Package edu.internet2.middleware.grouperClientExt.org.apache.commons.httpclient

Class HttpVersion

java.lang.Object
edu.internet2.middleware.grouperClientExt.org.apache.commons.httpclient.HttpVersion
All Implemented Interfaces:
Comparable
public class HttpVersion extends Object implements Comparable

HTTP version, as specified in RFC 2616.

HTTP uses a "<major>.<minor>" numbering scheme to indicate versions of the protocol. The protocol versioning policy is intended to allow the sender to indicate the format of a message and its capacity for understanding further HTTP communication, rather than the features obtained via that communication. No change is made to the version number for the addition of message components which do not affect communication behavior or which only add to extensible field values. The <minor> number is incremented when the changes made to the protocol add features which do not change the general message parsing algorithm, but which may add to the message semantics and imply additional capabilities of the sender. The <major> number is incremented when the format of a message within the protocol is changed. See RFC 2145 [36] for a fuller explanation.

The version of an HTTP message is indicated by an HTTP-Version field in the first line of the message. 

     HTTP-Version   = "HTTP" "/" 1*DIGIT "." 1*DIGIT

Note that the major and minor numbers MUST be treated as separate integers and that each MAY be incremented higher than a single digit. Thus, HTTP/2.4 is a lower version than HTTP/2.13, which in turn is lower than HTTP/12.3. Leading zeros MUST be ignored by recipients and MUST NOT be sent.

Since:
3.0
Version:
$Revision: 480424 $ $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $

  • Field Details

    • HTTP_0_9

      public static final HttpVersion HTTP_0_9
      HTTP protocol version 0.9

    • HTTP_1_0

      public static final HttpVersion HTTP_1_0
      HTTP protocol version 1.0

    • HTTP_1_1

      public static final HttpVersion HTTP_1_1
      HTTP protocol version 1.1

  • Constructor Details

    • HttpVersion

      public HttpVersion(int major, int minor)
      Create an HTTP protocol version designator.
      Parameters:
      major - the major version number of the HTTP protocol
      minor - the minor version number of the HTTP protocol
      Throws:
      IllegalArgumentException - if either major or minor version number is negative

  • Method Details

    • getMajor

      public int getMajor()
      Returns the major version number of the HTTP protocol.
      Returns:
      the major version number.

    • getMinor

      public int getMinor()
      Returns the minor version number of the HTTP protocol.
      Returns:
      the minor version number.

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object
      See Also:

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object
      See Also:

    • compareTo

      public int compareTo(HttpVersion anotherVer)
      Compares this HTTP protocol version with another one.
      Parameters:
      anotherVer - the version to be compared with.
      Returns:
      a negative integer, zero, or a positive integer as this version is less than, equal to, or greater than the specified version.

    • compareTo

      public int compareTo(Object o)
      Specified by:
      compareTo in interface Comparable
      See Also:

    • equals

      public boolean equals(HttpVersion version)
      Test if the HTTP protocol version is equal to the given number.
      Returns:
      true if HTTP protocol version is given to the given number, false otherwise.

    • greaterEquals

      public boolean greaterEquals(HttpVersion version)
      Test if the HTTP protocol version is greater or equal to the given number.
      Returns:
      true if HTTP protocol version is greater or equal given to the given number, false otherwise.

    • lessEquals

      public boolean lessEquals(HttpVersion version)
      Test if the HTTP protocol version is less or equal to the given number.
      Returns:
      true if HTTP protocol version is less or equal to given to the given number, false otherwise.

    • toString

      public String toString()
      Overrides:
      toString in class Object
      See Also:

    • parse

      public static HttpVersion parse(String s) throws ProtocolException
      Parses the textual representation of the given HTTP protocol version.
      Returns:
      HTTP protocol version.
      Throws:
      ProtocolException - if the string is not a valid HTTP protocol version.