io.grpc.binder.internal

Class MetadataHelper

java.lang.Object

io.grpc.binder.internal.MetadataHelper

public final class MetadataHelper
extends java.lang.Object

Helper class for reading & writing metadata to parcels.

Metadata is written to a parcel as a single int for the number of name/value pairs, followed by the following pattern for each pair.

1. name length (int)
2. name (byte[])
3. value length OR sentinel (int)
4. value (byte[] OR Parcelable)

The sentinel int at the start of a value may indicate bad metadata. When this happens, no more data follows the sentinel.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MetadataHelper.ParcelableMetadataMarshaller<P extends android.os.Parcelable> A marshaller for passing parcelables in gRPC Metadata

Method Summary

Modifier and Type	Method and Description
static io.grpc.Metadata	readMetadata(android.os.Parcel parcel, io.grpc.Attributes attributes) Read a Metadata instance from a Parcel.
static void	writeMetadata(android.os.Parcel parcel, io.grpc.Metadata metadata) Write a Metadata instance to a Parcel.

Methods inherited from class java.lang.Object

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

Method Detail

writeMetadata

public static void writeMetadata(android.os.Parcel parcel,
                                 @Nullable
                                 io.grpc.Metadata metadata)
                          throws io.grpc.StatusException,
                                 java.io.IOException

Write a Metadata instance to a Parcel.

Parameters:

parcel - The Parcel to write to.

metadata - The Metadata to write.

Throws:

io.grpc.StatusException

java.io.IOException

readMetadata

public static io.grpc.Metadata readMetadata(android.os.Parcel parcel,
                                            io.grpc.Attributes attributes)
                                     throws io.grpc.StatusException

Read a Metadata instance from a Parcel.

Parameters:

parcel - The Parcel to read from.

Throws:

io.grpc.StatusException