/**
* Returns a fully configured FileNameMapper implementation.
*
* @return a FileNameMapper object to be configured
* @throws BuildException on error
*/
public FileNameMapper getImplementation() throws BuildException {
if (isReference()) {
return getRef().getImplementation();
}
if (type == null && classname == null && container == null) {
throw new BuildException(
"nested mapper or " + "one of the attributes type or classname is required");
}
if (container != null) {
return container;
}
if (type != null && classname != null) {
throw new BuildException("must not specify both type and classname attribute");
}
try {
FileNameMapper m = (FileNameMapper) (getImplementationClass().newInstance());
final Project p = getProject();
if (p != null) {
p.setProjectReference(m);
}
m.setFrom(from);
m.setTo(to);
return m;
} catch (BuildException be) {
throw be;
} catch (Throwable t) {
throw new BuildException(t);
}
}
