com.northconcepts.datapipeline.avro

Class AvroReader

java.lang.Object

com.northconcepts.datapipeline.core.DataObject

com.northconcepts.datapipeline.core.Endpoint

com.northconcepts.datapipeline.core.DataEndpoint

com.northconcepts.datapipeline.core.DataReader

com.northconcepts.datapipeline.internal.lang.IntegrationReader

com.northconcepts.datapipeline.avro.AvroReader

public class AvroReader
extends IntegrationReader

Read an Apache Avro file and convert the contents into Records .

Nested Class Summary

Nested classes/interfaces inherited from class com.northconcepts.datapipeline.core.DataEndpoint

DataEndpoint.State

Field Summary

Fields inherited from class com.northconcepts.datapipeline.core.DataReader

fieldLineage, recordLineage

Fields inherited from class com.northconcepts.datapipeline.core.DataEndpoint

lastRecord, PRODUCT, PRODUCT_VERSION, VENDOR, XML_INPUT_FACTORY_KEY

Fields inherited from class com.northconcepts.datapipeline.core.Endpoint

BUFFER_SIZE, captureElapsedTime, DEFAULT_READ_BUFFER_SIZE

Fields inherited from class com.northconcepts.datapipeline.core.DataObject

id, log, name, TIMESTAMP_FORMAT

Constructor Summary

Constructors

Constructor and Description
AvroReader(File file) Read an Avro file.
AvroReader(InputStream inputStream) Read a stream of Avro data.

Method Summary

Modifier and Type	Method and Description
DataException	addExceptionProperties(DataException exception) Adds this endpoint's current state to a DataException.
void	close() Indicates that this endpoint has finished reading or writing.
int	getInvalidRecordCount() Returns the total number of broken Avro records this reader encountered.
int	getMaxInvalidRecords() Indicates the number of broken Avro records to skip before this reader should fail (default 1000).
Schema	getSchema()
void	open() Makes this endpoint ready for reading or writing.
protected Record	readImpl() Overridden by subclasses to read the next record from this DataReader.
AvroReader	setMaxInvalidRecords(int maxInvalidRecords) Indicates the number of broken Avro records to skip before this reader should fail (default 1000).

Methods inherited from class com.northconcepts.datapipeline.core.DataReader

addLineage, available, getBufferSize, getNestedEndpoint, getNestedReader, getReader, getRootEndpoint, getRootReader, isExhausted, isLineageSupported, isSaveLineage, peek, pop, push, read, setSaveLineage, skip

Methods inherited from class com.northconcepts.datapipeline.core.DataEndpoint

decrementRecordCount, enableJmx, getLastRecord, getRecordCount, getRecordCountAsBigInteger, getRecordCountAsString, incrementRecordCount, isRecordCountBigInteger, resetRecordCount, toString

Methods inherited from class com.northconcepts.datapipeline.core.Endpoint

addElapsedtime, assertClosed, assertNotOpened, assertOpened, finalize, getClosedOn, getDescription, getElapsedTime, getElapsedTimeAsString, getOpenedOn, getOpenElapsedTime, getOpenElapsedTimeAsString, getSelfTime, getSelfTimeAsString, getState, isCaptureElapsedTime, isClosed, isOpen, setCaptureElapsedTime, setDescription

Methods inherited from class com.northconcepts.datapipeline.core.DataObject

exception, exception, exception, getId, getName, resetID

Methods inherited from class java.lang.Object

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

Constructor Detail

AvroReader

public AvroReader(File file)

Read an Avro file.

Parameters:

file - the file to be read

AvroReader

public AvroReader(InputStream inputStream)

Read a stream of Avro data.

Parameters:

inputStream -

Method Detail

open

public void open()
          throws DataException

Description copied from class: DataEndpoint

Makes this endpoint ready for reading or writing.

Overrides:

open in class IntegrationReader

Throws:

DataException

close

public void close()
           throws DataException

Description copied from class: DataEndpoint

Indicates that this endpoint has finished reading or writing.

Overrides:

close in class DataEndpoint

Throws:

DataException

readImpl

protected Record readImpl()
                   throws Throwable

Description copied from class: DataReader

Overridden by subclasses to read the next record from this DataReader. The default implementation of DataReader.read() now insures that this method will not be called again after it returns a null.

If no record is available, null will be returned.

Specified by:

readImpl in class DataReader

Throws:

Throwable

getMaxInvalidRecords

public int getMaxInvalidRecords()

Indicates the number of broken Avro records to skip before this reader should fail (default 1000).

setMaxInvalidRecords

public AvroReader setMaxInvalidRecords(int maxInvalidRecords)

Indicates the number of broken Avro records to skip before this reader should fail (default 1000).

getInvalidRecordCount

public int getInvalidRecordCount()

Returns the total number of broken Avro records this reader encountered.

getSchema

public Schema getSchema()

addExceptionProperties

public DataException addExceptionProperties(DataException exception)

Description copied from class: Endpoint

Adds this endpoint's current state to a DataException. Since this method is called whenever an exception is thrown, subclasses should override it to add their specific information.

Overrides:

addExceptionProperties in class DataReader