static public StringBuilder Serialize(StringBuilder sb, delete_record_entry dre)
{
sb.Append(TypeDeleteRecordEntry);
Serialize(sb, dre.table);
Serialize(sb, dre.key);
sb.Append(' ');
return sb;
}
public bool FilterDelete(string destination, delete_record_entry record)
{
string baseUri = "/LogStreamer/out/" + record.table + "/";
bool retv = true; // block sending by default
Response response;
lock (_negativeCache)
{
if (!_negativeCache.Contains(baseUri))
{
response = Self.GET(baseUri + destination);
if (response == null || response.StatusCode == 404)
{
_negativeCache.Add(baseUri);
}
else if (response.StatusCode == 200)
{
// 200 will allow sending unless POST forbids it
retv = false;
if (response.Body != null)
{
record = StringSerializer.DeserializeDeleteRecordEntry(new StringReader(response.Body));
}
}
}
baseUri += "delete/";
if (!_negativeCache.Contains(baseUri))
{
response = Self.POST(baseUri + destination, StringSerializer.Serialize(new StringBuilder(), record).ToString());
if (response == null || response.StatusCode == 404)
{
_negativeCache.Add(baseUri);
}
else if (response.StatusCode == 200)
{
retv = false;
if (response.Body != null)
{
record = StringSerializer.DeserializeDeleteRecordEntry(new StringReader(response.Body));
}
}
else
{
// allow POST to override the GET
retv = true;
}
}
}
return retv;
}
