BingTranslator

Bing Translator in c++ using JNI

Microsoft's Bing Translator is an API which can do a variety of functions:

1. Translate text between 2 langauges.
   
2. Detect the native language of given text.
3. Generating and playing a WAV of given text spoken in a chosen dialect
   

Since the Google Translate API is no more free, it makes sense in using the Bing Translate API.

The Bing Tranlate API is free for only 2,000,000 Characters/month. For further charges, refer https://datamarket.azure.com/dataset/1899a118-d202-492c-aa16-ba21c33c06cb

Since the API is by Microsoft, it is bound to be written in C#. There is also a PHP and Java version of the API.

However, I wanted to use the translator in C/C++ in my Linux system as a part of my Speech to Speech Translation project.
I was able to use the Bing translator using JNI in my C++ code and calling the functions of the Java API.
In my code, I have only covered the function to Translate text between 2 langauges.

##--------------------------------------------------## Requirements for using the code.

1. Java 1.5 or greater
2. A Windows Azure Marketplace Client ID and Client Secret

Follow first 2 steps of http://msdn.microsoft.com/en-us/library/hh454950.aspx

Store the Client ID and Client Secret.

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Source Code:

BingTranslator.h
BingTranslator.cc --> contains all the necessary C++ functions.
example.cc --> Shows a demo example.
folder com and jason --> The Java source code for Bing API
TranslateExample.class and TranslateExample.java --> Java functions used by my C++ code

I have included the JAVA APIs in my file. You can download them separately from https://code.google.com/p/microsoft-translator-java-api/downloads/list

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Before using the code->

Export the Java JVM libraries

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/jvm/default-java/jre/lib/amd64/:/usr/lib/jvm/default-java/jre/lib/amd64/server/;
Generally, this is the common path where the JRE libraries will be stored if you have multiple JRE versions. In case they are stored at a different location, do the appropriate changes.
In general cases, it will be stored in /usr/lib/jvm/java-version/....
e.g. /usr/lib/jvm/java-1.7.0-openjdk-amd64/...

If the above path in not present in your directory, you may need to install Java-open JDK using the following command:
sudo apt-get install openjdk-7-jdk

You can add this line to the end of the ~/.bashrc file as well.

Add the client ID and the client secret in the demoExample.cc file before compiling the file

Compiling the file

g++ -g demoExample.cc BingTranslator.cc -I /usr/lib/jvm/default-java/include/ -I /usr/lib/jvm/default-java/include/linux/ -L /usr/lib/jvm/default-java/jre/lib/amd64/ -L /usr/lib/jvm/default-java/jre/lib/amd64/server/ -ljvm -o demoExample

In place of example.cc, you can have your own C++ files.
Include the file "BingTranslator.h" in your source code and follow the syntax used in demoExample.cc.

Run the file

./demoExample

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