CN112035414A - Metadata streaming method, device and computer readable medium - Google Patents
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Abstract
The invention provides a metadata streaming method, a device and a computer readable medium, wherein the method comprises the following steps: acquiring at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata; acquiring at least one field to be assigned in a target document; establishing a mapping relation between each field to be assigned in the at least one field to be assigned and at least one source field; for each field to be assigned in the at least one field to be assigned, executing: determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation; and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule. The scheme of the invention can reduce the error rate of metadata streaming.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a metadata streaming method, apparatus, and computer readable medium.
Background
Metadata (Metadata) is data describing other data (e.g., objects such as information resources or data), or structural data (structured data) for providing information about a certain resource.
In the ERP system, metadata circulation among various business documents is involved. For example, after the purchase order is audited, a purchase warehousing document needs to be created, and then metadata of various business documents on the purchase order is streamed to the warehousing document. In the prior art, a service person is usually required to manually transfer metadata, so that the error rate of metadata transfer is easily increased.
Therefore, there is a need for a metadata streaming method, apparatus and computer readable medium to solve the above problems.
Disclosure of Invention
The embodiment of the invention provides a metadata streaming method, a metadata streaming device and a computer readable medium, which can reduce the error rate of metadata streaming.
In a first aspect, an embodiment of the present invention provides a metadata streaming method, including:
acquiring at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata;
acquiring at least one field to be assigned in a target document;
establishing a mapping relation between each field to be assigned in the at least one field to be assigned and at least one source field;
for each field to be assigned in the at least one field to be assigned, executing:
determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation;
and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule.
In a possible implementation manner, the establishing a mapping relationship between each to-be-assigned field of the at least one to-be-assigned field and at least one source field includes:
determining whether a source field with the same meaning as one of the fields to be assigned exists;
if a source field with the same meaning as one field to be assigned exists, establishing a first mapping relation between the field to be assigned and the source field;
determining at least one target source field corresponding to the current field to be assigned according to the current field to be assigned and the mapping relationship, wherein the determining comprises:
determining a first target source field corresponding to the field to be assigned according to the field to be assigned and the first mapping relation;
assigning all the first metadata in the at least one target source field to the current field to be assigned according to a set assignment rule, including:
determining whether the number of source metadata in the first target source field is one;
and if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
In a possible implementation manner, the establishing a mapping relationship between each to-be-assigned field of the at least one to-be-assigned field and at least one source field further includes:
if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule;
if at least two source fields which accord with the correlation rule exist, determining a second target source field according to the at least two source fields and the correlation rule; wherein the source metadata carried by the second target source field is determined according to all the first metadata carried by the at least two source fields and the correlation rule;
determining whether the second target source field has the same meaning with one field to be assigned;
if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relation between the fields to be assigned and the second target source field;
determining at least one target source field corresponding to the current field to be assigned according to the current field to be assigned and the mapping relationship, wherein the determining comprises:
determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation;
assigning all the first metadata in the at least one target source field to the current field to be assigned according to a set assignment rule, including:
determining whether the number of source metadata in the second target source field is one;
and if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
In a possible implementation manner, after the determining whether there are at least two source fields meeting the relevance rule according to the preset relevance rule, the method further includes:
if at least two source fields meeting the correlation rule do not exist, calling a preset supplementary field database; the field database stores at least one supplementary field, and each supplementary field in the at least one supplementary field carries at least one supplementary metadata;
establishing a third mapping relation between the first field to be assigned and the supplementary field; the first field to be assigned is a field to be assigned with a different meaning from a source field or a field to be assigned with a different meaning from a second target source field;
for each first field to be assigned of the at least one field to be assigned, performing:
determining a target supplementary field corresponding to the current first field to be assigned according to the current field to be assigned and the three mapping relations;
and acquiring one supplementary metadata carried by the target supplementary field, and assigning the supplementary metadata to the current first field to be assigned.
In a possible implementation manner, the assigning all source metadata in the at least one target source field to the field to be currently assigned according to a set assignment rule further includes:
if the number of the source metadata in the first target source field is not one or if the number of the source metadata in the second target source field is not one, determining the current field to be assigned as a second field to be assigned, and calling a cloud function database; at least one cloud function is stored in the cloud function database;
establishing a fourth mapping relation between the second field to be assigned and the cloud function;
determining a target cloud function corresponding to the second field to be assigned according to the second field to be assigned and the fourth mapping relation;
and processing all source metadata carried by the first target source field by using the target cloud function, acquiring target source metadata, and assigning the target source metadata to the second field to be assigned.
In a second aspect, an embodiment of the present invention provides a metadata streaming apparatus, including:
the first acquisition module is used for acquiring at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata;
the second acquisition module is used for acquiring at least one field to be assigned in the target document;
the mapping establishing module is used for establishing a mapping relation between each field to be assigned in the at least one field to be assigned and at least one source field;
a loop execution module, configured to execute, for each to-be-assigned field of the at least one to-be-assigned field:
determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation;
and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule.
In a possible implementation manner, the mapping establishing module is configured to perform the following operations:
determining whether a source field with the same meaning as one of the fields to be assigned exists;
if a source field with the same meaning as one field to be assigned exists, establishing a first mapping relation between the field to be assigned and the source field;
the loop execution module is used for executing the following operations:
determining a first target source field corresponding to the field to be assigned according to the field to be assigned and the first mapping relation;
determining whether the number of source metadata in the first target source field is one;
and if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
In a possible implementation manner, the mapping establishing module is further configured to perform the following operations:
if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule;
if at least two source fields which accord with the correlation rule exist, determining a second target source field according to the at least two source fields and the correlation rule; wherein the source metadata carried by the second target source field is determined according to all the first metadata carried by the at least two source fields and the correlation rule;
determining whether the second target source field has the same meaning with one field to be assigned;
if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relation between the fields to be assigned and the second target source field;
the loop execution module is further configured to perform the following operations:
determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation;
determining whether the number of source metadata in the second target source field is one;
and if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
In a third aspect, an embodiment of the present invention provides a metadata streaming apparatus, including: at least one memory and at least one processor;
the at least one memory to store a machine readable program;
the at least one processor is configured to invoke the machine-readable program to perform the method described above.
In a fourth aspect, embodiments of the present invention provide a computer-readable medium having stored thereon computer instructions, which, when executed by a processor, cause the processor to perform the method described above.
According to the scheme, the metadata streaming method, the metadata streaming device and the computer readable medium provided by the invention have the advantages that the mapping relation between each field to be assigned in at least one field to be assigned and at least one source field is established; for each field to be assigned in at least one field to be assigned, executing: determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation; and assigning all source metadata in at least one target source field to the current field to be assigned according to a set assignment rule. Therefore, the method replaces the mode that business personnel manually transfer the metadata by establishing the mapping relation between the fields to be assigned and the source fields, and therefore the error rate of metadata transfer can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a metadata streaming method provided by a first embodiment of the present invention;
FIG. 2 is a flow chart of a metadata streaming method according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a metadata streaming method according to a third embodiment of the present invention;
FIG. 4 is a flowchart of a metadata streaming method according to a fourth embodiment of the present invention;
FIG. 5 is a flowchart of a metadata streaming method according to a fifth embodiment of the present invention;
fig. 6 is a schematic diagram of a device in which a metadata streaming apparatus according to an embodiment of the present invention is located;
fig. 7 is a schematic diagram of a metadata streaming apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
Fig. 1 is a flowchart of a metadata streaming method according to an embodiment of the present invention. As shown in fig. 1, the method may include the steps of:
102, acquiring at least one field to be assigned in a target document;
103, establishing a mapping relation between each field to be assigned and at least one source field in the at least one field to be assigned;
step 104, for each field to be assigned in the at least one field to be assigned, executing:
determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation;
and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule.
In the embodiment of the invention, the metadata circulation method provided by the invention establishes the mapping relation between each field to be assigned in at least one field to be assigned and at least one source field; for each field to be assigned in at least one field to be assigned, executing: determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation; and assigning all source metadata in at least one target source field to the current field to be assigned according to a set assignment rule. Therefore, the method replaces the mode that business personnel manually transfer the metadata by establishing the mapping relation between the fields to be assigned and the source fields, and therefore the error rate of metadata transfer can be effectively reduced.
Based on the metadata streaming method shown in fig. 1, in an embodiment of the present invention, the establishing a mapping relationship between each field to be assigned and at least one source field in the at least one field to be assigned includes:
determining whether a source field with the same meaning as one of the fields to be assigned exists;
if a source field with the same meaning as one field to be assigned exists, establishing a first mapping relation between the field to be assigned and the source field;
determining at least one target source field corresponding to the current field to be assigned according to the current field to be assigned and the mapping relationship, wherein the determining comprises:
determining a first target source field corresponding to the field to be assigned according to the field to be assigned and the first mapping relation;
assigning all the first metadata in the at least one target source field to the current field to be assigned according to a set assignment rule, including:
determining whether the number of source metadata in the first target source field is one;
and if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
In the embodiment of the invention, when one source field with the same meaning as one field to be assigned exists, the source field has one and only one field; then, if the number of the source metadata in the first target source field is determined to be one, the first target source field can be proved to be the source field with the simplest logical processing, so that the source metadata of the first target source field can be directly assigned to the field to be assigned currently, and the metadata circulation of the source field with the simplest logical processing is facilitated.
Based on the metadata streaming method shown in fig. 1, in an embodiment of the present invention, the establishing a mapping relationship between each field to be assigned and at least one source field in the at least one field to be assigned further includes:
if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule;
if at least two source fields which accord with the correlation rule exist, determining a second target source field according to the at least two source fields and the correlation rule; wherein the source metadata carried by the second target source field is determined according to all the first metadata carried by the at least two source fields and the correlation rule;
determining whether the second target source field has the same meaning with one field to be assigned;
if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relation between the fields to be assigned and the second target source field;
determining at least one target source field corresponding to the current field to be assigned according to the current field to be assigned and the mapping relationship, wherein the determining comprises:
determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation;
assigning all the first metadata in the at least one target source field to the current field to be assigned according to a set assignment rule, including:
determining whether the number of source metadata in the second target source field is one;
and if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
In the embodiment of the invention, when one source field with the same meaning as one field to be assigned does not exist and at least two source fields meeting the correlation rule exist, the source field does not have one source field; then, if the number of the source metadata in the second target source field determined by the relevance rule is determined to be one, the second target source field can be proved to be a source field with slightly complex logic processing, so that the source metadata carried by the second target source field can be assigned to the field to be currently assigned, and the metadata circulation of the source field with slightly complex logic processing is facilitated.
Based on the metadata streaming method shown in fig. 1, in an embodiment of the present invention, after determining whether there are at least two source fields meeting the dependency rule according to a preset dependency rule, the method further includes:
if at least two source fields meeting the correlation rule do not exist, calling a preset supplementary field database; the field database stores at least one supplementary field, and each supplementary field in the at least one supplementary field carries at least one supplementary metadata;
establishing a third mapping relation between the first field to be assigned and the supplementary field; the first field to be assigned is a field to be assigned with a different meaning from a source field or a field to be assigned with a different meaning from a second target source field;
for each first field to be assigned of the at least one field to be assigned, performing:
determining a target supplementary field corresponding to the current first field to be assigned according to the current field to be assigned and the three mapping relations;
and acquiring one supplementary metadata carried by the target supplementary field, and assigning the supplementary metadata to the current first field to be assigned.
In the embodiment of the invention, when one source field with the same meaning as one field to be assigned does not exist and at least two source fields meeting the correlation rule do not exist, the source field represents that a first target source field and a second target source field do not exist; and then, assigning the current field to be assigned by the aid of supplementary metadata provided by a supplementary field database, so that metadata circulation of the field to be assigned under the condition is facilitated.
Based on the metadata circulation method shown in fig. 1, in an embodiment of the present invention, assigning all source metadata in the at least one target source field to the field to be currently assigned according to a set assignment rule, further includes:
if the number of the source metadata in the first target source field is not one or if the number of the source metadata in the second target source field is not one, determining the current field to be assigned as a second field to be assigned, and calling a cloud function database; at least one cloud function is stored in the cloud function database;
establishing a fourth mapping relation between the second field to be assigned and the cloud function;
determining a target cloud function corresponding to the second field to be assigned according to the second field to be assigned and the fourth mapping relation;
and processing all source metadata carried by the first target source field by using the target cloud function, acquiring target source metadata, and assigning the target source metadata to the second field to be assigned.
In the embodiment of the present invention, if the number of the source metadata in the first target source field is not one or if the number of the source metadata in the second target source field is not one, it can be verified that the first target source field or the second target source field is a source field with a complex logic processing, and the above three metadata circulation schemes cannot be adapted to the source field with the complex logic processing.
It is understood that a cloud Function (FaaS) is a type of cloud computing service, which provides a platform. On this platform, users can develop, run, and manage application functionality, but without the need to build and maintain the infrastructure normally associated with developing and launching applications. FaaS frees developers from complicated operation, maintenance and deployment work, concentrates on application program development, and can effectively improve the development efficiency of application programs.
At present, in an ERP system, besides a mode of manually transferring metadata, metadata transfer between documents can be realized through a background developer according to the requirements of product design, namely, through codes. However, this method requires a background developer to implement the metadata through code after knowing the requirements each time, and such a development cost and time cost are high and not universal, for example, when a new service requirement of metadata streaming occurs, a set of service logic code needs to be re-developed.
However, even when the cloud function provided by the cloud function database cannot support complex business logic, the user can write the corresponding cloud function in the front-end page without writing the code in the background, that is, the program code added to the front-end page is loaded into the environment in which the code runs to form a new cloud function, so that the new cloud function can be used for processing the business requirement of new metadata streaming, and the development cost and the time cost can be reduced.
As shown in fig. 2, the first embodiment of the present invention further provides a metadata streaming method. The method comprises the following steps:
In this step, the source document may be, for example, electronic data obtained by converting documents such as paper documents and electronic documents by OCR technology, where the electronic data (i.e., the source document) includes at least one source field, and each source field carries at least one source metadata. For example, the source document is a reimbursement document, the source field includes a company name, an invoice type, a reimbursement item quantity, a reimbursement item unit price, a total reimbursement item amount, an exchange rate, and the like, the source metadata of the company name includes at least a parent company of the company (for example, a subsidiary company of the company may also be included), and the source metadata of the invoice type includes a value-added tax special invoice, a general invoice, and a professional invoice.
In this step, the target document may be, for example, a self-defined warehousing document of the company, and therefore, fields to be assigned in the target document may change according to actual business scenes of different companies or different customers. For example, the fields to be assigned may also include company name, invoice type, reimbursement item quantity, reimbursement item unit price, total reimbursement item amount, exchange rate, and the like.
In this step, it is determined whether there is one source field having the same meaning as one of the fields to be assigned, for example, by polling all the fields to be assigned and the source field. Where the same meaning is understood to mean: for example, the name of the source field may be total price of the reimbursed item, and the name of the field to be assigned may be total price of the commodity, so that "total price of the reimbursed item" and "total price of the commodity" may be regarded as fields having the same meaning. By the arrangement, the problem that metadata cannot smoothly flow due to the fact that naming of the fields is not standardized can be avoided.
In this step, the first mapping relationship may be, for example: the source field is total price of the reimbursed goods, and the field to be assigned is total price of the commodity; the source field is a company name, and the field to be assigned is the company name; the source field is the invoice type, and the field to be assigned is the invoice type. The remaining cases are not exhaustive here.
In this step, when metadata is forwarded, for example, when the field to be assigned is an invoice type during forwarding, the invoice type in the source document corresponding to the invoice type in the target document may be determined according to the invoice type and the first mapping relationship.
In this step, following step 205, the number of source metadata of the invoice type in the source document is calculated to obtain whether the number of source metadata is one or more than one.
And step 207, if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
In this step, the first target source field can be regarded as the source field with the simplest logical processing, so that the source metadata of the first target source field can be directly assigned to the field to be currently assigned, thereby facilitating metadata circulation of the source field with simple logical processing. For example, the invoice type in the source document only carries one source metadata of the common invoice, and at this time, the common invoice can be directly copied to the current field to be assigned (i.e., the invoice type of the target document). For another example, the source metadata of the total amount of the reimbursed items in the source document is 1000, and at this time, 1000 may be directly assigned to the field to be currently assigned (i.e., the total amount of the reimbursed items or the total price of the goods in the target document).
As shown in fig. 3, the second embodiment of the present invention further provides a metadata streaming method. The method comprises the following steps:
301, acquiring at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata.
In this step, the detailed description of step 201 can be referred to.
In this step, see the detailed description of step 202.
In this step, see the detailed description of step 203.
And step 304, if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule.
In this step, for example, the field to be assigned is the total of the incoming prices of the commodities, but there is no source field in the source document having the same meaning as "total of the incoming prices of the commodities". At this time, it may be determined whether there are at least two source fields that meet the correlation rule according to the result of polling all the source fields. For example, the correlation rule may be that the quantity has a correlation with the unit price, and the correlation algorithm of the two may be a multiplication, so that the at least two source fields conforming to the correlation rule include the quantity of reimbursed items and the unit price of reimbursed items; for another example, the correlation rule may be that the quantity, the price and the exchange rate have correlation, and the correlation algorithm of the three may be multiplication, so that at least two source fields conforming to the correlation rule include the quantity of the reimbursed item, the price of the reimbursed item and the exchange rate.
In this step, a second target source field, determined, for example, based on the quantity of the reimbursed item and the price of the reimbursed item, may be named as the total amount of the reimbursed item, per step 304. At this time, for example, the source metadata of the number of reimbursed items in the source document is 100, the source metadata of the unit price of reimbursed items in the source document is 10, and the correlation algorithm of the two is multiplication, so that the source metadata carried by the total amount of reimbursed items in the source document is 1000.
Of course, a second target source field determined by the number of reimbursed items, the price of reimbursed items, and the exchange rate may also be named the total amount of reimbursed items.
In this step, following step 305, all fields to be assigned and all second target source fields are then polled. For example, after naming the second re-determined target source field as the total amount of the reimbursed items, the total amount of the reimbursed items may be determined by polling again to have the same meaning as the "total amount of the incoming merchandise price" of the field to be assigned.
Step 307, if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relationship between the field to be assigned and the second target source field.
In this step, see the detailed description of step 204.
And 308, determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation.
In this step, see the detailed description of step 205.
In this step, see the detailed description of step 206.
And step 310, if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
In this step, see the detailed description of step 207. It should be noted that the second target source field is a source field with a slightly complex logical processing, so that the source metadata carried by the second target source field can be assigned to the field to be currently assigned, thereby facilitating metadata circulation of the source field with the slightly complex logical processing. Next to step 305, the source metadata 1000 in step 305 may be copied to the total in-stock price in the target document, for example.
As shown in fig. 4, the third embodiment of the present invention further provides a metadata streaming method. The method comprises the following steps:
In this step, the detailed description of step 201 can be referred to.
In this step, see the detailed description of step 202.
In this step, see the detailed description of step 203.
In this step, see the detailed description of step 304.
In the step, when all the source fields in the source document cannot correspond to the current fields to be assigned, the preset supplementary field database is called to realize that the fields to be assigned of the target document are not empty. For example, the field to be assigned is a company name, but all the source fields have no company name, and at this time, the supplementary field of the company name is found by calling a preset supplementary field database.
In this step, following step 405, for example, the first field to be assigned is a company name, at this time, a third mapping relationship between the company name in the target document and the company name in the supplementary field database may be established.
Step 407, for each first field to be assigned in the at least one field to be assigned, performing:
determining a target supplementary field corresponding to the current first field to be assigned according to the current field to be assigned and the three mapping relations;
and acquiring one supplementary metadata carried by the target supplementary field, and assigning the supplementary metadata to the current first field to be assigned.
In this step, following step 406, if the supplementary metadata that the user wants to select is found in the company name in the supplementary field database, the supplementary metadata is assigned to the first field to be assigned. It will be appreciated that there is still no metadata in all the supplementary metadata in the supplementary fields that the user wants to select, and this metadata can be manually entered by the user into the field to be assigned to accomplish the correct assignment of the field to be assigned.
As shown in fig. 5, the fourth embodiment of the present invention further provides a metadata streaming method. The method comprises the following steps:
In this step, the detailed description of step 201 can be referred to.
And 502, acquiring at least one field to be assigned in the target bill.
In this step, see the detailed description of step 202.
In this step, see the detailed description of step 203.
In this step, see the detailed description of step 204.
And 505, determining a first target source field corresponding to the current field to be assigned according to the current field to be assigned and the first mapping relation.
In this step, see the detailed description of step 205.
In this step, see the detailed description of step 206.
In this step, it can be verified that the first target source field or the second target source field is a source field with complex logic processing, and the three metadata forwarding schemes (i.e. the first embodiment, the second embodiment and the third embodiment) cannot be adapted to the source field with complex logic processing, so that the source field with complex logic processing is processed by the cloud function provided by the cloud function database.
And step 508, establishing a fourth mapping relation between the second field to be assigned and the cloud function.
And step 510, processing all source metadata carried by the first target source field by using the target cloud function, obtaining target source metadata, and assigning the target source metadata to the second field to be assigned.
To sum up, the metadata streaming method provided by the above four embodiments can make metadata streaming more flexible, can adapt to various complex service scenarios, reduces the problem of easy error in manually performing metadata streaming, can be implemented without a background code, and improves efficiency and flexibility. Developers do not need to write background codes for each new service requirement, only need to write logic codes on a front-end page according to the new requirement, and achieve functions, and complex steps for implementation and deployment are omitted.
As shown in fig. 6 and fig. 7, an embodiment of the present invention provides a device where a metadata streaming apparatus is located and a metadata streaming apparatus. The device embodiments may be implemented by software, or by hardware, or by a combination of hardware and software. From a hardware aspect, as shown in fig. 6, a hardware structure diagram of a device in which the metadata streaming apparatus provided in the embodiment of the present invention is located is shown, where in addition to the processor, the memory, the network interface, and the nonvolatile memory shown in fig. 6, the device in the embodiment may also include other hardware, such as a forwarding chip responsible for processing a packet, in general. Taking a software implementation as an example, as shown in fig. 7, as a logical apparatus, the apparatus is formed by reading, by a CPU of a device in which the apparatus is located, corresponding computer program instructions in a non-volatile memory into a memory for execution.
As shown in fig. 7, the metadata streaming apparatus provided in this embodiment includes:
a first obtaining module 701, configured to obtain at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata;
a second obtaining module 702, configured to obtain at least one field to be assigned in the target document;
a mapping establishing module 703, configured to establish a mapping relationship between each to-be-assigned field in the at least one to-be-assigned field and at least one source field;
a loop executing module 704, configured to, for each to-be-assigned field of the at least one to-be-assigned field, execute:
determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation;
and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule.
In an embodiment of the present invention, the mapping establishing module 703 is configured to perform the following operations:
determining whether a source field with the same meaning as one of the fields to be assigned exists;
if a source field with the same meaning as one field to be assigned exists, establishing a first mapping relation between the field to be assigned and the source field;
the loop execution module 704 is configured to perform the following operations:
determining a first target source field corresponding to the field to be assigned according to the field to be assigned and the first mapping relation;
determining whether the number of source metadata in the first target source field is one;
and if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
In an embodiment of the present invention, the mapping establishing module 703 is further configured to perform the following operations:
if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule;
if at least two source fields which accord with the correlation rule exist, determining a second target source field according to the at least two source fields and the correlation rule; wherein the source metadata carried by the second target source field is determined according to all the first metadata carried by the at least two source fields and the correlation rule;
determining whether the second target source field has the same meaning with one field to be assigned;
if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relation between the fields to be assigned and the second target source field;
the loop execution module 704 is further configured to perform the following operations:
determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation;
determining whether the number of source metadata in the second target source field is one;
and if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
In one embodiment of the present invention, further comprising:
the field calling submodule is used for calling a preset supplementary field database if at least two source fields meeting the correlation rule do not exist; the field database stores at least one supplementary field, and each supplementary field in the at least one supplementary field carries at least one supplementary metadata;
the first mapping establishing submodule is used for establishing a third mapping relation between the first field to be assigned and the supplementary field; the first field to be assigned is a field to be assigned with a different meaning from a source field or a field to be assigned with a different meaning from a second target source field;
a loop execution sub-module, configured to, for each first field to be assigned in the at least one field to be assigned, execute:
determining a target supplementary field corresponding to the current first field to be assigned according to the current field to be assigned and the three mapping relations;
and acquiring one supplementary metadata carried by the target supplementary field, and assigning the supplementary metadata to the current first field to be assigned.
In an embodiment of the present invention, the loop execution module further includes:
the cloud function calling submodule is used for determining the current field to be assigned as a second field to be assigned if the number of the source metadata in the first target source field is not one or if the number of the source metadata in the second target source field is not one, and calling the cloud function database; at least one cloud function is stored in the cloud function database;
the second mapping establishing submodule is used for establishing a fourth mapping relation between the second field to be assigned and the cloud function;
the cloud function determining submodule is used for determining a target cloud function corresponding to the second field to be assigned according to the second field to be assigned and the fourth mapping relation;
and the assignment sub-module is used for processing all source metadata carried by the first target source field by using the target cloud function, obtaining target source metadata and assigning the target source metadata to the second field to be assigned.
It is to be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the metadata streaming apparatus. In other embodiments of the invention, the metadata streamer may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Because the content of information interaction, execution process, and the like among the modules in the device is based on the same concept as the method embodiment of the present invention, specific content can be referred to the description in the method embodiment of the present invention, and is not described herein again.
An embodiment of the present invention further provides a metadata streaming apparatus, including: at least one memory and at least one processor;
the at least one memory to store a machine readable program;
the at least one processor is configured to invoke the machine readable program to perform the metadata streaming method in any embodiment of the present invention.
Embodiments of the present invention also provide a computer-readable medium storing instructions for causing a computer to perform a metadata streaming method as described herein. Specifically, a method or an apparatus equipped with a storage medium on which a software program code that realizes the functions of any of the above-described embodiments is stored may be provided, and a computer (or a CPU or MPU) of the method or the apparatus is caused to read out and execute the program code stored in the storage medium.
In this case, the program code itself read from the storage medium can realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.
Examples of the storage medium for supplying the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW), a magnetic tape, a nonvolatile memory card, and a ROM. Alternatively, the program code may be downloaded from a server computer via a communications network.
Further, it should be clear that the functions of any one of the above-described embodiments can be implemented not only by executing the program code read out by the computer, but also by performing a part or all of the actual operations by an operation method or the like operating on the computer based on instructions of the program code.
Further, it is to be understood that the program code read out from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion unit connected to the computer, and then causes a CPU or the like mounted on the expansion board or the expansion unit to perform part or all of the actual operations based on instructions of the program code, thereby realizing the functions of any of the above-described embodiments.
In summary, the metadata streaming method, apparatus and computer readable medium provided in the embodiments of the present invention have at least the following advantages:
1. in the embodiment of the invention, the metadata circulation method provided by the invention establishes the mapping relation between each field to be assigned in at least one field to be assigned and at least one source field; for each field to be assigned in at least one field to be assigned, executing: determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation; and assigning all source metadata in at least one target source field to the current field to be assigned according to a set assignment rule. Therefore, the method replaces the mode that business personnel manually transfer the metadata by establishing the mapping relation between the fields to be assigned and the source fields, and therefore the error rate of metadata transfer can be effectively reduced.
2. In the embodiment of the invention, when one source field with the same meaning as one field to be assigned exists, the source field has one and only one field; then, if the number of the source metadata in the first target source field is determined to be one, the first target source field can be proved to be the source field with the simplest logical processing, so that the source metadata of the first target source field can be directly assigned to the field to be assigned currently, and the metadata circulation of the source field with the simplest logical processing is facilitated.
3. In the embodiment of the invention, when one source field with the same meaning as one field to be assigned does not exist and at least two source fields meeting the correlation rule exist, the source field does not have one source field; then, if the number of the source metadata in the second target source field determined by the relevance rule is determined to be one, the second target source field can be proved to be a source field with slightly complex logic processing, so that the source metadata carried by the second target source field can be assigned to the field to be currently assigned, and the metadata circulation of the source field with slightly complex logic processing is facilitated.
4. In the embodiment of the invention, when one source field with the same meaning as one field to be assigned does not exist and at least two source fields meeting the correlation rule do not exist, the source field represents that a first target source field and a second target source field do not exist; and then, assigning the current field to be assigned by the aid of supplementary metadata provided by a supplementary field database, so that metadata circulation of the field to be assigned under the condition is facilitated.
5. In the embodiment of the present invention, if the number of the source metadata in the first target source field is not one or if the number of the source metadata in the second target source field is not one, it can be verified that the first target source field or the second target source field is a source field with a complex logic processing, and the above three metadata circulation schemes cannot be adapted to the source field with the complex logic processing.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. The metadata circulation method is characterized by comprising the following steps:
acquiring at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata;
acquiring at least one field to be assigned in a target document;
establishing a mapping relation between each field to be assigned in the at least one field to be assigned and at least one source field;
for each field to be assigned in the at least one field to be assigned, executing:
determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation;
and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule.
2. The method according to claim 1, wherein the establishing a mapping relationship between each of the at least one to-be-assigned field and at least one source field comprises:
determining whether a source field with the same meaning as one of the fields to be assigned exists;
if a source field with the same meaning as one field to be assigned exists, establishing a first mapping relation between the field to be assigned and the source field;
determining at least one target source field corresponding to the current field to be assigned according to the current field to be assigned and the mapping relationship, wherein the determining comprises:
determining a first target source field corresponding to the field to be assigned according to the field to be assigned and the first mapping relation;
assigning all the first metadata in the at least one target source field to the current field to be assigned according to a set assignment rule, including:
determining whether the number of source metadata in the first target source field is one;
and if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
3. The method according to claim 2, wherein the establishing a mapping relationship between each of the at least one to-be-assigned field and at least one source field further comprises:
if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule;
if at least two source fields which accord with the correlation rule exist, determining a second target source field according to the at least two source fields and the correlation rule; wherein the source metadata carried by the second target source field is determined according to all the first metadata carried by the at least two source fields and the correlation rule;
determining whether the second target source field has the same meaning with one field to be assigned;
if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relation between the fields to be assigned and the second target source field;
determining at least one target source field corresponding to the current field to be assigned according to the current field to be assigned and the mapping relationship, wherein the determining comprises:
determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation;
assigning all the first metadata in the at least one target source field to the current field to be assigned according to a set assignment rule, including:
determining whether the number of source metadata in the second target source field is one;
and if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
4. The method according to claim 3, wherein after determining whether there are at least two source fields meeting the dependency rule according to the preset dependency rule, further comprising:
if at least two source fields meeting the correlation rule do not exist, calling a preset supplementary field database; the field database stores at least one supplementary field, and each supplementary field in the at least one supplementary field carries at least one supplementary metadata;
establishing a third mapping relation between the first field to be assigned and the supplementary field; the first field to be assigned is a field to be assigned with a different meaning from a source field or a field to be assigned with a different meaning from a second target source field;
for each first field to be assigned of the at least one field to be assigned, performing:
determining a target supplementary field corresponding to the current first field to be assigned according to the current field to be assigned and the three mapping relations;
and acquiring one supplementary metadata carried by the target supplementary field, and assigning the supplementary metadata to the current first field to be assigned.
5. The method according to claim 3 or 4, wherein all source metadata in the at least one target source field is assigned to the field to be currently assigned according to a set assignment rule, further comprising:
if the number of the source metadata in the first target source field is not one or if the number of the source metadata in the second target source field is not one, determining the current field to be assigned as a second field to be assigned, and calling a cloud function database; at least one cloud function is stored in the cloud function database;
establishing a fourth mapping relation between the second field to be assigned and the cloud function;
determining a target cloud function corresponding to the second field to be assigned according to the second field to be assigned and the fourth mapping relation;
and processing all source metadata carried by the first target source field by using the target cloud function, acquiring target source metadata, and assigning the target source metadata to the second field to be assigned.
6. A metadata streaming apparatus, comprising:
the first acquisition module is used for acquiring at least one source field in a source document; wherein each of the at least one source field carries at least one source metadata;
the second acquisition module is used for acquiring at least one field to be assigned in the target document;
the mapping establishing module is used for establishing a mapping relation between each field to be assigned in the at least one field to be assigned and at least one source field;
a loop execution module, configured to execute, for each to-be-assigned field of the at least one to-be-assigned field:
determining at least one target source field corresponding to the field to be assigned according to the field to be assigned and the mapping relation;
and assigning all source metadata in the at least one target source field to the current field to be assigned according to a set assignment rule.
7. The apparatus of claim 6, wherein the mapping module is configured to:
determining whether a source field with the same meaning as one of the fields to be assigned exists;
if a source field with the same meaning as one field to be assigned exists, establishing a first mapping relation between the field to be assigned and the source field;
the loop execution module is used for executing the following operations:
determining a first target source field corresponding to the field to be assigned according to the field to be assigned and the first mapping relation;
determining whether the number of source metadata in the first target source field is one;
and if the number of the source metadata in the first target source field is one, assigning the source metadata in the first target source field to the field to be currently assigned.
8. The apparatus of claim 7, wherein the mapping module is further configured to:
if one source field with the same meaning as one field to be assigned does not exist, determining whether at least two source fields meeting the relevance rule exist according to the preset relevance rule;
if at least two source fields which accord with the correlation rule exist, determining a second target source field according to the at least two source fields and the correlation rule; wherein the source metadata carried by the second target source field is determined according to all the first metadata carried by the at least two source fields and the correlation rule;
determining whether the second target source field has the same meaning with one field to be assigned;
if the meaning of the second target source field is the same as that of one of the fields to be assigned, establishing a second mapping relation between the fields to be assigned and the second target source field;
the loop execution module is further configured to perform the following operations:
determining a second target source field corresponding to the current field to be assigned according to the current field to be assigned and the second mapping relation;
determining whether the number of source metadata in the second target source field is one;
and if the number of the source metadata in the second target source field is one, assigning the source metadata in the second target source field to the field to be currently assigned.
9. A metadata streaming apparatus, comprising: at least one memory and at least one processor;
the at least one memory to store a machine readable program;
the at least one processor, configured to invoke the machine readable program, to perform the method of any of claims 1 to 5.
10. Computer readable medium, characterized in that it has stored thereon computer instructions which, when executed by a processor, cause the processor to carry out the method of any one of claims 1 to 5.
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