expression

Documentation

Overview

Copyright 2018 StreamSets Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

• Constants
• type ExpressionProcessor
  • func (f *ExpressionProcessor) Init(stageContext api.StageContext) []validation.Issue
  • func (f *ExpressionProcessor) Process(batch api.Batch, batchMaker api.BatchMaker) error
• type FieldAttributeConfig
• type FieldValueConfig
• type HeaderAttributeConfig

Constants

const (
	LIBRARY    = "streamsets-datacollector-basic-lib"
	STAGE_NAME = "com_streamsets_pipeline_stage_processor_expression_ExpressionDProcessor"
	EXPRESSION = "expression"
)

Types

type ExpressionProcessor

type ExpressionProcessor struct {
	*common.BaseStage
	ExpressionProcessorConfigs []FieldValueConfig      `ConfigDef:"type=MODEL,evaluation=EXPLICIT" ListBeanModel:"name=expressionProcessorConfigs"`
	HeaderAttributeConfigs     []HeaderAttributeConfig `ConfigDef:"type=MODEL,evaluation=EXPLICIT" ListBeanModel:"name=headerAttributeConfigs"`
	FieldAttributeConfigs      []FieldAttributeConfig  `ConfigDef:"type=MODEL,evaluation=EXPLICIT" ListBeanModel:"name=fieldAttributeConfigs"`
}

func (*ExpressionProcessor) Init

func (f *ExpressionProcessor) Init(stageContext api.StageContext) []validation.Issue

func (*ExpressionProcessor) Process

func (f *ExpressionProcessor) Process(batch api.Batch, batchMaker api.BatchMaker) error

type FieldAttributeConfig

type FieldAttributeConfig struct {
	FieldToSet     string `ConfigDef:"type=STRING,required=true"`
	AttributeToSet string `ConfigDef:"type=STRING,required=true"`
	Expression     string `ConfigDef:"type=STRING,evaluation=EXPLICIT,required=true"`
}

type FieldValueConfig

type FieldValueConfig struct {
	FieldToSet string `ConfigDef:"type=STRING,required=true"`
	Expression string `ConfigDef:"type=STRING,evaluation=EXPLICIT,required=true"`
}

type HeaderAttributeConfig

type HeaderAttributeConfig struct {
	AttributeToSet string `ConfigDef:"type=STRING,required=true"`
	Expression     string `ConfigDef:"type=STRING,evaluation=EXPLICIT,required=true"`
}