Esempio n. 1
0
        public static QueueMessage ToQueueMessage(CloudQueueMessage message)
        {
            if (message == null)
            {
                return(null);
            }

            byte[]       mb = message.AsBytes;
            QueueMessage result;

            if (!IsCustomMessage(mb))
            {
                result = new QueueMessage(CreateId(message), mb);
            }
            else
            {
                using (var ms = new MemoryStream(mb))
                {
                    //skip forward custom message flag
                    ms.Seek(CustomFlagBytes.Length, SeekOrigin.Begin);

                    //read the custom properties length
                    int cpl;
                    using (var br = new BinaryReader(ms, Encoding.UTF8, true))
                    {
                        cpl = br.ReadInt32();
                    }

                    //read the actual properties
                    byte[] propBytes = new byte[cpl];
                    ms.Read(propBytes, 0, cpl);
                    string    propString = Encoding.UTF8.GetString(propBytes);
                    JsonProps props      = propString.AsJsonObject <JsonProps>();

                    //read message data
                    byte[] leftovers = ms.ToByteArray();

                    result = new QueueMessage(CreateId(message), leftovers);
                    foreach (JsonProp prop in props.Properties)
                    {
                        result.Properties[prop.Name] = prop.Value;
                    }
                }
            }

            result.DequeueCount = message.DequeueCount;
            return(result);
        }
Esempio n. 2
0
        public static CloudQueueMessage ToCloudQueueMessage(QueueMessage message)
        {
            if (message == null)
            {
                throw new ArgumentNullException(nameof(message));
            }

            //when there are no properties pack the data as binary in raw form
            if (message.Properties == null || message.Properties.Count == 0)
            {
                var r = new CloudQueueMessage((string)null);
                r.SetMessageContent2(message.Content);
                return(r);
            }

            //note that Azure Storage doesn't have properties on message, therefore I can do a simulation instead

            var clazz = new JsonProps
            {
                Properties = message.Properties.Select(p => new JsonProp {
                    Name = p.Key, Value = p.Value
                }).ToArray()
            };

            byte[] propBytes = Encoding.UTF8.GetBytes(clazz.ToJsonString());

            CloudQueueMessage result;

            using (var ms = new MemoryStream())
            {
                using (var writer = new BinaryWriter(ms, Encoding.UTF8))
                {
                    writer.Write(CustomFlagBytes);
                    writer.Write(propBytes.Length);
                    writer.Write(propBytes);
                    if (message.Content != null)
                    {
                        writer.Write(message.Content);
                    }
                }

                result = new CloudQueueMessage((string)null);
                result.SetMessageContent2(ms.ToArray());
            }

            return(result);
        }