Description: This class is used by AntProject. It read all files from
resource directory using extension filtering and creates Document nodes
array. All necessary data are provided by AntProject.
getDocumentNodes(String rootDir) Read all files from resource directory and create Document nodes using
extension filtering.
Parameters: rootDir - root directory.
Read all files from resource directory and create Document nodes using
extension filtering.
Parameters: rootDir - root directory. array of all document nodes used for xml compiling.