CN105024923A - XMPP extensible message-based method and device for realizing message classification - Google Patents
XMPP extensible message-based method and device for realizing message classification Download PDFInfo
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Abstract
The invention provides an XMPP extensible message-based method and an XMPP extensible message-based device for realizing message classification. The method comprises the steps as follows: adding a coding/decoding protocol layer in an XMPP protocol stack, encapsulating a plurality of extensible messages in the coding/decoding protocol layer, uniformly transmitting the plurality of extensible messages to a message-decoding dispatcher to analyze via the coding/decoding protocol layer, and distributing the plurality of extensible messages according to the analyzing result. Therefore, a uniform object message converting mechanism is achieved by adding the appointment to a message coding/decoding expressing layer at the upper layer of an extended instruction message so as not to provide an analyzer for each extensible message any more to improve development efficiency. In addition, by introducing lightweight class JSON hybrid coding, the objects of meeting the expandability and reducing the transmission flow of the message consumed on a mobile application could be achieved.
Description
Technical field
The present invention relates to instant messaging field, the method that espespecially a kind of message category based on XMPP extended message realizes and device.
Background technology
Prior art, message adopts XML format character string to be described, and wants to utilize XML to utilize data coded in XML file in other words, must first data be parsed from plain text.Therefore requirement must have a text reader that can identify information in XML document, i.e. XML parser.XML parser is specifically operated as inputting and performing some to it by a undressed brief note string sequence.Resolver reads in XML document, sets up the mapping one to one between XML grammer and class.Classify to message according to various message xml entity tag name (tag) and name space (xmlns) during parsing, the message handling device transferring to various types of messages corresponding after being parsed processes.
There is other message instruction of three major types in XMPP, as the outermost layer node of message XML, nexine is exactly wrapped extended message instruction one by one, each message instruction has the XML tag name (tag) of its correspondence and name space (xmlns), and each message instruction internal package the XML node of the daughter element of this message instruction.When message is resolved time, which News Category (referring to iq, presence or message) belonging to the instruction of outermost layer tag recognition outbound message, enter classification again and resolve concrete message instruction further, the resolver that the prior art one XML label (tag) corresponding according to the message instruction of self-defined expansion finds registration in advance corresponding with it with name space (xmlns), resolver is required the parsing realized without exception its inside daughter element.And often create a kind of message instruction, corresponding resolver must be provided.Arrange by XMPP, prior art one is based on XML identifiable language agreement communication protocol presentation layer, because it is comparatively strict to the call format of message, grammer is comparatively wordy, although possess good extensibility, but in the face of huge now mobile Internet data communication, its transmission, resolve and to performance in mobile traffic consumes not as people's will.
In addition, prior art one is defined as each extended message class declaration one and meets the tag name (tag) of XML format and name space (xmlns), unique identification extended message classification is carried out with this, and the resolver corresponding to each extended message Category Accreditations, each resolver needs to realize decoding interface according to protocol requirement, needs corresponding News Category processor (as shown in Figure 1) in service end.So, development amount linearly will increase with extended message categorical measure, be unfavorable for increasing work efficiency.
Summary of the invention
The object of the invention is to solve the inefficiency existed in above-mentioned prior art, and delivery flow rate is high-technology problem comparatively, a kind of method providing message category based on XMPP extended message newly to realize and device.
For reaching above-mentioned purpose, the method that the message category based on XMPP extended message provided by the present invention realizes, specifically comprises: in XMPP stack, add codec protocd layer, a plurality of extended message is packaged in described codec protocd layer; A source codec distributor parsing is sent to by unified for described a plurality of extended message by described codec protocd layer; According to analysis result, distribution processor is carried out to described a plurality of extended message.
In the method that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described codec protocd layer is used for described a plurality of extended message to be defined as same source codec distributor and same codec format.
In the method that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described codec format is presentation layer data format.
In the method that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described extended message tag name and name space are class name and the name space of the corresponding programming language class of described extended message.
In the method that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: resolve described a plurality of extended message by described source codec distributor, obtain the node location of described a plurality of extended message; According to described node location, described extended message is distributed to correspondence position and processes.
The device that the present invention also provides a kind of message category based on XMPP extended message to realize, described device specifically comprises: coding module, in XMPP stack, add codec protocd layer, a plurality of extended message is positioned in described codec protocd layer; Protocol of encode and decode module, is sent to a source codec distributor parsing by described codec protocd layer by unified for described a plurality of extended message; Message distribution module, for carrying out distribution processor according to analysis result to described a plurality of extended message.
In the device that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described protocol of encode and decode module is also for being defined as same source codec distributor and same codec format by described codec protocd layer by described a plurality of extended message.
In the device that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described coding module is also for being encoded to class name and the name space of the corresponding programming language class of described extended message by described extended message tag name and name space.
In the device that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described message distribution module also for: resolve described a plurality of extended message by described source codec distributor, obtain the node location of described a plurality of extended message; According to described node location, described extended message is distributed to correspondence position and processes.
Advantageous Effects of the present invention is: by increasing on extended instruction message upper strata message encoding and decoding presentation layer agreement, realizing unified object message and changing the mechanism, thus without the need to providing resolver for each extended message again, to improve development efficiency; Additionally by quoting lightweight JSON hybrid coding, reaching and can meet extensibility, the object that message consumes delivery flow rate on Mobile solution can be reduced again.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form limitation of the invention.In the accompanying drawings:
Fig. 1 is that in prior art, XMPP Data classification resolves schematic diagram;
Fig. 2 is the schematic flow sheet of the method that the message category based on XMPP extended message provided by the present invention realizes;
Fig. 3 is that method one preferred embodiment that the message category based on XMPP extended message provided by the present invention realizes resolves schematic diagram.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further details.At this, schematic description and description of the present invention is for explaining the present invention, but not as a limitation of the invention.
In the instant communications field, XMPP is subject to the generally accreditation of industry, and derives many middlewares of increasing income, as XMPP server Openfire, Smart client component etc.Based on this, the extended message mechanism that third-party application can retain according to XMPP, realizes own service extended message and instruction, meets the business demand of self.
In XMPP communication protocol, define conventional three major types type message, comprise information inquiry and setting (iq), presence status Notification of Changes (presence) and user's chat messages (message), wherein iq instruction is by the information inquiry between user and server and setting, presence is then for sending the change of User Status, its objective is the change notifying the various state of online user's real-time perception, as good friend is rolled off the production line; Message, then for sending the chat messages between user, also may be used for the Message Transmission between Internet of Things application distribution device, and these message will be preserved by off-line when recipient is not online.In XMPP, define the sub-protocol of various general scene, as the management of good friend's register, the management of group chat room.But this scene also cannot meet the needs of all business, therefore XMPP has also worked out the extended mode of a set of custom instruction, and this method is just based on a kind of method that the JSON encoding and decoding message category of XMPP extended message realizes.
Please refer to shown in Fig. 2, the method that the message category based on XMPP extended message provided by the present invention realizes, specifically comprising: S101 adds codec protocd layer in XMPP stack, a plurality of extended message is packaged in described codec protocd layer; S102 is sent to a source codec distributor parsing by described codec protocd layer by unified for described a plurality of extended message; S103 carries out distribution processor according to analysis result to described a plurality of extended message.
In above-mentioned steps S101, described codec protocd layer is used for described a plurality of extended message to be defined as same source codec distributor and same codec format.Concrete mode, can add agreement character string at described a plurality of extended message prefix place, is a specific codec format by the character string definition extended message thereafter of described agreement and is decoded at ad-hoc location.Wherein, described specific codec format is presentation layer data format; the lightweight hybrid codings such as such as JSON data interchange format; what deserves to be explained is; relevant technical staff in the field is when known; above-mentioned JSON data interchange format is only a preferred embodiment, and the present invention does not limit and only adopts JSON data interchange format, and any data format that can reach demand effect of the present invention all should be included within protection scope of the present invention.
In above-mentioned steps S101, for compiling conveniently, can carry out preliminary treatment to described extended message before the coding, such as, be class name and the name space of the corresponding programming language class of described extended message by described extended message tag name and name space; More easy when being convenient to later stage selective decompression device with this.
In above-mentioned steps S103, describedly according to analysis result, distribution processor is carried out to described a plurality of extended message and comprise: resolve described a plurality of extended message by described source codec distributor, obtain the node location of described a plurality of extended message; According to described node location, described extended message is distributed to correspondence position and processes.The mode that this processing mode is still defined by XMPP is distributed, and with this, makes to change less situation in former XMPP and assigns into above-mentioned effect of the present invention.
The device that the present invention also provides a kind of message category based on XMPP extended message to realize, described device specifically comprises: coding module, in XMPP stack, add codec protocd layer, a plurality of extended message is positioned in described codec protocd layer; Protocol of encode and decode module, is sent to a source codec distributor parsing by described codec protocd layer by unified for described a plurality of extended message; Message distribution module, for carrying out distribution processor according to analysis result to described a plurality of extended message.
In the device that the above-mentioned message category based on XMPP extended message realizes, preferably also comprise: described protocol of encode and decode module is also for being defined as same source codec distributor and same codec format by described codec protocd layer by described a plurality of extended message.Described coding module is also for being encoded to class name and the name space of the corresponding programming language class of described extended message by described extended message tag name and name space.Described message distribution module also for: resolve described a plurality of extended message by described source codec distributor, obtain the node location of described a plurality of extended message; According to described node location, described extended message is distributed to correspondence position and processes.
Just put forward flow process by what further illustrate method that the message category based on XMPP extended message provided by the present invention realizes with an embodiment below, but do not limit the specific embodiment of the present invention.
Step one, in real work, the outermost layer of the XMPP stack in coded format of the present invention retains the News Category (iq, presence or message) of XMPP agreement, does not make and changes;
Step 2, the present invention and prior art one difference are, extended message is no longer directly placed in News Category by the present invention, but add one deck codec protocd layer in this XMPP stack, adopt which kind of mode encoding and decoding for defining extended message.
Step 3, extended message are put in in codec protocd layer, and its coding no longer needs to follow XML format to arrange.In order to make message brief as far as possible, described extended message tag name and name space are class name and the name space of the corresponding programming language class of described extended message.
Step 4, when message is received resolve time, extended message is unified points to same parsing distributor, is resolved into the message object model instance that programming language can identify.
Step 5, Message Dispatch Processor identification message object model example, object handler Manage Containers can find the processor of message model object easily, realizes the processing response to message.
Only need to change step 2 in above-mentioned flow process, the problems such as the efficiency of transmission existed in prior art is low can be overcome.
Please refer to shown in Fig. 3, below with Fig. 3 citing, the present invention, by expansion XMPP, realizes the notice to group chat room Status Change event again.Below describe class example com.miteno.im.muc.InfoChanged (information-change) class how defined by an object oriented language by XMPP extended message to pass to receiving system and resolve distribution:
Step one, definition InfoChanged class (this example realizes with Java language, but does not limit the type of language)
Step 2, encode to InfoChanged example when sending, by increasing encode layer, the unified json that adopts of agreement built-in extension message carries out encoding and decoding, more down one deck is only the instruction message InfoChanged of service apparatus expansion.
Step 3, source codec
Arrange by XMPP, the encode node of this example is only the extended message meeting XMPP standard, to meet tag name (tag) is encode, and the XML node that name space (xmlns) is com.miteno.xmpp transfers to the process of unified message source codec distributor.
1, according to <InfoChanged xmlns='com.miteno.im.muc'>, we know that this message corresponding object oriented language class full name is xmlns+ ". " character string of+tag composition, namely " com.miteno.im.muc.InfoChanged "; By arbitrary json decoder, InfoChanged Content Transformation is become com.miteno.im.muc.InfoChanged class example, does not discuss scope in the present invention, this is not limited, below committed step is illustrated:
a)Class<T>beanClass＝(Class<T>)Class.forName(“com.miteno.im.muc.InfoChanged”)；
B) String jsonText=... // be text before operation expanding message parse herein
c)InfoChanged infochanged＝(InfoChanged)JsonMapper().fromJson(jsonText,beanClass)；
2, after message is resolved into com.miteno.im.muc.InfoChanged class example, receiving system can read message object information more easily and carry out distribution processor and response.
By increasing on extended instruction message upper strata message encoding and decoding presentation layer agreement, realizing unified object message and changing the mechanism, thus without the need to providing resolver for each extended message again, to improve development efficiency; Additionally by quoting lightweight JSON hybrid coding, reaching and can meet extensibility, the object that message consumes delivery flow rate on Mobile solution can be reduced again.
In above-described embodiment:
The subset of XML standard generalized markup language a kind ofly makes it have structural markup language for electroactive marker subfile.XMPP is the agreement based on extend markup language (XML), and it is for instant message (IM) and online in-situ measurement.It is promoting the accurate real time operation between distributed devices.JSON is a kind of data interchange format of lightweight, possesses good extensibility equally.It is based on a subset of ECMAScript.JSON adopts the text formatting being totally independent of language, but also using the custom (comprising C, C++, C#, Java, JavaScript, Perl, Python etc.) being similar to C language family.The data interchange language that these characteristics make JSON become desirable.Be easy to people read and write, be also easy to machine simultaneously and resolve and generate (network transmission speed).
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1., based on the method that the message category of XMPP extended message realizes, it is characterized in that, described method comprises:
In XMPP stack, add codec protocd layer, a plurality of extended message is positioned in described codec protocd layer;
A source codec distributor parsing is sent to by unified for described a plurality of extended message by described codec protocd layer;
According to analysis result, distribution processor is carried out to described a plurality of extended message.
2. the method for the realization of the message category based on XMPP extended message according to claim 1, is characterized in that, described codec protocd layer is used for described a plurality of extended message to be defined as same source codec distributor and same codec format.
3. the method for the realization of the message category based on XMPP extended message according to claim 2, it is characterized in that, described codec format is presentation layer data format.
4. the method for the realization of the message category based on XMPP extended message according to claim 3, it is characterized in that, described presentation layer data format is JSON data conversion format.
5. the method for the realization of the message category based on XMPP extended message according to claim 1, it is characterized in that, tag name and the name space of described extended message are class name and the name space of the corresponding programming language class of described extended message.
6. the method that realizes of the message category based on XMPP extended message according to claim 1, is characterized in that, describedly carries out distribution processor according to analysis result to described a plurality of extended message and comprises:
Resolve described a plurality of extended message by described source codec distributor, obtain the node location of described a plurality of extended message;
According to described node location, described extended message is distributed to correspondence position and processes.
7., based on the device that the message category of XMPP extended message realizes, it is characterized in that, described device comprises:
Coding module, adds codec protocd layer in XMPP stack, a plurality of extended message is positioned in described codec protocd layer;
Protocol of encode and decode module, is sent to a source codec distributor parsing by described codec protocd layer by unified for described a plurality of extended message;
Message distribution module, for carrying out distribution processor according to analysis result to described a plurality of extended message.
8. the device of the realization of the message category based on XMPP extended message according to claim 7, it is characterized in that, described protocol of encode and decode module is also for being defined as same source codec distributor and same codec format by described codec protocd layer by described a plurality of extended message.
9. the device of the realization of the message category based on XMPP extended message according to claim 7, it is characterized in that, described coding module is also for being encoded to class name and the name space of the corresponding programming language class of described extended message by described extended message tag name and name space.
10. the device of the realization of the message category based on XMPP extended message according to claim 7, it is characterized in that, described message distribution module also for: resolve described a plurality of extended message by described source codec distributor, obtain the node location of described a plurality of extended message; According to described node location, described extended message is distributed to correspondence position and processes.
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