org.apache.juneau.svl.vars

Class ManifestFileVar

java.lang.Object

org.apache.juneau.svl.Var

org.apache.juneau.svl.SimpleVar

org.apache.juneau.svl.DefaultingVar

org.apache.juneau.svl.vars.ManifestFileVar

public class ManifestFileVar
extends DefaultingVar

Manifest file entries variable resolver.

The format for this var is "$MF{key[,default]}".

This variable resolver requires that a ManifestFile object be made available by calling the init(ManifestFile) method.

Example:

// Create a ManifestFile object that contains the manifest of the jar file containing this class. ManifestFile mf = new ManifestFile(this.getClass()); ManifestFileVar.init(mf); // Create a variable resolver that resolves manifest file entries (e.g. "$MF{Main-Class}") VarResolver r = new VarResolver().addVars(ManifestFile.class); // Use it! System.out.println(r.resolve("The main class is $MF{Main-Class}"));

Since this is a SimpleVar, 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:

ManifestFile, org.apache.juneau.svl

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
ManifestFileVar() Constructor.

Method Summary

Modifier and Type	Method and Description
static void	init(ManifestFile manifestFile) Initialize the manifest file for this variable.
String	resolve(VarResolverSession session, String key) The interface that needs to be implemented for subclasses of SimpleVar.

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

doResolve

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

resolveTo

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

allowNested, allowRecurse, canResolve, getName

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

The name of this variable.

See Also:

Constant Field Values

Constructor Detail

ManifestFileVar

public ManifestFileVar()

Constructor.

Method Detail

init

public static void init(ManifestFile manifestFile)

Initialize the manifest file for this variable.

Parameters:

manifestFile - The parsed manifest file.

resolve

public String resolve(VarResolverSession session,
                      String key)

Description copied from class: Var

The interface that needs to be implemented for subclasses of SimpleVar.

Specified by:

resolve in class Var

Parameters:

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

key - The inside argument of the variable.

Returns:

The resolved value.