Extracting Values from a String¶ Purpose¶ Through this app, NamedEntity of given type "organization" is extracted from the provided string. Prerequisites¶ Download siddhi-gpl-execution-nlp-x.x.x.jar from the following link and copy the jar to /lib https://maven.wso2.org/nexus/content/repositories/wso2gpl/org/wso2/extension/siddhi/gpl/execution/nlp/siddhi-gpl-execution-nlp/ Save this sample. If there is no syntax error, the following messages would be shown on the console Siddhi App GplNLPFindNameEntityType.siddhi successfully deployed. Executing the Sample¶ Start the Siddhi application by clicking on 'Run' If the Siddhi application starts successfully, the following messages would be shown on the console GplNLPFindNameEntityType.siddhi - Started Successfully! Testing the Sample¶ You can publish data event to the file, through event simulator 1. Open event simulator by clicking on the second icon or press Ctrl+Shift+I. 2. In the Single Simulation tab of the panel, select values as follows: * Siddhi App Name : GplNLPFindNameEntityType * Stream Name : InputStream 3. Enter following string in the message and send ABC factory produces 20 donuts per day Viewing the Results¶ Messages similar to the following would be shown on the console. INFO {io.siddhi.core.query.processor.stream.LogStreamProcessor} - GplNLPFindNameEntityType: StreamEvent{ timestamp=1513573692406, beforeWindowData=null, onAfterWindowData=null, outputData=[ABC factory produces 20 donuts per day., ABC], type=CURRENT, next=null} ABC has been recognized as an organization. Note¶ Stop this Siddhi application, once you are done with the execution @App:name('GplNLPFindNameEntityType') @App:Description("NamedEntity of given type 'organization' is extracted from the provided string") define stream InputStream (message string); @sink(type='log') define stream outputStream (message string, match string); from InputStream#nlp:findNameEntityType( 'ORGANIZATION', true, message ) select * insert into FindNameEntityTypeResult; from FindNameEntityTypeResult select * insert into outputStream;