LocalDynamoDb.ps1

Write-Host "Installing DynamoDb..." -ForegroundColor Cyan -NoNewline
mkdir C:\DynamoDb
$dnynamoDbPath = "C:\DynamoDb"
$zipPath = "$($env:TEMP)\dynamodb_local_latest.zip"
(New-Object Net.WebClient).DownloadFile('https://s3-us-west-2.amazonaws.com/dynamodb-local/dynamodb_local_latest.zip', $zipPath)
7z x $zipPath -y -o"$dnynamoDbPath" | Out-Null
del $zipPath

#http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBLocal.html
cd $dnynamoDbPath
Set-Content -Value "java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb" -Path .\startDynamoDb.cmd
Start-Process -FilePath .\startDynamoDb.cmd
cd $env:appveyor_build_folder

$attempt = 0
$max = 3
while(!$client.Connected -and $attempt -lt $max) {
  try {    
    $client = New-Object System.Net.Sockets.TcpClient([System.Net.Sockets.AddressFamily]::InterNetwork)
    $attempt++; $client.Connect("127.0.0.1", 8000); write-host "DynamoDB started"
  }
  catch {    
    if($attempt -eq $max) {
      write-host "DynamoDB was not started"; $client.Close(); return
      }  
    [int]$sleepTime = 5*$attempt
    write-host "DynamoDB is not started. Retry after $sleepTime seconds..."
    sleep $sleepTime;
    $client.Close()        
  }  
}