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);
}
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);
}
