Java Utililty Methods Disk Free Space Get

List of utility methods to do Disk Free Space Get

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Description

The list of methods to do Disk Free Space Get are organized into topic(s).

Method

longgetFreeSpace(File directory)
get Free Space 
return directory.getUsableSpace() / KILOBYTE;
longgetFreeSpace(File file)
get Free Space 
long free = file.getFreeSpace();
while (free == 0) {
    file = file.getParentFile();
return free;
longgetFreeSpace(String dir)
Returns the free disk space on the partition storing the given directory. 
return new File(dir).getFreeSpace();
longgetFreeSpace(String pathname)
get Free Space 
return (new File(pathname)).getUsableSpace();
longgetFreeSpaceOnPartition(File f)
Returns the free space on the partion where the specified file is located 
return f.getUsableSpace();
longgetTreeSize(File root)
get Tree Size 
long size = 0;
File files[] = root.listFiles();
if (files == null)
    return size;
for (File file : files) {
    if (file.isDirectory())
        size += getTreeSize(file);
    else
...
longgetTreeSize(File root)
Get the size of a file or a directory tree 
long size = 0;
if (root.isFile())
    size = root.length();
else {
    for (File f : root.listFiles()) {
        size += getTreeSize(f);
return size;
longgetUnixFreeSpace(String pathname)
get Unix Free Space 
try {
    String[] command = { "df", "-Pk", pathname };
    Process process = Runtime.getRuntime().exec(command);
    InputStream procOutput = process.getInputStream();
    BufferedReader reader = new BufferedReader(new InputStreamReader(procOutput));
    reader.readLine();
    String line = reader.readLine();
    String[] fields = line.split("\\s+");
...