Get trust values for trusted identities.
[Sone.git] / src / main / java / net / pterodactylus / sone / freenet / wot / WebOfTrustConnector.java
index 1720bec..531275d 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Sone - WebOfTrustConnector.java - Copyright © 2010 David Roden
+ * Sone - WebOfTrustConnector.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
 
 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.Set;
+import java.util.concurrent.atomic.AtomicLong;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -29,6 +29,7 @@ import net.pterodactylus.sone.freenet.plugin.ConnectorListener;
 import net.pterodactylus.sone.freenet.plugin.PluginConnector;
 import net.pterodactylus.sone.freenet.plugin.PluginException;
 import net.pterodactylus.util.logging.Logging;
+import net.pterodactylus.util.number.Numbers;
 import freenet.support.SimpleFieldSet;
 import freenet.support.api.Bucket;
 
@@ -37,19 +38,16 @@ import freenet.support.api.Bucket;
  *
  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
-public class WebOfTrustConnector implements ConnectorListener {
+public class WebOfTrustConnector {
 
        /** The logger. */
        private static final Logger logger = Logging.getLogger(WebOfTrustConnector.class);
 
        /** The name of the WoT plugin. */
-       private static final String WOT_PLUGIN_NAME = "plugins.WoT.WoT";
+       private static final String WOT_PLUGIN_NAME = "plugins.WebOfTrust.WebOfTrust";
 
-       /** A random connection identifier. */
-       private static final String PLUGIN_CONNECTION_IDENTIFIER = "Sone-WoT-Connector-" + Math.abs(Math.random());
-
-       /** The current replies that we wait for. */
-       private final Map<String, Reply> replies = Collections.synchronizedMap(new HashMap<String, Reply>());
+       /** Counter for connection identifiers. */
+       private final AtomicLong counter = new AtomicLong();
 
        /** The plugin connector. */
        private final PluginConnector pluginConnector;
@@ -63,7 +61,6 @@ public class WebOfTrustConnector implements ConnectorListener {
         */
        public WebOfTrustConnector(PluginConnector pluginConnector) {
                this.pluginConnector = pluginConnector;
-               pluginConnector.addConnectorListener(WOT_PLUGIN_NAME, PLUGIN_CONNECTION_IDENTIFIER, this);
        }
 
        //
@@ -71,6 +68,13 @@ public class WebOfTrustConnector implements ConnectorListener {
        //
 
        /**
+        * Stops the web of trust connector.
+        */
+       public void stop() {
+               /* does nothing. */
+       }
+
+       /**
         * Loads all own identities from the Web of Trust plugin.
         *
         * @return All own identity
@@ -78,7 +82,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if the own identities can not be loaded
         */
        public Set<OwnIdentity> loadAllOwnIdentities() throws WebOfTrustException {
-               Reply reply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetOwnIdentities").get(), "OwnIdentities");
+               Reply reply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetOwnIdentities").get());
                SimpleFieldSet fields = reply.getFields();
                int ownIdentityCounter = -1;
                Set<OwnIdentity> ownIdentities = new HashSet<OwnIdentity>();
@@ -90,9 +94,9 @@ public class WebOfTrustConnector implements ConnectorListener {
                        String requestUri = fields.get("RequestURI" + ownIdentityCounter);
                        String insertUri = fields.get("InsertURI" + ownIdentityCounter);
                        String nickname = fields.get("Nickname" + ownIdentityCounter);
-                       DefaultOwnIdentity ownIdentity = new DefaultOwnIdentity(this, id, nickname, requestUri, insertUri);
-                       ownIdentity.setContextsPrivate(parseContexts("Contexts" + ownIdentityCounter + ".", fields));
-                       ownIdentity.setPropertiesPrivate(parseProperties("Properties" + ownIdentityCounter + ".", fields));
+                       DefaultOwnIdentity ownIdentity = new DefaultOwnIdentity(id, nickname, requestUri, insertUri);
+                       ownIdentity.setContexts(parseContexts("Contexts" + ownIdentityCounter + ".", fields));
+                       ownIdentity.setProperties(parseProperties("Properties" + ownIdentityCounter + ".", fields));
                        ownIdentities.add(ownIdentity);
                }
                return ownIdentities;
@@ -125,7 +129,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public Set<Identity> loadTrustedIdentities(OwnIdentity ownIdentity, String context) throws PluginException {
-               Reply reply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetIdentitiesByScore").put("TreeOwner", ownIdentity.getId()).put("Selection", "+").put("Context", (context == null) ? "" : context).get(), "Identities");
+               Reply reply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetIdentitiesByScore").put("Truster", ownIdentity.getId()).put("Selection", "+").put("Context", (context == null) ? "" : context).put("WantTrustValues", "true").get());
                SimpleFieldSet fields = reply.getFields();
                Set<Identity> identities = new HashSet<Identity>();
                int identityCounter = -1;
@@ -136,9 +140,13 @@ public class WebOfTrustConnector implements ConnectorListener {
                        }
                        String nickname = fields.get("Nickname" + identityCounter);
                        String requestUri = fields.get("RequestURI" + identityCounter);
-                       DefaultIdentity identity = new DefaultIdentity(this, id, nickname, requestUri);
-                       identity.setContextsPrivate(parseContexts("Contexts" + identityCounter + ".", fields));
-                       identity.setPropertiesPrivate(parseProperties("Properties" + identityCounter + ".", fields));
+                       DefaultIdentity identity = new DefaultIdentity(id, nickname, requestUri);
+                       identity.setContexts(parseContexts("Contexts" + identityCounter + ".", fields));
+                       identity.setProperties(parseProperties("Properties" + identityCounter + ".", fields));
+                       Integer trust = Numbers.safeParseInteger(fields.get("Trust" + identityCounter), null);
+                       int score = Numbers.safeParseInteger(fields.get("Score" + identityCounter));
+                       int rank = Numbers.safeParseInteger(fields.get("Rank" + identityCounter));
+                       identity.setTrust(ownIdentity, new Trust(trust, score, rank));
                        identities.add(identity);
                }
                return identities;
@@ -155,7 +163,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public void addContext(OwnIdentity ownIdentity, String context) throws PluginException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "AddContext").put("Identity", ownIdentity.getId()).put("Context", context).get(), "ContextAdded");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "AddContext").put("Identity", ownIdentity.getId()).put("Context", context).get());
        }
 
        /**
@@ -169,7 +177,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public void removeContext(OwnIdentity ownIdentity, String context) throws PluginException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "RemoveContext").put("Identity", ownIdentity.getId()).put("Context", context).get(), "ContextRemoved");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "RemoveContext").put("Identity", ownIdentity.getId()).put("Context", context).get());
        }
 
        /**
@@ -184,7 +192,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public String getProperty(Identity identity, String name) throws PluginException {
-               Reply reply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetProperty").put("Identity", identity.getId()).put("Property", name).get(), "PropertyValue");
+               Reply reply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetProperty").put("Identity", identity.getId()).put("Property", name).get());
                return reply.getFields().get("Property");
        }
 
@@ -201,7 +209,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public void setProperty(OwnIdentity ownIdentity, String name, String value) throws PluginException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "SetProperty").put("Identity", ownIdentity.getId()).put("Property", name).put("Value", value).get(), "PropertyAdded");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "SetProperty").put("Identity", ownIdentity.getId()).put("Property", name).put("Value", value).get());
        }
 
        /**
@@ -215,7 +223,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public void removeProperty(OwnIdentity ownIdentity, String name) throws PluginException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "RemoveProperty").put("Identity", ownIdentity.getId()).put("Property", name).get(), "PropertyRemoved");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "RemoveProperty").put("Identity", ownIdentity.getId()).put("Property", name).get());
        }
 
        /**
@@ -231,7 +239,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public Trust getTrust(OwnIdentity ownIdentity, Identity identity) throws PluginException {
-               Reply getTrustReply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetIdentity").put("TreeOwner", ownIdentity.getId()).put("Identity", identity.getId()).get(), "Identity");
+               Reply getTrustReply = performRequest(SimpleFieldSetConstructor.create().put("Message", "GetIdentity").put("Truster", ownIdentity.getId()).put("Identity", identity.getId()).get());
                String trust = getTrustReply.getFields().get("Trust");
                String score = getTrustReply.getFields().get("Score");
                String rank = getTrustReply.getFields().get("Rank");
@@ -267,7 +275,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occured talking to the Web of Trust plugin
         */
        public void setTrust(OwnIdentity ownIdentity, Identity identity, int trust, String comment) throws PluginException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "SetTrust").put("Truster", ownIdentity.getId()).put("Trustee", identity.getId()).put("Value", String.valueOf(trust)).put("Comment", comment).get(), "TrustSet");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "SetTrust").put("Truster", ownIdentity.getId()).put("Trustee", identity.getId()).put("Value", String.valueOf(trust)).put("Comment", comment).get());
        }
 
        /**
@@ -282,7 +290,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if an error occurs
         */
        public void removeTrust(OwnIdentity ownIdentity, Identity identity) throws WebOfTrustException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "RemoveTrust").put("Truster", ownIdentity.getId()).put("Trustee", identity.getId()).get(), "TrustRemoved");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "RemoveTrust").put("Truster", ownIdentity.getId()).put("Trustee", identity.getId()).get());
        }
 
        /**
@@ -293,7 +301,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *             if the plugin is not loaded
         */
        public void ping() throws PluginException {
-               performRequest(SimpleFieldSetConstructor.create().put("Message", "Ping").get(), "Pong");
+               performRequest(SimpleFieldSetConstructor.create().put("Message", "Ping").get());
        }
 
        //
@@ -309,7 +317,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *            The fields to parse the contexts from
         * @return The parsed contexts
         */
-       private Set<String> parseContexts(String prefix, SimpleFieldSet fields) {
+       private static Set<String> parseContexts(String prefix, SimpleFieldSet fields) {
                Set<String> contexts = new HashSet<String>();
                int contextCounter = -1;
                while (true) {
@@ -331,7 +339,7 @@ public class WebOfTrustConnector implements ConnectorListener {
         *            The fields to parse the properties from
         * @return The parsed properties
         */
-       private Map<String, String> parseProperties(String prefix, SimpleFieldSet fields) {
+       private static Map<String, String> parseProperties(String prefix, SimpleFieldSet fields) {
                Map<String, String> properties = new HashMap<String, String>();
                int propertiesCounter = -1;
                while (true) {
@@ -351,14 +359,12 @@ public class WebOfTrustConnector implements ConnectorListener {
         *
         * @param fields
         *            The fields of the message
-        * @param targetMessages
-        *            The messages of the reply to wait for
         * @return The reply message
         * @throws PluginException
         *             if the request could not be sent
         */
-       private Reply performRequest(SimpleFieldSet fields, String... targetMessages) throws PluginException {
-               return performRequest(fields, null, targetMessages);
+       private Reply performRequest(SimpleFieldSet fields) throws PluginException {
+               return performRequest(fields, null);
        }
 
        /**
@@ -369,70 +375,45 @@ public class WebOfTrustConnector implements ConnectorListener {
         *            The fields of the message
         * @param data
         *            The payload of the message
-        * @param targetMessages
-        *            The messages of the reply to wait for
         * @return The reply message
         * @throws PluginException
         *             if the request could not be sent
         */
-       private Reply performRequest(SimpleFieldSet fields, Bucket data, String... targetMessages) throws PluginException {
-               @SuppressWarnings("synthetic-access")
-               Reply reply = new Reply();
-               for (String targetMessage : targetMessages) {
-                       replies.put(targetMessage, reply);
-               }
-               replies.put("Error", reply);
+       private Reply performRequest(SimpleFieldSet fields, Bucket data) throws PluginException {
+               final String identifier = "FCP-Command-" + System.currentTimeMillis() + "-" + counter.getAndIncrement();
+               final Reply reply = new Reply();
+               logger.log(Level.FINE, String.format("Sending FCP Request: %s", fields.get("Message")));
+               ConnectorListener connectorListener = new ConnectorListener() {
+
+                       @Override
+                       @SuppressWarnings("synthetic-access")
+                       public void receivedReply(PluginConnector pluginConnector, SimpleFieldSet fields, Bucket data) {
+                               String messageName = fields.get("Message");
+                               logger.log(Level.FINEST, String.format("Received Reply from Plugin: %s", messageName));
+                               synchronized (reply) {
+                                       reply.setFields(fields);
+                                       reply.setData(data);
+                                       reply.notify();
+                               }
+                       }
+               };
+               pluginConnector.addConnectorListener(WOT_PLUGIN_NAME, identifier, connectorListener);
                synchronized (reply) {
-                       pluginConnector.sendRequest(WOT_PLUGIN_NAME, PLUGIN_CONNECTION_IDENTIFIER, fields, data);
+                       pluginConnector.sendRequest(WOT_PLUGIN_NAME, identifier, fields, data);
                        try {
-                               long now = System.currentTimeMillis();
-                               while ((reply.getFields() == null) && ((System.currentTimeMillis() - now) < 60000)) {
-                                       reply.wait(60000 - (System.currentTimeMillis() - now));
-                               }
-                               if (reply.getFields() == null) {
-                                       for (String targetMessage : targetMessages) {
-                                               replies.remove(targetMessage);
-                                       }
-                                       replies.remove("Error");
-                                       throw new PluginException("Timeout waiting for " + targetMessages[0] + "!");
-                               }
+                               reply.wait();
                        } catch (InterruptedException ie1) {
-                               logger.log(Level.WARNING, "Got interrupted while waiting for reply on " + targetMessages[0] + ".", ie1);
+                               logger.log(Level.WARNING, String.format("Got interrupted while waiting for reply on %s.", fields.get("Message")), ie1);
                        }
                }
-               for (String targetMessage : targetMessages) {
-                       replies.remove(targetMessage);
-               }
-               replies.remove("Error");
-               if ((reply.getFields() != null) && reply.getFields().get("Message").equals("Error")) {
-                       throw new PluginException("Could not perform request for " + targetMessages[0]);
+               pluginConnector.removeConnectorListener(WOT_PLUGIN_NAME, identifier, connectorListener);
+               logger.log(Level.FINEST, String.format("Received FCP Response for %s: %s", fields.get("Message"), (reply.getFields() != null) ? reply.getFields().get("Message") : null));
+               if ((reply.getFields() == null) || "Error".equals(reply.getFields().get("Message"))) {
+                       throw new PluginException("Could not perform request for " + fields.get("Message"));
                }
                return reply;
        }
 
-       //
-       // INTERFACE ConnectorListener
-       //
-
-       /**
-        * {@inheritDoc}
-        */
-       @Override
-       public void receivedReply(PluginConnector pluginConnector, SimpleFieldSet fields, Bucket data) {
-               String messageName = fields.get("Message");
-               logger.log(Level.FINEST, "Received Reply from Plugin: " + messageName);
-               Reply reply = replies.remove(messageName);
-               if (reply == null) {
-                       logger.log(Level.FINE, "Not waiting for a “%s” message.", messageName);
-                       return;
-               }
-               synchronized (reply) {
-                       reply.setFields(fields);
-                       reply.setData(data);
-                       reply.notify();
-               }
-       }
-
        /**
         * Container for the data of the reply from a plugin.
         *