java.lang.Object

org.minidns.dnslabel.DnsLabel

All Implemented Interfaces:: CharSequence, Comparable<DnsLabel>

Direct Known Subclasses:: LdhLabel, NonLdhLabel

public abstract class DnsLabel
extends Object
implements CharSequence, Comparable<DnsLabel>

A DNS label is an individual component of a DNS name. Labels are usually shown separated by dots.

This class implements Comparable which compares DNS labels according to the Canonical DNS Name Order as specified in RFC 4034 § 6.1.

Note that as per RFC 2181 § 11 DNS labels may contain any byte.

Author:: Florian Schmaus
See Also:: RFC 5890 § 2.2. DNS-Related Terminology

Nested Class Summary

Nested Classes

Modifier and Type Class Description

static class DnsLabel.LabelToLongException

Field Summary

Fields
Modifier and Type	Field	Description
`String`	`label`
`static int`	`MAX_LABEL_LENGTH_IN_OCTETS`	The maximum length of a DNS label in octets.
`static boolean`	`VALIDATE`	Whether or not the DNS label is validated on construction.
`static DnsLabel`	`WILDCARD_LABEL`

Constructor Summary

Constructors

Modifier Constructor Description

protected DnsLabel(String label)

Method Summary

Modifier and Type	Method	Description
`DnsLabel`	`asLowercaseVariant()`
`char`	`charAt(int index)`
`int`	`compareTo(DnsLabel other)`
`boolean`	`equals(Object other)`
`static DnsLabel`	`from(String label)`
`static DnsLabel[]`	`from(String[] labels)`
`String`	`getInternationalizedRepresentation()`
`protected String`	`getInternationalizedRepresentationInternal()`
`String`	`getLabelType()`
`int`	`hashCode()`
`static boolean`	`isIdnAcePrefixed(String string)`
`int`	`length()`
`CharSequence`	`subSequence(int start, int end)`
`String`	`toString()`
`void`	`writeToBoas(ByteArrayOutputStream byteArrayOutputStream)`

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.CharSequence

chars, codePoints

Field Details
- MAX_LABEL_LENGTH_IN_OCTETS
  
  public static final int MAX_LABEL_LENGTH_IN_OCTETS
  
  The maximum length of a DNS label in octets.
  
  See Also:
  
  RFC 1035 § 2.3.4., Constant Field Values
- WILDCARD_LABEL
  
  public static final DnsLabel WILDCARD_LABEL
- VALIDATE
  
  public static boolean VALIDATE
  
  Whether or not the DNS label is validated on construction.
- label
  
  public final String label
Constructor Details
- DnsLabel
  
  protected DnsLabel(String label)
Method Details
- getInternationalizedRepresentation
  
  public final String getInternationalizedRepresentation()
- getInternationalizedRepresentationInternal
  
  protected String getInternationalizedRepresentationInternal()
- getLabelType
  
  public final String getLabelType()
- length
  
  public final int length()
  
  Specified by:
  
  length in interface CharSequence
- charAt
  
  public final char charAt(int index)
  
  Specified by:
  
  charAt in interface CharSequence
- subSequence
  
  public final CharSequence subSequence(int start, int end)
  
  Specified by:
  
  subSequence in interface CharSequence
- toString
  
  public final String toString()
  
  Specified by:
  
  toString in interface CharSequence
  
  Overrides:
  
  toString in class Object
- equals
  
  public final boolean equals(Object other)
  
  Overrides:
  
  equals in class Object
- hashCode
  
  public final int hashCode()
  
  Overrides:
  
  hashCode in class Object
- asLowercaseVariant
  
  public final DnsLabel asLowercaseVariant()
- writeToBoas
  
  public final void writeToBoas(ByteArrayOutputStream byteArrayOutputStream)
- compareTo
  
  public final int compareTo(DnsLabel other)
  
  Specified by:
  
  compareTo in interface Comparable<DnsLabel>
- from
  
  public static DnsLabel from(String label)
- from
  
  public static DnsLabel[] from(String[] labels)
- isIdnAcePrefixed
  
  public static boolean isIdnAcePrefixed(String string)

Class DnsLabel

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.lang.CharSequence

Field Details

Constructor Details

Method Details