org.springframework.web.util
Class UriTemplate

java.lang.Object
  org.springframework.web.util.UriTemplate

public class UriTemplate
extends Object

Represents a URI template. An URI template is a URI-like String that contained variables marked of in braces ({, }), which can be expanded to produce a URI.

See expand(Map), expand(Object[]), and match(String) for example usages.

Since:

3.0

Author:

Arjen Poutsma, Juergen Hoeller

See Also:

URI Templates

Constructor Summary

UriTemplate(String uriTemplate)
Construct a new UriTemplate with the given URI String.

Method Summary

protected URI	encodeUri(String uri) Encodes the given String as URL.
URI	expand(Map<String,?> uriVariables) Given the Map of variables, expands this template into a URI.
URI	expand(Object... uriVariableValues) Given an array of variables, expand this template into a full URI.
List<String>	getVariableNames() Return the names of the variables in the template, in order.
Map<String,String>	match(String uri) Match the given URI to a map of variable values.
boolean	matches(String uri) Indicate whether the given URI matches this template.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UriTemplate

public UriTemplate(String uriTemplate)

Construct a new UriTemplate with the given URI String.

Parameters:

uriTemplate - the URI template string

Method Detail

getVariableNames

public List<String> getVariableNames()

Return the names of the variables in the template, in order.

Returns:

the template variable names

expand

public URI expand(Map<String,?> uriVariables)

Given the Map of variables, expands this template into a URI. The Map keys represent variable names, the Map values variable values. The order of variables is not significant.

Example:

 UriTemplate template = new UriTemplate("http://example.com/hotels/{hotel}/bookings/{booking}");
 Map<String, String> uriVariables = new HashMap<String, String>();
 uriVariables.put("booking", "42");
 uriVariables.put("hotel", "1");
 System.out.println(template.expand(uriVariables));
 

will print:

http://example.com/hotels/1/bookings/42

Parameters:

uriVariables - the map of URI variables

Returns:

the expanded URI

Throws:

IllegalArgumentException - if uriVariables is null; or if it does not contain values for all the variable names

expand

public URI expand(Object... uriVariableValues)

Given an array of variables, expand this template into a full URI. The array represent variable values. The order of variables is significant.

Example:

 will print: 
http://example.com/hotels/1/bookings/42


Parameters:
uriVariableValues - the array of URI variables
Returns:
the expanded URI
Throws:
IllegalArgumentException - if uriVariables is null; or if it does not contain
 sufficient variables

matches

public boolean matches(String uri)

Indicate whether the given URI matches this template.

Parameters:

uri - the URI to match to

Returns:

true if it matches; false otherwise

match

public Map<String,String> match(String uri)

Match the given URI to a map of variable values. Keys in the returned map are variable names, values are variable values, as occurred in the given URI.

Example:

 UriTemplate template = new
 UriTemplate("http://example.com/hotels/{hotel}/bookings/{booking}"); System.out.println(template.match("http://example.com/hotels/1/bookings/42"));
 

will print:

{hotel=1, booking=42}

Parameters:

uri - the URI to match to

Returns:

a map of variable values

toString

public String toString()

Overrides:

toString in class Object

encodeUri

protected URI encodeUri(String uri)

Encodes the given String as URL.

Defaults to UriUtils.encodeUri(String, String).

Parameters:

uri - the URI to encode

Returns:

the encoded URI