private function buildReceiver( Receiver $receiver , AbstractPayPalMessageFactory $factory ) {
$receiverAmount = $receiver->getAmount();
$receiverEmail = $receiver->getEmail();
$receiverInvoiceId = $receiver->getInvoiceId();
$receiverPaymentType = $receiver->getPaymentType();
$receiverPaymentSubType = $receiver->getPaymentSubType();
$receiverPhone = $receiver->getPhone();
$receiverPrimary = $receiver->isPrimary();
if ( $receiverEmail == null && $receiverPhone == null ) {
throw new RuntimeException( 'You are *required* to specify the Receiver\'s email or the phone number.' );
} else {
$receiverElement = $factory->createMessageElement();
$receiverElement->addChild( $factory->createMessageField( 'amount' , $factory->createMessagePrimitive( $receiverAmount ) ) );
if ( $receiverEmail != null ) {
$receiverElement->addChild( $factory->createMessageField( 'email' , $factory->createMessagePrimitive( $receiverEmail ) ) );
}
if ( $receiverInvoiceId != null ) {
$receiverElement->addChild( $factory->createMessageField( 'invoiceId' , $factory->createMessagePrimitive( $receiverInvoiceId ) ) );
}
if ( $receiverPaymentType != null ) {
$receiverElement->addChild( $factory->createMessageField( 'paymentType' , $factory->createMessagePrimitive( $receiverPaymentType ) ) );
}
if ( $receiverPaymentSubType != null ) {
$receiverElement->addChild( $factory->createMessageField( 'paymentSubType' , $factory->createMessagePrimitive( $receiverPaymentSubType ) ) );
}
if ( $receiverPhone != null ) {
$receiverElement->addChild( $factory->createMessageField( 'phone' , $this->buildPhoneNumber( $receiverPhone , $factory ) ) );
}
if ( $receiverPrimary != null ) {
$receiverElement->addChild( $factory->createMessageField( 'primary' , $factory->createMessagePrimitive( $receiverPrimary ) ) );
}
return $receiverElement;
}
}