Symfony ExcelBundle in Command - symfony

Question

i'll try to do something like:
<?php
namespace ExportBundle\Command;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\HttpFoundation\ResponseHeaderBag;
// I am extending ContainerAwareCommand so that you can have access to $container
// which you can see how it's used in method execute
class HelloCommand extends ContainerAwareCommand {
// This method is used to register your command name, also the arguments it requires (if needed)
protected function configure() {
// We register an optional argument here. So more below:
$this->setName('hello:world')
->addArgument('name', InputArgument::OPTIONAL);
}
// This method is called once your command is being called fron console.
// $input - you can access your arguments passed from terminal (if any are given/required)
// $output - use that to show some response in terminal
protected function execute(InputInterface $input, OutputInterface $output) {
// ask the service for a excel object
$phpExcelObject = $this->get('phpexcel')->createPHPExcelObject();
$phpExcelObject->getProperties()->setCreator("liuggio")
->setLastModifiedBy("Giulio De Donato")
->setTitle("Office 2005 XLSX Test Document")
->setSubject("Office 2005 XLSX Test Document")
->setDescription("Test document for Office 2005 XLSX, generated using PHP classes.")
->setKeywords("office 2005 openxml php")
->setCategory("Test result file");
$phpExcelObject->setActiveSheetIndex(0)
->setCellValue('A1', 'Hello')
->setCellValue('C1', 'Hello')
->setCellValue('B2', 'world!');
$phpExcelObject->getActiveSheet()->setTitle('Simple');
// Set active sheet index to the first sheet, so Excel opens this as the first sheet
$phpExcelObject->setActiveSheetIndex(0);
// create the writer
$writer = $this->get('phpexcel')->createWriter($phpExcelObject, 'Excel2007');
// The save method is documented in the official PHPExcel library
$writer->save('filename.xlsx');
// Return a Symfony response (a view or something or this will thrown error !!!)
return "A symfony response";
$greetLine = $input->getArgument('name')
? sprintf('Hey there %s', $input->getArgument('name'))
: 'Hello world called without arguments passed!'
;
$output->writeln($greetLine);
}
}
but throw me this error:
[Symfony\Component\Debug\Exception\UndefinedMethodException]
Attempted to call an undefined method named "get" of class "ExportBundle\Command\HelloCommand".
Did you mean to call e.g. "getAliases", "getApplication", "getDefinition", "getDescription", "getHelp", "getHelper"
, "getHelperSet", "getName", "getNativeDefinition", "getProcessedHelp", "getSynopsis" or "getUsages"?
in the line:
$phpExcelObject = $this->get('phpexcel')->createPHPExcelObject();
work fine in a Controller but in command not.
how I can make it work in command?