Java Utililty Methods Path Relative

List of utility methods to do Path Relative

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Description

The list of methods to do Path Relative are organized into topic(s).

Method

StringgetRelativeFileName(String filePath, String directoryPath)
get Relative File Name 
String relativeFileName = filePath;
if (directoryPath != null) {
    relativeFileName = filePath.substring(directoryPath.length());
    if (relativeFileName.startsWith(File.separator))
        relativeFileName = relativeFileName.substring(1);
return relativeFileName;
FilegetRelativeFilePath(File absolutePath, File reference)
get Relative File Path 
File relativePath = absolutePath;
if (absolutePath.getAbsolutePath().contains(reference.getAbsolutePath())) {
    relativePath = new File(
            absolutePath.getAbsolutePath().substring(reference.getAbsolutePath().length() + 1));
return relativePath;
StringgetRelativeFilePath(String filePath, String relativePathPrefix)
Get relative path that follows relativePathPrefix . 
int prefixIndex = filePath.indexOf(relativePathPrefix);
if (prefixIndex == -1)
    return filePath;
int relativePathStartIndex = prefixIndex + relativePathPrefix.length() + 1;
return filePath.substring(relativePathStartIndex);
FilegetRelativeLastModifiedTimeFile()
get Relative Last Modified Time File 
return new File(LAST_MODIFIED_FILE_NAME);
StringgetRelativeLink(File target, File base)
Returns the path of one File relative to another. 
if (base == null) {
    return getFullPath(target);
} else {
    return getRelativePath(target, base);
StringgetRelativeName(File file, File root)
Strips off the part of the path before the start of the root file. 
int length = root.getAbsolutePath().length();
String absolutePath = file.getAbsolutePath();
String relativePath;
if (absolutePath.length() == length) {
    if (file.getAbsolutePath().equals(root.getAbsolutePath())) {
        relativePath = "";
    } else {
        throw new RuntimeException(
...
StringgetRelativeName(final File directory, final File file)
get Relative Name 
final String name = directory.toURI().relativize(file.toURI()).getPath();
if (file.isDirectory()) {
    return name.endsWith("/") ? name : name + "/";
return name;
StringgetRelativeName(final File file)
Strips the leading path up to "config". 
String absName = file.getAbsolutePath();
int inx = absName.indexOf("config");
if (inx != -1) {
    return absName.substring(inx, absName.length());
return null;
StringgetRelativeParentDirectory(File base, File file)
get Relative Parent Directory 
return getRelativePath(base, new File(getAbsoluteParentDirectory(file)));
StringgetRelativeTemporaryFilename(String directory, String suffix, boolean autodelete)
get Relative Temporary Filename 
int num = Math.abs(rng.nextInt());
File f = new File(directory + File.separator + String.format("%06d.%s", num, suffix));
while (f.exists()) {
    num = Math.abs(rng.nextInt());
    f = new File(directory + File.separator + String.format("%06d.%s", num, suffix));
f.createNewFile();
if (autodelete)
...