从现有 Java 对象或 xsd 生成 .proto 文件
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Generating .proto file from existing Java objects or xsd
提问by ConfusedProtocolBuffer
Does anyone know of any tools that will generate a .proto file? Either from an existing xsd or from existing Java objects?
有谁知道任何可以生成 .proto 文件的工具？来自现有的 xsd 还是来自现有的 Java 对象？
I am using Apache CXFto make a web service call. The returned object has been auto generated from an xsd.
我正在使用Apache CXF进行网络服务调用。返回的对象是从 xsd 自动生成的。
ok so I now want to pass this data using protocol buffers to another system. The object model is very complex and changes regularly - i.e. I get a new xsd every time the object model has changed. I would like to be able to auto generate a .proto file so that I can send data using google protocol buffers.
好的，所以我现在想使用协议缓冲区将此数据传递到另一个系统。对象模型非常复杂并且会定期更改 - 即每次对象模型更改时我都会得到一个新的 xsd。我希望能够自动生成一个 .proto 文件，以便我可以使用谷歌协议缓冲区发送数据。
I have been looking everywhere but have come stuck.
我到处找，但都卡住了。
I am happy to
我很高兴
i.) generate .proto file from the xsd or ii.) generate .proto file from the Java objects (which have been generated from the xsd)
i.) 从 xsd 生成 .proto 文件或 ii.) 从 Java 对象（已从 xsd 生成）生成 .proto 文件
I cannot find any way of doing this already short of writing something myself... Your help much appreciated
我找不到任何方法来做这件事，因为我自己写了一些东西......非常感谢你的帮助
回答by Aravind Yarram
I believe that proto-stuffwill be helpful to you to some extent. I am not sure it generates the .proto file for you but protostuff-runtimeautomatically enables your existing pojos to ser/deser to various formats.
我相信proto-stuff会在一定程度上对你有所帮助。我不确定它会为您生成 .proto 文件，但protostuff-runtime 会自动使您现有的pojo能够将 ser/deser 转换为各种格式。
回答by Joe Wood
The Tranchis utility converts .XSD files to both .Proto and Thrift.
Tranchis 实用程序将 .XSD 文件转换为 .Proto 和 Thrift。
https://github.com/tranchis/xsd2thrift
https://github.com/tranchis/xsd2thrift
It works quite well for converting basic schema types from XML Schema.
它非常适合从 XML 模式转换基本模式类型。
回答by Alex
Try protostuff-runtime-protoproject from Github.
If you have protostuff RuntimeSchema, you can convert it to the .proto file by this code:
尝试protostuff-runtime-proto来自 Github 的项目。如果您有 protostuff RuntimeSchema，则可以通过以下代码将其转换为 .proto 文件：
System.out.println(Generators.newProtoGenerator(schema).generate());
