Package org.apache.juneau.svl.vars

Class SwitchVar

java.lang.Object

org.apache.juneau.svl.Var

org.apache.juneau.svl.SimpleVar

org.apache.juneau.svl.MultipartVar

org.apache.juneau.svl.vars.SwitchVar

public class SwitchVar
extends MultipartVar

A basic switch/case logic variable resolver.

The format for this var is one of the following:

• "$SW{stringArg, pattern:thenValue[, pattern:thenValue...]}"
• ...

The pattern can be any string optionally containing '*' or '?' representing any or one character respectively.

Example:

// Create a variable resolver that resolves system properties and $SW vars. VarResolver varResolver = VarResolver.create().vars(SwitchVar.class, SystemPropertiesVar.class).build(); // Use it! System.out.println(varResolver.resolve("We are running on $SW{$P{os.name},*win*:Windows,*:Something else}!"));

Since this is a MultipartVar, any variables contained in the result will be recursively resolved.
Likewise, if the arguments contain any variables, those will be resolved before they are passed to this var.

See Also:

• Simple Variable Language

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME	The name of this variable.

Constructor Summary

Constructors

Constructor	Description
SwitchVar()	Constructor.

Method Summary

Modifier and Type	Method	Description
String	resolve(VarResolverSession session, String[] args)	The interface that needs to be implemented for this interface.

Methods inherited from class org.apache.juneau.svl.MultipartVar

resolve

Methods inherited from class org.apache.juneau.svl.SimpleVar

resolveTo

Methods inherited from class org.apache.juneau.svl.Var

allowNested, allowRecurse, canResolve, doResolve, getName

Methods inherited from class java.lang.Object

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

Field Details

NAME

public static final String NAME

The name of this variable.

See Also:

• Constant Field Values

Constructor Details

SwitchVar

public SwitchVar()

Constructor.

Method Details

resolve

public String resolve(VarResolverSession session,
 String[] args)

Description copied from class: MultipartVar

The interface that needs to be implemented for this interface.

Specified by:

resolve in class MultipartVar

Parameters:

session - The session object used for a single instance of a string resolution.

args - The arguments inside the variable.

Returns:

The resolved variable.