Package io.confluent.kafka.formatter

Class SchemaMessageReader<T>

java.lang.Object

io.confluent.kafka.formatter.SchemaMessageReader<T>

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.kafka.common.Configurable, org.apache.kafka.tools.api.RecordReader

public abstract class SchemaMessageReader<T>
extends Object
implements org.apache.kafka.tools.api.RecordReader

Field Summary

Fields

Modifier and Type	Field	Description
static final String	KEY_SCHEMA
protected ParsedSchema	keySchema
static final String	VALUE_SCHEMA
protected ParsedSchema	valueSchema

Constructor Summary

Constructors

Constructor	Description
SchemaMessageReader()	Constructor needed by kafka console producer.
SchemaMessageReader(String url, ParsedSchema keySchema, ParsedSchema valueSchema, String topic, boolean parseKey, boolean normalizeSchema, boolean autoRegister, boolean useLatest)	For testing only.

Method Summary

Modifier and Type	Method	Description
void	close()
void	configure(Map<String,?> configs)
protected abstract SchemaMessageSerializer<T>	createSerializer(org.apache.kafka.common.serialization.Serializer keySerializer)
protected abstract SchemaProvider	getProvider()
void	init(Properties props)
protected ParsedSchema	parseSchema(SchemaRegistryClient schemaRegistry, String schema, List<SchemaReference> references)
protected abstract T	readFrom(String jsonString, ParsedSchema schema)
Iterator<org.apache.kafka.clients.producer.ProducerRecord<byte[],byte[]>>	readRecords(InputStream inputStream)

Methods inherited from class java.lang.Object

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

Field Details

VALUE_SCHEMA

public static final String VALUE_SCHEMA

See Also:

• Constant Field Values

KEY_SCHEMA

public static final String KEY_SCHEMA

See Also:

• Constant Field Values

keySchema

protected ParsedSchema keySchema

valueSchema

protected ParsedSchema valueSchema

Constructor Details

SchemaMessageReader

public SchemaMessageReader()

Constructor needed by kafka console producer.

SchemaMessageReader

public SchemaMessageReader(String url,
 ParsedSchema keySchema,
 ParsedSchema valueSchema,
 String topic,
 boolean parseKey,
 boolean normalizeSchema,
 boolean autoRegister,
 boolean useLatest)

For testing only.

Method Details

createSerializer

protected abstract SchemaMessageSerializer<T> createSerializer(org.apache.kafka.common.serialization.Serializer keySerializer)

configure

public void configure(Map<String,?> configs)

Specified by:

configure in interface org.apache.kafka.common.Configurable

Specified by:

configure in interface org.apache.kafka.tools.api.RecordReader

init

public void init(Properties props)

parseSchema

protected ParsedSchema parseSchema(SchemaRegistryClient schemaRegistry,
 String schema,
 List<SchemaReference> references)

readRecords

public Iterator<org.apache.kafka.clients.producer.ProducerRecord<byte[],byte[]>> readRecords(InputStream inputStream)

Specified by:

readRecords in interface org.apache.kafka.tools.api.RecordReader

readFrom

protected abstract T readFrom(String jsonString,
 ParsedSchema schema)

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface org.apache.kafka.tools.api.RecordReader

getProvider

protected abstract SchemaProvider getProvider()