streamsets Processors 说明

Processors 表示对于一种数据操作处理，在pipeline中可以应用多个Processors，
同时根据不同的执行模式，可以分为独立模式的，集群模式、边缘模式（agent），以及
帮助测试的测试Processors

独立pipelineonly

• Record Deduplicator - Removes duplicate records.

独立&&集群pipeline

• Aggregator - Performs aggregations and displays the results in Monitor mode and writes the results to events when enabled. This processor does not update the records being evaluated.
• Base64 Field Decoder - Decodes Base64 encoded data to binary data.
• Base64 Field Encoder - Encodes binary data using Base64.
• Data Parser - Parses NetFlow or syslog data embedded in a field.
• Delay - Delays passing a batch to the rest of the pipeline.
• Expression Evaluator - Performs calculations on data. Can also add or modify record header attributes.
• Field Flattener - Flattens nested fields.
• Field Hasher - Uses an algorithm to encode sensitive data.
• Field Masker - Masks sensitive string data.
• Field Merger - Merges fields in complex lists or maps.
• Field Order - Orders fields in a map or list-map root field type and outputs the fields into a list-map or list root field type.
• Field Pivoter - Pivots data in a list, map, or list-map field and creates a record for each item in the field.
• Field Remover - Removes fields from a record.
• Field Renamer - Renames fields in a record.
• Field Replacer - Replaces field values.
• Field Splitter - Splits the string values in a field into different fields.
• Field Type Converter - Converts the data types of fields.
• Field Zip - Merges list data from two fields.
• Geo IP- Returns geolocation and IP intelligence information for a specified IP address.
• Groovy Evaluator - Processes records based on custom Groovy code.
• HBase Lookup - Performs key-value lookups in HBase to enrich records with data.
• Hive Metadata - Works with the Hive Metastore destination as part of the Drift Synchronization Solution for Hive.
• HTTP Client - The HTTP Client processor sends requests to an HTTP resource URL and writes the results to a field.
• JavaScript Evaluator - Processes records based on custom JavaScript code.
• JDBC Lookup - Performs lookups in a database table through a JDBC connection.
• JDBC Tee - Writes data to a database table through a JDBC connection, and enriches records with data from generated database columns.
• JSON Generator - Serializes data from a field to a JSON-encoded string.
• JSON Parser - Parses a JSON object embedded in a string field.
• Jython Evaluator - Processes records based on custom Jython code.
• Kudu Lookup - Performs lookups in Kudu to enrich records with data.
• Log Parser - Parses log data in a field based on the specified log format.
• PostgreSQL Metadata - Tracks structural changes in source data then creates and alters PostgreSQL tables as part of the Drift Synchronization Solution for PostgreSQL.
• Redis Lookup - Performs key-value lookups in Redis to enrich records with data.
• Salesforce Lookup - Performs lookups in Salesforce to enrich records with data.
• Schema Generator - Generates a schema for each record and writes the schema to a record header attribute.
• Spark Evaluator - Processes data based on a custom Spark application.
• SQL Parser - Parses SQL queries in a string field.
• Static Lookup - Performs key-value lookups in local memory.
• Stream Selector - Routes data to different streams based on conditions.
• Value Replacer (Deprecated) - Replaces existing nulls or specified values with constants or nulls.
• Whole File Transformer - Transforms Avro files to Parquet.
• XML Flattener - Flattens XML data in a string field.
• XML Parser - Parses XML data in a string field.

边缘pipeline

• Expression Evaluator - Performs calculations on data. Can also add or modify record header attributes.
• Field Remover - Removes fields from a record.
• JavaScript Evaluator - Processes records based on custom JavaScript code.
• Stream Selector - Routes data to different streams based on conditions.

测试Processors

• Dev Identity
• Dev Random Error
• Dev Record Creator

参考资料

https://streamsets.com/documentation/datacollector/latest/help/datacollector/UserGuide/Processors/Processors_overview.html#concept_hpr_twm_jq