public class DNSUtil
extends java.lang.Object
Constructor and Description |
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DNSUtil() |
Modifier and Type | Method and Description |
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static DNSResolver |
getDNSResolver()
Returns the current DNS resolved used to perform DNS lookups.
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static java.util.List<HostAddress> |
resolveXMPPDomain(java.lang.String domain,
java.util.List<HostAddress> failedAddresses)
Returns a list of HostAddresses under which the specified XMPP server can be reached at for client-to-server
communication.
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static java.util.List<HostAddress> |
resolveXMPPServerDomain(java.lang.String domain,
java.util.List<HostAddress> failedAddresses)
Returns a list of HostAddresses under which the specified XMPP server can be reached at for server-to-server
communication.
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static void |
setDNSResolver(DNSResolver resolver)
Set the DNS resolver that should be used to perform DNS lookups.
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static void |
setIdnaTransformer(StringTransformer idnaTransformer)
Set the IDNA (Internationalizing Domain Names in Applications, RFC 3490) transformer.
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public static void setDNSResolver(DNSResolver resolver)
resolver
- public static DNSResolver getDNSResolver()
public static void setIdnaTransformer(StringTransformer idnaTransformer)
You usually want to wrap 'java.net.IDN.toASCII()' into a StringTransformer here.
idnaTransformer
- public static java.util.List<HostAddress> resolveXMPPDomain(java.lang.String domain, java.util.List<HostAddress> failedAddresses)
As an example, a lookup for "example.com" may return "im.example.com:5269".
domain
- the domain.failedAddresses
- on optional list that will be populated with host addresses that failed to resolve.public static java.util.List<HostAddress> resolveXMPPServerDomain(java.lang.String domain, java.util.List<HostAddress> failedAddresses)
As an example, a lookup for "example.com" may return "im.example.com:5269".
domain
- the domain.failedAddresses
- on optional list that will be populated with host addresses that failed to resolve.