Java Code Examples for org.apache.avro.specific.SpecificData#getSchema()

The following examples show how to use org.apache.avro.specific.SpecificData#getSchema() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: AvroDeserializationSchema.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
void checkAvroInitialized() {
	if (datumReader != null) {
		return;
	}

	ClassLoader cl = Thread.currentThread().getContextClassLoader();
	if (SpecificRecord.class.isAssignableFrom(recordClazz)) {
		SpecificData specificData = new SpecificData(cl);
		this.datumReader = new SpecificDatumReader<>(specificData);
		this.reader = specificData.getSchema(recordClazz);
	} else {
		this.reader = new Schema.Parser().parse(schemaString);
		GenericData genericData = new GenericData(cl);
		this.datumReader = new GenericDatumReader<>(null, this.reader, genericData);
	}

	this.inputStream = new MutableByteArrayInputStream();
	this.decoder = DecoderFactory.get().binaryDecoder(inputStream, null);
}
Example 2
Source File: AvroDeserializationSchema.java    From flink with Apache License 2.0 6 votes vote down vote up 
void checkAvroInitialized() {
	if (datumReader != null) {
		return;
	}

	ClassLoader cl = Thread.currentThread().getContextClassLoader();
	if (SpecificRecord.class.isAssignableFrom(recordClazz)) {
		SpecificData specificData = new SpecificData(cl);
		this.datumReader = new SpecificDatumReader<>(specificData);
		this.reader = specificData.getSchema(recordClazz);
	} else {
		this.reader = new Schema.Parser().parse(schemaString);
		GenericData genericData = new GenericData(cl);
		this.datumReader = new GenericDatumReader<>(null, this.reader, genericData);
	}

	this.inputStream = new MutableByteArrayInputStream();
	this.decoder = DecoderFactory.get().binaryDecoder(inputStream, null);
}
Example 3
Source File: AvroFactory.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
private static <T> AvroFactory<T> fromSpecific(Class<T> type, ClassLoader cl, Optional<Schema> previousSchema) {
	SpecificData specificData = new SpecificData(cl);
	Schema newSchema = specificData.getSchema(type);

	return new AvroFactory<>(
		specificData,
		newSchema,
		new SpecificDatumReader<>(previousSchema.orElse(newSchema), newSchema, specificData),
		new SpecificDatumWriter<>(newSchema, specificData)
	);
}
Example 4
Source File: AvroFactory.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
private static <T> AvroFactory<T> fromSpecific(Class<T> type, ClassLoader cl, Optional<Schema> previousSchema) {
	SpecificData specificData = new SpecificData(cl);
	Schema newSchema = specificData.getSchema(type);

	return new AvroFactory<>(
		specificData,
		newSchema,
		new SpecificDatumReader<>(previousSchema.orElse(newSchema), newSchema, specificData),
		new SpecificDatumWriter<>(newSchema, specificData)
	);
}
Example 5
Source File: AvroDeserializationSchema.java    From flink with Apache License 2.0 5 votes vote down vote up 
void checkAvroInitialized() {
	if (datumReader != null) {
		return;
	}

	ClassLoader cl = Thread.currentThread().getContextClassLoader();
	if (SpecificRecord.class.isAssignableFrom(recordClazz)) {
		SpecificData specificData = new SpecificData(cl);
		this.datumReader = new SpecificDatumReader<>(specificData);
		this.reader = specificData.getSchema(recordClazz);
	} else {
		this.reader = new Schema.Parser().parse(schemaString);
		GenericData genericData = new GenericData(cl);
		this.datumReader = new GenericDatumReader<>(null, this.reader, genericData);
	}

	this.inputStream = new MutableByteArrayInputStream();
	this.decoder = DecoderFactory.get().binaryDecoder(inputStream, null);
}