File/Hadoop Event XML Input and Output Adapter
The File/Hadoop Event XML Input adapter reads XML list text files from a local file system or Hadoop Distributed File System (HDFS), transforms the data to ESP format, and publishes it to ESP streams. The File/Hadoop Event XML Output adapter reads rows from Event Stream Processor, transforms this data to XML list format, and writes and saves this data into XML list files on a local file system or HDFS.
Commands specified in the cnxml file for this adapter cannot contain the following strings: "mv", "rm", or "del".
These adapters can run in managed or unmanaged mode.
Managed external adapters:
- Are started and stopped by the ESP server with ESP projects.
- Have a cnxml adapter configuration file that is configured within SAP Event Stream Processor Studio.
- Are referenced in a CCL ATTACH ADAPTER statement.
Unmanaged external adapters:
- Start and stop independently of the ESP server and ESP projects.
- Are configured independently.
- Are not referenced in a CCL ATTACH ADAPTER statement.