This directory contains example code that uses Protocol Buffers to manage an address book. Two programs are provided, each with three different implementations, one written in each of C++, Java, and Python. The add_person example adds a new person to an address book, prompting the user to input the person's information. The list_people example lists people already in the address book. The examples use the exact same format in all three languages, so you can, for example, use add_person_java to create an address book and then use list_people_python to read it. You must install the protobuf package before you can build these. To build all the examples (on a unix-like system), simply run "make". This creates the following executable files in the current directory: add_person_cpp list_people_cpp add_person_java list_people_java add_person_python list_people_python If you only want to compile examples in one language, use "make cpp"*, "make java", or "make python". All of these programs simply take an address book file as their parameter. The add_person programs will create the file if it doesn't already exist. These examples are part of the Protocol Buffers tutorial, located at: https://developers.google.com/protocol-buffers/docs/tutorials * Note that on some platforms you may have to edit the Makefile and remove "-lpthread" from the linker commands (perhaps replacing it with something else). We didn't do this automatically because we wanted to keep the example simple. ## Java ## protobuf-java-*.jar can be generated by: cd ../java mvn package and will be used by "make java" ## Go ## The Go example requires a plugin to the protocol buffer compiler, so it is not build with all the other examples. See: https://github.com/golang/protobuf for more information about Go protocol buffer support. First, install the Protocol Buffers compiler (protoc). Then, install the Go Protocol Buffers plugin ($GOPATH/bin must be in your $PATH for protoc to find it): go get github.com/golang/protobuf/protoc-gen-go Build the Go samples in this directory with "make go". This creates the following executable files in the current directory: add_person_go list_people_go To run the example: ./add_person_go addressbook.data to add a person to the protocol buffer encoded file addressbook.data. The file is created if it does not exist. To view the data, run: ./list_people_go addressbook.data Observe that the C++, Python, and Java examples in this directory run in a similar way and can view/modify files created by the Go example and vice versa.