How Do I Create A New Folder If Size Of Current Folder Exceeds The Specified Limit

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Java

Hi All,

I am developing an application in Java. In one of my requirement, my application needs to create a folder and put excel files into it. The requirement is, suppose i have a folder and application is writing files to it and if the folder size increases spcified limit of suppose 5MB, the application needs to create new folder outside current folder, name it accordingly and start writng files into newly created folder. I have created following methods but somehow i am not able to get through this requirement.
Please help me with this. Thanks in advance!

public String createDirectories(String strDirPath){
        File newDirectory;
        boolean isDirCreated = false;
        String newFilePath;
        int fileIdx=1;
        
        if (getFolderSize(new File(strDirPath)) <= 5242880){
             newFilePath = strDirPath;
             newDirectory = new File(newFilePath);
        } else {
             newFilePath = strDirPath+"\\"+strDirPath.substring(strDirPath.lastIndexOf("\\"))+"_"+fileIdx;//rename the folder depending upon name of parentfoler_[1,2,3,...]
             newDirectory = new File(newFilePath);
             fileIdx++;
        }
        
        
        try {
                if(!newDirectory.exists()){
                    
                    isDirCreated = newDirectory.mkdirs();
                }else
                    isDirCreated = true;
                
                                                  
                      
        } catch (SecurityException se){
            JOptionPane.showMessageDialog(null, se, "AccessDenied Error: Class-FileFactory", 0);
        }
        if (isDirCreated)
            return newDirectory.getPath() ;
        else
            return null ;
                  
    }

public  long getFolderSize(File directory) {
    long length = 0;
    
    for (File file : directory.listFiles()) {
        if (file.isFile())
            length += file.length();
        else
            length += getFolderSize(file);
    }
    
    return length;
    }