Processor (elasticsearch-extend 3.2 API)

All Known Subinterfaces:

WrappingProcessor

All Known Implementing Classes:

AbstractProcessor, CompoundProcessor, ConditionalProcessor, PipelineProcessor, TrackingResultProcessor
```
public interface Processor
```
A processor implementation may modify the data belonging to a document. Whether changes are made and what exactly is modified is up to the implementation. Processors may get called concurrently and thus need to be thread-safe.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`Processor.Factory`	A factory that knows how to construct a processor based on a map of maps.
`static class`	`Processor.Parameters`	Infrastructure class that holds services that can be used by processor factories to create processor instances and that gets passed around to all `IngestPlugin`s.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`IngestDocument`	`execute(IngestDocument ingestDocument)`	Introspect and potentially modify the incoming data.
`default void`	`execute(IngestDocument ingestDocument, BiConsumer<IngestDocument,Exception> handler)`	Introspect and potentially modify the incoming data.
`String`	`getTag()`	Gets the tag of a processor.
`String`	`getType()`	Gets the type of a processor

- Method Detail
  - execute
```
default void execute(IngestDocument ingestDocument,
                     BiConsumer<IngestDocument,Exception> handler)
```
    Introspect and potentially modify the incoming data. Expert method: only override this method if a processor implementation needs to make an asynchronous call, otherwise just overwrite execute(IngestDocument).
  - execute
```
IngestDocument execute(IngestDocument ingestDocument)
                throws Exception
```
    Introspect and potentially modify the incoming data.
    
    Returns:
    
    If null is returned then the current document will be dropped and not be indexed, otherwise this document will be kept and indexed
    
    Throws:
    
    Exception
  - getType
```
String getType()
```
    Gets the type of a processor
  - getTag
```
String getTag()
```
    Gets the tag of a processor.