Providence : Providence CLI Tool : Data Converter

The data converter pvd is a small program that can read a thrift IDL, and a binary (or non-binary) serialized data file that follows that IDL structure, and the output the result in some form of readable (or other binary) data format. As for example:

Given the thrift IDL in thrift/test.thrift:

struct MyData {
  1: string text
  2: i32 sequence
  3: list<string> tags
}

And a binary file with a set of data entries in test.MyData format. We could do something like this:

cat test.data | pvd -I thrift/ test.MyData

And should make the output:

{
  "text": "not a test at all",
  "sequence": 144
}
{
  "text": "test 2",
  "tags": [
    "first",
    "second"
  ]
}

Input and output can be specified to point directly to files (no shell piping needed), and the input and output serialization format can be specified too.

pvd -i fast_binary,file:test.data -o pretty -I thrift/ test.MyData

Which should read the data file serialized with the FastBinarySerializer format and print it out with the simple “pretty printer” format.

Providence Customizable Serialization with Generated Models

Providence CLI Tool : Data Converter