/**
* ** Returns true if the specified character should be hex-encoded in a URL ** @param ch The
* character to test ** @return True if the specified character should be hex-encoded in a URL
*/
private static boolean shouldEncodeArgChar(char ch) {
if (Character.isLetterOrDigit(ch)) {
return false;
} else if ((ch == '_') || (ch == '-') || (ch == '.')) {
return false;
} else {
return true;
}
}
/**
* ** Returns true if the URL starts with a protocol definition (ie. "http://...") ** @param url
* The URL to test ** @return True if the URL starts with a protocol definition
*/
public static boolean isAbsoluteURL(String url) {
if (url == null) {
return false;
} else {
// per "http://en.wikipedia.org/wiki/URI_scheme" all URL "schemes" contain only
// alphanumeric or "." characters, and appears to be < 16 characters in length.
for (int i = 0; (i < 16) && (i < url.length()); i++) {
char ch = url.charAt(i);
if (ch == ':') {
return true; // A colon is the first non-alphanumeric we ran in to
} else if (!Character.isLetterOrDigit(ch) && (ch != '.')) {
return false;
}
}
return false;
}
}