Protostuff is the stuff around protobuf.

Features

Speed and Efficiency very fast and efficient ser/deser Simplicity and Code Size generated code = pojos with cached schemas. Small Serialized Size and Compatibility the small serialized size is the strongest point of protobuf along with forward and backward compatibility. Lite Runtime 43kb core serialization library (protostuff-core) Unobtrusive and Flexibile designed to work with existing objects. All that's needed is a schema, which could be: hand-written code-generated generated at runtime via protostuff-runtime the schema is flexible enough that it can be used to efficiently ser/deser the objects to various formats (native, json, xml, atom, etc)

Goal

automate/auto-generate components Pojos, GWT json overlays, Data Access Objects, webservice REST/RPC endpoints/services, GUIs rapid hassle-free development a single change in your .proto will propagate to your code-generated components. Todo code generator for Data Access Objects code generator for REST/RPC endpoints/services code generator for GUIs xml/atom format

If anyone is interested in joining the project, join the discussion group and share your thoughts!

Its open for a lot of ideas/implementations.

The protostuff modules:protostuff-core

Very minimal 43kb library for protobuf serialization. The generated code (simple java beans/pojos) depends on this library.

protostuff-runtime

Serializes your existing pojos using protobuf serialization. See ProtostuffRuntime Leverage the speed, size and efficiency of protobuf ser/deser!

protostuff-json

Allows the pojos(existing or generated) to be serialized to json. Uses low-level jackson-core-asl-1.2.1 for json ser/deser. protostuff-parser A lexer/parser for .proto files using ANTLR v3 Used by protostuff-compiler protostuff-compiler A pure java compiler that can be used to compile the .proto files to any output. java -jar protostuff-compiler-jarjar.jar modules.properties modules.properties

modules = foo
   foo.source = path/to/your/foo.proto
   #java_bean, gwt_overlay
   foo.output = java_bean
   foo.outputDir = generated
   foo.options = key:value,generate_field_mapSee the compiler options.

Currently the implemented compilers are: java_bean gwt_overlay protostuff-maven-plugin configuration, compilation and code generation of .proto files via maven2 sample config

com.dyuproject.protostuff
        protostuff-maven-plugin
        ${protostuff.version}

src/main/resources/media.proto
              src/main/java
              java_bean
              UTF-8

generate_field_map

separate_schema

generate-sources
            generate-sources

compile

protostuff-repo
      protostuff-repo      
      http://protostuff.googlecode.com/svn/repos/maven2

Utilities for the generated java code by C++ protoc protostuff-model

Metadata for the code generated by the c++ compiler protoc. Used by protostuff-codegen to generate code. protostuff-codegen Generates extra code from the protoc-compiled code using protostuff-model. Limitations: no nested messages only nested enums the imports need to be mapped by the developer via code generator options. Currently it generates: json ser/deser code gwt overlays protostuff-model-json The generated json ser/deser code depends on this library. Uses jackson-core-asl-1.2.1

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