ESP Custom Adaptor

[DorukK]

Hello Experts,

Our customer is using Google Pub/Sub and an important part of our project is to read real-time data therefore we are using SAS Event Stream Processing.
However ESP doesn't have a native connector for Google Pub/Sub and it is required to create a custom connector for the Google Pub/Sub.
Is there any documentation/example for creating a custom connector? Anybody implemented such a project with a Google Pub/Sub custom adaptor for ESP?