/**
* Formats a URI by adding a forward slash and removing the last forward slash from the URI.
*
* <p>e.g. some/random/uri/ -> /some/random/uri e.g. some/random/uri -> /some/random/uri e.g.
* /some/random/uri/ -> /some/random/uri e.g. / -> / e.g. ////// -> /
*
* @param uri
* @return
*/
public static String formatUri(String uri) {
if (StringUtilities.nullSafeStartsWith(uri, "\\")) {
// windows file system
return uri;
}
if (StringUtilities.isBlank(uri) || StringUtilities.nullSafeEqualsIgnoreCase("/", uri)) {
return "/";
}
final StringBuilder externalName = new StringBuilder(uri);
if (externalName.charAt(0) != '/') {
externalName.insert(0, "/");
}
int doubleSlash = externalName.indexOf("//");
while (doubleSlash > -1) {
// removes leading '/'
externalName.replace(doubleSlash, doubleSlash + 2, "/");
doubleSlash = externalName.indexOf("//");
}
if (externalName.charAt(externalName.length() - 1) == '/' && externalName.length() != 1) {
externalName.deleteCharAt(externalName.length() - 1);
}
return externalName.toString();
}
