public IndexerReceipt [] Flush (IndexerRequest request)
{
// If there isn't actually any work to do, just return
// an empty array.
if (request.IsEmpty)
return new IndexerReceipt [0];
// Iterate through the items in the IndexerRequest to
// store the streams before passing them to the helper.
foreach (Indexable indexable in request.Indexables) {
if (indexable.Type == IndexableType.Add)
indexable.StoreStream ();
}
RemoteIndexerRequest remote_request;
remote_request = new RemoteIndexerRequest ();
remote_request.RemoteIndexName = this.remote_index_name;
remote_request.RemoteIndexMinorVersion = this.remote_index_minor_version;
remote_request.Request = request;
RemoteIndexerResponse response;
response = SendRequest (remote_request);
if (response == null) {
Logger.Log.Error ("Something terrible happened --- Flush failed");
request.Cleanup ();
return null;
}
last_item_count = response.ItemCount;
return response.Receipts;
}
public IndexerReceipt [] Flush(IndexerRequest request)
{
// If there isn't actually any work to do, just return
// an empty array.
if (request.IsEmpty)
{
return(new IndexerReceipt [0]);
}
// Iterate through the items in the IndexerRequest to
// store the streams before passing them to the helper.
foreach (Indexable indexable in request.Indexables)
{
if (indexable.Type == IndexableType.Add)
{
indexable.StoreStream();
}
}
RemoteIndexerRequest remote_request;
remote_request = new RemoteIndexerRequest();
remote_request.RemoteIndexName = this.remote_index_name;
remote_request.RemoteIndexMinorVersion = this.remote_index_minor_version;
remote_request.Request = request;
RemoteIndexerResponse response;
response = SendRequest(remote_request);
if (response == null)
{
Logger.Log.Error("Something terrible happened --- Flush failed");
request.Cleanup();
return(null);
}
last_item_count = response.ItemCount;
return(response.Receipts);
}
public int GetItemCount()
{
if (last_item_count == -1)
{
// Send an empty indexing request to cause the last item count to be
// initialized.
RemoteIndexerRequest request;
request = new RemoteIndexerRequest();
RemoteIndexerResponse response;
response = SendRequest(request);
if (response != null)
{
last_item_count = response.ItemCount;
}
else
{
Logger.Log.Error("Something terrible happened --- GetItemCount failed");
}
}
return(last_item_count);
}
/////////////////////////////////////////////////////////
private RemoteIndexerResponse SendRequest (RemoteIndexerRequest request)
{
RemoteIndexerResponse response = null;
int exception_count = 0;
bool start_helper_by_hand = false;
if (Environment.GetEnvironmentVariable ("BEAGREP_RUN_HELPER_BY_HAND") != null)
start_helper_by_hand = true;
request.RemoteIndexName = remote_index_name;
request.RemoteIndexMinorVersion = remote_index_minor_version;
while (response == null
&& exception_count < 5
&& ! Shutdown.ShutdownRequested) {
bool need_helper = false;
//Logger.Log.Debug ("Sending request!");
try {
response = request.Send () as RemoteIndexerResponse;
//Logger.Log.Debug ("Done sending request");
} catch (ResponseMessageException ex) {
Logger.Log.Debug ("Caught ResponseMessageException: {0}", ex.Message);
if (ex.InnerException is System.Net.Sockets.SocketException) {
Logger.Log.Debug ("InnerException is SocketException -- we probably need to launch a helper");
need_helper = true;
} else if (ex.InnerException is IOException) {
Logger.Log.Debug ("InnerException is IOException -- we probably need to launch a helper");
need_helper = true;
} else {
Logger.Log.Debug (ex, "Unexpected exception from IndexHelper. Giving up sending this request.");
return null;
}
}
// If we caught an exception...
if (response == null) {
if (! start_helper_by_hand || ! need_helper)
++exception_count;
if (start_helper_by_hand) {
// Sleep briefly before trying again.
Thread.Sleep (1000);
} else {
// Try to activate the helper.
LaunchHelper ();
}
}
}
if (response == null && exception_count >= 5)
Logger.Log.Error ("Exception limit exceeded trying to activate a helper. Giving up on indexing!");
return response;
}
public int GetItemCount ()
{
if (last_item_count == -1) {
// Send an empty indexing request to cause the last item count to be
// initialized.
RemoteIndexerRequest request;
request = new RemoteIndexerRequest ();
RemoteIndexerResponse response;
response = SendRequest (request);
if (response != null)
last_item_count = response.ItemCount;
else
Logger.Log.Error ("Something terrible happened --- GetItemCount failed");
}
return last_item_count;
}
/////////////////////////////////////////////////////////
private RemoteIndexerResponse SendRequest(RemoteIndexerRequest request)
{
RemoteIndexerResponse response = null;
int exception_count = 0;
bool start_helper_by_hand = false;
if (Environment.GetEnvironmentVariable("BEAGREP_RUN_HELPER_BY_HAND") != null)
{
start_helper_by_hand = true;
}
request.RemoteIndexName = remote_index_name;
request.RemoteIndexMinorVersion = remote_index_minor_version;
while (response == null &&
exception_count < 5 &&
!Shutdown.ShutdownRequested)
{
bool need_helper = false;
//Logger.Log.Debug ("Sending request!");
try {
response = request.Send() as RemoteIndexerResponse;
//Logger.Log.Debug ("Done sending request");
} catch (ResponseMessageException ex) {
Logger.Log.Debug("Caught ResponseMessageException: {0}", ex.Message);
if (ex.InnerException is System.Net.Sockets.SocketException)
{
Logger.Log.Debug("InnerException is SocketException -- we probably need to launch a helper");
need_helper = true;
}
else if (ex.InnerException is IOException)
{
Logger.Log.Debug("InnerException is IOException -- we probably need to launch a helper");
need_helper = true;
}
else
{
Logger.Log.Debug(ex, "Unexpected exception from IndexHelper. Giving up sending this request.");
return(null);
}
}
// If we caught an exception...
if (response == null)
{
if (!start_helper_by_hand || !need_helper)
{
++exception_count;
}
if (start_helper_by_hand)
{
// Sleep briefly before trying again.
Thread.Sleep(1000);
}
else
{
// Try to activate the helper.
LaunchHelper();
}
}
}
if (response == null && exception_count >= 5)
{
Logger.Log.Error("Exception limit exceeded trying to activate a helper. Giving up on indexing!");
}
return(response);
}