Package org.infinispan.protostream

Class ProtobufUtil

java.lang.Object

org.infinispan.protostream.ProtobufUtil

public final class ProtobufUtil
extends Object

This is the entry point to the ProtoStream library. This class provides methods to write and read Java objects to/from a Protobuf encoded data stream. Also provides conversion to and from canonical JSON.

Since:

1.0

Author:

[email protected]

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEFAULT_ARRAY_BUFFER_SIZE
static int	DEFAULT_STREAM_BUFFER_SIZE

Method Summary

Modifier and Type	Method	Description
static <A> int	computeMessageSize(ImmutableSerializationContext ctx, A t)
static <A> int	computeWrappedMessageSize(ImmutableSerializationContext ctx, A t)
static <A> A	fromByteArray(ImmutableSerializationContext ctx, byte[] bytes, int offset, int length, Class<A> clazz)
static <A> A	fromByteArray(ImmutableSerializationContext ctx, byte[] bytes, Class<A> clazz)
static <A> A	fromByteBuffer(ImmutableSerializationContext ctx, ByteBuffer byteBuffer, Class<A> clazz)
static byte[]	fromCanonicalJSON(ImmutableSerializationContext ctx, Reader reader)
static <A> A	fromWrappedByteArray(ImmutableSerializationContext ctx, byte[] bytes)	Parses a top-level message that was wrapped according to the org.infinispan.protostream.WrappedMessage proto definition.
static <A> A	fromWrappedByteArray(ImmutableSerializationContext ctx, byte[] bytes, int offset, int length)
static <A> A	fromWrappedByteBuffer(ImmutableSerializationContext ctx, ByteBuffer byteBuffer)
static <A> A	fromWrappedStream(ImmutableSerializationContext ctx, InputStream in)
static SerializationContext	newSerializationContext()
static SerializationContext	newSerializationContext(Configuration configuration)
static <A> A	readFrom(ImmutableSerializationContext ctx, InputStream in, Class<A> clazz)
static byte[]	toByteArray(ImmutableSerializationContext ctx, Object t)
static ByteBuffer	toByteBuffer(ImmutableSerializationContext ctx, Object t)
static String	toCanonicalJSON(ImmutableSerializationContext ctx, byte[] bytes)	Converts a Protobuf encoded message to its canonical JSON representation.
static String	toCanonicalJSON(ImmutableSerializationContext ctx, byte[] bytes, boolean prettyPrint)	Converts a Protobuf encoded message to its canonical JSON representation.
static byte[]	toWrappedByteArray(ImmutableSerializationContext ctx, Object t)
static byte[]	toWrappedByteArray(ImmutableSerializationContext ctx, Object t, int bufferSize)
static ByteBuffer	toWrappedByteBuffer(ImmutableSerializationContext ctx, Object t)
static void	toWrappedStream(ImmutableSerializationContext ctx, OutputStream out, Object t)
static void	toWrappedStream(ImmutableSerializationContext ctx, OutputStream out, Object t, int bufferSize)
static void	writeTo(ImmutableSerializationContext ctx, OutputStream out, Object t)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_STREAM_BUFFER_SIZE

public static final int DEFAULT_STREAM_BUFFER_SIZE

See Also:

Constant Field Values

DEFAULT_ARRAY_BUFFER_SIZE

public static final int DEFAULT_ARRAY_BUFFER_SIZE

See Also:

Constant Field Values

Method Detail

newSerializationContext

public static SerializationContext newSerializationContext()

newSerializationContext

public static SerializationContext newSerializationContext(Configuration configuration)

computeMessageSize

public static <A> int computeMessageSize(ImmutableSerializationContext ctx,
                                         A t)
                                  throws IOException

Throws:

IOException

computeWrappedMessageSize

public static <A> int computeWrappedMessageSize(ImmutableSerializationContext ctx,
                                                A t)
                                         throws IOException

Throws:

IOException

writeTo

public static void writeTo(ImmutableSerializationContext ctx,
                           OutputStream out,
                           Object t)
                    throws IOException

Throws:

IOException

toByteArray

public static byte[] toByteArray(ImmutableSerializationContext ctx,
                                 Object t)
                          throws IOException

Throws:

IOException

toByteBuffer

public static ByteBuffer toByteBuffer(ImmutableSerializationContext ctx,
                                      Object t)
                               throws IOException

Throws:

IOException

readFrom

public static <A> A readFrom(ImmutableSerializationContext ctx,
                             InputStream in,
                             Class<A> clazz)
                      throws IOException

Throws:

IOException

fromByteArray

public static <A> A fromByteArray(ImmutableSerializationContext ctx,
                                  byte[] bytes,
                                  Class<A> clazz)
                           throws IOException

Throws:

IOException

fromByteArray

public static <A> A fromByteArray(ImmutableSerializationContext ctx,
                                  byte[] bytes,
                                  int offset,
                                  int length,
                                  Class<A> clazz)
                           throws IOException

Throws:

IOException

fromByteBuffer

public static <A> A fromByteBuffer(ImmutableSerializationContext ctx,
                                   ByteBuffer byteBuffer,
                                   Class<A> clazz)
                            throws IOException

Throws:

IOException

fromWrappedByteArray

public static <A> A fromWrappedByteArray(ImmutableSerializationContext ctx,
                                         byte[] bytes)
                                  throws IOException

Parses a top-level message that was wrapped according to the org.infinispan.protostream.WrappedMessage proto definition.

Parameters:

ctx - the serialization context

bytes - the array of bytes to parse

Returns:

the unwrapped object

Throws:

IOException - in case parsing fails

fromWrappedByteArray

public static <A> A fromWrappedByteArray(ImmutableSerializationContext ctx,
                                         byte[] bytes,
                                         int offset,
                                         int length)
                                  throws IOException

Throws:

IOException

fromWrappedByteBuffer

public static <A> A fromWrappedByteBuffer(ImmutableSerializationContext ctx,
                                          ByteBuffer byteBuffer)
                                   throws IOException

Throws:

IOException

fromWrappedStream

public static <A> A fromWrappedStream(ImmutableSerializationContext ctx,
                                      InputStream in)
                               throws IOException

Throws:

IOException

toWrappedByteArray

public static byte[] toWrappedByteArray(ImmutableSerializationContext ctx,
                                        Object t)
                                 throws IOException

Throws:

IOException

toWrappedByteArray

public static byte[] toWrappedByteArray(ImmutableSerializationContext ctx,
                                        Object t,
                                        int bufferSize)
                                 throws IOException

Throws:

IOException

toWrappedByteBuffer

public static ByteBuffer toWrappedByteBuffer(ImmutableSerializationContext ctx,
                                             Object t)
                                      throws IOException

Throws:

IOException

toWrappedStream

public static void toWrappedStream(ImmutableSerializationContext ctx,
                                   OutputStream out,
                                   Object t)
                            throws IOException

Throws:

IOException

toWrappedStream

public static void toWrappedStream(ImmutableSerializationContext ctx,
                                   OutputStream out,
                                   Object t,
                                   int bufferSize)
                            throws IOException

Throws:

IOException

toCanonicalJSON

public static String toCanonicalJSON(ImmutableSerializationContext ctx,
                                     byte[] bytes)
                              throws IOException

Converts a Protobuf encoded message to its canonical JSON representation.

Parameters:

ctx - the serialization context

bytes - the Protobuf encoded message bytes to parse

Returns:

the JSON string representation

Throws:

IOException - if I/O operations fail

toCanonicalJSON

public static String toCanonicalJSON(ImmutableSerializationContext ctx,
                                     byte[] bytes,
                                     boolean prettyPrint)
                              throws IOException

Converts a Protobuf encoded message to its canonical JSON representation.

Parameters:

ctx - the serialization context

bytes - the Protobuf encoded message bytes to parse

prettyPrint - indicates if the JSON output should use a 'pretty' human-readable format or a compact format

Returns:

the JSON string representation

Throws:

IOException - if I/O operations fail

fromCanonicalJSON

public static byte[] fromCanonicalJSON(ImmutableSerializationContext ctx,
                                       Reader reader)
                                throws IOException

Throws:

IOException