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org.apache.commons.httpclient.util
Class URIUtil

java.lang.Object
  |
  +--org.apache.commons.httpclient.util.URIUtil
public class URIUtil
extends java.lang.Object

The URI escape and character encoding and decoding utility. It's compatible with HttpURL rather than URI.

Version:
$Revision: 1.21 $ $Date: 2002/03/14 15:14:01
Author:
Sung-Gu

Inner Class Summary
protected static class URIUtil.Coder
          The basic and internal utility for URI escape and character encoding and decoding.
 
Field Summary
protected static java.util.BitSet empty
           
 
Constructor Summary
URIUtil()
           
 
Method Summary
static java.lang.String decode(java.lang.String escaped)
          Unescape and decode a given string regarded as an escaped string with the default protocol charset.
static java.lang.String decode(java.lang.String escaped, java.lang.String charset)
          Unescape and decode a given string regarded as an escaped string.
static java.lang.String encode(java.lang.String unescaped, java.util.BitSet allowed)
          Escape and encode a given string with allowed characters not to be escaped and the default protocol charset.
static java.lang.String encode(java.lang.String unescaped, java.util.BitSet allowed, java.lang.String charset)
          Escape and encode a given string with allowed characters not to be escaped and a given charset.
static java.lang.String encodeAll(java.lang.String unescaped)
          Get the all escaped and encoded string with the default protocl charset.
static java.lang.String encodeAll(java.lang.String unescaped, java.lang.String charset)
          Get the all escaped and encoded string with a given charset.
static java.lang.String encodePath(java.lang.String unescaped)
          Escape and encode a string regarded as the path component of an URI with the default protocol charset.
static java.lang.String encodePath(java.lang.String unescaped, java.lang.String charset)
          Escape and encode a string regarded as the path component of an URI with a given charset.
static java.lang.String encodePathQuery(java.lang.String unescaped)
          Escape and encode a string regarded as the path and query components of an URI with the default protocol charset.
static java.lang.String encodePathQuery(java.lang.String unescaped, java.lang.String charset)
          Escape and encode a string regarded as the path and query components of an URI with a given charset.
static java.lang.String encodeQuery(java.lang.String unescaped)
          Escape and encode a string regarded as the query component of an URI with the default protocol charset.
static java.lang.String encodeQuery(java.lang.String unescaped, java.lang.String charset)
          Escape and encode a string regarded as the query component of an URI with a given charset.
static java.lang.String encodeWithinAuthority(java.lang.String unescaped)
          Escape and encode a string regarded as within the authority component of an URI with the default protocol charset.
static java.lang.String encodeWithinAuthority(java.lang.String unescaped, java.lang.String charset)
          Escape and encode a string regarded as within the authority component of an URI with a given charset.
static java.lang.String encodeWithinPath(java.lang.String unescaped)
          Escape and encode a string regarded as within the path component of an URI with the default protocol charset.
static java.lang.String encodeWithinPath(java.lang.String unescaped, java.lang.String charset)
          Escape and encode a string regarded as within the path component of an URI with a given charset.
static java.lang.String encodeWithinQuery(java.lang.String unescaped)
          Escape and encode a string regarded as within the query component of an URI with the default protocol charset.
static java.lang.String encodeWithinQuery(java.lang.String unescaped, java.lang.String charset)
          Escape and encode a string regarded as within the query component of an URI with a given charset.
static java.lang.String getFromPath(java.lang.String uri)
          Get the path of an URI and its rest part.
static java.lang.String getName(java.lang.String uri)
          Get the basename of an URI.
static java.lang.String getPath(java.lang.String uri)
          Get the path of an URI.
static java.lang.String getPathQuery(java.lang.String uri)
          Get the path and query of an URI.
static java.lang.String getQuery(java.lang.String uri)
          Get the query of an URI.
static java.lang.String toDocumentCharset(java.lang.String target)
          Deprecated. Do not use. To be removed
static java.lang.String toDocumentCharset(java.lang.String target, java.lang.String charset)
          Deprecated. Do not use. To be removed
static java.lang.String toProtocolCharset(java.lang.String target)
          Deprecated. Do not use. To be removed
static java.lang.String toProtocolCharset(java.lang.String target, java.lang.String charset)
          Deprecated. Do not use. To be removed
static java.lang.String toUsingCharset(java.lang.String target, java.lang.String fromCharset, java.lang.String toCharset)
          Deprecated. Do not use. To be removed
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

empty

protected static final java.util.BitSet empty
Constructor Detail

URIUtil

public URIUtil()
Method Detail

getName

public static java.lang.String getName(java.lang.String uri)
Get the basename of an URI. It's possibly an empty string.
Parameters:
uri - a string regarded an URI
Returns:
the basename string; an empty string if the path ends with slash

getQuery

public static java.lang.String getQuery(java.lang.String uri)
Get the query of an URI.
Parameters:
uri - a string regarded an URI
Returns:
the query string; null if empty or undefined

getPath

public static java.lang.String getPath(java.lang.String uri)
Get the path of an URI.
Parameters:
uri - a string regarded an URI
Returns:
the path string

getPathQuery

public static java.lang.String getPathQuery(java.lang.String uri)
Get the path and query of an URI.
Parameters:
uri - a string regarded an URI
Returns:
the path and query string

getFromPath

public static java.lang.String getFromPath(java.lang.String uri)
Get the path of an URI and its rest part.
Parameters:
uri - a string regarded an URI
Returns:
the string from the path part

encodeAll

public static java.lang.String encodeAll(java.lang.String unescaped)
                                  throws URIException
Get the all escaped and encoded string with the default protocl charset. It's the same function to use encode(String unescaped, Bitset empty, URI.getDefaultProtocolCharset()).
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodeAll

public static java.lang.String encodeAll(java.lang.String unescaped,
                                         java.lang.String charset)
                                  throws URIException
Get the all escaped and encoded string with a given charset. It's the same function to use encode(String unescaped, Bitset empty, String charset).
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encodeWithinAuthority

public static java.lang.String encodeWithinAuthority(java.lang.String unescaped)
                                              throws URIException
Escape and encode a string regarded as within the authority component of an URI with the default protocol charset. Within the authority component, the characters ";", ":", "@", "?", and "/" are reserved.
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodeWithinAuthority

public static java.lang.String encodeWithinAuthority(java.lang.String unescaped,
                                                     java.lang.String charset)
                                              throws URIException
Escape and encode a string regarded as within the authority component of an URI with a given charset. Within the authority component, the characters ";", ":", "@", "?", and "/" are reserved.
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encodePathQuery

public static java.lang.String encodePathQuery(java.lang.String unescaped)
                                        throws URIException
Escape and encode a string regarded as the path and query components of an URI with the default protocol charset.
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodePathQuery

public static java.lang.String encodePathQuery(java.lang.String unescaped,
                                               java.lang.String charset)
                                        throws URIException
Escape and encode a string regarded as the path and query components of an URI with a given charset.
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encodeWithinPath

public static java.lang.String encodeWithinPath(java.lang.String unescaped)
                                         throws URIException
Escape and encode a string regarded as within the path component of an URI with the default protocol charset. The path may consist of a sequence of path segments separated by a single slash "/" character. Within a path segment, the characters "/", ";", "=", and "?" are reserved.
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodeWithinPath

public static java.lang.String encodeWithinPath(java.lang.String unescaped,
                                                java.lang.String charset)
                                         throws URIException
Escape and encode a string regarded as within the path component of an URI with a given charset. The path may consist of a sequence of path segments separated by a single slash "/" character. Within a path segment, the characters "/", ";", "=", and "?" are reserved.
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encodePath

public static java.lang.String encodePath(java.lang.String unescaped)
                                   throws URIException
Escape and encode a string regarded as the path component of an URI with the default protocol charset.
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodePath

public static java.lang.String encodePath(java.lang.String unescaped,
                                          java.lang.String charset)
                                   throws URIException
Escape and encode a string regarded as the path component of an URI with a given charset.
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encodeWithinQuery

public static java.lang.String encodeWithinQuery(java.lang.String unescaped)
                                          throws URIException
Escape and encode a string regarded as within the query component of an URI with the default protocol charset. When a query comprise the name and value pairs, it is used in order to encode each name and value string. The reserved special characters within a query component are being included in encoding the query.
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodeWithinQuery

public static java.lang.String encodeWithinQuery(java.lang.String unescaped,
                                                 java.lang.String charset)
                                          throws URIException
Escape and encode a string regarded as within the query component of an URI with a given charset. When a query comprise the name and value pairs, it is used in order to encode each name and value string. The reserved special characters within a query component are being included in encoding the query.
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encodeQuery

public static java.lang.String encodeQuery(java.lang.String unescaped)
                                    throws URIException
Escape and encode a string regarded as the query component of an URI with the default protocol charset. When a query string is not misunderstood the reserved special characters ("&", "=", "+", ",", and "$") within a query component, this method is recommended to use in encoding the whole query.
Parameters:
unescaped - an unescaped string
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), encode(java.lang.String, java.util.BitSet)

encodeQuery

public static java.lang.String encodeQuery(java.lang.String unescaped,
                                           java.lang.String charset)
                                    throws URIException
Escape and encode a string regarded as the query component of an URI with a given charset. When a query string is not misunderstood the reserved special characters ("&", "=", "+", ",", and "$") within a query component, this method is recommended to use in encoding the whole query.
Parameters:
unescaped - an unescaped string
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
encode(java.lang.String, java.util.BitSet)

encode

public static java.lang.String encode(java.lang.String unescaped,
                                      java.util.BitSet allowed)
                               throws URIException
Escape and encode a given string with allowed characters not to be escaped and the default protocol charset.
Parameters:
unescaped - a string
allowed - allowed characters not to be escaped
Returns:
the escaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), URIUtil.Coder.encode(java.lang.String, java.util.BitSet, java.lang.String)

encode

public static java.lang.String encode(java.lang.String unescaped,
                                      java.util.BitSet allowed,
                                      java.lang.String charset)
                               throws URIException
Escape and encode a given string with allowed characters not to be escaped and a given charset.
Parameters:
unescaped - a string
allowed - allowed characters not to be escaped
charset - the charset
Returns:
the escaped string
Throws:
URIException - if the charset is not supported
See Also:
URIUtil.Coder.encode(java.lang.String, java.util.BitSet, java.lang.String)

decode

public static java.lang.String decode(java.lang.String escaped)
                               throws URIException
Unescape and decode a given string regarded as an escaped string with the default protocol charset.
Parameters:
escaped - a string
Returns:
the unescaped string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset(), URIUtil.Coder.decode(char[], java.lang.String)

decode

public static java.lang.String decode(java.lang.String escaped,
                                      java.lang.String charset)
                               throws URIException
Unescape and decode a given string regarded as an escaped string.
Parameters:
escaped - a string
charset - the charset
Returns:
the unescaped string
Throws:
URIException - if the charset is not supported
See Also:
URIUtil.Coder.decode(char[], java.lang.String)

toProtocolCharset

public static java.lang.String toProtocolCharset(java.lang.String target)
                                          throws URIException
Deprecated. Do not use. To be removed

Convert a target string to the specified character encoded string with the default protocol charset.
Parameters:
target - a target string
Returns:
the protocol character encoded string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultProtocolCharset()

toProtocolCharset

public static java.lang.String toProtocolCharset(java.lang.String target,
                                                 java.lang.String charset)
                                          throws URIException
Deprecated. Do not use. To be removed

Convert a target string to the specified character encoded string with a given protocol charset.
Parameters:
target - a target string
charset - the transformed protocol charset
Returns:
the protocol character encoded string
Throws:
URIException - if the charset is not supported

toDocumentCharset

public static java.lang.String toDocumentCharset(java.lang.String target)
                                          throws URIException
Deprecated. Do not use. To be removed

Convert a target string to the specified character encoded string with the default document charset.
Parameters:
target - a target string
Returns:
the document character encoded string
Throws:
URIException - if the default protocol charset is not supported
See Also:
URI.getDefaultDocumentCharset()

toDocumentCharset

public static java.lang.String toDocumentCharset(java.lang.String target,
                                                 java.lang.String charset)
                                          throws URIException
Deprecated. Do not use. To be removed

Convert a target string to the specified character encoded string with a given document charset.
Parameters:
target - a target string
charset - the transformed document charset
Returns:
the document character encoded string
Throws:
URIException - if the charset is not supported

toUsingCharset

public static java.lang.String toUsingCharset(java.lang.String target,
                                              java.lang.String fromCharset,
                                              java.lang.String toCharset)
                                       throws URIException
Deprecated. Do not use. To be removed

Convert a target string from the fromCharset charset to the toCharset charset.

What if the document charset is ISO-8859-1 and the protocol charset is UTF-8, when it's read from the document part and is used in the protocol part, the use of the method will be toUsingCharset(the string, "ISO-8859-1", "UTF-8").

Parameters:
target - a target string
fromCharset - the previous charset
toCharset - the changing charset
Returns:
the document character encoded string
Throws:
URIException - if either of the charsets are not supported
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