close to finishing the update model

jams-common/src/main/java/net/jami/jams/common/updater/AppUpdater.java

 package net.jami.jams.common.updater;
 
+import java.security.PrivateKey;
+import java.security.cert.X509Certificate;
 import java.util.HashMap;
 
 public interface AppUpdater {
@@ -7,7 +9,7 @@ public interface AppUpdater {
     HashMap<String,FileDescription> getLocalVersions();
     HashMap<String,FileDescription> getRemoteVersions();
     boolean getUpdateAvailable();
-    void setLicense();
+    void setLicense(X509Certificate certificate, PrivateKey privateKey);
     void doUpdate();
 
 }

jams-server/src/main/java/net/jami/jams/server/licensing/LicenseService.java

@@ -57,6 +57,8 @@ public class LicenseService {
             licenseInformation = X509Utils.extractSubscriptionTypeFromCertificate(certificate);
             log.info("Server is activated with valid license: {}", Server.activated.get());
             log.info("License type: {}",licenseInformation.getType());
+            Server.appUpdater.setLicense(certificate,privateKey);
+            log.info("Successfully set license inside updater module!");
         }
         catch (Exception e){
             log.error("A generic occurred while trying to load your license or your license could not be found");

updater/src/main/java/net/jami/jams/updater/JAMSUpdater.java

@@ -7,6 +7,8 @@ import net.jami.jams.common.updater.AppUpdater;
 import net.jami.jams.common.updater.FileDescription;
 import net.jami.jams.common.utils.VersioningUtils;
 
+import java.security.PrivateKey;
+import java.security.cert.X509Certificate;
 import java.util.HashMap;
 import java.util.Timer;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -19,7 +21,11 @@ public class JAMSUpdater implements AppUpdater {
     public static final AtomicBoolean updateAvailable = new AtomicBoolean(false);
     private final AtomicBoolean doUpdate;
     private final UpdateCheckTask updateCheckTask = new UpdateCheckTask();
+    private final UpdateDownloader updateDownloader = new UpdateDownloader();
     private final Timer timer = new Timer();
+    //These get written to from the server, so we set them to volatile for visibility purposes.
+    public volatile static X509Certificate certificate;
+    public volatile static PrivateKey privateKey;
 
     public JAMSUpdater(AtomicBoolean doUpdate) {
         this.doUpdate = doUpdate;
@@ -42,19 +48,22 @@ public class JAMSUpdater implements AppUpdater {
     }
 
     @Override
-    public void setLicense() {
-        //Trigger reading the license from disk.
+    public void setLicense(X509Certificate certificate, PrivateKey privateKey) {
+        JAMSUpdater.certificate = certificate;
+        JAMSUpdater.privateKey = privateKey;
     }
 
     @Override
     public void doUpdate() {
         //Some logic here about replacing the existing files.
-
-
+        boolean res = updateDownloader.downloadFiles();
         //Notify back up-stream to the launcher that we want the update to happen.
-        doUpdate.set(true);
-        synchronized (doUpdate){
-            doUpdate.notify();
+        if(res) {
+            doUpdate.set(true);
+            synchronized (doUpdate) {
+                doUpdate.notify();
+            }
         }
+        else log.error("Could not perform update!");
     }
 }

updater/src/main/java/net/jami/jams/updater/UpdateDownloader.java

@@ -15,6 +15,11 @@ public class UpdateDownloader {
     //TODO: Download the files and dump them into a tmp folder.
     public boolean downloadFiles(){
         try {
+            //Build the SSL context here, (this is fairly simple)
+
+            //Try to download the files and store the to /tmp
+
+            //Check file checksums.
             return true;
         }
         catch (Exception e){