Package org.apache.nifi.processors.standard

Class ExtractRecordSchema

java.lang.Object
org.apache.nifi.components.AbstractConfigurableComponent
org.apache.nifi.processor.AbstractSessionFactoryProcessor
org.apache.nifi.processor.AbstractProcessor
org.apache.nifi.processors.standard.ExtractRecordSchema
All Implemented Interfaces:
org.apache.nifi.components.ConfigurableComponent, org.apache.nifi.processor.Processor
@SupportsBatching @InputRequirement(INPUT_REQUIRED) @SideEffectFree @Tags({"record","generic","schema","json","csv","avro","freeform","text","xml"}) @WritesAttribute(attribute="record.error.message",description="This attribute provides on failure the error message encountered by the Reader.") @WritesAttribute(attribute="avro.schema",description="This attribute provides the schema extracted from the input FlowFile using the provided RecordReader.") @CapabilityDescription("Extracts the record schema from the FlowFile using the supplied Record Reader and writes it to the `avro.schema` attribute.") public class ExtractRecordSchema extends org.apache.nifi.processor.AbstractProcessor

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private com.github.benmanes.caffeine.cache.LoadingCache<RecordSchema,String>
    avroSchemaTextCache
     
    private static final List<org.apache.nifi.components.PropertyDescriptor>
    PROPERTY_DESCRIPTORS
     
    (package private) static final org.apache.nifi.components.PropertyDescriptor
    RECORD_READER
     
    (package private) static final org.apache.nifi.processor.Relationship
    REL_FAILURE
     
    (package private) static final org.apache.nifi.processor.Relationship
    REL_SUCCESS
     
    private static final Set<org.apache.nifi.processor.Relationship>
    RELATIONSHIPS
     
    static final String
    SCHEMA_ATTRIBUTE_NAME
     
    (package private) static final org.apache.nifi.components.PropertyDescriptor
    SCHEMA_CACHE_SIZE
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    ExtractRecordSchema()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    Set<org.apache.nifi.processor.Relationship>
    getRelationships()
     
    protected List<org.apache.nifi.components.PropertyDescriptor>
    getSupportedPropertyDescriptors()
     
    void
    onTrigger(org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session)
     
    void
    setup(org.apache.nifi.processor.ProcessContext context)
     

    Methods inherited from class org.apache.nifi.processor.AbstractProcessor

    onTrigger

    Methods inherited from class org.apache.nifi.processor.AbstractSessionFactoryProcessor

    getControllerServiceLookup, getIdentifier, getLogger, getNodeTypeProvider, init, initialize, isConfigurationRestored, isScheduled, toString, updateConfiguredRestoredTrue, updateScheduledFalse, updateScheduledTrue

    Methods inherited from class org.apache.nifi.components.AbstractConfigurableComponent

    customValidate, equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, hashCode, onPropertyModified, validate

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface org.apache.nifi.components.ConfigurableComponent

    getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

    Methods inherited from interface org.apache.nifi.processor.Processor

    isStateful, migrateProperties, migrateRelationships

  • Field Details

    • SCHEMA_ATTRIBUTE_NAME

      public static final String SCHEMA_ATTRIBUTE_NAME
      See Also:

    • RECORD_READER

      static final org.apache.nifi.components.PropertyDescriptor RECORD_READER

    • SCHEMA_CACHE_SIZE

      static final org.apache.nifi.components.PropertyDescriptor SCHEMA_CACHE_SIZE

    • PROPERTY_DESCRIPTORS

      private static final List<org.apache.nifi.components.PropertyDescriptor> PROPERTY_DESCRIPTORS

    • REL_SUCCESS

      static final org.apache.nifi.processor.Relationship REL_SUCCESS

    • REL_FAILURE

      static final org.apache.nifi.processor.Relationship REL_FAILURE

    • RELATIONSHIPS

      private static final Set<org.apache.nifi.processor.Relationship> RELATIONSHIPS

    • avroSchemaTextCache

      private com.github.benmanes.caffeine.cache.LoadingCache<RecordSchema,String> avroSchemaTextCache

  • Constructor Details

    • ExtractRecordSchema

      public ExtractRecordSchema()

  • Method Details

    • getSupportedPropertyDescriptors

      protected List<org.apache.nifi.components.PropertyDescriptor> getSupportedPropertyDescriptors()
      Overrides:
      getSupportedPropertyDescriptors in class org.apache.nifi.components.AbstractConfigurableComponent

    • getRelationships

      public Set<org.apache.nifi.processor.Relationship> getRelationships()
      Specified by:
      getRelationships in interface org.apache.nifi.processor.Processor
      Overrides:
      getRelationships in class org.apache.nifi.processor.AbstractSessionFactoryProcessor

    • setup

      @OnScheduled public void setup(org.apache.nifi.processor.ProcessContext context)

    • onTrigger

      public void onTrigger(org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session) throws org.apache.nifi.processor.exception.ProcessException
      Specified by:
      onTrigger in class org.apache.nifi.processor.AbstractProcessor
      Throws:
      org.apache.nifi.processor.exception.ProcessException