Trade Reporting Engine

How to run

./gradlew bootRun

In another terminal:

curl -X POST http://localhost:8080/trades -H "Content-Type: application/json" -d '{"filenames":["event0.xml", "event1.xml", "event2.xml"]}'
curl -X GET http://localhost:8080/trades | jq

or if jq is not installed:

curl -X GET http://localhost:8080/trades

Design

• filter can be easily extended by adding queries with Specifications
• H2 is used for DB layer, it is in memory DB so when the service stop all data will be lost. It can be replaced by any other Databases.

Note

• The service is reading XML files from eventXmlFilesPath which defined in application.properties

Further Improvement

• The service is using blocking calls, would be better to use Reactive or CompletableFuture to get data from Repository asynchronously.
• Use multi-thread to parse XML files in parallel.
• Add tests for XmlParser, e.g. malformed XMLs.
• Use ANTLR to make the filter to support SQL-like queries from the endpoint.