com.github.fge.uritemplate.render
Class ValueRenderer

java.lang.Object
  com.github.fge.uritemplate.render.ValueRenderer

Direct Known Subclasses:

MultiValueRenderer, StringRenderer

public abstract class ValueRenderer
extends Object

Main rendering class

The algorithm used for rendering is centered around this class,and is adapted from the algorithm suggested in the RFC's appendix.

Eventually, rendering can be viewed as joining a list of rendered strings with the expression type separator; if the resulting list is empty, the end result is the empty string; otherwise, it is the expression's prefix string (if any) followed by the joined list of rendered strings.

This class renders one variable value according to the expression type and value type. The rendering method returns a list, which can be empty.

See Also:

ExpressionType

Field Summary

protected String	ifEmpty Substitution string for an empty value/list member/map value
protected boolean	named Whether variable values are named during expansion

Constructor Summary

protected

ValueRenderer(ExpressionType type) Constructor

Method Summary

protected String	pctEncode(String s) Render a string value, doing character percent-encoding where needed
abstract List<String>	render(VariableSpec varspec, VariableValue value) Render a value given a varspec and value

Methods inherited from class java.lang.Object

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

Field Detail

named

protected final boolean named

Whether variable values are named during expansion

See Also:

ExpressionType.isNamed()

ifEmpty

protected final String ifEmpty

Substitution string for an empty value/list member/map value

See Also:

ExpressionType.getIfEmpty()

Constructor Detail

ValueRenderer

protected ValueRenderer(ExpressionType type)

Constructor

Parameters:

type - the expression type

Method Detail

render

public abstract List<String> render(VariableSpec varspec,
                                    VariableValue value)
                             throws URITemplateException

Render a value given a varspec and value

Parameters:

varspec - the varspec

value - the matching variable value

Returns:

a list of rendered strings

Throws:

URITemplateException - illegal expansion

pctEncode

protected final String pctEncode(String s)

Render a string value, doing character percent-encoding where needed

The character set on which to perform percent encoding is dependent on the expression type.

Parameters:

s - the string to encode

Returns:

an encoded string

See Also:

ExpressionType.isRawExpand()