Package org.apache.tools.ant

Class ProjectHelperRepository

java.lang.Object

org.apache.tools.ant.ProjectHelperRepository

public class ProjectHelperRepository
extends Object

Repository of ProjectHelper found in the classpath or via some System properties.

See the ProjectHelper documentation in the manual.

Since:

Ant 1.8.0

Method Summary

Modifier and Type	Method	Description
Iterator<ProjectHelper>	getHelpers()	Get an iterator on the list of project helpers configured.
static ProjectHelperRepository	getInstance()
ProjectHelper	getProjectHelperForAntlib(Resource antlib)	Get the helper that will be able to parse the specified antlib.
ProjectHelper	getProjectHelperForBuildFile(Resource buildFile)	Get the helper that will be able to parse the specified build file.
void	registerProjectHelper(Class<? extends ProjectHelper> helperClass)	Register the specified project helper into the repository.
void	registerProjectHelper(String helperClassName)	Register the specified project helper into the repository.

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static ProjectHelperRepository getInstance()

registerProjectHelper

public void registerProjectHelper(String helperClassName)
                           throws BuildException

Register the specified project helper into the repository.

The helper will be added after all the already registered helpers, but before the default one (ProjectHelper2)

Parameters:

helperClassName - the fully qualified name of the helper

Throws:

BuildException - if the class cannot be loaded or if there is no constructor with no argument

Since:

Ant 1.8.2

registerProjectHelper

public void registerProjectHelper(Class<? extends ProjectHelper> helperClass)
                           throws BuildException

Register the specified project helper into the repository.

The helper will be added after all the already registered helpers, but before the default one (ProjectHelper2)

Parameters:

helperClass - the class of the helper

Throws:

BuildException - if there is no constructor with no argument

Since:

Ant 1.8.2

getProjectHelperForBuildFile

public ProjectHelper getProjectHelperForBuildFile(Resource buildFile)
                                           throws BuildException

Get the helper that will be able to parse the specified build file. The helper will be chosen among the ones found in the classpath

Parameters:

buildFile - Resource

Returns:

the first ProjectHelper that fit the requirement (never null).

Throws:

BuildException

getProjectHelperForAntlib

public ProjectHelper getProjectHelperForAntlib(Resource antlib)
                                        throws BuildException

Get the helper that will be able to parse the specified antlib. The helper will be chosen among the ones found in the classpath

Parameters:

antlib - Resource

Returns:

the first ProjectHelper that fit the requirement (never null).

Throws:

BuildException

getHelpers

public Iterator<ProjectHelper> getHelpers()

Get an iterator on the list of project helpers configured. The iterator will always return at least one element as there will always be the default project helper configured.

Returns:

an iterator of ProjectHelper