>();
+
+       /** The last time all identities were loaded. */
+       private volatile long identitiesLastLoaded;
 
        /**
         * Creates a new identity manager.
         *
         * @param webOfTrustConnector
         *            The Web of Trust connector
+        * @param context
+        *            The context to focus on (may be {@code null} to ignore
+        *            contexts)
         */
-       public IdentityManager(WebOfTrustConnector webOfTrustConnector) {
+       public IdentityManager(WebOfTrustConnector webOfTrustConnector, String context) {
                super("Sone Identity Manager", false);
                this.webOfTrustConnector = webOfTrustConnector;
+               this.context = context;
        }
 
        //
@@ -103,13 +112,13 @@ public class IdentityManager extends AbstractService {
        //
 
        /**
-        * Sets the context to filter own identities and trusted identities for.
+        * Returns the last time all identities were loaded.
         *
-        * @param context
-        *            The context to filter for, or {@code null} to not filter
+        * @return The last time all identities were loaded (in milliseconds since
+        *         Jan 1, 1970 UTC)
         */
-       public void setContext(String context) {
-               this.context = context;
+       public long getIdentitiesLastLoaded() {
+               return identitiesLastLoaded;
        }
 
        /**
@@ -140,7 +149,7 @@ public class IdentityManager extends AbstractService {
                Set<OwnIdentity> allOwnIdentities = getAllOwnIdentities();
                for (OwnIdentity ownIdentity : allOwnIdentities) {
                        if (ownIdentity.getId().equals(id)) {
-                               return ownIdentity;
+                               return new DefaultOwnIdentity(ownIdentity);
                        }
                }
                return null;
@@ -152,18 +161,7 @@ public class IdentityManager extends AbstractService {
         * @return All own identities
         */
        public Set<OwnIdentity> getAllOwnIdentities() {
-               try {
-                       Set<OwnIdentity> ownIdentities = webOfTrustConnector.loadAllOwnIdentities();
-                       Map<String, OwnIdentity> newOwnIdentities = new HashMap<String, OwnIdentity>();
-                       for (OwnIdentity ownIdentity : ownIdentities) {
-                               newOwnIdentities.put(ownIdentity.getId(), ownIdentity);
-                       }
-                       checkOwnIdentities(newOwnIdentities);
-                       return ownIdentities;
-               } catch (WebOfTrustException wote1) {
-                       logger.log(Level.WARNING, "Could not load all own identities!", wote1);
-                       return Collections.emptySet();
-               }
+               return new HashSet<OwnIdentity>(currentOwnIdentities.values());
        }
 
        //
@@ -181,6 +179,7 @@ public class IdentityManager extends AbstractService {
                        Map<String, OwnIdentity> currentOwnIdentities = new HashMap<String, OwnIdentity>();
 
                        Set<OwnIdentity> ownIdentities = null;
+                       boolean identitiesLoaded = false;
                        try {
                                /* get all identities with the wanted context from WoT. */
                                ownIdentities = webOfTrustConnector.loadAllOwnIdentities();
@@ -199,12 +198,13 @@ public class IdentityManager extends AbstractService {
                                                identities.put(identity.getId(), identity);
                                        }
                                }
+                               identitiesLoaded = true;
+                               identitiesLastLoaded = System.currentTimeMillis();
                        } catch (WebOfTrustException wote1) {
                                logger.log(Level.WARNING, "WoT has disappeared!", wote1);
-                               ownIdentities = null;
                        }
 
-                       if (ownIdentities != null) {
+                       if (identitiesLoaded) {
 
                                /* check for changes. */
                                checkOwnIdentities(currentOwnIdentities);
@@ -294,15 +294,17 @@ public class IdentityManager extends AbstractService {
 
                        /* find removed own identities: */
                        for (OwnIdentity oldOwnIdentity : currentOwnIdentities.values()) {
-                               if (!newOwnIdentities.containsKey(oldOwnIdentity.getId())) {
-                                       identityListenerManager.fireOwnIdentityRemoved(oldOwnIdentity);
+                               OwnIdentity newOwnIdentity = newOwnIdentities.get(oldOwnIdentity.getId());
+                               if ((newOwnIdentity == null) || ((context != null) && oldOwnIdentity.hasContext(context) && !newOwnIdentity.hasContext(context))) {
+                                       identityListenerManager.fireOwnIdentityRemoved(new DefaultOwnIdentity(oldOwnIdentity));
                                }
                        }
 
                        /* find added own identities. */
                        for (OwnIdentity currentOwnIdentity : newOwnIdentities.values()) {
-                               if (!currentOwnIdentities.containsKey(currentOwnIdentity.getId())) {
-                                       identityListenerManager.fireOwnIdentityAdded(currentOwnIdentity);
+                               OwnIdentity oldOwnIdentity = currentOwnIdentities.get(currentOwnIdentity.getId());
+                               if (((oldOwnIdentity == null) && ((context == null) || currentOwnIdentity.hasContext(context))) || ((oldOwnIdentity != null) && (context != null) && (!oldOwnIdentity.hasContext(context) && currentOwnIdentity.hasContext(context)))) {
+                                       identityListenerManager.fireOwnIdentityAdded(new DefaultOwnIdentity(currentOwnIdentity));
                                }
                        }