Re: [PATCH v2 20/25] python/aqmp: take QMPBadPortError and parse_address from qemu.qmp

[Beraldo Leal <bleal@redhat.com>]

On Wed, Dec 15, 2021 at 02:39:34PM -0500, John Snow wrote:
> Shift these definitions over from the qmp package to the async qmp
> package.
> 
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---
>  python/qemu/aqmp/aqmp_tui.py |  2 +-
>  python/qemu/aqmp/legacy.py   | 30 ++++++++++++++++++++++++++----
>  python/qemu/qmp/__init__.py  | 26 --------------------------
>  3 files changed, 27 insertions(+), 31 deletions(-)
> 
> diff --git a/python/qemu/aqmp/aqmp_tui.py b/python/qemu/aqmp/aqmp_tui.py
> index a2929f771c..184a3e4690 100644
> --- a/python/qemu/aqmp/aqmp_tui.py
> +++ b/python/qemu/aqmp/aqmp_tui.py
> @@ -35,8 +35,8 @@
>  import urwid
>  import urwid_readline
>  
> -from ..qmp import QEMUMonitorProtocol, QMPBadPortError
>  from .error import ProtocolError
> +from .legacy import QEMUMonitorProtocol, QMPBadPortError
>  from .message import DeserializationError, Message, UnexpectedTypeError
>  from .protocol import ConnectError, Runstate
>  from .qmp_client import ExecInterruptedError, QMPClient
> diff --git a/python/qemu/aqmp/legacy.py b/python/qemu/aqmp/legacy.py
> index 0890f95b16..76b09671cc 100644
> --- a/python/qemu/aqmp/legacy.py
> +++ b/python/qemu/aqmp/legacy.py
> @@ -22,9 +22,6 @@
>  from .qmp_client import QMPClient
>  
>  
> -# (Temporarily) Re-export QMPBadPortError
> -QMPBadPortError = qemu.qmp.QMPBadPortError
> -
>  #: QMPMessage is an entire QMP message of any kind.
>  QMPMessage = Dict[str, Any]
>  
> @@ -45,6 +42,12 @@
>  # pylint: disable=missing-docstring
>  
>  
> +class QMPBadPortError(QMPError):
> +    """
> +    Unable to parse socket address: Port was non-numerical.
> +    """
> +
> +
>  class QEMUMonitorProtocol(qemu.qmp.QEMUMonitorProtocol):
>      def __init__(self, address: SocketAddrT,
>                   server: bool = False,
> @@ -72,7 +75,26 @@ def _get_greeting(self) -> Optional[QMPMessage]:
>          return None
>  
>      # __enter__ and __exit__ need no changes
> -    # parse_address needs no changes
> +
> +    @classmethod
> +    def parse_address(cls, address: str) -> SocketAddrT:
> +        """
> +        Parse a string into a QMP address.
> +
> +        Figure out if the argument is in the port:host form.
> +        If it's not, it's probably a file path.
> +        """
> +        components = address.split(':')
> +        if len(components) == 2:
> +            try:
> +                port = int(components[1])
> +            except ValueError:
> +                msg = f"Bad port: '{components[1]}' in '{address}'."
> +                raise QMPBadPortError(msg) from None
> +            return (components[0], port)
> +
> +        # Treat as filepath.
> +        return address
>  
>      def connect(self, negotiate: bool = True) -> Optional[QMPMessage]:
>          self._aqmp.await_greeting = negotiate
> diff --git a/python/qemu/qmp/__init__.py b/python/qemu/qmp/__init__.py
> index 358c0971d0..4e08641154 100644
> --- a/python/qemu/qmp/__init__.py
> +++ b/python/qemu/qmp/__init__.py
> @@ -102,12 +102,6 @@ def __init__(self, reply: QMPMessage):
>          self.reply = reply
>  
>  
> -class QMPBadPortError(QMPError):
> -    """
> -    Unable to parse socket address: Port was non-numerical.
> -    """
> -
> -
>  class QEMUMonitorProtocol:
>      """
>      Provide an API to connect to QEMU via QEMU Monitor Protocol (QMP) and then
> @@ -237,26 +231,6 @@ def __exit__(self,
>          # Implement context manager exit function.
>          self.close()
>  
> -    @classmethod
> -    def parse_address(cls, address: str) -> SocketAddrT:
> -        """
> -        Parse a string into a QMP address.
> -
> -        Figure out if the argument is in the port:host form.
> -        If it's not, it's probably a file path.
> -        """
> -        components = address.split(':')
> -        if len(components) == 2:
> -            try:
> -                port = int(components[1])
> -            except ValueError:
> -                msg = f"Bad port: '{components[1]}' in '{address}'."
> -                raise QMPBadPortError(msg) from None
> -            return (components[0], port)
> -
> -        # Treat as filepath.
> -        return address
> -
>      def connect(self, negotiate: bool = True) -> Optional[QMPMessage]:
>          """
>          Connect to the QMP Monitor and perform capabilities negotiation.

Reviewed-by: Beraldo Leal <bleal@redhat.com>

--
Beraldo