io.netty.resolver.dns

类 BiDnsQueryLifecycleObserver

java.lang.Object

io.netty.resolver.dns.BiDnsQueryLifecycleObserver

所有已实现的接口:

DnsQueryLifecycleObserver

public final class BiDnsQueryLifecycleObserver
extends java.lang.Object
implements DnsQueryLifecycleObserver

Combines two DnsQueryLifecycleObserver into a single DnsQueryLifecycleObserver.

构造器概要

构造器

构造器和说明
BiDnsQueryLifecycleObserver(DnsQueryLifecycleObserver a, DnsQueryLifecycleObserver b) Create a new instance.

方法概要

限定符和类型	方法和说明
void	queryCancelled(int queriesRemaining) The query may have been written but it was cancelled at some point.
DnsQueryLifecycleObserver	queryCNAMEd(DnsQuestion cnameQuestion) The query returned a CNAME which we may attempt to follow with a new query.
void	queryFailed(java.lang.Throwable cause) The following criteria are possible: IO Error Server responded with an invalid DNS response Server responded with a valid DNS response, but it didn't progress the resolution
DnsQueryLifecycleObserver	queryNoAnswer(DnsResponseCode code) The response to the query didn't provide the expected response code, but it didn't return DnsResponseCode.NXDOMAIN so we may try to query again.
DnsQueryLifecycleObserver	queryRedirected(java.util.List<java.net.InetSocketAddress> nameServers) The query has been redirected to another list of DNS servers.
void	querySucceed() The query received the expected results.
void	queryWritten(java.net.InetSocketAddress dnsServerAddress, ChannelFuture future) The query has been written.

从类继承的方法 java.lang.Object

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

构造器详细资料

BiDnsQueryLifecycleObserver

public BiDnsQueryLifecycleObserver(DnsQueryLifecycleObserver a,
                                   DnsQueryLifecycleObserver b)

Create a new instance.

参数:

a - The DnsQueryLifecycleObserver that will receive events first.

b - The DnsQueryLifecycleObserver that will receive events second.

方法详细资料

queryWritten

public void queryWritten(java.net.InetSocketAddress dnsServerAddress,
                         ChannelFuture future)

从接口复制的说明: DnsQueryLifecycleObserver

The query has been written.

指定者:

queryWritten 在接口中 DnsQueryLifecycleObserver

参数:

dnsServerAddress - The DNS server address which the query was sent to.

future - The future which represents the status of the write operation for the DNS query.

queryCancelled

public void queryCancelled(int queriesRemaining)

从接口复制的说明: DnsQueryLifecycleObserver

The query may have been written but it was cancelled at some point.

指定者:

queryCancelled 在接口中 DnsQueryLifecycleObserver

参数:

queriesRemaining - The number of queries remaining.

queryRedirected

public DnsQueryLifecycleObserver queryRedirected(java.util.List<java.net.InetSocketAddress> nameServers)

从接口复制的说明: DnsQueryLifecycleObserver

The query has been redirected to another list of DNS servers.

指定者:

queryRedirected 在接口中 DnsQueryLifecycleObserver

参数:

nameServers - The name servers the query has been redirected to.

返回:

An observer for the new query which we may issue.

queryCNAMEd

public DnsQueryLifecycleObserver queryCNAMEd(DnsQuestion cnameQuestion)

从接口复制的说明: DnsQueryLifecycleObserver

The query returned a CNAME which we may attempt to follow with a new query.

Note that multiple queries may be encountering a CNAME. For example a if both DnsRecordType.AAAA and DnsRecordType.A are supported we may query for both.

指定者:

queryCNAMEd 在接口中 DnsQueryLifecycleObserver

参数:

cnameQuestion - the question we would use if we issue a new query.

返回:

An observer for the new query which we may issue.

queryNoAnswer

public DnsQueryLifecycleObserver queryNoAnswer(DnsResponseCode code)

从接口复制的说明: DnsQueryLifecycleObserver

The response to the query didn't provide the expected response code, but it didn't return DnsResponseCode.NXDOMAIN so we may try to query again.

指定者:

queryNoAnswer 在接口中 DnsQueryLifecycleObserver

参数:

code - the unexpected response code.

返回:

An observer for the new query which we may issue.

queryFailed

public void queryFailed(java.lang.Throwable cause)

从接口复制的说明: DnsQueryLifecycleObserver

The following criteria are possible:

• IO Error
• Server responded with an invalid DNS response
• Server responded with a valid DNS response, but it didn't progress the resolution

指定者:

queryFailed 在接口中 DnsQueryLifecycleObserver

参数:

cause - The cause which for the failure.

querySucceed

public void querySucceed()

从接口复制的说明: DnsQueryLifecycleObserver

The query received the expected results.

指定者:

querySucceed 在接口中 DnsQueryLifecycleObserver