public TestFileOpener(DataFilesInfo info, boolean startWithSourceFile) {
this.startWithSourceFile = startWithSourceFile;
OperationId opId = info.getOperationId();
TransformationId txId = page.getObject().getID();
sourceFileId = new DataFileIdentifier(opId, txId, DataFileType.SOURCE, 1, 1);
linkFileId = new DataFileIdentifier(opId, txId, DataFileType.LINK, 1, 1);
targetFileId = new DataFileIdentifier(opId, txId, DataFileType.TARGET, 1, 1);
}