Package net.ontopia.infoset.impl.basic

Class URILocator

java.lang.Object

net.ontopia.infoset.impl.basic.AbstractLocator

net.ontopia.infoset.impl.basic.URILocator

All Implemented Interfaces:

Externalizable, Serializable, LocatorIF

public class URILocator
extends AbstractLocator
implements Externalizable

PUBLIC: A Uniform Resource Identifier locator. Only URI locators should be used with this locator class. The notation is 'URI'.

The address is always normalized by the constructor. The address given to the constructor must be absolute.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected String	address
protected short	authorityEnd
protected short	fragmentStart
protected short	lastSlash
protected short	schemeEnd

Constructor Summary

Constructors

Modifier	Constructor	Description
	URILocator()	INTERNAL: No-argument constructor used by serialization.
	URILocator(File file)	PUBLIC: Creates a URILocator containing a file URL referring to the file represented by the File object.
	URILocator(String address)	PUBLIC: Creates a URILocator representing the URI given.
protected	URILocator(String normalized, short schemeEnd, short authorityEnd, short lastSlash, short fragmentStart)	INTERNAL: Special constructor used when resolving a URI relative to a base URI.
	URILocator(URL url)	PUBLIC: Creates a URILocator representing the URL given.

Method Summary

Modifier and Type	Method	Description
static URILocator	create(String uriAddress)	INTERNAL: Parses the URI and returns an instance of URILocator if the URI is valid.
boolean	equals(Object object)	PUBLIC: Two LocatorIFs are considered equal if they have the same address and notation properties.
String	getAddress()	PUBLIC: Returns the locator address in absolute and normalized form.
String	getExternalForm()	PUBLIC: Returns the address of the locator in external form; that is, with special characters that need to be escaped escaped using the escape syntax of the locator notation.
String	getNotation()	PUBLIC: Gets the locator notation.
int	hashCode()	PUBLIC: Returns the hashcode of the address property.
protected String	normalize(String address)
int	parseDirectoryPart(char[] uri, int ix, int length)
void	readExternal(ObjectInput in)
LocatorIF	resolveAbsolute(String rel)	PUBLIC: Given a locator address string that is relative to this locator, return an absolute locator.
protected static String	toExternalForm(String address)
void	writeExternal(ObjectOutput out)

Methods inherited from class net.ontopia.infoset.impl.basic.AbstractLocator

toString

Methods inherited from class java.lang.Object

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

Field Detail

address

protected String address

schemeEnd

protected short schemeEnd

authorityEnd

protected short authorityEnd

lastSlash

protected short lastSlash

fragmentStart

protected short fragmentStart

Constructor Detail

URILocator

public URILocator()

INTERNAL: No-argument constructor used by serialization. Do not use this constructor in application code.

URILocator

public URILocator(String address)
           throws MalformedURLException

PUBLIC: Creates a URILocator representing the URI given. Note that the URI string should be in external form, and that it must be absolute.

Throws:

MalformedURLException

URILocator

public URILocator(URL url)
           throws MalformedURLException

PUBLIC: Creates a URILocator representing the URL given.

Throws:

MalformedURLException

URILocator

public URILocator(File file)

PUBLIC: Creates a URILocator containing a file URL referring to the file represented by the File object.

Since:

1.3.4

URILocator

protected URILocator(String normalized,
                     short schemeEnd,
                     short authorityEnd,
                     short lastSlash,
                     short fragmentStart)

INTERNAL: Special constructor used when resolving a URI relative to a base URI. Since the base URI is already normalized we can avoid repeating the normalization, and thus save time.

Method Detail

normalize

protected String normalize(String address)
                    throws MalformedURLException

Throws:

MalformedURLException

getNotation

public String getNotation()

Description copied from interface: LocatorIF

PUBLIC: Gets the locator notation. The default notation is URI. Ontopia will never use notation names which begin with 'x-'. Notation names are case-insensitive.

Note that only the URI notation is supported in release OKS 4.0 and newer.

Specified by:

getNotation in interface LocatorIF

getAddress

public String getAddress()

Description copied from interface: LocatorIF

PUBLIC: Returns the locator address in absolute and normalized form. Whether addresses are case-sensitive or not depends on the locator notation.

Specified by:

getAddress in interface LocatorIF

resolveAbsolute

public LocatorIF resolveAbsolute(String rel)

Description copied from interface: LocatorIF

PUBLIC: Given a locator address string that is relative to this locator, return an absolute locator. If the input locator address is absolute the returned locator object will simply contain that absolute locator address.

Specified by:

resolveAbsolute in interface LocatorIF

getExternalForm

public String getExternalForm()

Description copied from interface: LocatorIF

PUBLIC: Returns the address of the locator in external form; that is, with special characters that need to be escaped escaped using the escape syntax of the locator notation.

Specified by:

getExternalForm in interface LocatorIF

toExternalForm

protected static String toExternalForm(String address)

parseDirectoryPart

public int parseDirectoryPart(char[] uri,
                              int ix,
                              int length)
                       throws MalformedURLException

Throws:

MalformedURLException

hashCode

public int hashCode()

Description copied from class: AbstractLocator

PUBLIC: Returns the hashcode of the address property. All subclasses of AbstractLocator must use the same hashCode implementation in order to guarantee interoperability. E.g. when looking up LocatorIFs in Maps.

Overrides:

hashCode in class AbstractLocator

equals

public boolean equals(Object object)

Description copied from class: AbstractLocator

PUBLIC: Two LocatorIFs are considered equal if they have the same address and notation properties.

Overrides:

equals in class AbstractLocator

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

create

public static URILocator create(String uriAddress)

INTERNAL: Parses the URI and returns an instance of URILocator if the URI is valid. If the URI is invalid null is returned.

Since:

3.0