Check if file is already open

Question

I need to write a custom batch File renamer. I\'ve got the bulk of it done except I can\'t figure out how to check if a file is already open. I\'m just using the java.

Answer 1

Using the Apache Commons IO library...

boolean isFileUnlocked = false;
try {
    org.apache.commons.io.FileUtils.touch(yourFile);
    isFileUnlocked = true;
} catch (IOException e) {
    isFileUnlocked = false;
}

if(isFileUnlocked){
    // Do stuff you need to do with a file that is NOT locked.
} else {
    // Do stuff you need to do with a file that IS locked
}