Image-Charts: QR Code, Create

// GraalJS Script (engine type: 2)

//////// START "main()" /////////////////////////////////////////////////////////////////

main();
function main(){ 

//// == Config Retrieving / 工程コンフィグの参照 ==
const strInput     = configs.get      ( "StrConfA1" );    /// REQUIRED
  if( strInput   === "" ){
    throw new Error( "\n AutomatedTask ConfigError:" +
                     " Config {A1} is empty \n" );
  }
let   strSaveas    = configs.get      ( "StrConfB1" );    // NotRequired
  if( strSaveas  === "" ){
    engine.log( " AutomatedTask ConfigWarning:" +
                " Config {B1:Saveas} is empty" );
  }
const filesPocket  = configs.getObject( "SelectConfB2" ); /// REQUIRED
let   strSize      = configs.get      ( "StrConfC1" );    // NotRequired
  if( strSize    === "" ){
      strSize      = "150x150";
  }


//// == Data Retrieving / ワークフローデータの参照 ==
let filesAttached = engine.findData( filesPocket ); // java.util.ArrayList
if( filesAttached === null ) {
  engine.log( " AutomatedTask FilesArray {B2}: (empty)" );
  filesAttached = new java.util.ArrayList();
}else{
  engine.log( " AutomatedTask FilesArray {B2}: " +
              filesAttached.size() + " files" );
}


//// == Calculating / 演算 ==
if( strSaveas === "" ){
  strSaveas   = processInstance.getProcessInstanceId() + ".png";
}

/// Image-charts developer hub > QR Codes
/// https://documentation.image-charts.com/qr-codes/
// request1, prepare
let request1Uri = "https://image-charts.com/chart";
let request1    = httpClient.begin(); // HttpRequestWrapper
    request1    = request1.queryParam( "chs",  strSize );
    request1    = request1.queryParam( "cht",  "qr" );
    request1    = request1.queryParam( "chl",  strInput );
    request1    = request1.queryParam( "choe", "UTF-8" );
// request1, try
const response1     = request1.post( request1Uri ); // HttpResponseWrapper
engine.log( " AutomatedTask ApiRequest1 Start: " + request1Uri );
const response1Code = response1.getStatusCode() + "";
const response1Body = response1.getResponseAsString() + "";
engine.log( " AutomatedTask ApiResponse Status: " + response1Code );
if( response1Code !== "200"){
  throw new Error( "\n AutomatedTask UnexpectedResponseError: " +
                    response1Code + "\n" + response1Body + "\n" );
}
// response1, parse
const fileTmp = new com.questetra.bpms.core.event.scripttask.NewQfile(
                 strSaveas, response1.getContentType(), response1.getResponse()
                );
filesAttached.add( fileTmp );


//// == Data Updating / ワークフローデータへの代入 ==
engine.setData( filesPocket,    filesAttached );


} //////// END "main()" /////////////////////////////////////////////////////////////////


/*
Notes:
- "{pid}.png", if not specify a file name.
- QR codes support 4 levels of error correction to enable recovery of missing, misread, or obscured data.
    - The QR code generated by this Addon can recover up to 7% data loss.
Notes-ja:
- ファイル名を指定しない場合、 {pid}.png となります。
- QRコードは、4つのレベルのエラー訂正をサポートしています（欠落、誤読、または不明瞭なデータの回復）
    - このアドオンで生成されるQRコードは、最大7％のデータ損失を回復できます。

APPENDIX-en
- To remove Image-Charts watermark (Common to Image-Charts)
    - https://documentation.image-charts.com/enterprise/#remove-image-charts-watermark-by-signing-urls
APPENDIX-ja
- Image-Charts Watermark（透かし）の削除方法（Image-Charts共通）
    - https://documentation.image-charts.com/enterprise/#remove-image-charts-watermark-by-signing-urls
*/