Class ResolvConf

java.lang.Object

io.netty.resolver.dns.ResolvConf

final class ResolvConf
extends Object

Looks up the nameservers from the /etc/resolv.conf file, intended for Linux and macOS.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	ResolvConf.ResolvConfLazy

Field Summary

Fields

Modifier and Type	Field	Description
private final List<InetSocketAddress>	nameservers

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ResolvConf(BufferedReader reader)

Method Summary

Modifier and Type	Method	Description
(package private) static ResolvConf	fromFile(String file)	Reads the given file and extracts the nameservers using the syntax of the /etc/resolv.conf file, see man resolv.conf.
(package private) static ResolvConf	fromReader(BufferedReader reader)	Reads from the given reader and extracts the nameservers using the syntax of the /etc/resolv.conf file, see man resolv.conf.
(package private) List<InetSocketAddress>	getNameservers()
(package private) static ResolvConf	system()	Returns the nameservers from the /etc/resolv.conf file.

Methods inherited from class Object

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

Field Details

nameservers

private final List<InetSocketAddress> nameservers

Constructor Details

ResolvConf

private ResolvConf(BufferedReader reader)
            throws IOException

Throws:

IOException

Method Details

fromReader

static ResolvConf fromReader(BufferedReader reader)
                      throws IOException

Reads from the given reader and extracts the nameservers using the syntax of the /etc/resolv.conf file, see man resolv.conf.

Parameters:

reader - contents of resolv.conf are read from this BufferedReader, up to the caller to close it

Throws:

IOException

fromFile

static ResolvConf fromFile(String file)
                    throws IOException

Reads the given file and extracts the nameservers using the syntax of the /etc/resolv.conf file, see man resolv.conf.

Throws:

IOException

system

static ResolvConf system()

Returns the nameservers from the /etc/resolv.conf file. The file is only read once during the lifetime of this class.

getNameservers

List<InetSocketAddress> getNameservers()