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## org.apache.axis.types
Class URI

    java.lang.Object
      |
      +--org.apache.axis.types.URI

All Implemented Interfaces:
  java.io.Serializable

public class URI
extends java.lang.Object
implements java.io.Serializable

Axis Note: This class was 'borrowed' from Xerces 2.0.2

A class to represent a Uniform Resource Identifier (URI). This class is designed to handle the parsing of URIs and provide access to the various components (scheme, host, port, userinfo, path, query string and fragment) that may constitute a URI.

Parsing of a URI specification is done according to the URI syntax described in RFC 2396 . Every URI consists of a scheme, followed by a colon (':'), followed by a scheme-specific part. For URIs that follow the "generic URI" syntax, the scheme- specific part begins with two slashes ("//") and may be followed by an authority segment (comprised of user information, host, and port), path segment, query segment and fragment. Note that RFC 2396 no longer specifies the use of the parameters segment and excludes the "user:password" syntax as part of the authority segment. If "user:password" appears in a URI, the entire user/password string is stored as userinfo.

For URIs that do not follow the "generic URI" syntax (e.g. mailto), the entire scheme-specific part is treated as the "path" portion of the URI.

Note that, unlike the java.net.URL class, this class does not provide any built-in network access functionality nor does it provide any scheme-specific functionality (for example, it does not know a default port for a specific scheme). Rather, it only knows the grammar and basic set of operations that can be applied to a URI.

Version:
  Xerces 2.0.2: Id: URI.java,v 1.6 2002/05/10 16:30:10 sandygao Exp
See Also:
  Serialized Form

Nested Class Summary
`static class` | `URI.MalformedURIException` MalformedURIExceptions are thrown in the process of building a URI or setting fields on a URI when an operation would result in an invalid URI specification.

Constructor Summary
`URI()` Construct a new and uninitialized URI.
`URI(java.lang.String p_uriSpec)` Construct a new URI from a URI specification string.
`URI(java.lang.String p_scheme, java.lang.String p_schemeSpecificPart)` Construct a new URI that does not follow the generic URI syntax.
`URI(java.lang.String p_scheme, java.lang.String p_userinfo, java.lang.String p_host, int p_port, java.lang.String p_path, java.lang.String p_queryString, java.lang.String p_fragment)` Construct a new URI that follows the generic URI syntax from its component parts.
`URI(java.lang.String p_scheme, java.lang.String p_host, java.lang.String p_path, java.lang.String p_queryString, java.lang.String p_fragment)` Construct a new URI that follows the generic URI syntax from its component parts.
`URI(URI p_other)` Construct a new URI from another URI.
`URI(URI p_base, java.lang.String p_uriSpec)` Construct a new URI from a base URI and a URI specification string.

Method Summary
`void` | `appendPath(java.lang.String p_addToPath)` Append to the end of the path of this URI.
`boolean` | `equals(java.lang.Object p_test)` Determines if the passed-in Object is equivalent to this URI.
`java.lang.String` | `getFragment()` Get the fragment for this URI.
`java.lang.String` | `getHost()` Get the host for this URI.
`java.lang.String` | `getPath()` Get the path for this URI.
`java.lang.String` | `getPath(boolean p_includeQueryString, boolean p_includeFragment)` Get the path for this URI (optionally with the query string and fragment).
`int` | `getPort()` Get the port for this URI.
`java.lang.String` | `getQueryString()` Get the query string for this URI.
`java.lang.String` | `getScheme()` Get the scheme for this URI.
`java.lang.String` | `getSchemeSpecificPart()` Get the scheme-specific part for this URI (everything following the scheme and the first colon).
`java.lang.String` | `getUserinfo()` Get the userinfo for this URI.
`int` | `hashCode()` Returns a hash-code value for this URI.
`static boolean` | `isConformantSchemeName(java.lang.String p_scheme)` Determine whether a scheme conforms to the rules for a scheme name.
`boolean` | `isGenericURI()` Get the indicator as to whether this URI uses the "generic URI" syntax.
`static boolean` | `isWellFormedAddress(java.lang.String p_address)` Determine whether a string is syntactically capable of representing a valid IPv4 address or the domain name of a network host.
`void` | `setFragment(java.lang.String p_fragment)` Set the fragment for this URI.
`void` | `setHost(java.lang.String p_host)` Set the host for this URI.
`void` | `setPath(java.lang.String p_path)` Set the path for this URI.
`void` | `setPort(int p_port)` Set the port for this URI.
`void` | `setQueryString(java.lang.String p_queryString)` Set the query string for this URI.
`void` | `setScheme(java.lang.String p_scheme)` Set the scheme for this URI.
`void` | `setUserinfo(java.lang.String p_userinfo)` Set the userinfo for this URI.
`java.lang.String` | `toString()` Get the URI as a string specification.

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

### URI

    public URI()

  Construct a new and uninitialized URI.

### URI

    public URI(URI p_other)

  Construct a new URI from another URI. All fields for this URI are set equal to the fields of the URI passed in.

Parameters:
  `p_other` - the URI to copy (cannot be null)

### URI

    public URI(java.lang.String p_uriSpec)
        throws URI.MalformedURIException

  Construct a new URI from a URI specification string. If the specification follows the "generic URI" syntax, (two slashes following the first colon), the specification will be parsed accordingly - setting the scheme, userinfo, host,port, path, query string and fragment fields as necessary. If the specification does not follow the "generic URI" syntax, the specification is parsed into a scheme and scheme-specific part (stored as the path) only.

Parameters:
  `p_uriSpec` - the URI specification string (cannot be null or empty)
Throws:
  `URI.MalformedURIException` - if p_uriSpec violates any syntax rules

### URI

    public URI(URI p_base,
               java.lang.String p_uriSpec)
        throws URI.MalformedURIException

  Construct a new URI from a base URI and a URI specification string. The URI specification string may be a relative URI.

Parameters:
  `p_base` - the base URI (cannot be null if p_uriSpec is null or empty)
  `p_uriSpec` - the URI specification string (cannot be null or empty if p_base is null)
Throws:
  `URI.MalformedURIException` - if p_uriSpec violates any syntax rules

### URI

    public URI(java.lang.String p_scheme,
               java.lang.String p_schemeSpecificPart)
        throws URI.MalformedURIException

  Construct a new URI that does not follow the generic URI syntax. Only the scheme and scheme-specific part (stored as the path) are initialized.

Parameters:
  `p_scheme` - the URI scheme (cannot be null or empty)
  `p_schemeSpecificPart` - the scheme-specific part (cannot be null or empty)
Throws:
  `URI.MalformedURIException` - if p_scheme violates any syntax rules

### URI

    public URI(java.lang.String p_scheme,
               java.lang.String p_host,
               java.lang.String p_path,
               java.lang.String p_queryString,
               java.lang.String p_fragment)
        throws URI.MalformedURIException

  Construct a new URI that follows the generic URI syntax from its component parts. Each component is validated for syntax and some basic semantic checks are performed as well. See the individual setter methods for specifics.

Parameters:
  `p_scheme` - the URI scheme (cannot be null or empty)
  `p_host` - the hostname or IPv4 address for the URI
  `p_path` - the URI path - if the path contains '?' or '#', then the query string and/or fragment will be set from the path; however, if the query and fragment are specified both in the path and as separate parameters, an exception is thrown
  `p_queryString` - the URI query string (cannot be specified if path is null)
  `p_fragment` - the URI fragment (cannot be specified if path is null)
Throws:
  `URI.MalformedURIException` - if any of the parameters violates syntax rules or semantic rules

### URI

    public URI(java.lang.String p_scheme,
               java.lang.String p_userinfo,
               java.lang.String p_host,
               int p_port,
               java.lang.String p_path,
               java.lang.String p_queryString,
               java.lang.String p_fragment)
        throws URI.MalformedURIException

  Construct a new URI that follows the generic URI syntax from its component parts. Each component is validated for syntax and some basic semantic checks are performed as well. See the individual setter methods for specifics.

Parameters:
  `p_scheme` - the URI scheme (cannot be null or empty)
  `p_userinfo` - the URI userinfo (cannot be specified if host is null)
  `p_host` - the hostname or IPv4 address for the URI
  `p_port` - the URI port (may be -1 for "unspecified"; cannot be specified if host is null)
  `p_path` - the URI path - if the path contains '?' or '#', then the query string and/or fragment will be set from the path; however, if the query and fragment are specified both in the path and as separate parameters, an exception is thrown
  `p_queryString` - the URI query string (cannot be specified if path is null)
  `p_fragment` - the URI fragment (cannot be specified if path is null)
Throws:
  `URI.MalformedURIException` - if any of the parameters violates syntax rules or semantic rules

Method Detail

### getScheme

    public java.lang.String getScheme()

  Get the scheme for this URI.

  Returns:
    the scheme for this URI

### getSchemeSpecificPart

    public java.lang.String getSchemeSpecificPart()

  Get the scheme-specific part for this URI (everything following the scheme and the first colon). See RFC 2396 Section 5.2 for spec.

  Returns:
    the scheme-specific part for this URI

### getUserinfo

    public java.lang.String getUserinfo()

  Get the userinfo for this URI.

  Returns:
    the userinfo for this URI (null if not specified).

### getHost

    public java.lang.String getHost()

  Get the host for this URI.

  Returns:
    the host for this URI (null if not specified).

### getPort

    public int getPort()

  Get the port for this URI.

  Returns:
    the port for this URI (-1 if not specified).

### getPath

    public java.lang.String getPath(boolean p_includeQueryString,
                                    boolean p_includeFragment)

  Get the path for this URI (optionally with the query string and fragment).

  Parameters:
    `p_includeQueryString` - if true (and query string is not null), then a "?" followed by the query string will be appended
    `p_includeFragment` - if true (and fragment is not null), then a "#" followed by the fragment will be appended
  Returns:
    the path for this URI possibly including the query string and fragment

### getPath

    public java.lang.String getPath()

  Get the path for this URI. Note that the value returned is the path only and does not include the query string or fragment.

  Returns:
    the path for this URI.

### getQueryString

    public java.lang.String getQueryString()

  Get the query string for this URI.

  Returns:
    the query string for this URI. Null is returned if there was no "?" in the URI spec, empty string if there was a "?" but no query string following it.

### getFragment

    public java.lang.String getFragment()

  Get the fragment for this URI.

  Returns:
    the fragment for this URI. Null is returned if there was no "#" in the URI spec, empty string if there was a "#" but no fragment following it.

### setScheme

    public void setScheme(java.lang.String p_scheme)
                   throws URI.MalformedURIException

  Set the scheme for this URI. The scheme is converted to lowercase before it is set.

  Parameters:
    `p_scheme` - the scheme for this URI (cannot be null)
  Throws:
    `URI.MalformedURIException` - if p_scheme is not a conformant scheme name

### setUserinfo

    public void setUserinfo(java.lang.String p_userinfo)
                     throws URI.MalformedURIException

  Set the userinfo for this URI. If a non-null value is passed in and the host value is null, then an exception is thrown.

  Parameters:
    `p_userinfo` - the userinfo for this URI
  Throws:
    `URI.MalformedURIException` - if p_userinfo contains invalid characters

### setHost

    public void setHost(java.lang.String p_host)
                 throws URI.MalformedURIException

  Set the host for this URI. If null is passed in, the userinfo field is also set to null and the port is set to -1.

  Parameters:
    `p_host` - the host for this URI
  Throws:
    `URI.MalformedURIException` - if p_host is not a valid IP address or DNS hostname.

### setPort

    public void setPort(int p_port)
                 throws URI.MalformedURIException

  Set the port for this URI. -1 is used to indicate that the port is not specified, otherwise valid port numbers are between 0 and 65535. If a valid port number is passed in and the host field is null, an exception is thrown.

  Parameters:
    `p_port` - the port number for this URI
  Throws:
    `URI.MalformedURIException` - if p_port is not -1 and not a valid port number

### setPath

    public void setPath(java.lang.String p_path)
                 throws URI.MalformedURIException

  Set the path for this URI. If the supplied path is null, then the query string and fragment are set to null as well. If the supplied path includes a query string and/or fragment, these fields will be parsed and set as well. Note that, for URIs following the "generic URI" syntax, the path specified should start with a slash. For URIs that do not follow the generic URI syntax, this method sets the scheme-specific part.

  Parameters:
    `p_path` - the path for this URI (may be null)
  Throws:
    `URI.MalformedURIException` - if p_path contains invalid characters

### appendPath

    public void appendPath(java.lang.String p_addToPath)
                    throws URI.MalformedURIException

  Append to the end of the path of this URI. If the current path does not end in a slash and the path to be appended does not begin with a slash, a slash will be appended to the current path before the new segment is added. Also, if the current path ends in a slash and the new segment begins with a slash, the extra slash will be removed before the new segment is appended.

  Parameters:
    `p_addToPath` - the new segment to be added to the current path
  Throws:
    `URI.MalformedURIException` - if p_addToPath contains syntax errors

### setQueryString

    public void setQueryString(java.lang.String p_queryString)
                        throws URI.MalformedURIException

  Set the query string for this URI. A non-null value is valid only if this is an URI conforming to the generic URI syntax and the path value is not null.

  Parameters:
    `p_queryString` - the query string for this URI
  Throws:
    `URI.MalformedURIException` - if p_queryString is not null and this URI does not conform to the generic URI syntax or if the path is null

### setFragment

    public void setFragment(java.lang.String p_fragment)
                     throws URI.MalformedURIException

  Set the fragment for this URI. A non-null value is valid only if this is a URI conforming to the generic URI syntax and the path value is not null.

  Parameters:
    `p_fragment` - the fragment for this URI
  Throws:
    `URI.MalformedURIException` - if p_fragment is not null and this URI does not conform to the generic URI syntax or if the path is null

### equals

    public boolean equals(java.lang.Object p_test)

  Determines if the passed-in Object is equivalent to this URI.

  Overrides:
    `equals` in class `java.lang.Object`
  Parameters:
    `p_test` - the Object to test for equality.
  Returns:
    true if p_test is a URI with all values equal to this URI, false otherwise

### toString

    public java.lang.String toString()

  Get the URI as a string specification. See RFC 2396 Section 5.2.

  Overrides:
    `toString` in class `java.lang.Object`
  Returns:
    the URI string specification

### isGenericURI

    public boolean isGenericURI()

  Get the indicator as to whether this URI uses the "generic URI" syntax.

  Returns:
    true if this URI uses the "generic URI" syntax, false otherwise

### isConformantSchemeName

    public static boolean isConformantSchemeName(java.lang.String p_scheme)

  Determine whether a scheme conforms to the rules for a scheme name. A scheme is conformant if it starts with an alphanumeric, and contains only alphanumerics, '+','-' and '.'.

  Returns:
    true if the scheme is conformant, false otherwise

### isWellFormedAddress

    public static boolean isWellFormedAddress(java.lang.String p_address)

  Determine whether a string is syntactically capable of representing a valid IPv4 address or the domain name of a network host. A valid IPv4 address consists of four decimal digit groups separated by a '.'. A hostname consists of domain labels (each of which must begin and end with an alphanumeric but may contain '-') separated & by a '.'. See RFC 2396 Section 3.2.2.

  Returns:
    true if the string is a syntactically valid IPv4 address or hostname

### hashCode

    public int hashCode()

  Returns a hash-code value for this URI. The hash code is based upon all of the URI's components, and satisfies the general contract of the `Object.hashCode` method.

  Overrides:
    `hashCode` in class `java.lang.Object`
  Returns:
    A hash-code value for this URI

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