Package com.google.gwt.http.client

Class URL

java.lang.Object

com.google.gwt.http.client.URL

public final class URL
extends Object

Utility class for the encoding and decoding URLs in their entirety or by their individual components.

Required Module

Modules that use this class should inherit com.google.gwt.http.HTTP.

<module>
  <!-- other inherited modules, such as com.google.gwt.user.User -->
  <inherits name="com.google.gwt.http.HTTP"/>
  <!-- additional module settings -->
</module>

Method Summary

Modifier and Type	Method	Description
static String	decode(String encodedURL)	Returns a string where all URL escape sequences have been converted back to their original character representations.
static String	decodeComponent(String encodedURLComponent)	Deprecated. Use decodeQueryString(String)
static String	decodeComponent(String encodedURLComponent, boolean fromQueryString)	Deprecated. Use decodeQueryString(String), decodePathSegment(String)
static String	decodePathSegment(String encodedURLComponent)	Returns a string where all URL component escape sequences have been converted back to their original character representations.
static String	decodeQueryString(String encodedURLComponent)	Returns a string where all URL component escape sequences have been converted back to their original character representations.
static String	encode(String decodedURL)	Returns a string where all characters that are not valid for a complete URL have been escaped.
static String	encodeComponent(String decodedURLComponent)	Deprecated. Use encodeQueryString(String)
static String	encodeComponent(String decodedURLComponent, boolean queryStringSpaces)	Deprecated. Use encodeQueryString(String), encodePathSegment(String)
static String	encodePathSegment(String decodedURLComponent)	Returns a string where all characters that are not valid for a URL component have been escaped.
static String	encodeQueryString(String decodedURLComponent)	Returns a string where all characters that are not valid for a URL component have been escaped.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

decode

public static String decode(String encodedURL)

Returns a string where all URL escape sequences have been converted back to their original character representations.

Parameters:

encodedURL - string containing encoded URL encoded sequences

Returns:

string with no encoded URL encoded sequences

Throws:

NullPointerException - if encodedURL is null

decodeComponent

@Deprecated
public static String decodeComponent(String encodedURLComponent)

Deprecated.

Use decodeQueryString(String)

Returns a string where all URL component escape sequences have been converted back to their original character representations.

Note: this method will convert the space character escape short form, '+', into a space. It should therefore only be used for query-string parts.

Parameters:

encodedURLComponent - string containing encoded URL component sequences

Returns:

string with no encoded URL component encoded sequences

Throws:

NullPointerException - if encodedURLComponent is null

decodeComponent

@Deprecated
public static String decodeComponent(String encodedURLComponent,
 boolean fromQueryString)

Deprecated.

Use decodeQueryString(String), decodePathSegment(String)

Returns a string where all URL component escape sequences have been converted back to their original character representations.

Parameters:

encodedURLComponent - string containing encoded URL component sequences

fromQueryString - if true, +'s will be turned into spaces, otherwise they'll be kept as-is.

Returns:

string with no encoded URL component encoded sequences

Throws:

NullPointerException - if encodedURLComponent is null

decodePathSegment

public static String decodePathSegment(String encodedURLComponent)

Returns a string where all URL component escape sequences have been converted back to their original character representations.

Parameters:

encodedURLComponent - string containing encoded URL component sequences

Returns:

string with no encoded URL component encoded sequences

Throws:

NullPointerException - if encodedURLComponent is null

decodeQueryString

public static String decodeQueryString(String encodedURLComponent)

Returns a string where all URL component escape sequences have been converted back to their original character representations.

Note: this method will convert the space character escape short form, '+', into a space. It should therefore only be used for query-string parts.

Parameters:

encodedURLComponent - string containing encoded URL component sequences

Returns:

string with no encoded URL component encoded sequences

Throws:

NullPointerException - if encodedURLComponent is null

encode

public static String encode(String decodedURL)

Returns a string where all characters that are not valid for a complete URL have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

   - _ . ! ~ * ' ( )
   

• URL component delimiter characters:

   ; / ? : & = + $ , #
   

Parameters:

decodedURL - a string containing URL characters that may require encoding

Returns:

a string with all invalid URL characters escaped

Throws:

NullPointerException - if decodedURL is null

encodeComponent

@Deprecated
public static String encodeComponent(String decodedURLComponent)

Deprecated.

Use encodeQueryString(String)

Returns a string where all characters that are not valid for a URL component have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

Note: this method will convert any the space character into its escape short form, '+' rather than %20. It should therefore only be used for query-string parts.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

  - _ . ! ~ * ' ( )

Notice that this method does encode the URL component delimiter characters:

 ; / ? : & = + $ , #
 

Parameters:

decodedURLComponent - a string containing invalid URL characters

Returns:

a string with all invalid URL characters escaped

Throws:

NullPointerException - if decodedURLComponent is null

encodeComponent

@Deprecated
public static String encodeComponent(String decodedURLComponent,
 boolean queryStringSpaces)

Deprecated.

Use encodeQueryString(String), encodePathSegment(String)

Returns a string where all characters that are not valid for a URL component have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

The following character sets are not escaped by this method:

• ASCII digits or letters
+ *
• ASCII punctuation characters:

  - _ . ! ~ * ' ( )

Notice that this method does encode the URL component delimiter characters:

 ; / ? : & = + $ , #
 

Parameters:

decodedURLComponent - a string containing invalid URL characters

queryStringSpaces - if true, spaces will be encoded as +'s.

Returns:

a string with all invalid URL characters escaped

Throws:

NullPointerException - if decodedURLComponent is null

encodePathSegment

public static String encodePathSegment(String decodedURLComponent)

Returns a string where all characters that are not valid for a URL component have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

  - _ . ! ~ * ' ( )

Notice that this method does encode the URL component delimiter characters:

 ; / ? : & = + $ , #
 

Parameters:

decodedURLComponent - a string containing invalid URL characters

Returns:

a string with all invalid URL characters escaped

Throws:

NullPointerException - if decodedURLComponent is null

encodeQueryString

public static String encodeQueryString(String decodedURLComponent)

Returns a string where all characters that are not valid for a URL component have been escaped. The escaping of a character is done by converting it into its UTF-8 encoding and then encoding each of the resulting bytes as a %xx hexadecimal escape sequence.

Note: this method will convert any the space character into its escape short form, '+' rather than %20. It should therefore only be used for query-string parts.

The following character sets are not escaped by this method:

• ASCII digits or letters
• ASCII punctuation characters:

  - _ . ! ~ * ' ( )

Notice that this method does encode the URL component delimiter characters:

 ; / ? : & = + $ , #
 

Parameters:

decodedURLComponent - a string containing invalid URL characters

Returns:

a string with all invalid URL characters escaped

Throws:

NullPointerException - if decodedURLComponent is null