public IAsyncResult DoQuery(Query query, IQueryResult result,
IQueryableChangeData changeData)
{
ICollection l;
SearchRequest sreq = new SearchRequest();
l = query.Text;
if ((l != null) && (l.Count > 0))
{
sreq.text = ICollection2StringList(query.Text);
}
l = query.MimeTypes;
if ((l != null) && (l.Count > 0))
{
sreq.mimeType = ICollection2StringList(query.MimeTypes);
}
l = query.Sources;
if ((l != null) && (l.Count > 0))
{
sreq.searchSources = ICollection2StringList(query.Sources);
}
sreq.qdomain = QueryDomain.Global; //Caution: This Enables Cascaded NetBeagle searching !
//sreq.qdomain = QueryDomain.System;
//Cache the query request, get a unique searchId and include in network searchRequest:
sreq.searchId = NetworkedBeagle.AddRequest(query);
int hc = NetworkedBeagle.HopCount(query);
sreq.hopCount = (hc > 0) ? hc:1;
log.Info("NetBeagleHandler: Starting WebService Query for " + Hostname + ":" + Port);
ReqContext rc = new ReqContext(wsp, result, netBeagleQueryable);
IAsyncResult ar = wsp.BeginBeagleQuery(sreq, DoQueryResponseHandler, rc);
// Return w/o waiting for Async query to complete.
// Return IAsynResult handle, to allow caller to control it, if required.
return(ar);
}
public static void DoQueryResponseHandler(IAsyncResult ar)
{
ReqContext rc = (ReqContext)ar.AsyncState;
IQueryable iq = rc.GetQueryable;
BeagleWebService wsp = rc.GetProxy;
IQueryResult result = rc.GetResult;
int count = 0;
//bool hitRejectsLogged = false;
try
{
SearchResult resp = wsp.EndBeagleQuery(ar);
if ((resp != null) && (resp.numResults > 0))
{
if (rc.SearchToken == null)
{
rc.SearchToken = resp.searchToken;
}
//NetContext nc = new NetContext(wsp, resp.searchToken);
HitResult[] hres = resp.hitResults;
ArrayList nwhits = new ArrayList();
for (int i = 0; i < hres.Length; i++)
{
try {
HitResult hr = hres[i];
Hit hit = new NetworkHit();
//[Uri Format] netbeagle://164.99.153.134:8888/searchToken?http:///....
if (hr.uri.StartsWith(NetworkedBeagle.BeagleNetPrefix))
{
hit.UriAsString = hr.uri;
}
else
{
string[] fragments = hr.uri.Split('/');
string hostNamePort = fragments[2];
hit.UriAsString = NetworkedBeagle.BeagleNetPrefix + hostNamePort + "/" + resp.searchToken + "?" + hr.uri;
}
hit.Type = hr.resourceType;
hit.MimeType = hr.mimeType;
hit.Source = "Network"; //hit.Source = hr.source;
hit.Score = hr.score;
if (hr.properties.Length > 0)
{
foreach (HitProperty hp in hr.properties)
{
Property p = Property.New(hp.PKey, hp.PVal);
p.IsMutable = hp.IsMutable;
p.IsSearched = hp.IsSearched;
hit.AddProperty(p);
}
}
//Add Snippet
((NetworkHit)hit).snippet = hr.snippet;
//if (hr.snippet != null)
//log.Debug("\nNBH: URI" + i + "=" + hr.uri + "\n Snippet=" + hr.snippet);
((NetworkHit)hit).context = new NetContext(hr.hashCode);
//Add NetBeagleQueryable instance
hit.SourceObject = iq;
hit.SourceObjectName = ((NetworkedBeagle)iq).Name;
nwhits.Add(hit);
count++;
}
catch (Exception ex2) {
log.Warn("Exception in NetBeagleHandler: DoQueryResponseHandler() while processing NetworkHit: {0} from {1}\n Reason: {2} ", hres[i].uri, wsp.Hostname + ":" + wsp.Port, ex2.Message);
//log.Error ("Exception StackTrace: " + ex.StackTrace);
}
} //end for
if (nwhits.Count > 0)
{
result.Add(nwhits);
}
/*
* if ((! result.Add (nwhits)) && (! hitRejectsLogged))
* {
* hitRejectsLogged = true;
* log.Info("NetBeagleHandler: Network Hits rejected by HitRegulator. Too many Hits!");
* }
*/
log.Info("NetBeagleHandler: DoQueryResponseHandler() Got {0} result(s) from Index {1} from Networked Beagle at {2}", count, resp.firstResultIndex, wsp.Hostname + ":" + wsp.Port);
int index = resp.firstResultIndex + resp.numResults;
if (index < resp.totalResults)
{
log.Debug("NetBeagleHandler: DoQueryResponseHandler() invoking GetResults with index: " + index);
string searchToken = resp.searchToken;
GetResultsRequest req = new GetResultsRequest();
req.startIndex = index;
req.searchToken = searchToken;
IAsyncResult ar2;
ar2 = wsp.BeginGetResults(req, NetBeagleHandler.DoQueryResponseHandler, rc);
return;
}
} //end if
else
{
if (resp == null)
{
log.Warn("NetBeagleHandler: DoQueryResponseHandler() got Null response from EndBeagleQuery() !");
}
}
}
catch (Exception ex) {
log.Error("Exception in NetBeagleHandler: DoQueryResponseHandler() - {0} - for {1} ", ex.Message, wsp.Hostname + ":" + wsp.Port);
}
//Signal completion of request handling
rc.RequestProcessed = true;
}
public IAsyncResult DoQuery (Query query, IQueryResult result,
IQueryableChangeData changeData)
{
ICollection l;
SearchRequest sreq = new SearchRequest();
l = query.Text;
if ((l != null) && (l.Count > 0))
sreq.text = ICollection2StringList(query.Text);
l = query.MimeTypes;
if ((l != null) && (l.Count > 0))
sreq.mimeType = ICollection2StringList(query.MimeTypes);
l = query.Sources;
if ((l != null) && (l.Count > 0))
sreq.searchSources = ICollection2StringList(query.Sources);
sreq.qdomain = QueryDomain.Global; //Caution: This Enables Cascaded NetBeagle searching !
//sreq.qdomain = QueryDomain.System;
//Cache the query request, get a unique searchId and include in network searchRequest:
sreq.searchId = NetworkedBeagle.AddRequest(query);
int hc = NetworkedBeagle.HopCount(query);
sreq.hopCount = (hc > 0) ? hc:1;
log.Info("NetBeagleHandler: Starting WebService Query for " + Hostname + ":" + Port);
ReqContext rc = new ReqContext(wsp, result, netBeagleQueryable);
IAsyncResult ar = wsp.BeginBeagleQuery(sreq, DoQueryResponseHandler, rc);
// Return w/o waiting for Async query to complete.
// Return IAsynResult handle, to allow caller to control it, if required.
return ar;
}
