org.apache.calcite.avatica.remote

Class ProtobufTranslationImpl

java.lang.Object

org.apache.calcite.avatica.remote.ProtobufTranslationImpl

All Implemented Interfaces:

ProtobufTranslation

public class ProtobufTranslationImpl
extends Object
implements ProtobufTranslation

Implementation of ProtobufTranslationImpl that translates protobuf requests to POJO requests.

Field Summary

Fields

Modifier and Type	Field and Description
private static Map<String,RequestTranslator>	REQUEST_PARSERS
private static Map<String,ResponseTranslator>	RESPONSE_PARSERS

Constructor Summary

Constructors

Constructor and Description
ProtobufTranslationImpl()

Method Summary

Methods

Modifier and Type	Method and Description
static RequestTranslator	getParserForRequest(String className) Fetches the concrete message's Parser implementation.
static ResponseTranslator	getParserForResponse(String className) Fetches the concrete message's Parser implementation.
Service.Request	parseRequest(byte[] bytes) Parses a serialized protocol buffer request into a Service.Request.
Service.Response	parseResponse(byte[] bytes) Parses a serialized protocol buffer response into a Service.Response.
(package private) void	serializeMessage(OutputStream out, com.google.protobuf.Message msg)
byte[]	serializeRequest(Service.Request request) Serializes a Service.Request as a protocol buffer.
byte[]	serializeResponse(Service.Response response) Serializes a Service.Response as a protocol buffer.

Methods inherited from class java.lang.Object

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

Field Detail

REQUEST_PARSERS

private static final Map<String,RequestTranslator> REQUEST_PARSERS

RESPONSE_PARSERS

private static final Map<String,ResponseTranslator> RESPONSE_PARSERS

Constructor Detail

ProtobufTranslationImpl

public ProtobufTranslationImpl()

Method Detail

getParserForRequest

public static RequestTranslator getParserForRequest(String className)

Fetches the concrete message's Parser implementation.

Parameters:

className - The protocol buffer class name

Returns:

The Parser for the class

Throws:

IllegalArgumentException - If the argument is null or if a Parser for the given class name is not found.

getParserForResponse

public static ResponseTranslator getParserForResponse(String className)

Fetches the concrete message's Parser implementation.

Parameters:

className - The protocol buffer class name

Returns:

The Parser for the class

Throws:

IllegalArgumentException - If the argument is null or if a Parser for the given class name is not found.

serializeResponse

public byte[] serializeResponse(Service.Response response)
                         throws IOException

Description copied from interface: ProtobufTranslation

Serializes a Service.Response as a protocol buffer.

Specified by:

serializeResponse in interface ProtobufTranslation

Parameters:

response - The response to serialize

Throws:

IOException - If there are errors during serialization

serializeRequest

public byte[] serializeRequest(Service.Request request)
                        throws IOException

Description copied from interface: ProtobufTranslation

Serializes a Service.Request as a protocol buffer.

Specified by:

serializeRequest in interface ProtobufTranslation

Parameters:

request - The request to serialize

Throws:

IOException - If there are errors during serialization

serializeMessage

void serializeMessage(OutputStream out,
                    com.google.protobuf.Message msg)
                throws IOException

Throws:

IOException

parseRequest

public Service.Request parseRequest(byte[] bytes)
                             throws com.google.protobuf.InvalidProtocolBufferException

Description copied from interface: ProtobufTranslation

Parses a serialized protocol buffer request into a Service.Request.

Specified by:

parseRequest in interface ProtobufTranslation

Parameters:

bytes - Serialized protocol buffer request from client

Returns:

A Request object for the given bytes

Throws:

com.google.protobuf.InvalidProtocolBufferException - If the protocol buffer cannot be deserialized

parseResponse

public Service.Response parseResponse(byte[] bytes)
                               throws com.google.protobuf.InvalidProtocolBufferException

Description copied from interface: ProtobufTranslation

Parses a serialized protocol buffer response into a Service.Response.

Specified by:

parseResponse in interface ProtobufTranslation

Parameters:

bytes - Serialized protocol buffer request from server

Returns:

The Response object for the given bytes

Throws:

com.google.protobuf.InvalidProtocolBufferException - If the protocol buffer cannot be deserialized