Java Utililty Methods HTTP Port Find

List of utility methods to do HTTP Port Find

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Description

The list of methods to do HTTP Port Find are organized into topic(s).

Method

booleanisPortAvailable(String host, int port)
Is the specified port available? 
try {
    (new Socket(host, port)).close();
    return true;
} catch (IOException e) {
    return false;
booleanisPortAvailable(String host, int port)
is Port Available 
if (host != null) {
    try {
        new ServerSocket(port, 50, InetAddress.getByName(host)).close();
        return true;
    } catch (Exception e) {
} else {
    try {
...
booleanisPortAvailable(String hostname, int port)
Checks whether the supplied port is available on the specified address. 
ServerSocket socket;
try {
    socket = new ServerSocket();
} catch (IOException e) {
    throw new IllegalStateException("Unable to create ServerSocket.", e);
try {
    InetSocketAddress sa = new InetSocketAddress(hostname, port);
...
booleanisPortAvailable(String hostname, int port)
Checks to see if a port/hostname combo is available through opening a socked and closing it again 
if (port == -1)
    return false;
try {
    ServerSocket socket = new ServerSocket();
    socket.bind(hostname == null || hostname.length() == 0 ? new InetSocketAddress(port)
            : new InetSocketAddress(hostname, port));
    socket.close();
    return true;
...
booleanisPortAvailable(String hostName, int port)
is Port Available 
InetSocketAddress socketAddress = null;
if (hostName == null || "".equals(hostName) || "*".equals(hostName)) {
    socketAddress = new InetSocketAddress(port);
} else {
    socketAddress = new InetSocketAddress(hostName, port);
ServerSocket serverSocket = null;
try {
...
booleanisPortAvailable(String portNumber)
Function to check if a port is available 
final int port = Integer.parseInt(portNumber);
ServerSocket ss = null;
try {
    ss = new ServerSocket(port);
    ss.setReuseAddress(true);
    return true;
} catch (IOException e) {
} finally {
...
booleanisPortBound(int port)
is Port Bound 
try (ServerSocket socket = new ServerSocket(port)) {
    socket.getClass(); 
    return false;
} catch (IOException ex) {
    return true;
booleanisPortFree(int port)
is Port Free 
try {
    Socket socket = new Socket("localhost", port);
    socket.close();
    return false;
} catch (ConnectException e) {
    return true;
} catch (SocketException e) {
    if (e.getMessage().equals("Connection reset by peer")) {
...
booleanisPortFree(int port)
Check and log is a given port is available 
boolean portIsFree = true;
ServerSocket server = null;
try {
    server = new ServerSocket(port);
} catch (IOException e) {
    portIsFree = false;
} finally {
    if (server != null) {
...
booleanisPortFree(int portNumber)
Checks to see if the port is available. 
try {
    Socket echoSocket = new Socket("localhost", portNumber);
    echoSocket.close();
    return false;
} catch (UnknownHostException e) {
    return true;
} catch (IOException e) {
    return true;
...