Siddhi App Management

Using DAS Python Client following operations can be undertaken on Siddhi App Management of WSO2 DAS 4.0.

• List all Siddhi Apps.
• Retrieve Siddhi App using name.
• Retrieve Status of Siddhi App.
• Save a new Siddhi App in DAS.
• Update a Siddhi App stored in DAS.
• Delete a Siddhi App stored in DAS.

Pre-requisites

1. Install DAS Python Client by following Installation Guide.
2. WSO2 DAS 4.0 must be already installed and running. If not, follow the steps below.

• Obtain WSO2 DAS 4.0-M6 binary distribution from https://github.com/wso2/product-das/releases/tag/v4.0.0-M6.
• Extract wso2das-4.0.0-SNAPSHOT.zip to a suitable location (say DAS_HOME).
• Navigate to DAS_Home/bin/ and run sh worker.sh.

List all Siddhi Apps

from DAS4PythonAPI.DAS4PythonClient import DAS4PythonClient

dasPythonClient = DAS4PythonClient('http://localhost:9090') # host URL of DAS
siddhiAppManagementClient = dasPythonClient.getSiddhiAppManagementClient()

print(siddhiAppManagementClient.listSiddhiApps()) # prints a list of siddhi apps

Retrieve Siddhi App using Name

from DAS4PythonAPI.DAS4PythonClient import DAS4PythonClient
dasPythonClient = DAS4PythonClient('http://localhost:9090') # host URL of DAS
siddhiAppManagementClient = dasPythonClient.getSiddhiAppManagementClient()

app = siddhiAppManagementClient.retrieveSiddhiApp("TestSiddhiApp")
print(app)

Retrieve Siddhi App Status

from DAS4PythonAPI.DAS4PythonClient import DAS4PythonClient
dasPythonClient = DAS4PythonClient('http://localhost:9090') # host URL of DAS
siddhiAppManagementClient = dasPythonClient.getSiddhiAppManagementClient()

status = siddhiAppManagementClient.retrieveStatusSiddhiApp("TestSiddhiApp")
print (status) # prints status of siddhi app (active)