CN112967142A - Method and device for forwarding market information stream - Google Patents
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- CN112967142A CN112967142A CN202110354849.9A CN202110354849A CN112967142A CN 112967142 A CN112967142 A CN 112967142A CN 202110354849 A CN202110354849 A CN 202110354849A CN 112967142 A CN112967142 A CN 112967142A
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Abstract
The invention discloses a forwarding method and a device of a market information stream, wherein the method comprises the following steps: step S1, receiving the subscription request sent by each child node, and marking the subscription type of each child node; step S2, receiving the stock market data, analyzing the received stock market data and obtaining the data type; and step S3, sending the received stock market data to the child nodes corresponding to the subscription type according to the analyzed data type.
Description
Technical Field
The invention relates to the technical field of computer software and stock market data transmission, in particular to a method and a device for forwarding market information flow, which are used for forwarding specific type data to a client subscribing the specific type data so as to reduce bandwidth pressure and improve bandwidth utilization rate.
Background
The current mainstream of securities market basically uses data stream market to transmit real-time market, which generally comprises the following steps: the upper level is the forwarding of the full stock market data, and the lower level is corresponding to the receiving of the full market data; the market transmission generally needs to cross machine rooms in different places, cross special lines and the like, and one special line may need to use a plurality of services simultaneously, so that the requirement on the limitation of bandwidth is high. In the forwarding process, the packet loss information is not judged and processed until the service logic of a third party judges that the packet is lost, the packet loss information is requested, the packet loss request is forwarded upwards, and the packet loss compensation data is sent downwards.
With the increasing data volume of market publishing systems and the requirements of dealer on low delay and high availability of forwarding systems, the pressure of the full-volume forwarding data on the transmission bandwidth is increasing, and the lower level receives the full-volume data and then analyzes, classifies and uses the data, and the lower level may use only one type of service data, thereby causing great bandwidth waste.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a method and a device for forwarding a market information stream, which realize accurate delivery of market data, improve the bandwidth utilization rate, reduce the transmission of redundant data, relieve the bandwidth pressure, relieve the business data processing pressure on a lower level and achieve the purposes of improving the resource utilization rate and reducing the data delay by only forwarding specific required data to a subscription client.
In order to achieve the above object, the present invention provides a method for forwarding a market information stream, including:
step S1, receiving the subscription request sent by each child node, and marking the subscription type of each child node;
step S2, receiving the stock market data, analyzing the received stock market data and obtaining the data type;
and step S3, sending the received stock market data to the child nodes corresponding to the subscription type according to the analyzed data type.
Preferably, the subscription type includes subscribing to the market quotation data of all stocks, subscribing to the snapshot quotation data of all stocks, subscribing to the full market quotation data, or subscribing to the market quotation data of a certain stock, or subscribing to the snapshot quotation data of a certain stock, or subscribing to the full quotation data of a certain stock.
Preferably, in Step S2, after receiving the stock market data, analyzing the Step market data according to the Fast protocol to obtain the Step data type; and analyzing the Binary data according to a Binary protocol to analyze the Binary data type.
Preferably, in step S3, for the analyzed stock market data, matching is performed according to the obtained data type and the subscription type of each child node, and the stock market data is sent to the child node of the corresponding subscription type.
Preferably, each child node initiates a data transfer connection through a subscription library object by instantiating the subscription library object.
Preferably, in step S1, the child nodes connect through the subscription library object and send subscription requests to the upper node, and after the upper node receives the connection of each child node, the upper node receives the subscription requests sent by each child node, and marks the subscription types of each child node according to the subscription requests.
Preferably, after step S3, the method further includes:
when the sub-node subscription library object receives subscription data sent by a superior node, if the sent data has packet loss or loss, a retransmission request is sent to the superior node through retransmission connection, otherwise, the sub-node is notified to process the received subscription data through a registered callback function.
Preferably, after receiving the retransmission request, the superior node forwards the request to the superior node of itself; the received retransmission data is still sent to the child node by the data transmission connection.
Preferably, after the sub-node subscription library object receives the delivered retransmission data, the packet loss information is completed, and the sub-node is notified by the callback function to process the received subscription data.
In order to achieve the above object, the present invention further provides a forwarding device for market information stream, including:
the subscription type marking unit is used for receiving the subscription request sent by each child node and marking the subscription type of each child node;
the data analysis thread is used for receiving the stock market data, analyzing the received stock market data and acquiring the data type;
and the data sending thread is used for sending the received stock market data to the child nodes corresponding to the subscription types according to the analyzed data types.
Compared with the prior art, the quotation information flow forwarding method and the device can efficiently analyze and classify the data when the market data of the certificates are forwarded, and only forward the data with specific requirements to the client side with the corresponding subscription type, so that the quotation data can be accurately delivered, the bandwidth utilization rate is improved, the transmission of redundant data is reduced, the bandwidth pressure is reduced, the business data processing pressure is reduced for the lower level, and the purposes of improving the resource utilization rate and reducing the data delay are achieved.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for forwarding a market information flow according to the present invention;
fig. 2 is a system architecture diagram of a forwarding device for market information flow according to the present invention;
fig. 3 is a node topology diagram of a system to which a method for forwarding a market information flow is applied in an embodiment of the present invention;
fig. 4 is a flowchart of a method for forwarding a market information flow according to an embodiment of the present invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
Fig. 1 is a flowchart illustrating steps of a method for forwarding a market information flow according to the present invention. As shown in fig. 1, a forwarding method of a market information stream according to the present invention includes:
step S1, receiving the subscription request sent by each child node, and marking the subscription type of each child node.
In the invention, for a main node server connected with a market gateway, the main node server applying the forwarding method of the market information flow of the invention can receive a connection request of each sub-node, and receives a subscription request of each sub-node after establishing connection with each sub-node, wherein the subscription request comprises the subscription type of each sub-node, and the subscription type can be divided into: subscribing the market quotation data of all stocks, subscribing the snapshot quotation data of all stocks, subscribing the full market quotation data, or subscribing the market quotation data of a certain stock, or subscribing the snapshot quotation data of a certain stock, or subscribing the full quotation data of a certain stock; after receiving the subscription request of the sub-nodes, the main node server marks the subscription type of each sub-node according to the subscription type in the request, and stores the subscription type into a subscription information list.
Step S2, receiving the stock market data, parsing the received stock market data and obtaining the data type (i.e. subscription type in step S1). Specifically, after the main node server receives stock market data from a stock exchange or a market gateway, analyzing the Shanghai Step market data according to a Fast protocol to analyze the Step data type; analyzing the Shenzhen Binary data according to a Binary protocol to obtain a Binary data type; the types of the parsed data are stroke by stroke, snapshot, stock code information and other types, for example, the types of the parsed data (i.e. subscription) are: step type UA 3201; step snapshot type UA3202| U3107|3113| 3115; binary stroke-by-stroke type 300192|300592|300792|300191|300591| 300791; binary snapshot type 300111|300611|309011| 309111; the stock code (000651).
And for the common node, acquiring the stock market data from the superior node thereof and analyzing correspondingly.
And step S3, sending the received stock market data to the child nodes corresponding to the subscription type according to the parsed step or binary data type. Specifically, for data types matching the subscription type, for example, if the client a subscribes one by one (for example, one by one containing all stocks), and the market data P is parsed and then one by one (for example, one by one type is in the subscription of a) of the stock code 601398, the market data P is forwarded to the client a; if the client A only subscribes 601398 stroke by stroke, and after a certain market data packet P is analyzed 600029 stroke by stroke, the type of the data packet P does not meet the subscription requirement, and the data P is not forwarded to the client A.
For the main node server, acquiring a corresponding data type of the analyzed stock market data, matching the data type with the subscription type of each sub-node, and sending the stock market data to the sub-nodes of the corresponding subscription type; and for the general node, continuously sending the received stock market data to the child nodes of the corresponding subscription type according to the analyzed step or binary data type.
It should be noted here that the stock market data sent to the child node is stock market data before parsing, for a leaf node, the stock market data required by parsing is obtained, and for a non-leaf node, the purpose of parsing is mainly to obtain a corresponding data type, so that the stock market data is sent to the child node of the corresponding type according to the parsing result (of course, the leaf node is not sent any more).
Because the data issued by the market gateway is the full-volume market data, the full-volume data is generally directly forwarded downwards in the prior art, which causes the waste of bandwidth to a great extent, therefore, in order to reduce the waste of bandwidth, the invention analyzes the full-volume data issued by the market gateway, and accurately forwards the corresponding type of data aiming at each sub-node aiming at the specific type of data subscribed by each sub-node client, thereby avoiding the bandwidth occupation of redundant data, reducing the bandwidth occupation and achieving the purpose of improving the data forwarding accuracy and speed.
It should be noted that, in the present invention, for other nodes except the service end of the master node, each node may be regarded as a superior node of a subordinate node, and is also a child node of the superior node, and the forwarding process of the market information flow is the same as that of the service end of the master node, which is not described herein again.
Fig. 2 is a system architecture diagram of a forwarding device for market information flow according to the present invention. As shown in fig. 2, the forwarding apparatus for a market information stream according to the present invention includes:
a subscription type marking unit 201, configured to receive a subscription request sent by each child node, and mark a subscription type of each child node.
In the present invention, a subscription type marking unit 201 receives a connection request of each child node, and after establishing a connection with each child node, receives a subscription request of each child node, where the subscription request at least includes a subscription type of each child node itself, the subscription type includes, but is not limited to, a batch-by-batch subscription, a snapshot subscription, a market-wide market quotation subscription, and the like, and a master node server marks the subscription type of each child node according to the subscription type in the subscription request.
And the data analysis thread 202 is used for receiving the stock market data, analyzing the received stock market data and acquiring the data type.
Specifically, for the master node server, the analysis thread 202 acquires the stock market data from the stock exchange or the market gateway, and when the stock market data is acquired, the stock market data is analyzed to obtain the data type according to the analysis result, and for the other nodes, the analysis thread 202 acquires the stock market data from the upper node and analyzes the stock market data to obtain the data type.
And the data sending thread 203 is used for sending the received stock market data to the child nodes corresponding to the subscription types according to the analyzed data types.
That is, for the analyzed stock market data, the data sending thread 203 obtains the corresponding data type, and matches the data type with the subscription type of each child node, and sends the stock market data to the child node of the corresponding subscription type.
Examples
Fig. 3 is a node topology diagram of a system to which a method for forwarding a market information flow is applied in an embodiment of the present invention. The system comprises a main node server and a plurality of sub-nodes, wherein the main node server is used for receiving the stock market data of a stock exchange or a market gateway and forwarding the stock market data to each sub-node (a third-party market client in the graph is a leaf node), and it needs to be explained that each node in the graph is a superior node of a subordinate node and is also a sub-node of the superior node.
Only one node (determined by security dealer line limitation) can be connected under the market gateway, namely the main node server; other nodes are connected with a main node server or a superior node to receive market data, and meanwhile, the other nodes receive connection of a subordinate node and transfer the market data to the subordinate node;
fig. 4 is a flowchart of a method for forwarding a market information flow according to an embodiment of the present invention. In an embodiment of the present invention, a method for forwarding a market information stream includes the following steps:
step S1, the user program of the child node instantiates a subscription library object, and starts two connections using the connection API of the subscription library object: 1. the data transmission connection is responsible for sending a subscription request to a superior level, receiving data transmitted from the superior level, registering a callback function according to a callback interface of the subscription library, and monitoring a notification that the subscription library receives the data; 2. retransmission connection, which is responsible for sending a 'packet loss retransmission message' request to the superior;
step S2, the sub-nodes are connected through a subscription library and send subscription requests to a superior node, the superior node receives the subscription requests sent by the sub-nodes after receiving the connection of the sub-nodes, and marks the subscription types of the sub-nodes according to the subscription requests;
and step S3, after the current node receives the market data (the upper level is a market gateway or the upper level node), the current node transfers the data to an analysis thread to analyze the data type.
Step S4, the analysis thread of the current node analyzes and classifies the data received in the step S3;
in step S5, the sending thread of the current node sends (source market) data to the child node corresponding to the subscription type according to the data type analyzed in step S4.
Step S6, after the sub-node subscription library object receives the subscription data sent by the superior node, if the data sent is judged to have packet loss according to the packet sequence number, the sub-node subscription library object sends a retransmission request to the superior through retransmission connection (first-level uploading, until the market gateway receives the retransmission request and sends the retransmission packet, then the first-level sending is sent to the packet loss node and supplements the packet data, and the processing process is realized according to the technical document description of the securities company); otherwise, judging that the current receiving queue has no packet loss, and notifying the child node to process the received subscription data through the callback function registered in the S1.
Step S7, after receiving the retransmission request of the lower level, the superior node forwards the request to the superior node of itself; the received retransmission data is still sent to the child node by the transmission connection
In step S8, after the sub-node subscription library object receives the retransmission data sent by the upper level, it completes the packet loss information and notifies the sub-node to process the received subscription data through the callback function.
In summary, the quotation information flow forwarding method and device provided by the invention efficiently analyze and classify data when forwarding the certificate market data, and only forward specific demand data to the client of the corresponding subscription type, so that the quotation data is accurately delivered, the bandwidth utilization rate is improved, the transmission of redundant data is reduced, the bandwidth pressure is reduced, the business data processing pressure is reduced for the lower level, and the purposes of improving the resource utilization rate and reducing the data delay are achieved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (10)
1. A forwarding method of market information flow comprises the following steps:
step S1, receiving the subscription request sent by each child node, and marking the subscription type of each child node;
step S2, receiving the stock market data, analyzing the received stock market data and obtaining the data type;
and step S3, sending the received stock market data to the child nodes corresponding to the subscription type according to the analyzed data type.
2. The forwarding method of a market information stream according to claim 1, wherein: the subscription type comprises the steps of subscribing the market quotation data of all stocks, subscribing the snapshot quotation data of all stocks, subscribing the full market quotation data, or subscribing the market quotation data of a certain stock, or subscribing the snapshot quotation data of a certain stock, or subscribing the full quotation data of a certain stock.
3. The forwarding method of a market information stream according to claim 1, wherein: in Step S2, after receiving the stock market data, analyzing the Step market data according to the Fast protocol to obtain a Step data type; and analyzing the Binary data according to a Binary protocol to analyze the Binary data type.
4. The forwarding method of a market information stream according to claim 1, wherein: in step S3, for the analyzed stock market data, matching is performed according to the obtained data type and the subscription type of each child node, and the stock market data is sent to the child node of the corresponding subscription type.
5. The method according to claim 1, wherein each child node initiates a data transmission connection through a subscription library object by instantiating the subscription library object.
6. The forwarding method of a market information stream according to claim 5, wherein: in step S1, the child nodes connect through the subscription library object and send subscription requests to the upper node, and the upper node receives the subscription requests sent by the child nodes after receiving the connection of the child nodes, and marks the subscription types of the child nodes according to the subscription requests.
7. The forwarding method of a market information stream according to claim 6, wherein after step S3, the method further comprises:
when the sub-node subscription library object receives subscription data sent by a superior node, if the sent data has packet loss or loss, a retransmission request is sent to the superior node through retransmission connection, otherwise, the sub-node is notified to process the received subscription data through a registered callback function.
8. The forwarding method of a market information stream according to claim 7, wherein: after receiving the retransmission request, the superior node forwards the request to the superior node of the superior node; the received retransmission data is still sent to the child node by the data transmission connection.
9. The forwarding method of a market information stream according to claim 8, wherein: and after the sub-node subscription library object receives the transmitted retransmission data, completing packet loss information and informing the sub-node to process the received subscription data through a callback function.
10. A forwarding device for a market information stream, comprising:
the subscription type marking unit is used for receiving the subscription request sent by each child node and marking the subscription type of each child node;
the data analysis thread is used for receiving the stock market data, analyzing the received stock market data and acquiring the data type;
and the data sending thread is used for sending the received stock market data to the child nodes corresponding to the subscription types according to the analyzed data types.
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| CN114006945A (en) * | 2021-10-15 | 2022-02-01 | 广州鲁邦通智能科技有限公司 | Intelligent grouping distribution method of Internet of things data and Internet of things platform |
| CN114666408A (en) * | 2022-05-23 | 2022-06-24 | 深圳华锐分布式技术股份有限公司 | Market condition factor data transparent transmission method, device, equipment and medium based on Internet |
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