英文:
Unmarshalling JSON content from a a file using GO and generate .go files using the GO template package
问题
我对读取和解析 JSON 格式的模式文件很感兴趣。我有一些在 .GO 文件中定义的 JSON 结构，我想为模式中的每种结构生成相应的 .go 文件，并使用模板包（http://golang.org/pkg/text/template/）生成这些文件中执行 CRUD 操作的代码。
以下是模式文件中的一个结构示例：
{
"type": "collection",
"resourceType": "schema",
"links": {
"self": ".../v1/schemas"
},
"createTypes": {},
"actions": {},
"data": [
{
"id": "schema",
"type": "schema",
"links": {
"self": "/schemas/schema",
"collection": ".../schemas"
}
},
...
]
}
请问有人可以帮助我使用 GO 模板包为不同的结构生成这些 CRUD 操作的代码吗？
英文:
I am interested in reading a schemas(json formatted text file) and unmarshall it as schemas (for which i have some JSON structures defined in a .GO file) and For each type of structure in the Schema, I want to generate a corresponding .go file which has the code for performing CRUD operations using the template package (http://golang.org/pkg/text/template/) to generate these files.
Example of a structure in a schema file -
{
type struct XYZ {
Type string `json:"type,omitempty"`
ResourceType string `json:"resourceType,omitempty"`
Links map[string]string `json:"links,omitempty"`
}
The text file has a JSON structured data which is something of this form -
{
"type": "collection",
"resourceType": "schema",
"links": {
"self": "…/v1/schemas",
},
"createTypes": { },
"actions": { },
"data": [ 86 items
{
"id": "schema",
"type": "schema",
"links": {
"self": "/schemas/schema",
"collection": "…/schemas",
},
...
}
}
Could somebody help me how could i possibly generate the code for these CRUD operations for different structs using the GO template package.
答案1
得分: 2
你可能会发现go generate很有用。
> 提案：go generate
>
> 提议为Go 1.4 提供新的go工具子命令。请参阅设计文档并在此线程中发表评论。
>
> http://golang.org/s/go1.4-generate
>
> -rob
> Go generate：一个提案
>
> 介绍
>
> go build命令自动化构建Go程序，但有时需要进行预处理，而go build不支持。激励示例包括：
>
> * yacc：从yacc语法（.y）文件生成.go文件
> * protobufs：从协议缓冲区定义（.proto）文件生成.pb.go文件
> * Unicode：从UnicodeData.txt生成表格
> * HTML：将.html文件嵌入到Go源代码中
> * bindata：将二进制文件（如JPEG）转换为Go源代码中的字节数组
>
>
> 还可以想象其他处理步骤：
>
> * 字符串方法：为用作枚举常量的类型生成String()字符串方法
> * 宏：根据通用包生成定制实现，例如从ints生成sort.Ints
>
> 该提案提供了一种平滑自动化这种处理的设计。
英文:
You might find go generate useful.
> proposal: go generate
>
> New go tool subcommand proposed for Go
> 1.4. Please see the design document and comment in this thread.
>
> http://golang.org/s/go1.4-generate
>
> -rob
> Go generate: A Proposal
>
> Introduction
>
> The go build command automates the construction of Go programs but
> sometimes preliminary processing is required, processing that go build
> does not support. Motivating examples include:
>
> * yacc: generating .go files from yacc grammar (.y) files
> * protobufs: generating .pb.go files from protocol buffer definition (.proto) files
> * Unicode: generating tables from UnicodeData.txt
> * HTML: embedding .html files into Go source code
> * bindata: translating binary files such as JPEGs into byte arrays in Go source
>
>
> There are other processing steps one can imagine:
>
> * string methods: generating String() string methods for types used as enumerated constants
> * macros: generating customized implementations given generalized packages, such as sort.Ints from ints
>
> This proposal offers a design for smooth automation of such
> processing.
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