org.h2.util

Class NetUtils

java.lang.Object

org.h2.util.NetUtils

public class NetUtils
extends Object

This utility class contains socket helper functions.

Method Summary

Methods

Modifier and Type	Method and Description
static ServerSocket	closeSilently(ServerSocket socket) Close a server socket and ignore any exceptions.
static Socket	createLoopbackSocket(int port, boolean ssl) Create a loopback socket (a socket that is connected to localhost) on this port.
static ServerSocket	createServerSocket(int port, boolean ssl) Create a server socket.
static Socket	createSocket(InetAddress address, int port, boolean ssl) Create a client socket that is connected to the given address and port.
static Socket	createSocket(String server, int defaultPort, boolean ssl) Create a client socket that is connected to the given address and port.
static String	getLocalAddress() Get the local host address as a string.
static boolean	isLocalAddress(Socket socket) Check if a socket is connected to a local address.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createLoopbackSocket

public static Socket createLoopbackSocket(int port,
                          boolean ssl)
                                   throws IOException

Create a loopback socket (a socket that is connected to localhost) on this port.

Parameters:

port - the port

ssl - if SSL should be used

Returns:

the socket

Throws:

IOException

createSocket

public static Socket createSocket(String server,
                  int defaultPort,
                  boolean ssl)
                           throws IOException

Create a client socket that is connected to the given address and port.

Parameters:

server - to connect to (including an optional port)

defaultPort - the default port (if not specified in the server address)

ssl - if SSL should be used

Returns:

the socket

Throws:

IOException

createSocket

public static Socket createSocket(InetAddress address,
                  int port,
                  boolean ssl)
                           throws IOException

Create a client socket that is connected to the given address and port.

Parameters:

address - the address to connect to

port - the port

ssl - if SSL should be used

Returns:

the socket

Throws:

IOException

createServerSocket

public static ServerSocket createServerSocket(int port,
                              boolean ssl)

Create a server socket. The system property h2.bindAddress is used if set.

Parameters:

port - the port to listen on

ssl - if SSL should be used

Returns:

the server socket

isLocalAddress

public static boolean isLocalAddress(Socket socket)
                              throws UnknownHostException

Check if a socket is connected to a local address.

Parameters:

socket - the socket

Returns:

true if it is

Throws:

UnknownHostException

closeSilently

public static ServerSocket closeSilently(ServerSocket socket)

Close a server socket and ignore any exceptions.

Parameters:

socket - the socket

Returns:

null

getLocalAddress

public static String getLocalAddress()

Get the local host address as a string. For performance, the result is cached for one second.

Returns:

the local host address