net.ggtools.grand.ant
Class ReflectTaskVisitorBase

java.lang.Object
  net.ggtools.grand.ant.ReflectTaskVisitorBase

All Implemented Interfaces:

TaskVisitor

Direct Known Subclasses:

LinkFinderVisitor

abstract class ReflectTaskVisitorBase
extends java.lang.Object
implements TaskVisitor

A base class using reflectivity in order to invoke a method depending on the visited wrapper.

Author:

Christophe Labouisse

Constructor Summary

ReflectTaskVisitorBase()

Method Summary

abstract void	defaultVisit(org.apache.tools.ant.RuntimeConfigurable wrapper)
java.lang.String	getAliasForTask(java.lang.String taskName) A default implementation returning the task name.
void	visit(org.apache.tools.ant.RuntimeConfigurable wrapper) Invoke the right method depending on the wrapper's element tag.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectTaskVisitorBase

ReflectTaskVisitorBase()

Method Detail

visit

public void visit(org.apache.tools.ant.RuntimeConfigurable wrapper)
           throws GrandException

Invoke the right method depending on the wrapper's element tag. The algorithm is:

1. get the wrapper's element tag name,
2. if the cache already contain a method, use it,
3. call getAliasForTask(String)to find out if there is an alias for this task,
4. try to get the method called reflectVisit_task_name,
5. call the found method.

If the following algorithm fails then we'll use the defaultVisit(RuntimeConfigurable)fallback method.

Specified by:

visit in interface TaskVisitor

Parameters:

wrapper - Wrapper to visit.

Throws:

GrandException - if something goes wrong.

See Also:

TaskVisitor.visit(org.apache.tools.ant.RuntimeConfigurable)

defaultVisit

public abstract void defaultVisit(org.apache.tools.ant.RuntimeConfigurable wrapper)
                           throws GrandException

Throws:

GrandException

getAliasForTask

public java.lang.String getAliasForTask(java.lang.String taskName)

A default implementation returning the task name.

Parameters:

taskName -

Returns:

the name to use when look for the method to invoke. Should not be null.