Java Utililty Methods URI Value Check

List of utility methods to do URI Value Check

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Description

The list of methods to do URI Value Check are organized into topic(s).

Method

booleanisAbsoluteURI(String path)
is Absolute URI 
return URI.create(path).isAbsolute();
booleanisAbsoluteURI(String uri)
This is the same logic that we have in the runtime, in PageFlowRequestProcessor. 
if (uri.length() == 0 || uri.charAt(0) == '/')
    return false;
for (int i = 0, len = uri.length(); i < len; ++i) {
    char c = uri.charAt(i);
    if (c == ':') {
        return true;
    } else if (c == '/') {
        return false;
...
booleanisAbsoluteUri(String uriAsString)
Determines whether a string is an absolute URI. 
boolean result;
try {
    URI uri = urlToUri(uriAsString);
    result = uri.isAbsolute();
} catch (Exception e) {
    result = false;
return result;
...
booleanisAnyAddress(final URI u)
is Any Address 
return u.getHost() == null && (u.getAuthority().equals("*") || u.getAuthority().startsWith("*:"));
booleanisAvailable(URI address)
is Available 
try {
    InetAddress addr = InetAddress.getByName(address.getHost());
    int port = address.getPort();
    if (port == -1) { 
        return false;
    SocketAddress sockaddr = new InetSocketAddress(addr, port);
    Socket sock = new Socket();
...
booleanisBagUri(final URI uri)
Returns true if the scheme for uri is equal to bag , otherwise it returns false. 
if (uri == null) {
    return false;
return BAG_URI_SCHEME.equals(uri.getScheme());
booleanisBase(URI base, URI uri)
is Base 
String path = uri.getRawPath();
if (path == null || "/".equals(path)) {
    return true;
if (base != null) {
    URI rel = base.relativize(uri);
    if (rel.getRawPath() == null || rel.getRawPath().length() <= 0 || rel.equals(uri)) {
        return true;
...
booleanisDefaultPort(URI uri)
Returns true if the specified URI uses a standard port (i.e. 
String scheme = uri.getScheme().toLowerCase();
int port = uri.getPort();
return port <= 0 || (port == 80 && scheme.equals("http")) || (port == 443 && scheme.equals("https"));
booleanisDirectory(URI orig)
If there is a directory at the other end of this URI return true. 
if (!orig.getScheme().equals(PROTOCOL_FILE)) {
    return false;
return new File(orig.getPath()).isDirectory();
booleanisExtensionUri(final URI uri)
is Extension Uri 
return uri.toString().startsWith(EXT_URI_PREFIX);