org.apache.james.jspf.impl
Class DNSServiceXBillImpl

java.lang.Object
  org.apache.james.jspf.impl.DNSServiceXBillImpl

All Implemented Interfaces:

DNSService

public class DNSServiceXBillImpl
extends java.lang.Object
implements DNSService

This class contains helper to get all neccassary DNS infos that are needed for SPF

Field Summary

protected Logger	log
protected int	recordLimit
protected org.xbill.DNS.Resolver	resolver

Constructor Summary

DNSServiceXBillImpl(Logger logger)
Default Constructor.

DNSServiceXBillImpl(Logger logger, org.xbill.DNS.Resolver resolver)
Constructor to specify a custom resolver.

Method Summary

static java.util.List	convertRecordsToList(org.xbill.DNS.Record[] rr) Convert the given Record array to a List
java.util.List	getLocalDomainNames() Try to get all domain names for the running host
int	getRecordLimit()
java.util.List	getRecords(DNSRequest request) Retrieve dns records for the given host
void	setRecordLimit(int recordLimit) Set a new limit for the number of records for MX and PTR lookups.
void	setTimeOut(int timeOut) NOTE if this class is created with the default constructor it will use the static DefaultResolver from DNSJava and this method will change it's timeout.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected Logger log

recordLimit

protected int recordLimit

resolver

protected org.xbill.DNS.Resolver resolver

Constructor Detail

DNSServiceXBillImpl

public DNSServiceXBillImpl(Logger logger)

Default Constructor. Uses the DNSJava static DefaultResolver

DNSServiceXBillImpl

public DNSServiceXBillImpl(Logger logger,
                           org.xbill.DNS.Resolver resolver)

Constructor to specify a custom resolver.

Method Detail

setTimeOut

public void setTimeOut(int timeOut)

NOTE if this class is created with the default constructor it will use the static DefaultResolver from DNSJava and this method will change it's timeout. Other tools using DNSJava in the same JVM could be affected by this timeout change.

Specified by:

setTimeOut in interface DNSService

Parameters:

timeOut - The timeout in seconds

See Also:

DNSService.setTimeOut(int)

getLocalDomainNames

public java.util.List getLocalDomainNames()

Description copied from interface: DNSService

Try to get all domain names for the running host

Specified by:

getLocalDomainNames in interface DNSService

Returns:

names A List contains all domain names which could resolved

See Also:

DNSService.getLocalDomainNames()

getRecordLimit

public int getRecordLimit()

Specified by:

getRecordLimit in interface DNSService

Returns:

the current record limit

setRecordLimit

public void setRecordLimit(int recordLimit)

Set a new limit for the number of records for MX and PTR lookups.

Specified by:

setRecordLimit in interface DNSService

Parameters:

recordLimit -

getRecords

public java.util.List getRecords(DNSRequest request)
                          throws TimeoutException

Description copied from interface: DNSService

Retrieve dns records for the given host

Specified by:

getRecords in interface DNSService

Parameters:

request - the dns request

Returns:

an array of Strings representing the records

Throws:

TimeoutException

See Also:

DNSService.getRecords(org.apache.james.jspf.core.DNSRequest)

convertRecordsToList

public static java.util.List convertRecordsToList(org.xbill.DNS.Record[] rr)

Convert the given Record array to a List

Parameters:

rr - Record array

Returns:

list