Package javax.mail

Class URLName

  • public class URLName
extends java.lang.Object
    The name of a URL. This class represents a URL name and also provides the basic parsing functionality to parse most internet standard URL schemes.

    Note that this class differs from java.net.URL in that this class just represents the name of a URL, it does not model the connection to a URL.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      (package private) static int caseDiff  
      private static boolean doEncode
      A way to turn off encoding, just in case...
      (package private) static java.util.BitSet dontNeedEncoding
      The class contains a utility method for converting a String into a MIME format called "x-www-form-urlencoded" format.
      private java.lang.String file
      The specified file name on that host.
      protected java.lang.String fullURL
      The full version of the URL
      private int hashCode
      Our hash code.
      private java.lang.String host
      The host name to which to connect.
      private java.net.InetAddress hostAddress
      The host's IP address, used in equals and hashCode.
      private boolean hostAddressKnown  
      private java.lang.String password
      The password to use when connecting.
      private int port
      The protocol port to connect to.
      private java.lang.String protocol
      The protocol to use (ftp, http, nntp, imap, pop3 ...
      private java.lang.String ref
      # reference.
      private java.lang.String username
      The username to use when connecting

    • Constructor Summary

      Constructors 
      Constructor Description
      URLName​(java.lang.String url)
      Construct a URLName from the string.
      URLName​(java.lang.String protocol, java.lang.String host, int port, java.lang.String file, java.lang.String username, java.lang.String password)
      Creates a URLName object from the specified protocol, host, port number, file, username, and password.
      URLName​(java.net.URL url)
      Construct a URLName from a java.net.URL object.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private static java.lang.String _encode​(java.lang.String s)  
      (package private) static java.lang.String decode​(java.lang.String s)
      Decodes a "x-www-form-urlencoded" to a String.
      (package private) static java.lang.String encode​(java.lang.String s)
      Translates a string into x-www-form-urlencoded format.
      boolean equals​(java.lang.Object obj)
      Compares two URLNames.
      java.lang.String getFile()
      Returns the file name of this URLName.
      java.lang.String getHost()
      Returns the host of this URLName.
      private java.net.InetAddress getHostAddress()
      Get the IP address of our host.
      java.lang.String getPassword()
      Returns the password of this URLName.
      int getPort()
      Returns the port number of this URLName.
      java.lang.String getProtocol()
      Returns the protocol of this URLName.
      java.lang.String getRef()
      Returns the reference of this URLName.
      java.net.URL getURL()
      Constructs a URL from the URLName.
      java.lang.String getUsername()
      Returns the user name of this URLName.
      int hashCode()
      Compute the hash code for this URLName.
      private static int indexOfAny​(java.lang.String s, java.lang.String any)
      Return the first index of any of the characters in "any" in "s", or -1 if none are found.
      private static int indexOfAny​(java.lang.String s, java.lang.String any, int start)  
      protected void parseString​(java.lang.String url)
      Method which does all of the work of parsing the string.
      java.lang.String toString()
      Constructs a string representation of this URLName.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • fullURL

        protected java.lang.String fullURL
        The full version of the URL

      • protocol

        private java.lang.String protocol
        The protocol to use (ftp, http, nntp, imap, pop3 ... etc.) .

      • username

        private java.lang.String username
        The username to use when connecting

      • password

        private java.lang.String password
        The password to use when connecting.

      • host

        private java.lang.String host
        The host name to which to connect.

      • hostAddress

        private java.net.InetAddress hostAddress
        The host's IP address, used in equals and hashCode. Computed on demand.

      • hostAddressKnown

        private boolean hostAddressKnown

      • port

        private int port
        The protocol port to connect to.

      • file

        private java.lang.String file
        The specified file name on that host.

      • ref

        private java.lang.String ref
        # reference.

      • hashCode

        private int hashCode
        Our hash code.

      • doEncode

        private static boolean doEncode
        A way to turn off encoding, just in case...

      • dontNeedEncoding

        static java.util.BitSet dontNeedEncoding
        The class contains a utility method for converting a String into a MIME format called "x-www-form-urlencoded" format.

        To convert a String, each character is examined in turn:

        • The ASCII characters 'a' through 'z', 'A' through 'Z', '0' through '9', and ".", "-", "*", "_" remain the same.
        • The space character ' ' is converted into a plus sign '+'.
        • All other characters are converted into the 3-character string "%xy", where xy is the two-digit hexadecimal representation of the lower 8-bits of the character.
        Since:
        JDK1.0

    • Constructor Detail

      • URLName

        public URLName​(java.lang.String protocol,
               java.lang.String host,
               int port,
               java.lang.String file,
               java.lang.String username,
               java.lang.String password)
        Creates a URLName object from the specified protocol, host, port number, file, username, and password. Specifying a port number of -1 indicates that the URL should use the default port for the protocol.
        Parameters:
        protocol - the protocol
        host - the host name
        port - the port number
        file - the file
        username - the user name
        password - the password

      • URLName

        public URLName​(java.net.URL url)
        Construct a URLName from a java.net.URL object.
        Parameters:
        url - the URL

      • URLName

        public URLName​(java.lang.String url)
        Construct a URLName from the string. Parses out all the possible information (protocol, host, port, file, username, password).
        Parameters:
        url - the URL string

    • Method Detail

      • toString

        public java.lang.String toString()
        Constructs a string representation of this URLName.
        Overrides:
        toString in class java.lang.Object

      • parseString

        protected void parseString​(java.lang.String url)
        Method which does all of the work of parsing the string.
        Parameters:
        url - the URL string to parse

      • getPort

        public int getPort()
        Returns the port number of this URLName. Returns -1 if the port is not set.
        Returns:
        the port number

      • getProtocol

        public java.lang.String getProtocol()
        Returns the protocol of this URLName. Returns null if this URLName has no protocol.
        Returns:
        the protocol

      • getFile

        public java.lang.String getFile()
        Returns the file name of this URLName. Returns null if this URLName has no file name.
        Returns:
        the file name of this URLName

      • getRef

        public java.lang.String getRef()
        Returns the reference of this URLName. Returns null if this URLName has no reference.
        Returns:
        the reference part of the URLName

      • getHost

        public java.lang.String getHost()
        Returns the host of this URLName. Returns null if this URLName has no host.
        Returns:
        the host name

      • getUsername

        public java.lang.String getUsername()
        Returns the user name of this URLName. Returns null if this URLName has no user name.
        Returns:
        the user name

      • getPassword

        public java.lang.String getPassword()
        Returns the password of this URLName. Returns null if this URLName has no password.
        Returns:
        the password

      • getURL

        public java.net.URL getURL()
                    throws java.net.MalformedURLException
        Constructs a URL from the URLName.
        Returns:
        the URL
        Throws:
        java.net.MalformedURLException - if the URL is malformed

      • equals

        public boolean equals​(java.lang.Object obj)
        Compares two URLNames. The result is true if and only if the argument is not null and is a URLName object that represents the same URLName as this object. Two URLName objects are equal if they have the same protocol and the same host, the same port number on the host, the same username, and the same file on the host. The fields (host, username, file) are also considered the same if they are both null.

        Hosts are considered equal if the names are equal (case independent) or if host name lookups for them both succeed and they both reference the same IP address.

        Note that URLName has no knowledge of default port numbers for particular protocols, so "imap://host" and "imap://host:143" would not compare as equal.

        Note also that the password field is not included in the comparison, nor is any reference field appended to the filename.

        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Compute the hash code for this URLName.
        Overrides:
        hashCode in class java.lang.Object

      • getHostAddress

        private java.net.InetAddress getHostAddress()
        Get the IP address of our host. Look up the name the first time and remember that we've done so, whether the lookup fails or not.

      • encode

        static java.lang.String encode​(java.lang.String s)
        Translates a string into x-www-form-urlencoded format.
        Parameters:
        s - String to be translated.
        Returns:
        the translated String.

      • _encode

        private static java.lang.String _encode​(java.lang.String s)

      • decode

        static java.lang.String decode​(java.lang.String s)
        Decodes a "x-www-form-urlencoded" to a String.
        Parameters:
        s - the String to decode
        Returns:
        the newly decoded String

      • indexOfAny

        private static int indexOfAny​(java.lang.String s,
                              java.lang.String any)
        Return the first index of any of the characters in "any" in "s", or -1 if none are found. This should be a method on String.

      • indexOfAny

        private static int indexOfAny​(java.lang.String s,
                              java.lang.String any,
                              int start)