Added setup for download file demo

chord/daemons.go

@@ -108,6 +108,7 @@ func CheckPredecessorDaemon(chordNode *ChordNode) {
 	// transfer keys from the predecessor that have ID higher than
 	// predecessor's ID
 	err = chordNode.stubTransferKeys(ipAddr(pred.Ip), ctx, pred.Id, chordNode.node)
-
-	log.WithField("err", err).Info("check predecessor daemon failed")
+	if err != nil {
+		log.WithField("err", err).Info("check predecessor daemon failed")
+	}
 }

chord/fileSharingServerImpl.go

@@ -26,8 +26,6 @@ func (chordNode *ChordNode) TransferFile(fileInfo *FileInfo, stream FileShareSer
 	if !fileExist(filePath) {
 		fmt.Println(fmt.Sprintf("File [%v] does not exist", filePath))
 		return nil // Do not stop the server
-	} else {
-		fmt.Println(fmt.Sprintf("File [%v] does exist", filePath))
 	}
 
 	file, err := os.Open(filePath)

tests/demo_downloadFile.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+
+# Test the FileSharing service and client interaction
+cd ..
+
+go build
+
+# Removed current file1.txt for fair results
+rm _download/file1.txt
+
+xterm -title "Node A " -hold -e "./CS438_Project -name A -ipAddr=127.0.0.1:5000 -create -m 8" &
+xterm -title "Node B " -hold -e "./CS438_Project -name B -ipAddr=127.0.0.1:10001 -join -existingNodeIp 127.0.0.1:5000 -existingNodeId db -m 8" &
+xterm -title "Node C " -hold -e "./CS438_Project -name C -ipAddr=127.0.0.1:10002 -join -existingNodeIp 127.0.0.1:5000 -existingNodeId db -m 8 -v" &
+xterm -title "Node D " -hold -e "./CS438_Project -name D -ipAddr=127.0.0.1:10003 -join -existingNodeIp 127.0.0.1:5000 -existingNodeId db -m 8" &
+xterm -title "Node E " -hold -e "./CS438_Project -name E -ipAddr=127.0.0.1:10004 -join -existingNodeIp 127.0.0.1:5000 -existingNodeId db -m 8" &
+
+sleep 15
+cd client
+go build
+./client -PeersterAddress=127.0.0.1:10004 -command=download -file=file1.txt -nameToStore=file1.txt -ID="db"
+cd ..
+echo "Diference between uploaded and downloaded:"
+diff _upload/file1.txt _download/file1.txt
+
+# Go back to tests
+cd tests