Package uk.num.numlib.internal.dns

Class DNSServicesDefaultImpl

java.lang.Object

uk.num.numlib.internal.dns.DNSServicesDefaultImpl

All Implemented Interfaces:

DNSServices

public class DNSServicesDefaultImpl
extends java.lang.Object
implements DNSServices

A default implementation of the DNSServices interface.

Constructor Summary

Constructors

Constructor	Description
DNSServicesDefaultImpl()

Method Summary

Modifier and Type	Method	Description
org.xbill.DNS.Record[]	getConfigFileTXTRecords(AppContext appContext, java.lang.String moduleId, int timeoutMillis)	Get the Module Configuration from DNS as an array of Records
org.xbill.DNS.Record[]	getRecordFromDnsNoCache(NonBlankString query, int timeoutMillis, boolean checkDnsSecValidity)	Get a NUM record from DNS without caching.
java.lang.String	rebuildTXTRecordContent(org.xbill.DNS.Record[] records)	Concatenate an array of TXT record values to a single String

Methods inherited from class java.lang.Object

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

Constructor Detail

DNSServicesDefaultImpl

public DNSServicesDefaultImpl()

Method Detail

getConfigFileTXTRecords

public org.xbill.DNS.Record[] getConfigFileTXTRecords(AppContext appContext,
                                                      java.lang.String moduleId,
                                                      int timeoutMillis)
                                               throws NumInvalidDNSQueryException,
                                                      NumDNSQueryException

Get the Module Configuration from DNS as an array of Records

Specified by:

getConfigFileTXTRecords in interface DNSServices

Parameters:

appContext - the AppContext

moduleId - The module Id String

timeoutMillis - The number of milliseconds to wait for a response.

Returns:

An array of Records

Throws:

NumInvalidDNSQueryException - on error

NumDNSQueryException - on error

rebuildTXTRecordContent

public java.lang.String rebuildTXTRecordContent(org.xbill.DNS.Record[] records)
                                         throws RrSetNoHeadersException,
                                                RrSetHeaderFormatException,
                                                RrSetIncompleteException

Concatenate an array of TXT record values to a single String

Specified by:

rebuildTXTRecordContent in interface DNSServices

Parameters:

records - The array of Records

Returns:

The concatenated result.

Throws:

RrSetNoHeadersException - on error

RrSetHeaderFormatException - on error

RrSetIncompleteException - on error

getRecordFromDnsNoCache

public org.xbill.DNS.Record[] getRecordFromDnsNoCache(NonBlankString query,
                                                      int timeoutMillis,
                                                      boolean checkDnsSecValidity)
                                               throws NumNotImplementedException,
                                                      NumInvalidDNSQueryException,
                                                      NumNoRecordAvailableException

Get a NUM record from DNS without caching.

Specified by:

getRecordFromDnsNoCache in interface DNSServices

Parameters:

query - The NUM formatted DNS query.

timeoutMillis - The number of milliseconds to wait for a response.

checkDnsSecValidity - true if the result should be checked for DNSSEC validity.

Returns:

An array of Records

Throws:

NumNotImplementedException - on error

NumInvalidDNSQueryException - on error

NumNoRecordAvailableException - if a CNAME or SPF record is received instead of a TXT record