org.apache.dubbo.common.serialize.protobuf.support

Class GenericProtobufJsonObjectInput

java.lang.Object

org.apache.dubbo.common.serialize.protobuf.support.GenericProtobufJsonObjectInput

All Implemented Interfaces:

DataInput, ObjectInput

public class GenericProtobufJsonObjectInput
extends Object
implements ObjectInput

GenericGoogleProtobuf object input implementation

Constructor Summary

Constructors

Constructor and Description
GenericProtobufJsonObjectInput(InputStream in)

Method Summary

Modifier and Type	Method and Description
Map<String,Object>	readAttachments() FIXME, only supports transmission of String values.
boolean	readBool() Read boolean.
byte	readByte() Read byte.
byte[]	readBytes() Read byte array.
double	readDouble() Read double.
Object	readEvent()
float	readFloat() Read float.
int	readInt() Read integer.
long	readLong() Read long.
Object	readObject() Consider use ObjectInput.readObject(Class) or ObjectInput.readObject(Class, Type) where possible
<T> T	readObject(Class<T> cls) read object
<T> T	readObject(Class<T> cls, Type type) read object
short	readShort() Read short integer.
Throwable	readThrowable() The following methods are customized for the requirement of Dubbo's RPC protocol implementation.
String	readUTF() Read UTF-8 string.

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericProtobufJsonObjectInput

public GenericProtobufJsonObjectInput(InputStream in)

Method Detail

readBool

public boolean readBool()
                 throws IOException

Description copied from interface: DataInput

Read boolean.

Specified by:

readBool in interface DataInput

Returns:

boolean.

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Description copied from interface: DataInput

Read byte.

Specified by:

readByte in interface DataInput

Returns:

byte value.

Throws:

IOException

readShort

public short readShort()
                throws IOException

Description copied from interface: DataInput

Read short integer.

Specified by:

readShort in interface DataInput

Returns:

short.

Throws:

IOException

readInt

public int readInt()
            throws IOException

Description copied from interface: DataInput

Read integer.

Specified by:

readInt in interface DataInput

Returns:

integer.

Throws:

IOException

readLong

public long readLong()
              throws IOException

Description copied from interface: DataInput

Read long.

Specified by:

readLong in interface DataInput

Returns:

long.

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Description copied from interface: DataInput

Read float.

Specified by:

readFloat in interface DataInput

Returns:

float.

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Description copied from interface: DataInput

Read double.

Specified by:

readDouble in interface DataInput

Returns:

double.

Throws:

IOException

readUTF

public String readUTF()
               throws IOException

Description copied from interface: DataInput

Read UTF-8 string.

Specified by:

readUTF in interface DataInput

Returns:

string.

Throws:

IOException

readBytes

public byte[] readBytes()
                 throws IOException

Description copied from interface: DataInput

Read byte array.

Specified by:

readBytes in interface DataInput

Returns:

byte array.

Throws:

IOException

readObject

public Object readObject()

Description copied from interface: ObjectInput

Consider use ObjectInput.readObject(Class) or ObjectInput.readObject(Class, Type) where possible

Specified by:

readObject in interface ObjectInput

Returns:

object

readObject

public <T> T readObject(Class<T> cls)
                 throws IOException

Description copied from interface: ObjectInput

read object

Specified by:

readObject in interface ObjectInput

Parameters:

cls - object class

Returns:

object

Throws:

IOException - if an I/O error occurs

readObject

public <T> T readObject(Class<T> cls,
                        Type type)
                 throws IOException

Description copied from interface: ObjectInput

read object

Specified by:

readObject in interface ObjectInput

Parameters:

cls - object class

type - object type

Returns:

object

Throws:

IOException - if an I/O error occurs

readThrowable

public Throwable readThrowable()
                        throws IOException

Description copied from interface: ObjectInput

The following methods are customized for the requirement of Dubbo's RPC protocol implementation. Legacy protocol implementation will try to write Map, Throwable and Null value directly to the stream, which does not meet the restrictions of all serialization protocols.

See how ProtobufSerialization, KryoSerialization implemented these methods for more details.

The binding of RPC protocol and biz serialization protocol is not a good practice. Encoding of RPC protocol should be highly independent and portable, easy to cross platforms and languages, for example, like the http headers, restricting the content of headers / attachments to Ascii strings and uses ISO_8859_1 to encode them. https://tools.ietf.org/html/rfc7540#section-8.1.2

Specified by:

readThrowable in interface ObjectInput

Throws:

IOException

readAttachments

public Map<String,Object> readAttachments()
                                   throws IOException,
                                          ClassNotFoundException

FIXME, only supports transmission of String values.

Specified by:

readAttachments in interface ObjectInput

Returns:

Throws:

IOException

ClassNotFoundException

readEvent

public Object readEvent()
                 throws IOException,
                        ClassNotFoundException

Specified by:

readEvent in interface ObjectInput

Throws:

IOException

ClassNotFoundException