try to load persisted files before hashing new ones

cli/src/main/groovy/com/muwire/cli/Cli.groovy

@@ -45,6 +45,7 @@ class Cli {
         } else 
             filesList = args[0]
         
+        Thread.sleep(1000)
         println "loading shared files from $filesList"
         
         core.eventBus.register(FileHashedEvent.class, new Object() {

core/src/main/groovy/com/muwire/core/Core.groovy

@@ -199,7 +199,7 @@ public class Core {
         connectionEstablisher = new ConnectionEstablisher(eventBus, i2pConnector, props, connectionManager, hostCache)
         
         log.info("initializing hasher service")
-        hasherService = new HasherService(new FileHasher(), eventBus)
+        hasherService = new HasherService(new FileHasher(), eventBus, fileManager)
         eventBus.register(FileSharedEvent.class, hasherService)
 	}
     

core/src/main/groovy/com/muwire/core/files/HasherService.groovy

@@ -10,11 +10,13 @@ class HasherService {
 
 	final FileHasher hasher
 	final EventBus eventBus
+    final FileManager fileManager
 	Executor executor
 	
-	HasherService(FileHasher hasher, EventBus eventBus) {
+	HasherService(FileHasher hasher, EventBus eventBus, FileManager fileManager) {
 		this.hasher = hasher
 		this.eventBus = eventBus
+        this.fileManager = fileManager
 	}
 	
 	void start() {
@@ -22,6 +24,8 @@ class HasherService {
 	}
 	
 	void onFileSharedEvent(FileSharedEvent evt) {
+        if (fileManager.fileToSharedFile.containsKey(evt.file))
+            return
 		executor.execute( { -> process(evt.file) } as Runnable)
 	}
 	

core/src/main/groovy/com/muwire/core/files/PersisterService.groovy

@@ -34,7 +34,7 @@ class PersisterService extends Service {
 	}
 	
 	void start() {
-		timer.schedule({load()} as TimerTask, 1000)
+		timer.schedule({load()} as TimerTask, 1)
 	}
 	
 	void stop() {