--- /dev/null
+#!/bin/bash
+
+#####################################################################################################
+#Instructions on generating the protocol buffer Java source files
+#
+#These instructions are developers who are planning to generate the protocolbuffer java source files.
+#
+#1. We are using protocol buffer version 2.5.0 - you need to install the exact same version on your box.
+#The download link is https://code.google.com/p/protobuf/downloads/list. Download .tar/zip based on
+#your OS.
+#
+#2. Once downloaded the tar/zip and extracted follow the README instructions to compile protoc on your
+#machine
+#
+#3. Create your .proto (IDL) file in resources folder. Give appropriate package name so that the source
+# get generation in proper packages. For more information check
+# https://developers.google.com/protocol-buffers/docs/javatutorial
+#
+# For detailed information https://developers.google.com/protocol-buffers/docs/reference/java-generated
+#
+#4. To generate the java source files execute in sal-protocolbuffer-encoding execute ./run.sh i.e. this script
+# or run command
+# protoc --proto_path=src/main/resources --java_out=src/main/java src/main/resources/*.proto
+#
+#5. Run mvn clean install & build the .jar
+#
+#6 !!!WARNING!!!! never edit the source files generated
+#
+#7. !!!NOTE!!! if you are planning to add new .proto file option java_package should begin with
+# org.opendaylight.controller.protobuff.messages to properly exclude from sonar.
+########################################################################################################
+
+protoc --proto_path=src/main/resources --java_out=src/main/java src/main/resources/*.proto
+
+protoc --proto_path=src/main/resources --proto_path=src/test/resources --java_out=src/test/java src/test/resources/*.proto
+
+echo "Done generating Java source files."
+
+#to remove trailing spaces in the code files
+find src/main/java -type f -name '*.java' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
+
+find src/test/java -type f -name '*.java' -exec sed --in-place 's/[[:space:]]\+$//' {} \+