org.apache.nifi.json

Class WriteJsonResult

java.lang.Object

org.apache.nifi.serialization.AbstractRecordSetWriter

org.apache.nifi.json.WriteJsonResult

All Implemented Interfaces:

Closeable, AutoCloseable, RawRecordWriter, RecordSetWriter, RecordWriter

public class WriteJsonResult
extends AbstractRecordSetWriter
implements RecordSetWriter, RawRecordWriter

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static interface	WriteJsonResult.GeneratorTask

Field Summary

Fields

Modifier and Type	Field and Description
private com.fasterxml.jackson.core.JsonGenerator	generator
private Supplier<DateFormat>	LAZY_DATE_FORMAT
private Supplier<DateFormat>	LAZY_TIME_FORMAT
private Supplier<DateFormat>	LAZY_TIMESTAMP_FORMAT
private org.apache.nifi.logging.ComponentLog	logger
private String	mimeType
private NullSuppression	nullSuppression
private static com.fasterxml.jackson.databind.ObjectMapper	objectMapper
private OutputGrouping	outputGrouping
private RecordSchema	recordSchema
private SchemaAccessWriter	schemaAccess

Constructor Summary

Constructors

Constructor and Description
WriteJsonResult(org.apache.nifi.logging.ComponentLog logger, RecordSchema recordSchema, SchemaAccessWriter schemaAccess, OutputStream out, boolean prettyPrint, NullSuppression nullSuppression, OutputGrouping outputGrouping, String dateFormat, String timeFormat, String timestampFormat)
WriteJsonResult(org.apache.nifi.logging.ComponentLog logger, RecordSchema recordSchema, SchemaAccessWriter schemaAccess, OutputStream out, boolean prettyPrint, NullSuppression nullSuppression, OutputGrouping outputGrouping, String dateFormat, String timeFormat, String timestampFormat, String mimeType)

Method Summary

Modifier and Type	Method and Description
void	close()
void	flush()
private Object	format(Date value, Supplier<DateFormat> formatSupplier)
String	getMimeType()
private boolean	isFieldPresent(RecordField field, Record record)
protected void	onBeginRecordSet()
protected Map<String,String>	onFinishRecordSet()
private void	writeArray(Object[] values, String fieldName, com.fasterxml.jackson.core.JsonGenerator generator, DataType elementType)
WriteResult	writeRawRecord(Record record)
private void	writeRawValue(com.fasterxml.jackson.core.JsonGenerator generator, Object value, String fieldName)
Map<String,String>	writeRecord(Record record)
private void	writeRecord(Record record, RecordSchema writeSchema, com.fasterxml.jackson.core.JsonGenerator generator, WriteJsonResult.GeneratorTask startTask, WriteJsonResult.GeneratorTask endTask, boolean schemaAware)
private void	writeValue(com.fasterxml.jackson.core.JsonGenerator generator, Object value, String fieldName, DataType dataType)

Methods inherited from class org.apache.nifi.serialization.AbstractRecordSetWriter

beginRecordSet, finishRecordSet, getOutputStream, getRecordCount, incrementRecordCount, isActiveRecordSet, write, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.nifi.serialization.RecordSetWriter

beginRecordSet, finishRecordSet, write

Methods inherited from interface org.apache.nifi.serialization.RecordWriter

write

Field Detail

logger

private final org.apache.nifi.logging.ComponentLog logger

schemaAccess

private final SchemaAccessWriter schemaAccess

recordSchema

private final RecordSchema recordSchema

generator

private final com.fasterxml.jackson.core.JsonGenerator generator

nullSuppression

private final NullSuppression nullSuppression

outputGrouping

private final OutputGrouping outputGrouping

LAZY_DATE_FORMAT

private final Supplier<DateFormat> LAZY_DATE_FORMAT

LAZY_TIME_FORMAT

private final Supplier<DateFormat> LAZY_TIME_FORMAT

LAZY_TIMESTAMP_FORMAT

private final Supplier<DateFormat> LAZY_TIMESTAMP_FORMAT

mimeType

private String mimeType

objectMapper

private static final com.fasterxml.jackson.databind.ObjectMapper objectMapper

Constructor Detail

WriteJsonResult

public WriteJsonResult(org.apache.nifi.logging.ComponentLog logger,
                       RecordSchema recordSchema,
                       SchemaAccessWriter schemaAccess,
                       OutputStream out,
                       boolean prettyPrint,
                       NullSuppression nullSuppression,
                       OutputGrouping outputGrouping,
                       String dateFormat,
                       String timeFormat,
                       String timestampFormat)
                throws IOException

Throws:

IOException

WriteJsonResult

public WriteJsonResult(org.apache.nifi.logging.ComponentLog logger,
                       RecordSchema recordSchema,
                       SchemaAccessWriter schemaAccess,
                       OutputStream out,
                       boolean prettyPrint,
                       NullSuppression nullSuppression,
                       OutputGrouping outputGrouping,
                       String dateFormat,
                       String timeFormat,
                       String timestampFormat,
                       String mimeType)
                throws IOException

Throws:

IOException

Method Detail

onBeginRecordSet

protected void onBeginRecordSet()
                         throws IOException

Overrides:

onBeginRecordSet in class AbstractRecordSetWriter

Throws:

IOException

onFinishRecordSet

protected Map<String,String> onFinishRecordSet()
                                        throws IOException

Overrides:

onFinishRecordSet in class AbstractRecordSetWriter

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractRecordSetWriter

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface RecordWriter

Overrides:

flush in class AbstractRecordSetWriter

Throws:

IOException

writeRecord

public Map<String,String> writeRecord(Record record)
                               throws IOException

Specified by:

writeRecord in class AbstractRecordSetWriter

Throws:

IOException

writeRawRecord

public WriteResult writeRawRecord(Record record)
                           throws IOException

Specified by:

writeRawRecord in interface RawRecordWriter

Throws:

IOException

writeRecord

private void writeRecord(Record record,
                         RecordSchema writeSchema,
                         com.fasterxml.jackson.core.JsonGenerator generator,
                         WriteJsonResult.GeneratorTask startTask,
                         WriteJsonResult.GeneratorTask endTask,
                         boolean schemaAware)
                  throws IOException

Throws:

IOException

isFieldPresent

private boolean isFieldPresent(RecordField field,
                               Record record)

writeRawValue

private void writeRawValue(com.fasterxml.jackson.core.JsonGenerator generator,
                           Object value,
                           String fieldName)
                    throws IOException

Throws:

IOException

format

private Object format(Date value,
                      Supplier<DateFormat> formatSupplier)

writeValue

private void writeValue(com.fasterxml.jackson.core.JsonGenerator generator,
                        Object value,
                        String fieldName,
                        DataType dataType)
                 throws IOException

Throws:

IOException

writeArray

private void writeArray(Object[] values,
                        String fieldName,
                        com.fasterxml.jackson.core.JsonGenerator generator,
                        DataType elementType)
                 throws IOException

Throws:

IOException

getMimeType

public String getMimeType()

Specified by:

getMimeType in interface RecordWriter