/// <summary>
/// Formats the specified message as JSON.
/// </summary>
/// <param name="message">The message to format.</param>
/// <param name="writer">The TextWriter to write the formatted message to.</param>
/// <returns>The formatted message.</returns>
public void Format(IMessage message, TextWriter writer)
{
ProtoPreconditions.CheckNotNull(message, nameof(message));
ProtoPreconditions.CheckNotNull(writer, nameof(writer));
if (message.Descriptor.IsWellKnownType)
{
WriteWellKnownTypeValue(writer, message.Descriptor, message);
}
else
{
WriteMessage(writer, message);
}
}
/// <summary>
/// Constructs a <see cref="ByteString"/> from data in the given stream, synchronously.
/// </summary>
/// <remarks>If successful, <paramref name="stream"/> will be read completely, from the position
/// at the start of the call.</remarks>
/// <param name="stream">The stream to copy into a ByteString.</param>
/// <returns>A ByteString with content read from the given stream.</returns>
public static ByteString FromStream(Stream stream)
{
ProtoPreconditions.CheckNotNull(stream, nameof(stream));
int capacity = stream.CanSeek ? checked ((int)(stream.Length - stream.Position)) : 0;
var memoryStream = new MemoryStream(capacity);
stream.CopyTo(memoryStream);
#if NETSTANDARD1_1 || NETSTANDARD2_0
byte[] bytes = memoryStream.ToArray();
#else
// Avoid an extra copy if we can.
byte[] bytes = memoryStream.Length == memoryStream.Capacity ? memoryStream.GetBuffer() : memoryStream.ToArray();
#endif
return(AttachBytes(bytes));
}
/// <summary>
/// Constructs a <see cref="ByteString"/> from data in the given stream, asynchronously.
/// </summary>
/// <remarks>If successful, <paramref name="stream"/> will be read completely, from the position
/// at the start of the call.</remarks>
/// <param name="stream">The stream to copy into a ByteString.</param>
/// <param name="cancellationToken">The cancellation token to use when reading from the stream, if any.</param>
/// <returns>A ByteString with content read from the given stream.</returns>
public async static Task <ByteString> FromStreamAsync(Stream stream, CancellationToken cancellationToken = default(CancellationToken))
{
ProtoPreconditions.CheckNotNull(stream, nameof(stream));
int capacity = stream.CanSeek ? checked ((int)(stream.Length - stream.Position)) : 0;
var memoryStream = new MemoryStream(capacity);
// We have to specify the buffer size here, as there's no overload accepting the cancellation token
// alone. But it's documented to use 81920 by default if not specified.
await stream.CopyToAsync(memoryStream, 81920, cancellationToken);
#if NETSTANDARD1_1 || NETSTANDARD2_0
byte[] bytes = memoryStream.ToArray();
#else
// Avoid an extra copy if we can.
byte[] bytes = memoryStream.Length == memoryStream.Capacity ? memoryStream.GetBuffer() : memoryStream.ToArray();
#endif
return(AttachBytes(bytes));
}
/// <summary>
/// Copies the arrays in the registry set to the specified array at the specified index
/// </summary>
/// <param name="array">The array to copy to</param>
/// <param name="arrayIndex">The array index to start at</param>
void ICollection <Extension> .CopyTo(Extension[] array, int arrayIndex)
{
ProtoPreconditions.CheckNotNull(array, nameof(array));
if (arrayIndex < 0 || arrayIndex >= array.Length)
{
throw new ArgumentOutOfRangeException(nameof(arrayIndex));
}
if (array.Length - arrayIndex < Count)
{
throw new ArgumentException("The provided array is shorter than the number of elements in the registry");
}
for (int i = 0; i < array.Length; i++)
{
Extension extension = array[i];
extensions.Add(new ObjectIntPair <Type>(extension.TargetType, extension.FieldNumber), extension);
}
}
/// <summary>
/// Converts a message to JSON for diagnostic purposes with no extra context.
/// </summary>
/// <remarks>
/// <para>
/// This differs from calling <see cref="Format(IMessage)"/> on the default JSON
/// formatter in its handling of <see cref="Any"/>. As no type registry is available
/// in <see cref="object.ToString"/> calls, the normal way of resolving the type of
/// an <c>Any</c> message cannot be applied. Instead, a JSON property named <c>@value</c>
/// is included with the base64 data from the <see cref="Any.Value"/> property of the message.
/// </para>
/// <para>The value returned by this method is only designed to be used for diagnostic
/// purposes. It may not be parsable by <see cref="JsonParser"/>, and may not be parsable
/// by other Protocol Buffer implementations.</para>
/// </remarks>
/// <param name="message">The message to format for diagnostic purposes.</param>
/// <returns>The diagnostic-only JSON representation of the message</returns>
public static string ToDiagnosticString(IMessage message)
{
ProtoPreconditions.CheckNotNull(message, nameof(message));
return(diagnosticFormatter.Format(message));
}
/// <summary>
/// Creates a new formatted with the given settings.
/// </summary>
/// <param name="settings">The settings.</param>
public JsonFormatter(Settings settings)
{
this.settings = ProtoPreconditions.CheckNotNull(settings, nameof(settings));
}
/// <summary>
/// Converts the given message into a byte string in protobuf encoding.
/// </summary>
/// <param name="message">The message to convert.</param>
/// <returns>The message data as a byte string.</returns>
public static ByteString ToByteString(this IMessage message)
{
ProtoPreconditions.CheckNotNull(message, "message");
return(ByteString.AttachBytes(message.ToByteArray()));
}
/// <summary>
/// Adds the specified extension to the registry
/// </summary>
public void Add(Extension extension)
{
ProtoPreconditions.CheckNotNull(extension, nameof(extension));
extensions.Add(new ObjectIntPair <Type>(extension.TargetType, extension.FieldNumber), extension);
}
/// <summary>
/// Removes the specified extension from the set
/// </summary>
/// <param name="item">The extension</param>
/// <returns><c>true</c> if the extension was removed, otherwise <c>false</c></returns>
public bool Remove(Extension item)
{
ProtoPreconditions.CheckNotNull(item, nameof(item));
return(extensions.Remove(new ObjectIntPair <Type>(item.TargetType, item.FieldNumber)));
}
