co.cask.hydrator.plugin

Class JSONFormatter

java.lang.Object

co.cask.cdap.etl.api.Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

co.cask.hydrator.plugin.JSONFormatter

All Implemented Interfaces:

co.cask.cdap.etl.api.Destroyable, co.cask.cdap.etl.api.PipelineConfigurable, co.cask.cdap.etl.api.StageLifecycle<co.cask.cdap.etl.api.TransformContext>, co.cask.cdap.etl.api.Transformation<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

public final class JSONFormatter
extends co.cask.cdap.etl.api.Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

JSON Formatter formats StructuredRecord into JSON Object.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JSONFormatter.Config JSON Writer Plugin Configuration.

Field Summary

Fields inherited from class co.cask.cdap.etl.api.Transform

PLUGIN_TYPE

Constructor Summary

Constructors

Constructor and Description
JSONFormatter(JSONFormatter.Config config)

Method Summary

Methods

Modifier and Type	Method and Description
void	configurePipeline(co.cask.cdap.etl.api.PipelineConfigurer pipelineConfigurer)
void	initialize(co.cask.cdap.etl.api.TransformContext context) Initializes the plugin by parsing the schema JSON.
void	transform(co.cask.cdap.api.data.format.StructuredRecord input, co.cask.cdap.etl.api.Emitter<co.cask.cdap.api.data.format.StructuredRecord> emitter)

Methods inherited from class co.cask.cdap.etl.api.Transform

destroy, getContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JSONFormatter

public JSONFormatter(JSONFormatter.Config config)

Method Detail

initialize

public void initialize(co.cask.cdap.etl.api.TransformContext context)
                throws Exception

Initializes the plugin by parsing the schema JSON.

Specified by:

initialize in interface co.cask.cdap.etl.api.StageLifecycle<co.cask.cdap.etl.api.TransformContext>

Overrides:

initialize in class co.cask.cdap.etl.api.Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

Parameters:

context - Context of transformation.

Throws:

Exception - If Schema JSON is invalid.

configurePipeline

public void configurePipeline(co.cask.cdap.etl.api.PipelineConfigurer pipelineConfigurer)
                       throws IllegalArgumentException

Specified by:

configurePipeline in interface co.cask.cdap.etl.api.PipelineConfigurable

Overrides:

configurePipeline in class co.cask.cdap.etl.api.Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

Throws:

IllegalArgumentException

transform

public void transform(co.cask.cdap.api.data.format.StructuredRecord input,
             co.cask.cdap.etl.api.Emitter<co.cask.cdap.api.data.format.StructuredRecord> emitter)
               throws Exception

Throws:

Exception