io.dropwizard.jetty

Class NetUtil

java.lang.Object

io.dropwizard.jetty.NetUtil

public class NetUtil
extends Object

This class is taken from the Netty project, and all credit goes to them. It has been modified, to remove dependencies on other classes, and to convert to methods, rather than a static value. The getAllLocalIPs() method was taken from the Apache Curator project which is also under the Apache 2.0 license.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_TCP_BACKLOG_LINUX
static int	DEFAULT_TCP_BACKLOG_WINDOWS
static String	TCP_BACKLOG_SETTING_LOCATION

Constructor Summary

Constructors

Constructor and Description
NetUtil()

Method Summary

Modifier and Type	Method and Description
static Collection<InetAddress>	getAllLocalIPs() based on http://pastebin.com/5X073pUc
static int	getDefaultTcpBacklog()
static LocalIpFilter	getLocalIpFilter() Return the current local ip filter used by getAllLocalIPs()
static int	getTcpBacklog() The SOMAXCONN value of the current machine.
static int	getTcpBacklog(int tcpBacklog) The SOMAXCONN value of the current machine.
static boolean	isWindows()
static void	setLocalIpFilter(LocalIpFilter newLocalIpFilter) Replace the default local ip filter used by getAllLocalIPs()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_TCP_BACKLOG_WINDOWS

public static final int DEFAULT_TCP_BACKLOG_WINDOWS

See Also:

Constant Field Values

DEFAULT_TCP_BACKLOG_LINUX

public static final int DEFAULT_TCP_BACKLOG_LINUX

See Also:

Constant Field Values

TCP_BACKLOG_SETTING_LOCATION

public static final String TCP_BACKLOG_SETTING_LOCATION

See Also:

Constant Field Values

Constructor Detail

NetUtil

public NetUtil()

Method Detail

getTcpBacklog

public static int getTcpBacklog()

The SOMAXCONN value of the current machine. If failed to get the value, 200 is used as a default value for Windows or 128 for others.

getTcpBacklog

public static int getTcpBacklog(int tcpBacklog)

The SOMAXCONN value of the current machine. If failed to get the value, defaultBacklog argument is used

isWindows

public static boolean isWindows()

getDefaultTcpBacklog

public static int getDefaultTcpBacklog()

setLocalIpFilter

public static void setLocalIpFilter(LocalIpFilter newLocalIpFilter)

Replace the default local ip filter used by getAllLocalIPs()

Parameters:

newLocalIpFilter - the new local ip filter

getLocalIpFilter

public static LocalIpFilter getLocalIpFilter()

Return the current local ip filter used by getAllLocalIPs()

Returns:

ip filter

getAllLocalIPs

public static Collection<InetAddress> getAllLocalIPs()
                                              throws SocketException

based on http://pastebin.com/5X073pUc

Returns all available IP addresses.

In error case or if no network connection is established, we return an empty list here.

Loopback addresses are excluded - so 127.0.0.1 will not be never returned.

The "primary" IP might not be the first one in the returned list.

Returns:

Returns all IP addresses (can be an empty list in error case or if network connection is missing).

Throws:

SocketException - errors

See Also:

getAllLocalIPs, ServiceInstanceBuilder.java