Added logging to Voter-Registry

Instead of using ThreadedBulletinBoardClient.
The test have been changed to use LocalBulletinBoardClient.

.gitignore

@@ -1,16 +1,20 @@
-.gradle
-.idea
-build
-bin
-.settings
-.classpath
-.project
-out
-*.iml
-*.ipr
-*.iws
-**/*.swp
-*.prefs
-*.project
-*.classpath
-bulletin-board-server/local-instances/meerkat.db
+/SQLiteDBTest.db
+/Wombat Code And Documentation Conventions
+/bulletin-board-server/trace.db/h2datasource.trace.db
+/bulletin-board-server/SQLiteDBTest.db
+.gradle
+.idea
+build
+bin
+.settings
+.classpath
+.project
+out
+*.iml
+*.ipr
+*.iws
+**/*.swp
+*.prefs
+*.project
+*.classpath
+bulletin-board-server/local-instances/meerkat.db

meerkat-common/src/main/java/meerkat/util/BulletinBoardUtils.java

@@ -1,15 +1,52 @@
 package meerkat.util;
 
-import meerkat.protobuf.BulletinBoardAPI.*;
+import meerkat.crypto.DigitalSignature;
+import meerkat.protobuf.BulletinBoardAPI.BulletinBoardMessage;
+import meerkat.protobuf.BulletinBoardAPI.UnsignedBulletinBoardMessage;
+import meerkat.protobuf.Crypto;
 
-import java.util.LinkedList;
-import java.util.List;
+import java.security.SignatureException;
+import java.util.*;
 
 /**
  * Created by Arbel Deutsch Peled on 16-Feb-16.
  */
 public class BulletinBoardUtils {
 
+    /**
+     * Creates BulletinBoardMessage with UnsignedBulletinBoardMessage and its signature
+     *         signed by all given DigitalSignatures
+     *
+     * @param unsignedMessage BasicMessage
+     * @param signer collection of DigitalSignature which will sign the
+     *                UnsignedBulletinBoardMessage message
+     * @return BulletinBoardMessage
+     */
+    public static BulletinBoardMessage signBulletinBoardMessage(UnsignedBulletinBoardMessage unsignedMessage,
+                                                                DigitalSignature signer) throws SignatureException {
+        BulletinBoardMessage.Builder bulletinBoardMessage = BulletinBoardMessage.newBuilder();
+        bulletinBoardMessage.setMsg(unsignedMessage);
+        signer.updateContent(unsignedMessage);
+        Crypto.Signature signature = signer.sign();
+        bulletinBoardMessage.addSig(signature);
+        return bulletinBoardMessage.build();
+    }
+
+    /**
+     * Gets the latest message from collection of messages (BulletinBoardMessage) based on timestamp
+     * @param messages List of BulletinBoardMessage
+     * @return BulletinBoardMessage
+     */
+    public static BulletinBoardMessage getLatestMessage(Collection<BulletinBoardMessage> messages){
+        return Collections.max(messages, new Comparator<BulletinBoardMessage>() {
+            @Override
+            public int compare(BulletinBoardMessage o1, BulletinBoardMessage o2) {
+                TimestampComparator comparator = new TimestampComparator();
+                return comparator.compare(o1.getMsg().getTimestamp(), o2.getMsg().getTimestamp());
+            }
+        });
+    }
+
     /**
      * Searches the tags in the message for one that begins with given prefix
      * @param message is the message to search
@@ -17,7 +54,6 @@ public class BulletinBoardUtils {
      * @return the tag without the prefix, if found, or null if not found
      */
     public static String findTagWithPrefix(BulletinBoardMessage message, String prefix) {
-
         for (String tag : message.getMsg().getTagList()){
             if (tag.startsWith(prefix)) {
                 return tag.substring(prefix.length());
@@ -28,6 +64,22 @@ public class BulletinBoardUtils {
 
     }
 
+
+
+    /**
+     * Gets list of tags values from given messages (tagName values)
+     * @param messages list of messages from which we want to retrieve specific tag values
+     * @return List<String>
+     */
+    public static List<String> GetListOfTags(List<BulletinBoardMessage>  messages, String tagName) {
+        List<String> tagsValues = new ArrayList<>(messages.size());
+        for ( int i = 0 ; i < messages.size() ; i++ ){
+            BulletinBoardMessage message = messages.get(i);
+            tagsValues.add(findTagWithPrefix(message, tagName));
+        }
+        return tagsValues;
+    }
+
     /**
      * Searches the tags in a message for tags that do not contain a given list of prefixes
      * @param message is the message to search

meerkat-common/src/main/java/meerkat/util/TimestampComparator.java

@@ -7,7 +7,7 @@ import java.util.Comparator;
 /**
  * Created by Arbel Deutsch Peled on 20-Feb-16.
  */
-public class TimestampComparator implements Comparator<com.google.protobuf.Timestamp> {
+public class TimestampComparator implements Comparator<Timestamp> {
 
     @Override
     public int compare(Timestamp o1, Timestamp o2) {

meerkat-common/src/main/proto/meerkat/VoterRegistry.proto

@@ -0,0 +1,23 @@
+syntax = "proto3";
+
+package meerkat;
+
+option java_package = "meerkat.protobuf";
+
+message VoterID{
+	string id = 1;
+}
+
+message VoterInfo{
+	VoterID id = 1;
+	string info = 2;
+}
+
+message GroupID{
+	string id = 1;
+}
+
+message VoterRegistryMessage{
+	VoterID voterID = 1;
+	repeated GroupID groupID = 2;
+}

settings.gradle

@@ -1,8 +1,9 @@
-include 'meerkat-common'
-include 'voting-booth'
-include 'bulletin-board-server'
-include 'polling-station'
-include 'restful-api-common'
-include 'bulletin-board-client'
-include 'distributed-key-generation'
-
+include 'meerkat-common'
+include 'voting-booth'
+include 'voter-registry'
+include 'bulletin-board-server'
+include 'polling-station'
+include 'restful-api-common'
+include 'bulletin-board-client'
+include 'distributed-key-generation'
+

voter-registry/.gitignore

@@ -0,0 +1,4 @@
+/bin/
+*.db
+/src/main/java/meerkat/manualTests.java
+/.gitignore

voter-registry/build.gradle

@@ -0,0 +1,198 @@
+
+plugins {
+  id "us.kirchmeier.capsule" version "1.0.1"
+  id 'com.google.protobuf' version '0.7.0'
+}
+
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'idea'
+
+apply plugin: 'maven-publish'
+
+// Uncomment the lines below to define an application
+// (this will also allow you to build a "fatCapsule" which includes
+// the entire application, including all dependencies in a single jar)
+//apply plugin: 'application'
+//mainClassName='your.main.ApplicationClass'
+
+
+// Is this a snapshot version?
+ext { isSnapshot = false } 
+
+ext {
+        groupId = 'org.factcenter.meerkat'
+        nexusRepository = "https://cs.idc.ac.il/nexus/content/groups/${isSnapshot ? 'unstable' : 'public'}/"
+        
+        // Credentials for IDC nexus repositories (needed only for using unstable repositories and publishing)
+        // Should be set in ${HOME}/.gradle/gradle.properties
+        nexusUser =  project.hasProperty('nexusUser') ? project.property('nexusUser') : ""
+        nexusPassword = project.hasProperty('nexusPassword') ? project.property('nexusPassword') : ""
+}
+
+description = "Meerkat Voter registry application"
+
+// Your project version
+version = "0.0"
+
+version += "${isSnapshot ? '-SNAPSHOT' : ''}"
+
+
+dependencies {
+    // Meerkat common
+    compile project(':meerkat-common')
+	compile project(':bulletin-board-client')
+
+    // Logging
+    compile 'org.slf4j:slf4j-api:1.7.7'
+    runtime 'ch.qos.logback:logback-classic:1.1.2'
+    runtime 'ch.qos.logback:logback-core:1.1.2'
+
+    // Google protobufs
+    compile 'com.google.protobuf:protobuf-java:3.+'
+
+     // Depend on test resources from meerkat-common
+    testCompile project(path: ':meerkat-common', configuration: 'testOutput')
+
+    testCompile 'junit:junit:4.+'
+
+    runtime 'org.codehaus.groovy:groovy:2.4.+'
+}
+
+
+/*==== You probably don't have to edit below this line =======*/
+
+protobuf {
+    // Configure the protoc executable
+    protoc {
+    // Download from repositories
+        artifact = 'com.google.protobuf:protoc:3.+'
+    }
+}
+
+
+idea {
+    module {
+        project.sourceSets.each { sourceSet ->
+
+            def srcDir = "${protobuf.generatedFilesBaseDir}/$sourceSet.name/java"
+
+            // add protobuf generated sources to generated source dir.
+            if ("test".equals(sourceSet.name)) {
+                testSourceDirs += file(srcDir)
+            } else {
+                sourceDirs += file(srcDir)
+            }
+            generatedSourceDirs += file(srcDir)
+
+        }
+
+        // Don't exclude build directory
+        excludeDirs -= file(buildDir)
+    }
+}
+
+/*===================================
+ *        "Fat" Build targets
+ *===================================*/
+
+
+if (project.hasProperty('mainClassName') && (mainClassName != null)) {
+
+    task mavenCapsule(type: MavenCapsule) {
+        description = "Generate a capsule jar that automatically downloads and caches dependencies when run."
+        applicationClass mainClassName
+        destinationDir = buildDir
+    }
+
+    task fatCapsule(type: FatCapsule) {
+        description = "Generate a single capsule jar containing everything. Use -Pfatmain=... to override main class"
+
+        destinationDir = buildDir
+
+        def fatMain = hasProperty('fatmain') ? fatmain : mainClassName
+
+        applicationClass fatMain
+
+        def testJar = hasProperty('test')
+
+        if (hasProperty('fatmain')) {
+            appendix = "fat-${fatMain}"
+        } else {
+            appendix = "fat"
+        }
+
+        if (testJar) {
+            from sourceSets.test.output
+        }
+    }
+}
+
+/*===================================
+ *        Repositories
+ *===================================*/
+
+repositories {
+        
+        // Prefer the local nexus repository (it may have 3rd party artifacts not found in mavenCentral)
+        maven { 
+            url nexusRepository
+            
+            if (isSnapshot) {
+                credentials { username 
+                    password 
+
+                    username nexusUser
+                    password nexusPassword 
+                }
+            }
+        }
+
+        // Use local maven repository
+        mavenLocal()
+
+        // Use 'maven central' for other dependencies.
+        mavenCentral()
+}
+
+task "info" << {
+        println "Project: ${project.name}"
+println "Description: ${project.description}"
+        println "--------------------------"
+        println "GroupId: $groupId"
+        println "Version: $version (${isSnapshot ? 'snapshot' : 'release'})"
+        println ""
+}
+info.description 'Print some information about project parameters'
+
+
+/*===================================
+ *        Publishing
+ *===================================*/
+
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            groupId project.groupId
+            pom.withXml {
+                asNode().appendNode('description', project.description)
+            }
+            from project.components.java
+
+        }
+    }
+    repositories {
+        maven {
+            url "https://cs.idc.ac.il/nexus/content/repositories/${project.isSnapshot ? 'snapshots' : 'releases'}"
+            credentials { username 
+                password 
+
+                username nexusUser
+                password nexusPassword 
+            }
+        }
+    }
+}
+
+
+

voter-registry/gradlew

@@ -0,0 +1 @@
+../gradlew

voter-registry/src/main/java/meerkat/AsyncRegistry.java

@@ -0,0 +1,129 @@
+package meerkat;
+
+import com.google.common.util.concurrent.FutureCallback;
+import meerkat.bulletinboard.SubscriptionAsyncBulletinBoardClient;
+import meerkat.crypto.DigitalSignature;
+import meerkat.protobuf.BulletinBoardAPI.UnsignedBulletinBoardMessage;
+import meerkat.protobuf.VoterRegistry.VoterID;
+import meerkat.protobuf.VoterRegistry.VoterInfo;
+import meerkat.protobuf.VoterRegistry.VoterRegistryMessage;
+import meerkat.registry.AsyncRegistryCallbacks.GetGroupsCallback;
+import meerkat.registry.AsyncRegistryCallbacks.GetVoterCallback;
+import meerkat.registry.AsyncRegistryCallbacks.HasVotedCallback;
+import meerkat.registry.MessageCollectionUtils;
+import meerkat.registry.RegistryTags;
+import meerkat.util.BulletinBoardUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.security.SignatureException;
+import java.util.ArrayList;
+import java.util.List;
+
+import static meerkat.util.BulletinBoardUtils.signBulletinBoardMessage;
+
+
+//  TODO : add ability to use DB of certificates
+
+/**
+ * Created by Vladimir Eliezer Tokarev on 1/8/2016.
+ * Gives the ability to synchronously manage voters information
+ */
+public class AsyncRegistry implements VoterRegistry{
+
+    final Logger logger = LoggerFactory.getLogger(getClass());
+
+    protected DigitalSignature signer;
+    protected SubscriptionAsyncBulletinBoardClient cachedBulletinBoardClient;
+
+    @Override
+    public void init(DigitalSignature signer, SubscriptionAsyncBulletinBoardClient communicator) {
+        logger.debug("Initialized AsyncRegistry: ", new java.util.Date().getTime());
+        this.signer = signer;
+        this.cachedBulletinBoardClient = communicator;
+    }
+
+    @Override
+    public void addVoter(VoterInfo voterInfo, FutureCallback<Boolean> callback) throws SignatureException {
+        UnsignedBulletinBoardMessage basicMessage =
+                UnsignedBulletinBoardMessage.newBuilder()
+                        .addTag(RegistryTags.ID_TAG + voterInfo.getId().getId())
+                        .addTag(RegistryTags.VOTER_ENTRY_TAG)
+                        .setData(voterInfo.toByteString())
+                        .setTimestamp(BulletinBoardUtils.getCurrentTimestampProto())
+                        .build();
+
+        cachedBulletinBoardClient.postMessage(signBulletinBoardMessage(basicMessage, signer), callback);
+        logger.debug("Added voter : ", RegistryTags.ID_TAG, new java.util.Date().getTime());
+    }
+
+    @Override
+    public void setVoterGroups(VoterRegistryMessage voterRegistryMessage, FutureCallback<Boolean> callback) throws SignatureException, IOException {
+        UnsignedBulletinBoardMessage.Builder basicMessage =
+                UnsignedBulletinBoardMessage.newBuilder()
+                        .addTag(RegistryTags.ID_TAG + voterRegistryMessage.getVoterID().getId())
+                        .addTag(RegistryTags.ADD_TO_GROUP_TAG)
+                        .setData(voterRegistryMessage.toByteString())
+                        .setTimestamp(BulletinBoardUtils.getCurrentTimestampProto());
+
+        cachedBulletinBoardClient.postMessage(signBulletinBoardMessage(basicMessage.build(), signer), callback);
+
+        logger.debug("Set voter groups to be : ", new java.util.Date().getTime());
+    }
+
+    @Override
+    public void setVoted(VoterID voterId, FutureCallback<Boolean> callback) throws SignatureException {
+        UnsignedBulletinBoardMessage basicMessage =
+                UnsignedBulletinBoardMessage.newBuilder()
+                        .addTag(RegistryTags.ID_TAG + voterId.getId())
+                        .addTag(RegistryTags.VOTE_ACTION_TAG)
+                        .setTimestamp(BulletinBoardUtils.getCurrentTimestampProto())
+                        .build();
+
+        cachedBulletinBoardClient.postMessage(signBulletinBoardMessage(basicMessage, signer), callback);
+
+        logger.debug("Next voter has voted : ", voterId.getId(), new java.util.Date().getTime());
+    }
+
+    @Override
+    public void getGroups(VoterID voterID, FutureCallback<List<meerkat.protobuf.VoterRegistry.GroupID>> callback) {
+        List<String> GroupsActionsTags = new ArrayList<String>(2) {{
+           add(RegistryTags.ADD_TO_GROUP_TAG);
+           add(RegistryTags.ID_TAG + voterID.getId());
+        }};
+
+        cachedBulletinBoardClient.readMessages(MessageCollectionUtils.generateFiltersFromTags(GroupsActionsTags, logger),
+                new GetGroupsCallback(callback));
+
+        logger.debug("Trying to retrieve next user groups : ",
+                     voterID.getId(),
+                     new java.util.Date().getTime());
+    }
+
+    @Override
+    public void getVoter(VoterID voterID, FutureCallback<VoterInfo> callback) {
+        List<String> addVoterTags = new ArrayList<String>(2) {{
+            add(RegistryTags.ID_TAG + voterID.getId());
+            add(RegistryTags.VOTER_ENTRY_TAG);
+        }};
+
+        cachedBulletinBoardClient.readMessages(MessageCollectionUtils.generateFiltersFromTags(addVoterTags, logger),
+                new GetVoterCallback(callback));
+
+        logger.debug("Trying to retrieve next user information : ", voterID.getId(), new java.util.Date().getTime());
+    }
+
+    @Override
+    public void hasVoted(VoterID voterId, FutureCallback<Boolean> callBack) {
+        List<String> setVotedTags = new ArrayList<String>(2) {{
+            add(RegistryTags.ID_TAG + voterId.getId());
+            add(RegistryTags.VOTE_ACTION_TAG);
+        }};
+
+        cachedBulletinBoardClient.readMessages(MessageCollectionUtils.generateFiltersFromTags(setVotedTags, logger),
+                new HasVotedCallback(callBack));
+
+        logger.debug("Trying to check if next has voted : ", voterId.getId(), new java.util.Date().getTime());
+    }
+}

voter-registry/src/main/java/meerkat/VoterRegistry.java

@@ -0,0 +1,91 @@
+package meerkat;
+
+import com.google.common.util.concurrent.FutureCallback;
+import meerkat.bulletinboard.SubscriptionAsyncBulletinBoardClient;
+import meerkat.crypto.DigitalSignature;
+import meerkat.protobuf.VoterRegistry.VoterID;
+import meerkat.protobuf.VoterRegistry.VoterInfo;
+import meerkat.protobuf.VoterRegistry.VoterRegistryMessage;
+
+import java.io.IOException;
+import java.security.SignatureException;
+import java.util.List;
+
+/**
+ * Created by Vladimir Eliezer Tokarev on 1/22/2016.
+ * provides voters management options
+ */
+public interface VoterRegistry {
+
+    /**
+     * Initialize the voter registry
+     * @param signer object which sign the outputed message
+     * @param communicator  the object which communicates with the BulletinBoardServer
+     */
+    void init(DigitalSignature signer, SubscriptionAsyncBulletinBoardClient communicator);
+
+    /**
+     * Adds new voter to the bulletin-board
+     *      Passes true to callback.OnSuccess if the actions succeeded else
+     *      call the onFailure method of the callback with the arisen error
+     *
+     * @param voterInfo    protobuff object that represents voter information
+     * @param callBack     when the adding voter done callback.OnSuccess will be called
+     * @throws SignatureException
+     */
+    void addVoter(VoterInfo voterInfo, FutureCallback<Boolean> callBack) throws SignatureException;
+
+    /**
+     * Adding given voter to given group
+     *        Passes the group  to callback.OnSuccess if the actions succeeded else
+     *        call the onFailure method of the callback with the arisen error
+     *
+     * @param voterRegistryMessage protobuff object that is coupling of voterId to groupId
+     * @param callBack when the adding voter done callback.OnSuccess will be called
+     * @throws SignatureException
+     * @throws IOException
+     */
+    void setVoterGroups(VoterRegistryMessage voterRegistryMessage, FutureCallback<Boolean>  callBack) throws SignatureException, IOException;
+
+    /**
+     * Sets that the voter have voted
+     *          Passes true to callback.OnSuccess if the actions succeeded else
+     *          call the onFailure method of the callback with the arisen error
+     *
+     * @param voterId  protobuff object that represent the voter that have voted
+     * @param callBack when the adding voter done callback.OnSuccess will be called
+     * @throws SignatureException
+     */
+    void setVoted(VoterID voterId, FutureCallback<Boolean>  callBack) throws SignatureException;
+
+    /**
+     * Requests all the groups that the given id voter is in
+     *         Passes wanted groups to callback.handleResult if the actions succeeded else
+     *         call the onFailure method of the callback with the arisen error
+     *
+     * @param voterID protobuff object that represent the voter
+     * @param callBack when the adding voter done callback.OnSuccess will be called
+     */
+    void getGroups(VoterID voterID, FutureCallback<List<meerkat.protobuf.VoterRegistry.GroupID>>  callBack);
+
+    /**
+     * Retrieves VoterInfo protobuff that represents voter
+     *          Passes wanted data to callback.handleResult if the actions succeeded else
+     *          call the onFailure method of the callback with the arisen error
+     *
+     * @param voterID  protobuff object that represent the voter
+     * @param callBack when the adding voter done callback.OnSuccess will be called
+     */
+    void getVoter(VoterID voterID, FutureCallback<VoterInfo>  callBack);
+
+    /**
+     * Checks if the given voter (by his id) have already voted
+     *        passes true of the voter have been voted or not else
+     *        call the onFailure method of the callback with the arisen error
+     *
+     * @param voterID   protobuff object that represent the voter
+     * @param callBack  method that will be called with the when the result will be found
+     */
+    void hasVoted(VoterID voterID, FutureCallback<Boolean>  callBack);
+}
+

voter-registry/src/main/java/meerkat/registry/AsyncRegistryCallbacks/GetGroupsCallback.java

@@ -0,0 +1,76 @@
+package meerkat.registry.AsyncRegistryCallbacks;
+
+import com.google.common.util.concurrent.FutureCallback;
+import javassist.NotFoundException;
+import meerkat.protobuf.BulletinBoardAPI.BulletinBoardMessage;
+import meerkat.protobuf.VoterRegistry;
+import meerkat.registry.RegistryTags;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.List;
+
+import static meerkat.util.BulletinBoardUtils.findTagWithPrefix;
+import static meerkat.util.BulletinBoardUtils.getLatestMessage;
+
+
+/**
+ * Created by Vladimir Eliezer on 3/12/2016.
+ * AsyncRegistry getGroups creates this callback to list of groups the voter in
+ */
+public class GetGroupsCallback implements FutureCallback<List<BulletinBoardMessage>> {
+    protected FutureCallback<List<VoterRegistry.GroupID>> callback;
+    final Logger logger = LoggerFactory.getLogger(getClass());
+
+    public GetGroupsCallback(FutureCallback<List<VoterRegistry.GroupID>> callback){
+        this.callback = callback;
+    }
+
+    /**
+     * Gets List of GroupId objects from given message
+     * @param message   BulletinBoardMessage which contains all groups ids of voter
+     * @return list of GroupId
+     * @throws IOException
+     * @throws ClassNotFoundException
+     */
+    private List<VoterRegistry.GroupID> getVoterGroups(BulletinBoardMessage message) throws IOException, ClassNotFoundException {
+        logger.debug("Initialized GetGroupsCallback : ", new java.util.Date().getTime());
+        VoterRegistry.VoterRegistryMessage voterRegistryMessage =
+                VoterRegistry.VoterRegistryMessage.parseFrom(message.getMsg().getData());
+
+        return voterRegistryMessage.getGroupIDList();
+    }
+
+
+    @Override
+    public void onSuccess(List<BulletinBoardMessage> messages) {
+        if (messages.isEmpty()){
+            callback.onFailure(new NotFoundException("Voter permissions not found in database"));
+            return;
+        }
+
+        BulletinBoardMessage message = getLatestMessage(messages);
+        try {
+
+            logger.debug("Wanted voter groups been retrieved: ",
+                         findTagWithPrefix(message, RegistryTags.ID_TAG),
+                         new java.util.Date().getTime());
+
+            callback.onSuccess(getVoterGroups(message));
+        } catch (IOException | ClassNotFoundException e) {
+            logger.error("Error occurred while trying to get voter groups ",
+                         new java.util.Date().getTime(),
+                         e);
+            callback.onFailure(e);
+        }
+    }
+
+    @Override
+    public void onFailure(Throwable t) {
+        logger.error("Error occurred while trying to get voter groups ",
+                     new java.util.Date().getTime(),
+                     t);
+        this.callback.onFailure(t);
+    }
+}

voter-registry/src/main/java/meerkat/registry/AsyncRegistryCallbacks/HasVotedCallback.java

@@ -0,0 +1,47 @@
+package meerkat.registry.AsyncRegistryCallbacks;
+
+import com.google.common.util.concurrent.FutureCallback;
+import meerkat.protobuf.BulletinBoardAPI.BulletinBoardMessage;
+import meerkat.registry.RegistryTags;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+import static meerkat.util.BulletinBoardUtils.findTagWithPrefix;
+
+
+/**
+ * Created by  Vladimir Eliezer Tokarev on 3/12/2016.
+ * AsyncRegistry hasVoted creates this callback to check if wanted user has voted
+ */
+public class HasVotedCallback implements FutureCallback<List<BulletinBoardMessage>>{
+    protected FutureCallback<Boolean> callback;
+    final Logger logger = LoggerFactory.getLogger(getClass());
+
+    public  HasVotedCallback(FutureCallback<Boolean> callback){
+        logger.debug("Initialized HasVotedCallback : ", new java.util.Date().getTime());
+        this.callback = callback;
+    }
+
+    @Override
+    public void onSuccess(List<BulletinBoardMessage> messages) {
+        if (messages.isEmpty()){
+            callback.onSuccess(false);
+            return;
+        }
+
+        logger.debug("The next voter has voted: ",
+                     findTagWithPrefix(messages.get(0), RegistryTags.ID_TAG),
+                     new java.util.Date().getTime());
+        callback.onSuccess(true);
+    }
+
+    @Override
+    public void onFailure(Throwable t) {
+        logger.error("Error occurred while trying to check if voter has voted: ",
+                     new java.util.Date().getTime(),
+                     t);
+        this.callback.onFailure(t);
+    }
+}

voter-registry/src/main/java/meerkat/registry/AsyncRegistryCallbacks/getVoterCallback.java

@@ -0,0 +1,60 @@
+package meerkat.registry.AsyncRegistryCallbacks;
+
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.protobuf.InvalidProtocolBufferException;
+import javassist.NotFoundException;
+import meerkat.protobuf.BulletinBoardAPI.BulletinBoardMessage;
+import meerkat.protobuf.VoterRegistry;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+import static meerkat.util.BulletinBoardUtils.getLatestMessage;
+
+
+/**
+ * Created by Vladimir Eliezer  on 3/12/2016.
+ * AsyncRegistry getVoter creates this callback to get voterInfo protobuff
+ */
+public class GetVoterCallback implements FutureCallback<List<BulletinBoardMessage>> {
+    protected FutureCallback<VoterRegistry.VoterInfo> callback;
+    final Logger logger = LoggerFactory.getLogger(getClass());
+
+    public GetVoterCallback(FutureCallback<VoterRegistry.VoterInfo> callback){
+        logger.debug("Initialized GetVoterCallback : ", new java.util.Date().getTime());
+        this.callback = callback;
+    }
+
+    @Override
+    public void onSuccess(List<BulletinBoardMessage> messages) {
+        if(messages.isEmpty()){
+            callback.onFailure(new NotFoundException("Voter info not found in database."));
+            return;
+        }
+        BulletinBoardMessage latestMessage = getLatestMessage(messages);
+
+        try {
+            VoterRegistry.VoterInfo info = VoterRegistry.VoterInfo.newBuilder()
+                    .mergeFrom(latestMessage.getMsg().getData()).build();
+
+            logger.debug("Wanted voter information: ", info.getId().getId(), info.getInfo(),
+                         new java.util.Date().getTime());
+
+                    callback.onSuccess(info);
+        } catch (InvalidProtocolBufferException e) {
+            logger.error("Error occurred while trying to get voter information: ",
+                    new java.util.Date().getTime(),
+                    e);
+            callback.onFailure(e);
+        }
+    }
+
+    @Override
+    public void onFailure(Throwable t) {
+        logger.error("Error occurred while trying to get voter information:",
+                new java.util.Date().getTime(),
+                t);
+        callback.onFailure(t);
+    }
+}

voter-registry/src/main/java/meerkat/registry/MessageCollectionUtils.java

@@ -0,0 +1,40 @@
+package meerkat.registry;
+
+import com.sun.deploy.util.StringUtils;
+import meerkat.protobuf.BulletinBoardAPI.FilterType;
+import meerkat.protobuf.BulletinBoardAPI.MessageFilter;
+import meerkat.protobuf.BulletinBoardAPI.MessageFilterList;
+import org.slf4j.Logger;
+
+import java.util.List;
+
+
+/**
+ * Created by Vladimir Eliezer Tokarev  on 1/15/2016.
+ * adds extra functionality to Messages collections
+ */
+public abstract class MessageCollectionUtils {
+    /**
+     * Creates list of filters based on given list of strings (that are tags)
+     *
+     * @param logger logger object with debug method
+     * @param tags the tags based on which the messages will be filtered
+     * @return MessageFilterList.
+     */
+    public static MessageFilterList generateFiltersFromTags(List<String> tags, Logger logger) {
+        if (tags == null){
+            return MessageFilterList.getDefaultInstance();
+        }
+
+        MessageFilterList.Builder filters = MessageFilterList.newBuilder();
+
+        for (String tag : tags) {
+            MessageFilter filter = MessageFilter.newBuilder().setTag(tag).setType(FilterType.TAG).build();
+            filters.addFilter(filter);
+        }
+
+        logger.debug("Converted next strings to filters", StringUtils.join(tags, " "));
+
+        return filters.build();
+    }
+}

voter-registry/src/main/java/meerkat/registry/RegistryTags.java

@@ -0,0 +1,18 @@
+package meerkat.registry;
+
+
+/**
+ * Created by Vladimir Eliezer Tokarev  on 1/9/2016.
+ * Have the tags for the registry messages
+ */
+public interface RegistryTags {
+    public static final String ID_TAG = "ID: ";
+    public static final String VOTER_ENTRY_TAG = "VoterEntry: ";
+    public static final String GROUP_ID_TAG = "GroupID: ";
+    public static final String ADD_TO_GROUP_TAG = "setVoterGroups: ";
+    public static final String VOTE_ACTION_TAG = "VoteAction: ";
+}
+
+
+
+

voter-registry/src/test/java/SimpleRegistryTest.java

@@ -0,0 +1,508 @@
+import com.google.common.util.concurrent.FutureCallback;
+import meerkat.AsyncRegistry;
+import meerkat.bulletinboard.BulletinBoardServer;
+import meerkat.bulletinboard.LocalBulletinBoardClient;
+import meerkat.bulletinboard.sqlserver.BulletinBoardSQLServer;
+import meerkat.bulletinboard.sqlserver.H2QueryProvider;
+import meerkat.comm.CommunicationException;
+import meerkat.crypto.DigitalSignature;
+import meerkat.crypto.concrete.ECDSASignature;
+import meerkat.protobuf.BulletinBoardAPI.BulletinBoardMessage;
+import meerkat.protobuf.BulletinBoardAPI.MessageFilterList;
+import meerkat.protobuf.VoterRegistry;
+import meerkat.protobuf.VoterRegistry.GroupID;
+import meerkat.protobuf.VoterRegistry.VoterID;
+import meerkat.protobuf.VoterRegistry.VoterInfo;
+import meerkat.registry.MessageCollectionUtils;
+import meerkat.registry.RegistryTags;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.math.BigInteger;
+import java.security.KeyStore;
+import java.security.SecureRandom;
+import java.security.SignatureException;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.concurrent.Semaphore;
+
+import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertTrue;
+import static meerkat.util.BulletinBoardUtils.*;
+
+/**
+ * TODO: add logs prints for the tests to be clear what they are
+ */
+
+/**
+ * Created by Vladimir Eliezer Tokarev on 1/16/2016.
+ * Tests the Simple registry contents
+ * NOTE: for most of this tests to pass there should run BulletinBoardServer
+ * that should be reachable on BULLETIN_BOARD_SERVER_ADDRESS
+ */
+public class SimpleRegistryTest {
+
+    private DigitalSignature signer;
+    private LocalBulletinBoardClient localBulletinBoardClient;
+    private SecureRandom random = new SecureRandom();
+    Semaphore jobSemaphore;
+
+    public static String KEYFILE_EXAMPLE = "/certs/enduser-certs/user1-key-with-password-secret.p12";
+    public static String CERT1_PEM_EXAMPLE = "/certs/enduser-certs/user1.crt";
+    public static String KEYFILE_PASSWORD = "secret";
+    private static final String DB_NAME = "TestDB";
+    private static final int SUBSCRIPTION_DELAY = 3000;
+    private static final int THREAD_NUM = 3;
+    final Logger logger = LoggerFactory.getLogger(getClass());
+
+    class DummyRegistryCallBackHandler<T> implements FutureCallback<T>{
+        public int counter;
+        public T data;
+
+        public DummyRegistryCallBackHandler()
+        {
+            counter=0;
+        }
+
+        @Override
+        public void onSuccess(T result) {
+            counter++;
+            data = result;
+            jobSemaphore.release();
+        }
+
+        @Override
+        public void onFailure(Throwable throwable) {
+            System.out.print(throwable.toString());
+        }
+    }
+
+    public class DummyBulletinBoardCallBackHandler implements FutureCallback<List<BulletinBoardMessage>> {
+        public  List<BulletinBoardMessage> messages;
+
+        @Override
+        public void onSuccess(List<BulletinBoardMessage> msg)
+        {
+            messages = msg;
+            jobSemaphore.release();
+        }
+
+        @Override
+        public void onFailure(Throwable t){
+            messages = null;
+            jobSemaphore.release();
+        }
+    }
+
+    /**
+     * Creates LocalBulletinBoardClient which connects to TestDB
+     * @return LocalBulletinBoardClient object
+     * @throws CommunicationException
+     */
+    private LocalBulletinBoardClient CreateLocalBulletinBoardClient() throws CommunicationException, SQLException {
+        H2QueryProvider queryProvider = new H2QueryProvider(DB_NAME) ;
+
+        Connection conn = queryProvider.getDataSource().getConnection();
+        Statement stmt = conn.createStatement();
+
+        List<String> deletionQueries = queryProvider.getSchemaDeletionCommands();
+
+        for (String deletionQuery : deletionQueries) {
+            stmt.execute(deletionQuery);
+        }
+
+        BulletinBoardServer server = new BulletinBoardSQLServer(queryProvider);
+        server.init(DB_NAME);
+
+        logger.debug("Created new LocalBulletinBoardClient: {}", new Date());
+
+        return new LocalBulletinBoardClient(server, THREAD_NUM, SUBSCRIPTION_DELAY);
+    }
+
+    /**
+     * Initialize CachedBulletinBoardClient client that communicates with LocalBulletinBoardClient
+     * @throws InstantiationException
+     * @throws IllegalAccessException
+     * @throws CommunicationException
+     * @throws SQLException
+     */
+    private void CommunicatorSetup() throws InstantiationException, IllegalAccessException, CommunicationException, SQLException {
+        localBulletinBoardClient = CreateLocalBulletinBoardClient();
+    }
+
+    /**
+     * Sets the signer to be instance of ECDSASignature
+     */
+    private void SetSigner(){
+        try {
+            ECDSASignature signer = new ECDSASignature();
+            InputStream keyStream = getClass().getResourceAsStream(KEYFILE_EXAMPLE);
+            char[] password = KEYFILE_PASSWORD.toCharArray();
+
+            KeyStore.Builder keyStore = signer.getPKCS12KeyStoreBuilder(keyStream, password);
+            signer.loadSigningCertificate(keyStore);
+            signer.loadVerificationCertificates(getClass().getResourceAsStream(CERT1_PEM_EXAMPLE));
+
+            keyStream.close();
+            this.signer = signer;
+            logger.info("Have set new signer: {}", new Date());
+        }
+        catch (Exception e){
+            assert false : "The signers creation failed ";
+        }
+    }
+
+    /**
+     * Initializes the needed params for all the tests
+     * @throws SQLException
+     * @throws InstantiationException
+     * @throws CommunicationException
+     * @throws IllegalAccessException
+     */
+    @Before
+    public void setUp() throws SQLException, InstantiationException, CommunicationException, IllegalAccessException {
+        SetSigner();
+        CommunicatorSetup();
+        jobSemaphore = new Semaphore(0);
+        logger.info("Ended the setup preparations: {}", new Date());
+    }
+
+    private AsyncRegistry GetRegistry()
+    {
+        AsyncRegistry registry = new AsyncRegistry();
+        registry.init(signer, localBulletinBoardClient);
+        logger.info("Created new AsyncRegistry: {}", new Date());
+        return registry;
+    }
+
+    /**
+     * Generates random string 32 chars length
+     * @return String object
+     */
+    private String generateString()
+    {
+        return new BigInteger(130, random).toString(32);
+    }
+
+    /**
+     * Checks if the creation of the registry have been successful
+     */
+    @Test
+    public void simpleRegistryCreation() {
+        try {
+            logger.info("Testing registry creation: {}", new Date());
+            GetRegistry();
+            logger.info("Registry creation succeed: {} \n\n", new Date());
+        } catch (Exception e) {
+            assert false : "While creating the registry exception have been thrown " + e;
+        }
+    }
+
+    /**
+     * Counts the amount of messages from messages that have all the wanted tags inside
+     * @param messages  List<VoterRegistryMessage>
+     * @param tags  List<RegistryTags>
+     * @return  integer that represent the amount of messages with wanted tags
+     */
+    private int countMessagesWithTags(List<BulletinBoardMessage> messages, List<String> tags)
+    {
+        int counter = 0 ;
+
+        for (BulletinBoardMessage message : messages) {
+            int wantedTagsCounter = 0;
+
+            for (String tag : tags) {
+                if(findTagWithPrefix(message, tag)!=null){
+                    wantedTagsCounter++;
+                }
+            }
+
+            if(wantedTagsCounter == tags.size())
+            {
+                counter++;
+            }
+        }
+        logger.info("Counted {} messages with all wanted tags from {} given messages: {}",
+                    counter,
+                    messages.size(),
+                    new Date());
+        return counter;
+    }
+
+    /**
+     * Reads messages from localBulletinBoardClient by given tags and return the callback handler
+     *       object
+     *
+     * @param tags list of strings that represents tags
+     * @return DummyBulletinBoardCallBackHandler which method will be called
+     */
+    private DummyBulletinBoardCallBackHandler readMessagesByTags(List<String> tags)
+    {
+        MessageFilterList filters = MessageCollectionUtils.generateFiltersFromTags(tags, logger);
+        DummyBulletinBoardCallBackHandler bulletinHandler = new DummyBulletinBoardCallBackHandler();
+        localBulletinBoardClient.readMessages(filters, bulletinHandler);
+        return bulletinHandler;
+    }
+
+    /**
+     * Test that add voter creates new correct bulletin board message and adds the voter
+     */
+    @Test
+    public void testAddVoter() throws InterruptedException, SignatureException {
+        logger.info("Testing registry adding voter functionality: {}", new Date());
+
+        DummyRegistryCallBackHandler<Boolean> handler = new DummyRegistryCallBackHandler<>();
+
+        String id = generateString();
+        String data = generateString();
+        VoterInfo voterInfo = VoterInfo.newBuilder().setId(VoterID.newBuilder().setId(id)).setInfo(data).build();
+
+        AsyncRegistry registry = GetRegistry();
+        registry.addVoter(voterInfo, handler);
+        logger.info("Tried to add next voter to registry: id: {} {}",
+                      voterInfo.getId().getId(),
+                      new Date());
+
+        jobSemaphore.acquire();
+        assertEquals(1, handler.counter );
+
+        List<String> tags = new ArrayList<String>(){{ add(RegistryTags.VOTER_ENTRY_TAG);}};
+        DummyBulletinBoardCallBackHandler bulletinHandler = readMessagesByTags(tags);
+
+
+        jobSemaphore.acquire();
+        logger.info("Got add voter messages that have been added lately to the server: {} {}",
+                     GetListOfTags(bulletinHandler.messages, RegistryTags.ID_TAG),
+                     new Date());
+
+        tags.clear();
+        tags.add(RegistryTags.ID_TAG + id);
+
+        int counter = countMessagesWithTags(bulletinHandler.messages, tags);
+        assert counter == 1 : "The server don't have the new user data.";
+        logger.info("The server had a message with voter data: id: {} data: {} {}", id, data, new Date());
+        logger.info("Ended testing registry adding voter functionality: {}\n\n", new Date());
+    }
+
+    /**
+     * Test that set voted posts creates correct bulletin board message and sets that the user have been voted
+     */
+    @Test
+    public void testSetVoted() throws InterruptedException, SignatureException {
+        logger.info("Testing registry set voted functionality: {}", new Date());
+        DummyRegistryCallBackHandler<Boolean> handler = new  DummyRegistryCallBackHandler<>();
+
+        String id = generateString();
+        VoterID voterInfo = VoterID.newBuilder().setId(id).build();
+
+        AsyncRegistry registry = GetRegistry();
+        registry.setVoted(voterInfo, handler);
+        logger.info("Tried to set that next voter voted : id: {} {}",
+                     voterInfo.getId(),
+                     new Date());
+
+        jobSemaphore.acquire();
+        assertEquals(1, handler.counter );
+
+        List<String> tags = new ArrayList<String>(){{ add(RegistryTags.VOTE_ACTION_TAG);}};
+        DummyBulletinBoardCallBackHandler bulletinHandler = readMessagesByTags(tags);
+
+        jobSemaphore.acquire();
+        logger.info("Got set voted messages that have been added lately to the server: {} {} ",
+                GetListOfTags(bulletinHandler.messages, RegistryTags.ID_TAG),
+                new Date());
+
+        tags.clear();
+        tags.add(RegistryTags.ID_TAG + id);
+
+        int counter = countMessagesWithTags(bulletinHandler.messages, tags);
+        assert counter == 1 : "The server don't have the new user id.";
+        logger.info("The server had a message with voter data: id: {} {}", id, new Date());
+        logger.info("Ended testing registry set voted functionality: {}\n\n", new Date());
+    }
+
+    /**
+     * Test that get groups retrieves the right groups the user are in
+     */
+    @Test
+    public void testSetVoterGroups() throws InterruptedException, SignatureException, IOException, ClassNotFoundException {
+        logger.info("Testing registry set voter groups functionality: {}", new Date());
+
+        DummyRegistryCallBackHandler<Boolean> handler = new  DummyRegistryCallBackHandler<>();
+
+        String voterId = generateString();
+        String groupId1 = generateString();
+        VoterRegistry.VoterRegistryMessage voterInfo = VoterRegistry.VoterRegistryMessage.newBuilder()
+                .setVoterID(VoterID.newBuilder().setId(voterId))
+                .addGroupID(GroupID.newBuilder().setId(groupId1)).build();
+
+        AsyncRegistry registry = GetRegistry();
+        registry.setVoterGroups(voterInfo, handler);
+        logger.info("Tried to set voter groups : id: {} groupId: {} {}",
+                voterId,
+                groupId1,
+                new Date());
+
+        jobSemaphore.acquire();
+        assertEquals("The callback handler hasn't been called yet", 1, handler.counter);
+
+        List<String> tags = new ArrayList<String>(){{add(RegistryTags.ADD_TO_GROUP_TAG);
+        add(RegistryTags.ID_TAG + voterId);}};
+        DummyBulletinBoardCallBackHandler bulletinHandler = readMessagesByTags(tags);
+
+        jobSemaphore.acquire();
+        logger.info("Got set voter groups messages that have been added lately to the server: {} {} ",
+                GetListOfTags(bulletinHandler.messages, RegistryTags.ID_TAG),
+                new Date());
+
+        BulletinBoardMessage latestMessage = getLatestMessage(bulletinHandler.messages);
+
+        assert findTagWithPrefix(latestMessage, RegistryTags.ID_TAG).equals(voterId) :
+                "The latest message recieved is not of our voter";
+
+        logger.info("The server had a message of our voter, data: id: {} {}",
+                    findTagWithPrefix(latestMessage, RegistryTags.ID_TAG), new Date());
+
+        VoterRegistry.VoterRegistryMessage voterRegistryMessage =
+                VoterRegistry.VoterRegistryMessage.parseFrom(latestMessage.getMsg().getData());
+
+        List<GroupID> groupsIds = voterRegistryMessage.getGroupIDList();
+
+        assert groupsIds.get(0).getId().equals(groupId1) : "The latest message doesn't have the voter group";
+        logger.info("The server had a message with voter data: groupId: {} {}",
+                    groupsIds.get(0).getId(), new Date());
+        logger.info("Ended testing registry set voter groups functionality: {}\n\n", new Date());
+    }
+
+    /**
+     * Test that remove from group creates correct bulletin board message and removes the user from a group
+     */
+    @Test
+    public void testGetGroups() throws InterruptedException, SignatureException, IOException {
+        logger.info("Testing registry get voter groups functionality: {}", new Date());
+        DummyRegistryCallBackHandler<Boolean> handler =
+                new  DummyRegistryCallBackHandler<>();
+
+        String voterId = generateString();
+        String groupId1 = generateString();
+        String groupId2 = generateString();
+        VoterRegistry.VoterRegistryMessage voterInfo = VoterRegistry.VoterRegistryMessage.newBuilder()
+                .setVoterID(VoterID.newBuilder().setId(voterId))
+                .addGroupID(GroupID.newBuilder().setId(groupId1))
+                .addGroupID(GroupID.newBuilder().setId(groupId2)).build();
+
+        AsyncRegistry registry = GetRegistry();
+        registry.setVoterGroups(voterInfo, handler);
+        logger.info("Tried to set voter groups : id: {} groupId 1: {}  groupId 2: {} {}",
+                    voterId,
+                    groupId1,
+                    groupId2,
+                    new Date());
+
+        jobSemaphore.acquire();
+        assertEquals("The callback handler hasn't been called yet", 1, handler.counter );
+
+        DummyRegistryCallBackHandler<List<GroupID>> groupsHandler = new DummyRegistryCallBackHandler<>();
+        registry.getGroups(VoterID.newBuilder().setId(voterId).build(), groupsHandler);
+
+        jobSemaphore.acquire(1);
+        List<GroupID> userGroups = groupsHandler.data;
+
+        logger.info("Got get voter groups messages that have been added lately to the server: {}",
+                new Date());
+
+        assert userGroups.contains(GroupID.newBuilder().setId(groupId1).build()) :
+                "The simple voter registry object does not retrieved the first user groups";
+
+        assert userGroups.contains(GroupID.newBuilder().setId(groupId2).build()) :
+                "The simple voter registry object does not retrieved the second user groups";
+
+        logger.info("The server had a message with wanted data: groupId 1: {} groupId 2: {} {}",
+                groupId1, groupId2, new Date());
+        logger.info("Ended testing registry get voter groups functionality: {}\n\n", new Date());
+    }
+
+    /**
+      * Test that the personal data outputted about the user is right
+      */
+    @Test
+    public void testGetVoter() throws InterruptedException, SignatureException {
+        logger.info("Testing registry get voter groups functionality: {}", new Date());
+        DummyRegistryCallBackHandler<Boolean> handler =
+                new DummyRegistryCallBackHandler<>();
+
+        String id = generateString();
+        String data = generateString();
+        VoterInfo voterInfo = VoterInfo.newBuilder().
+                setId(VoterID.newBuilder().setId(id)).setInfo(data).build();
+
+        AsyncRegistry registry = GetRegistry();
+        registry.addVoter(voterInfo, handler);
+
+        logger.info("Tried to get voter with data: id: {} groupId 1: {}  groupId 2: {} {}",
+                    id, data, new Date());
+
+        jobSemaphore.acquire();
+        assertEquals("The callback handler hasn't been called yet", 1, handler.counter );
+
+        DummyRegistryCallBackHandler<VoterInfo> personalHandler = new DummyRegistryCallBackHandler<>();
+        registry.getVoter(VoterID.newBuilder().setId(id).build(), personalHandler);
+
+        jobSemaphore.acquire(1);
+
+        logger.info("Got get voter messages that have been added lately to the server: {} {}",
+                personalHandler.data.getId(),
+                new Date());
+
+        assertEquals("The voter id doesn't match the created on ",
+                id, personalHandler.data.getId().getId());
+        String personalData = personalHandler.data.getInfo();
+        assertTrue("The voter personal data can't be found.",  data.equals(personalData));
+
+        logger.info("The server had a message with wanted data: if: {} personal data: {} {}",
+                    personalHandler.data.getId().getId(), personalData, new Date());
+        logger.info("Ended testing registry get voter functionality: {}\n\n", new Date());
+    }
+
+    /**
+     * Tests that the hasVoted method of registry works
+     * @throws InterruptedException
+     */
+    @Test
+    public void  testHasVoted () throws InterruptedException, SignatureException {
+        logger.info("Testing registry has voted functionality: {}", new Date());
+
+        DummyRegistryCallBackHandler<Boolean> handler = new DummyRegistryCallBackHandler<>();
+        String id = generateString();
+        VoterID voterInfo = VoterID.newBuilder().setId(id).build();
+
+        AsyncRegistry registry = GetRegistry();
+        registry.setVoted(voterInfo, handler);
+
+        logger.info("Tried to set voted with data: id: {} groupId 1: {} {}",
+                id, new Date());
+
+        jobSemaphore.acquire();
+        assertEquals("The callback handler hasn't been called yet", 1, handler.counter);
+        DummyRegistryCallBackHandler<Boolean> personalHandler = new DummyRegistryCallBackHandler<>();
+        registry.hasVoted(VoterID.newBuilder().setId(id).build(), personalHandler);
+
+        jobSemaphore.acquire(1);
+
+        logger.info("Got has voted messages that have been added lately to the server: {} {}",
+                personalHandler.data,
+                new Date());
+        assertTrue("The voter hasn't voted yet.", personalHandler.data);
+
+        logger.info("Ended testing registry has voted functionality: {}\n\n", new Date());
+    }
+}
+