Introduction
This sample demonstrates the use of the Cassandra data source functionality in WSO2 DSS, in order to connect to a Cassandra cluster.
Building the sample
The sample data service CassandraSample should be deployed using the instructions in Samples Setup section.
Prerequisites
A Cassandra server of version 1.2.x or version 2.0 should be already running in the default port. Cassandra version 2.0 is recommended, where only the native batch requests are supported in this version.
Running the sample
The sample can be run using any SOAP client such as the Tryit tool that comes bundled with WSO2 DSS.
Service description
The service contains the following operations:
- "createKS": This creates the Cassandra keyspace required for the sample. This must be called once before running other operations.
- "createTable": This creates a Cassandra CQL3 table required for the sample. This must be called once after "createKS" is called.
- "addUser": This operation takes in user details and adds it to Cassandra. Here "ID" is the primary key and it takes in an UUID as the value.
- "addUser_batch_req": This is the corresponding batch request of "addUser", where it takes in a batch of "addUser" data entries and adds it as a single batch operation.
- "getUserById": This operation returns the user information when you provide the ID of a specific user.
- "getUsers": This operation returns information of all the users stored in the Cassandra store.