Module org.apache.jena.core

Package org.apache.jena.util

Class SplitIRI

java.lang.Object

org.apache.jena.util.SplitIRI

public class SplitIRI
extends Object

Code to split an URI or IRI into prefix and local part. Historically, 'prefix' is referred to as 'namespace' reflecting RDF/XML history.

For display, use localname(java.lang.String) and namespace(java.lang.String). This follows Turtle, adds some pragmatic rulesm but does not escape any characters. A URI is split never split before the last / or last #, if present. See splitpoint(java.lang.String) for more details.

This code form the machinery behind Node.getLocalName() Node.getNameSpace() for URI Nodes.

localnameTTL(java.lang.String) is strict Turtle; it is the same local name as before, but escaped if necessary.

The functions namespaceXML(java.lang.String) and localnameXML(java.lang.String) apply the rules for XML qnames.

Constructor Summary

Constructors

Constructor	Description
SplitIRI()

Method Summary

Modifier and Type	Method	Description
static String	localname(String string)	Calculate a localname - do not escape PN_LOCAL_ESC.
static String	localnameTTL(String string)	Calculate a localname - enforce legal Turtle escape PN_LOCAL_ESC, check for final '.' Use with namespaceTTL(java.lang.String)
static String	localnameXML(String string)	Localname, according to XML qname rules.
static String	namespace(String string)	Return the 'namespace' (prefix) for a URI string.
static String	namespaceTTL(String string)	Return the 'namespace' (prefix) for a URI string, legal for Turtle and goes with localnameTTL(java.lang.String)
static String	namespaceXML(String string)	Namespace, according to XML qname rules.
static int	splitpoint(String uri)	Find the URI split point, return the index into the string that is the first character of a legal Turtle local name.
static int	splitXML(String string)	Split point, according to XML qname rules.

Methods inherited from class java.lang.Object

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

Constructor Details

SplitIRI

public SplitIRI()

Method Details

namespace

public static String namespace(String string)

Return the 'namespace' (prefix) for a URI string. Use with localname(java.lang.String)

localname

public static String localname(String string)

Calculate a localname - do not escape PN_LOCAL_ESC. This is not guaranteed to be legal Turtle. Use with namespace(java.lang.String)

namespaceTTL

public static String namespaceTTL(String string)

Return the 'namespace' (prefix) for a URI string, legal for Turtle and goes with localnameTTL(java.lang.String)

localnameTTL

public static String localnameTTL(String string)

Calculate a localname - enforce legal Turtle escape PN_LOCAL_ESC, check for final '.' Use with namespaceTTL(java.lang.String)

splitpoint

public static int splitpoint(String uri)

Find the URI split point, return the index into the string that is the first character of a legal Turtle local name.

This is a pragmatic choice, not just finding the maximal point. For example, with escaping '/' can be included but that means http://example/path/abc could split to give http://example/ and path/abc .

Split URN's after ':'.

Parameters:

uri - URI string

Returns:

The split point, or -1 for "not found".

splitXML

public static int splitXML(String string)

Split point, according to XML qname rules. This is the longest NCName at the end of the uri. See Util.splitNamespaceXML(java.lang.String).

namespaceXML

public static String namespaceXML(String string)

Namespace, according to XML qname rules. Use with localnameXML(java.lang.String).

localnameXML

public static String localnameXML(String string)

Localname, according to XML qname rules.