MacOSDnsServerAddressStreamProvider (Netty API Reference (4.2.7.Final))

java.lang.Object
- io.netty.resolver.dns.macos.MacOSDnsServerAddressStreamProvider

All Implemented Interfaces:

DnsServerAddressStreamProvider
```
public final class MacOSDnsServerAddressStreamProvider
extends java.lang.Object
implements DnsServerAddressStreamProvider
```
DnsServerAddressStreamProvider implementation which makes use of the same mechanism as Apple's open source mDNSResponder to retrieve the current nameserver configuration of the system.

Constructor Summary

Constructors
Constructor Description

MacOSDnsServerAddressStreamProvider()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`ensureAvailability()`
`static boolean`	`isAvailable()`
`DnsServerAddressStream`	`nameServerAddressStream(java.lang.String hostname)`	Ask this provider for the name servers to query for `hostname`.
`static java.lang.Throwable`	`unavailabilityCause()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MacOSDnsServerAddressStreamProvider
```
public MacOSDnsServerAddressStreamProvider()
```
- Method Detail
  - isAvailable
```
public static boolean isAvailable()
```
  - ensureAvailability
```
public static void ensureAvailability()
```
  - unavailabilityCause
```
public static java.lang.Throwable unavailabilityCause()
```
  - nameServerAddressStream
```
public DnsServerAddressStream nameServerAddressStream(java.lang.String hostname)
```
    Description copied from interface: DnsServerAddressStreamProvider
    
    Ask this provider for the name servers to query for hostname.
    
    Specified by:
    
    nameServerAddressStream in interface DnsServerAddressStreamProvider
    
    Parameters:
    
    hostname - The hostname for which to lookup the DNS server addressed to use. If this is the final DnsServerAddressStreamProvider to be queried then generally empty string or '.' correspond to the default DnsServerAddressStream.
    
    Returns:
    
    The DnsServerAddressStream which should be used to resolve hostname.