createTmpFile()

Function that creates a file with a unique name in the temporary work folder and returns a file object. This file stores data temporarily in memory or in a buffer. It is used to prevent multiple input/output access to a physical file when writing. In the end, the contents are transferred to a physical file for which only a single input/output access will occur.

Example

In the following script, the contents of the data sample file are copied in uppercase to a temporary file.

try{
// Open a reader
var reader = openTextReader(data.filename);
// Create a temporary file
var tmpFile = createTmpFile();
// Open a writer on the temporary file
var writer = openTextWriter(tmpFile.getPath());
try{
var line = null; // Current line
/* read line by line and readLine will return null at the end of the file */
while( (line = reader.readLine()) != null ){
// Edit the line
line = line.toUpperCase();
// Write the result in the temporary file
writer.write(line);
// add a new line
writer.newLine();
}
}
finally{
// Close the writer of the temporary file
writer.close();
}
}
finally{
// Close the reader
reader.close();
}
deleteFile(data.filename);
tmpFile.move(data.filename);
 
  • Last Topic Update: 28, June, 2017 03:50 AM
  • Last Published: 23, May, 2019 01:55 PM