javax.mail.internet

Class InternetAddress

java.lang.Object

javax.mail.Address

javax.mail.internet.InternetAddress

All Implemented Interfaces:

Serializable, Cloneable

public class InternetAddress
extends Address
implements Cloneable

This class represents an Internet email address using the syntax of RFC822. Typical address syntax is of the form "user@host.domain" or "Personal Name <user@host.domain>".

Author:

Bill Shannon, John Mani

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected String	address
protected String	encodedPersonal The RFC 2047 encoded version of the personal name.
protected String	personal The personal name.

Constructor Summary

Constructors

Constructor and Description
InternetAddress() Default constructor.
InternetAddress(String address) Constructor.
InternetAddress(String address, boolean strict) Parse the given string and create an InternetAddress.
InternetAddress(String address, String personal) Construct an InternetAddress given the address and personal name.
InternetAddress(String address, String personal, String charset) Construct an InternetAddress given the address and personal name.

Method Summary

Modifier and Type	Method and Description
Object	clone() Return a copy of this InternetAddress object.
boolean	equals(Object a) The equality operator.
String	getAddress() Get the email address.
InternetAddress[]	getGroup(boolean strict) Return the members of a group address.
static InternetAddress	getLocalAddress(Session session) Return an InternetAddress object representing the current user.
String	getPersonal() Get the personal name.
String	getType() Return the type of this address.
int	hashCode() Compute a hash code for the address.
boolean	isGroup() Indicates whether this address is an RFC 822 group address.
static InternetAddress[]	parse(String addresslist) Parse the given comma separated sequence of addresses into InternetAddress objects.
static InternetAddress[]	parse(String addresslist, boolean strict) Parse the given sequence of addresses into InternetAddress objects.
static InternetAddress[]	parseHeader(String addresslist, boolean strict) Parse the given sequence of addresses into InternetAddress objects.
void	setAddress(String address) Set the email address.
void	setPersonal(String name) Set the personal name.
void	setPersonal(String name, String charset) Set the personal name.
String	toString() Convert this address into a RFC 822 / RFC 2047 encoded address.
static String	toString(Address[] addresses) Convert the given array of InternetAddress objects into a comma separated sequence of address strings.
static String	toString(Address[] addresses, int used) Convert the given array of InternetAddress objects into a comma separated sequence of address strings.
String	toUnicodeString() Returns a properly formatted address (RFC 822 syntax) of Unicode characters.
void	validate() Validate that this address conforms to the syntax rules of RFC 822.

Methods inherited from class java.lang.Object

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

Field Detail

address

protected String address

personal

protected String personal

The personal name.

encodedPersonal

protected String encodedPersonal

The RFC 2047 encoded version of the personal name.

This field and the personal field track each other, so if a subclass sets one of these fields directly, it should set the other to null, so that it is suitably recomputed.

Constructor Detail

InternetAddress

public InternetAddress()

Default constructor.

InternetAddress

public InternetAddress(String address)
                throws AddressException

Constructor.

Parse the given string and create an InternetAddress. See the parse method for details of the parsing. The address is parsed using "strict" parsing. This constructor does not perform the additional syntax checks that the InternetAddress(String address, boolean strict) constructor does when strict is true. This constructor is equivalent to InternetAddress(address, false).

Parameters:

address - the address in RFC822 format

Throws:

AddressException - if the parse failed

InternetAddress

public InternetAddress(String address,
                       boolean strict)
                throws AddressException

Parse the given string and create an InternetAddress. If strict is false, the detailed syntax of the address isn't checked.

Parameters:

address - the address in RFC822 format

strict - enforce RFC822 syntax

Throws:

AddressException - if the parse failed

Since:

JavaMail 1.3

InternetAddress

public InternetAddress(String address,
                       String personal)
                throws UnsupportedEncodingException

Construct an InternetAddress given the address and personal name. The address is assumed to be a syntactically valid RFC822 address.

Parameters:

address - the address in RFC822 format

personal - the personal name

Throws:

UnsupportedEncodingException - if the personal name can't be encoded in the given charset

InternetAddress

public InternetAddress(String address,
                       String personal,
                       String charset)
                throws UnsupportedEncodingException

Construct an InternetAddress given the address and personal name. The address is assumed to be a syntactically valid RFC822 address.

Parameters:

address - the address in RFC822 format

personal - the personal name

charset - the MIME charset for the name

Throws:

UnsupportedEncodingException - if the personal name can't be encoded in the given charset

Method Detail

clone

public Object clone()

Return a copy of this InternetAddress object.

Overrides:

clone in class Object

Since:

JavaMail 1.2

getType

public String getType()

Return the type of this address. The type of an InternetAddress is "rfc822".

Specified by:

getType in class Address

Returns:

address type

See Also:

InternetAddress

setAddress

public void setAddress(String address)

Set the email address.

Parameters:

address - email address

setPersonal

public void setPersonal(String name,
                        String charset)
                 throws UnsupportedEncodingException

Set the personal name. If the name contains non US-ASCII characters, then the name will be encoded using the specified charset as per RFC 2047. If the name contains only US-ASCII characters, no encoding is done and the name is used as is.

Parameters:

name - personal name

charset - MIME charset to be used to encode the name as per RFC 2047

Throws:

UnsupportedEncodingException - if the charset encoding fails.

See Also:

setPersonal(String)

setPersonal

public void setPersonal(String name)
                 throws UnsupportedEncodingException

Set the personal name. If the name contains non US-ASCII characters, then the name will be encoded using the platform's default charset. If the name contains only US-ASCII characters, no encoding is done and the name is used as is.

Parameters:

name - personal name

Throws:

UnsupportedEncodingException - if the charset encoding fails.

See Also:

setPersonal(String name, String charset)

getAddress

public String getAddress()

Get the email address.

Returns:

email address

getPersonal

public String getPersonal()

Get the personal name. If the name is encoded as per RFC 2047, it is decoded and converted into Unicode. If the decoding or conversion fails, the raw data is returned as is.

Returns:

personal name

toString

public String toString()

Convert this address into a RFC 822 / RFC 2047 encoded address. The resulting string contains only US-ASCII characters, and hence is mail-safe.

Specified by:

toString in class Address

Returns:

possibly encoded address string

toUnicodeString

public String toUnicodeString()

Returns a properly formatted address (RFC 822 syntax) of Unicode characters.

Returns:

Unicode address string

Since:

JavaMail 1.2

equals

public boolean equals(Object a)

The equality operator.

Specified by:

equals in class Address

Parameters:

a - Address object

hashCode

public int hashCode()

Compute a hash code for the address.

Overrides:

hashCode in class Object

toString

public static String toString(Address[] addresses)

Convert the given array of InternetAddress objects into a comma separated sequence of address strings. The resulting string contains only US-ASCII characters, and hence is mail-safe.

Parameters:

addresses - array of InternetAddress objects

Returns:

comma separated string of addresses

Throws:

ClassCastException - if any address object in the given array is not an InternetAddress object. Note that this is a RuntimeException.

toString

public static String toString(Address[] addresses,
                              int used)

Convert the given array of InternetAddress objects into a comma separated sequence of address strings. The resulting string contains only US-ASCII characters, and hence is mail-safe.

The 'used' parameter specifies the number of character positions already taken up in the field into which the resulting address sequence string is to be inserted. It is used to determine the line-break positions in the resulting address sequence string.

Parameters:

addresses - array of InternetAddress objects

used - number of character positions already used, in the field into which the address string is to be inserted.

Returns:

comma separated string of addresses

Throws:

ClassCastException - if any address object in the given array is not an InternetAddress object. Note that this is a RuntimeException.

getLocalAddress

public static InternetAddress getLocalAddress(Session session)

Return an InternetAddress object representing the current user. The entire email address may be specified in the "mail.from" property. If not set, the "mail.user" and "mail.host" properties are tried. If those are not set, the "user.name" property and InetAddress.getLocalHost method are tried. Security exceptions that may occur while accessing this information are ignored. If it is not possible to determine an email address, null is returned.

Parameters:

session - Session object used for property lookup

Returns:

current user's email address

parse

public static InternetAddress[] parse(String addresslist)
                               throws AddressException

Parse the given comma separated sequence of addresses into InternetAddress objects. Addresses must follow RFC822 syntax.

Parameters:

addresslist - comma separated address strings

Returns:

array of InternetAddress objects

Throws:

AddressException - if the parse failed

parse

public static InternetAddress[] parse(String addresslist,
                                      boolean strict)
                               throws AddressException

Parse the given sequence of addresses into InternetAddress objects. If strict is false, simple email addresses separated by spaces are also allowed. If strict is true, many (but not all) of the RFC822 syntax rules are enforced. In particular, even if strict is true, addresses composed of simple names (with no "@domain" part) are allowed. Such "illegal" addresses are not uncommon in real messages.

Non-strict parsing is typically used when parsing a list of mail addresses entered by a human. Strict parsing is typically used when parsing address headers in mail messages.

Parameters:

addresslist - comma separated address strings

strict - enforce RFC822 syntax

Returns:

array of InternetAddress objects

Throws:

AddressException - if the parse failed

parseHeader

public static InternetAddress[] parseHeader(String addresslist,
                                            boolean strict)
                                     throws AddressException

Parse the given sequence of addresses into InternetAddress objects. If strict is false, the full syntax rules for individual addresses are not enforced. If strict is true, many (but not all) of the RFC822 syntax rules are enforced.

To better support the range of "invalid" addresses seen in real messages, this method enforces fewer syntax rules than the parse method when the strict flag is false and enforces more rules when the strict flag is true. If the strict flag is false and the parse is successful in separating out an email address or addresses, the syntax of the addresses themselves is not checked.

Parameters:

addresslist - comma separated address strings

strict - enforce RFC822 syntax

Returns:

array of InternetAddress objects

Throws:

AddressException - if the parse failed

Since:

JavaMail 1.3

validate

public void validate()
              throws AddressException

Validate that this address conforms to the syntax rules of RFC 822. The current implementation checks many, but not all, syntax rules. Note that even though the syntax of the address may be correct, there's no guarantee that a mailbox of that name exists.

Throws:

AddressException - if the address isn't valid.

Since:

JavaMail 1.3

isGroup

public boolean isGroup()

Indicates whether this address is an RFC 822 group address. Note that a group address is different than the mailing list addresses supported by most mail servers. Group addresses are rarely used; see RFC 822 for details.

Returns:

true if this address represents a group

Since:

JavaMail 1.3

getGroup

public InternetAddress[] getGroup(boolean strict)
                           throws AddressException

Return the members of a group address. A group may have zero, one, or more members. If this address is not a group, null is returned. The strict parameter controls whether the group list is parsed using strict RFC 822 rules or not. The parsing is done using the parseHeader method.

Parameters:

strict - use strict RFC 822 rules?

Returns:

array of InternetAddress objects, or null

Throws:

AddressException - if the group list can't be parsed

Since:

JavaMail 1.3