private Dump DoLoad(Stream stream, AsyncOperation asyncOp)
{
Dump dump = new Dump();
BinaryReader reader = new BinaryReader(stream, System.Text.Encoding.ASCII);
string magic = new string(reader.ReadChars(4));
uint version = reader.ReadUInt32();
uint isCompressed = reader.ReadUInt32();
uint numEvents = reader.ReadUInt32();
if (magic != "oSpy")
{
throw new InvalidDataException("invalid signature '" + magic + "'");
}
else if (version != 2)
{
throw new InvalidDataException("unsupported version " + version);
}
else if (isCompressed != 0 && isCompressed != 1)
{
throw new InvalidDataException("invalid value for isCompressed");
}
if (isCompressed == 1)
{
stream = new BZip2InputStream(stream);
}
XmlTextReader xmlReader = new XmlTextReader(stream);
uint eventCount;
uint prevId = 0;
for (eventCount = 0; xmlReader.Read() && eventCount < numEvents;)
{
if (xmlReader.NodeType == XmlNodeType.Element && xmlReader.Name == "event")
{
if (asyncOp != null)
{
int percentComplete = (int)(((float)(eventCount + 1) / (float)numEvents) * 100.0f);
ProgressChangedEventArgs e = new ProgressChangedEventArgs(percentComplete, asyncOp.UserSuppliedState);
asyncOp.Post(m_onProgressReportDelegate, e);
}
Event ev;
try
{
XmlReader rdr = xmlReader.ReadSubtree();
ev = m_eventFactory.CreateEvent(rdr);
m_tagBuilder.Process(ev);
dump.AddEvent(ev);
}
catch (Exception ex)
{
Exception outerEx = new Exception("Error processing event following id " + prevId, ex);
throw outerEx;
}
eventCount++;
prevId = ev.Id;
}
}
if (eventCount != numEvents)
{
throw new InvalidDataException(String.Format("expected {0} events, read {1}", numEvents, eventCount));
}
return(dump);
}
public static Event CreateFromXml(string xml)
{
EventFactory factory = new EventFactory();
return(factory.CreateEvent(xml));
}
public static Event CreateFromXml(string xml)
{
EventFactory factory = new EventFactory();
return factory.CreateEvent(xml);
}