org.minidns.iterative

Class IterativeDnsClient

java.lang.Object

org.minidns.AbstractDnsClient

org.minidns.iterative.IterativeDnsClient

public class IterativeDnsClient
extends org.minidns.AbstractDnsClient

Nested Class Summary

Nested classes/interfaces inherited from class org.minidns.AbstractDnsClient

org.minidns.AbstractDnsClient.IpVersionSetting

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.net.Inet4Address[]	IPV4_ROOT_SERVERS
protected static java.net.Inet6Address[]	IPV6_ROOT_SERVERS

Fields inherited from class org.minidns.AbstractDnsClient

cache, dataSource, DEFAULT_CACHE, DEFAULT_IP_VERSION_SETTING, insecureRandom, ipVersionSetting, LOGGER, random

Constructor Summary

Constructors

Constructor and Description
IterativeDnsClient() Create a new recursive DNS client using the global default cache.
IterativeDnsClient(org.minidns.DnsCache cache) Create a new recursive DNS client with the given DNS cache.

Method Summary

Modifier and Type	Method and Description
protected static void	abortIfFatal(java.io.IOException ioException)
static java.util.List<java.net.InetAddress>	getRootServer(char rootServerId)
static java.util.List<java.net.InetAddress>	getRootServer(char rootServerId, org.minidns.AbstractDnsClient.IpVersionSetting setting)
protected boolean	isResponseCacheable(org.minidns.dnsmessage.Question q, org.minidns.dnsmessage.DnsMessage dnsMessage)
protected org.minidns.dnsmessage.DnsMessage.Builder	newQuestion(org.minidns.dnsmessage.DnsMessage.Builder message)
protected org.minidns.dnsmessage.DnsMessage	query(org.minidns.dnsmessage.DnsMessage.Builder queryBuilder) Recursively query the DNS system for one entry.

Methods inherited from class org.minidns.AbstractDnsClient

getCache, getCachedIPv4AddressesFor, getCachedIPv4NameserverAddressesFor, getCachedIPv6AddressesFor, getCachedIPv6NameserverAddressesFor, getCachedNameserverRecordsFor, getDataSource, getPreferedIpVersion, getQueryFor, query, query, query, query, query, query, query, query, query, query, query, queryAsync, queryAsync, queryAsync, queryAsync, queryAsync, setDataSource, setDefaultIpVersion, setPreferedIpVersion

Methods inherited from class java.lang.Object

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

Field Detail

IPV4_ROOT_SERVERS

protected static final java.net.Inet4Address[] IPV4_ROOT_SERVERS

IPV6_ROOT_SERVERS

protected static final java.net.Inet6Address[] IPV6_ROOT_SERVERS

Constructor Detail

IterativeDnsClient

public IterativeDnsClient()

Create a new recursive DNS client using the global default cache.

IterativeDnsClient

public IterativeDnsClient(org.minidns.DnsCache cache)

Create a new recursive DNS client with the given DNS cache.

Parameters:

cache - The backend DNS cache.

Method Detail

query

protected org.minidns.dnsmessage.DnsMessage query(org.minidns.dnsmessage.DnsMessage.Builder queryBuilder)
                                           throws java.io.IOException

Recursively query the DNS system for one entry.

Specified by:

query in class org.minidns.AbstractDnsClient

Parameters:

queryBuilder - The query DNS message builder.

Returns:

The response (or null on timeout/error).

Throws:

java.io.IOException - if an IO error occurs.

getRootServer

public static java.util.List<java.net.InetAddress> getRootServer(char rootServerId)

getRootServer

public static java.util.List<java.net.InetAddress> getRootServer(char rootServerId,
                                                                 org.minidns.AbstractDnsClient.IpVersionSetting setting)

isResponseCacheable

protected boolean isResponseCacheable(org.minidns.dnsmessage.Question q,
                                      org.minidns.dnsmessage.DnsMessage dnsMessage)

Overrides:

isResponseCacheable in class org.minidns.AbstractDnsClient

newQuestion

protected org.minidns.dnsmessage.DnsMessage.Builder newQuestion(org.minidns.dnsmessage.DnsMessage.Builder message)

Specified by:

newQuestion in class org.minidns.AbstractDnsClient

abortIfFatal

protected static void abortIfFatal(java.io.IOException ioException)
                            throws java.io.IOException

Throws:

java.io.IOException