ó O'—^c@@sdZddlmZddlZddlmZddlmZddlm Z ddl m Z m Z dd l mZmZmZdd lmZdd lmZmZdd lmZmZdd lmZmZddddgZdefd„ƒYZdefd„ƒYZdS(sC kombu.messaging =============== Sending and receiving messages. i(tabsolute_importN(tcounti(t maybe_declare(tcompress(t maybe_channelt is_connection(tExchangetQueuetDELIVERY_MODES(tContentDisallowed(ttext_ttvalues(tdumpstprepare_accept_content(tChannelPromiset maybe_listRRtProducertConsumercB@s4eZdZdZdZdZdZeZ dZ dZ ddddddd„Z d„Z d„Zd„Zd„Zed„Zddeedddddddedgdd „Zd „Zd „Zd „ZeeeƒZd „Zd„Zd„Zd„ZeZdddddd„Zed„ƒZRS(s Message Producer. :param channel: Connection or channel. :keyword exchange: Optional default exchange. :keyword routing_key: Optional default routing key. :keyword serializer: Default serializer. Default is `"json"`. :keyword compression: Default compression method. Default is no compression. :keyword auto_declare: Automatically declare the default exchange at instantiation. Default is :const:`True`. :keyword on_return: Callback to call for undeliverable messages, when the `mandatory` or `immediate` arguments to :meth:`publish` is used. This callback needs the following signature: `(exception, exchange, routing_key, message)`. Note that the producer needs to drain events to use this feature. tcC@s¼||_||_|p|j|_|p0|j|_|pB|j|_|pT|j|_d|_|jdkr„tdƒ|_n|dk rœ||_ n|jr¸|j |jƒndS(NR( t_channeltexchanget routing_keyt serializert compressiont on_returntNonet_channel_promiseRt auto_declaretrevive(tselftchannelRRRRRR((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyt__init__Es      cC@s dj|ƒS(Ns(tformat(R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyt__repr__WscC@s|j|jƒfS(N(t __class__t__reduce_args__(R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyt __reduce__ZscC@s%d|j|j|j|j|jfS(N(RRRRRR(R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyR#]scC@s |jjr|jjƒndS(s€Declare the exchange. This happens automatically at instantiation if :attr:`auto_declare` is enabled. N(Rtnametdeclare(R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyR&as cK@s |rt||j||SdS(sTDeclare the exchange if it hasn't already been declared during this session.N(RR(Rtentitytretryt retry_policy((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRksic K@s|| dkrin| } |dkr*in|}|dkrE|jn|}| dkr`|jn| } | pr|j} t| tƒrŸ|p| j}| j} n|p®|jj}t|tj ƒsÐt |}n||d<|dk rt t |dƒƒ|dÑRRAN( Rt__connection__RR,RRRRBRCRR&(RR((R3s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRÌs      cC@s|S(N((R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyt __enter__àscG@s|jƒdS(N(trelease(Rtexc_info((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyt__exit__ãscC@sdS(N((R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRJæscC@s¡|s3|p|j}t|d|ƒ\}}}n?t|tƒrc|sQd}n|j|ƒ}n|srd}n|r”t||ƒ\}|dës(tsumRX(R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRwãscC@s|jj|ƒdS(s“Enable/disable flow from peer. This is a simple flow-control mechanism that a peer can use to avoid overflowing its queues or otherwise finding itself receiving more messages than it can process. The peer that receives a request to stop sending content will finish sending the current content (if any), and then wait until flow is reactivated. N(Rtflow(Rtactive((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRzís icC@s|jj|||ƒS(sÃSpecify quality of service. The client can request that messages should be sent in advance so that when the client finishes processing a message, the following message is already held locally, rather than needing to be sent down the channel. Prefetching gives a performance improvement. The prefetch window is Ignored if the :attr:`no_ack` option is set. :param prefetch_size: Specify the prefetch window in octets. The server will send a message in advance if it is equal to or smaller in size than the available prefetch size (and also falls within other prefetch limits). May be set to zero, meaning "no specific limit", although other prefetch limits may still apply. :param prefetch_count: Specify the prefetch window in terms of whole messages. :param apply_global: Apply new settings globally on all channels. (Rt basic_qos(Rt prefetch_sizetprefetch_countt apply_global((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pytqosûs cC@s|jjd|ƒS(s™Redeliver unacknowledged messages. Asks the broker to redeliver all unacknowledged messages on the specified channel. :keyword requeue: By default the messages will be redelivered to the original recipient. With `requeue` set to true, the server will attempt to requeue the message, potentially then delivering it to an alternative subscriber. trequeue(Rt basic_recover(RR((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pytrecovers cC@sB|j}|stdƒ‚ng|D]}|||ƒ^q%dS(s0Method called when a message is received. This dispatches to the registered :attr:`callbacks`. :param body: The decoded message body. :param message: The `Message` instance. :raises NotImplementedError: If no consumer callbacks have been registered. s$Consumer does not have any callbacksN(RZtNotImplementedError(RR5R@RZRc((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pytreceive%s cC@sY|jj|jƒ}|dkrU|j||ƒ}|j||jd|d|ƒn|S(NRYRl(R]tgetR%Rt_add_tagRet_receive_callback(RRat consumer_tagRYRlRq((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRm6s  cC@s8|p!dj|jt|jƒƒ}||j|j<|S(Ns{0}{1}(R R\tnextt_tagsR]R%(RRaR‰Rq((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyR‡?s cC@sð|j}|j|jd}}}ytt|ddƒ}|rM||ƒ}n|dk re||_n|jr~|j|jƒS|rŠdn |jƒ}Wn2t k rË}|js¸‚n|j||ƒn!X|rÜ||ƒS|j ||ƒSdS(Ntmessage_to_python( R_R[RRtgetattrterrorst_reraise_errorR^tdecodeRgR…(RR@R_ton_mRtdecodedtm2ptexc((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyRˆEs      cC@s dj|ƒS(Ns(R (R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyR!XscC@s)y|jjjSWntk r$nXdS(N(RR3RORP(R((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyR3[s N()RQRRRSR RRRXRYRTRRZR[R^R_RR‹RRR&RdRIRLRhRkReRfRWRuRvRwRzRUR€RƒR…RmR‡RˆR!RVR3(((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyR sJ                ( RSt __future__RR-t itertoolsRtcommonRRRR3RRR'RRRt exceptionsR tfiveR R t serializationR R tutilsRRt__all__tobjectRR(((s1/tmp/pip-unpacked-wheel-UAnTfW/kombu/messaging.pyts ò