public void Simple_Results_JSON(HttpResponse Response, List <string> UrlSegments, NameValueCollection QueryString, Microservice_Endpoint_Protocol_Enum Protocol, bool IsDebug)
{
Custom_Tracer tracer = new Custom_Tracer();
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_JSON", "Parse request to determine search requested");
// Get all the searh field necessary from the query string
Results_Arguments args = new Results_Arguments(QueryString);
// Additional results arguments
// limit number of results
int artificial_result_limitation = -1;
Boolean isNumeric = false;
if (!String.IsNullOrEmpty(QueryString["limit_results"]))
{
isNumeric = Int32.TryParse(QueryString["limit_results"], out artificial_result_limitation);
if (!isNumeric)
{
artificial_result_limitation = -1;
}
else if (artificial_result_limitation < 1)
{
artificial_result_limitation = -1;
}
}
int pagenum = 1;
if (!String.IsNullOrEmpty(QueryString["page"]))
{
isNumeric = Int32.TryParse(QueryString["page"], out pagenum);
if (!isNumeric)
{
pagenum = 1;
}
else if (pagenum < 1)
{
pagenum = 1;
}
else if (pagenum > 1)
{
artificial_result_limitation = -1;
}
}
// Was a collection indicated?
if (UrlSegments.Count > 0)
{
args.Aggregation = UrlSegments[0];
}
// Get the aggregation object (we need to know which facets to use, etc.. )
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_JSON", "Get the '" + args.Aggregation + "' item aggregation (for facets, etc..)");
Complete_Item_Aggregation aggr = AggregationServices.get_complete_aggregation(args.Aggregation, true, tracer);
// If no aggregation was returned, that is an error
if (aggr == null)
{
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_JSON", "Returned aggregation was NULL... aggregation code may not be valid");
if (IsDebug)
{
Response.ContentType = "text/plain";
Response.Output.WriteLine("DEBUG MODE DETECTED");
Response.Output.WriteLine();
Response.Output.WriteLine(tracer.Text_Trace);
return;
}
Response.ContentType = "text/plain";
Response.Output.WriteLine("Error occurred or aggregation '" + args.Aggregation + "' not valid");
Response.StatusCode = 500;
return;
}
// Perform the search
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_JSON", "Perform the search");
Search_Results_Statistics resultsStats;
List <iSearch_Title_Result> resultsPage;
ResultsEndpointErrorEnum error = Get_Search_Results(args, aggr, false, tracer, out resultsStats, out resultsPage);
// Was this in debug mode?
// If this was debug mode, then just write the tracer
if (IsDebug)
{
Response.ContentType = "text/plain";
Response.Output.WriteLine("DEBUG MODE DETECTED");
Response.Output.WriteLine();
Response.Output.WriteLine(tracer.Text_Trace);
return;
}
Response.Output.WriteLine("{\"stats\":{\"total_items\":\"" + resultsStats.Total_Items + "\",\"total_titles\":\"" + resultsStats.Total_Titles + "\"},");
Response.Output.WriteLine(" \"results\":[");
// Map to the results object title / item
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_JSON", "Map to the results object title / item");
int items_counter = 0;
int resultnum = 0;
if (resultsPage != null)
{
foreach (iSearch_Title_Result thisResult in resultsPage)
{
// Every results should have an item
if (thisResult.Item_Count == 0)
{
continue;
}
else
{
resultnum++;
}
if (artificial_result_limitation != -1 && resultnum > artificial_result_limitation)
{
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Reached limit [" + artificial_result_limitation + "].");
break;
}
// Was this NOT the first item?
if (items_counter > 0)
{
Response.Output.WriteLine(",");
}
Response.Output.Write(" ");
items_counter++;
// add each descriptive field over
iSearch_Item_Result itemResult = thisResult.Get_Item(0);
string bibid = thisResult.BibID;
string title = thisResult.GroupTitle;
string vid = itemResult.VID;
string thumbnail = itemResult.MainThumbnail;
// {"bibid":"1212", "vid":"00001", "title":"sdsd", "subjects":["subj1", "subj2", "subj3"] },
Response.Output.Write("{ \"bibid\":\"" + bibid + "\", \"vid\":\"" + vid + "\", ");
Response.Output.Write("\"title\":\"" + HttpUtility.HtmlEncode(title) + "\",");
Response.Output.Write("\"url_item\":\"" + Engine_ApplicationCache_Gateway.Settings.Servers.Application_Server_URL + bibid + "/" + vid + "/\",");
Response.Output.Write("\"url_thumbnail\":\"" + Engine_ApplicationCache_Gateway.Settings.Servers.Image_URL +
SobekFileSystem.AssociFilePath(bibid, vid).Replace("\\", "/") + thumbnail + "\"");
int field_index = 0;
if (resultsStats.Metadata_Labels.Count > 0)
{
foreach (string metadataTerm in resultsStats.Metadata_Labels)
{
if (!String.IsNullOrWhiteSpace(thisResult.Metadata_Display_Values[field_index]))
{
// how to display this metadata field?
string metadataTermDisplay = metadataTerm;
string termString = thisResult.Metadata_Display_Values[field_index];
Response.Output.Write(",\"" + metadataTermDisplay + "\":[");
int individual_term_counter = 0;
if (termString.IndexOf("|") > 0)
{
string[] splitter = termString.Split("|".ToCharArray());
foreach (string thisSplit in splitter)
{
if (!String.IsNullOrWhiteSpace(thisSplit))
{
if (individual_term_counter > 0)
{
Response.Output.Write(", \"" + HttpUtility.HtmlEncode(thisSplit.Trim()) + "\"");
}
else
{
Response.Output.Write("\"" + HttpUtility.HtmlEncode(thisSplit.Trim()) + "\"");
}
individual_term_counter++;
}
}
}
else
{
Response.Output.Write("\"" + HttpUtility.HtmlEncode(termString.Trim()) + "\"");
}
Response.Output.Write("]");
}
field_index++;
}
}
Response.Output.Write("}");
}
}
Response.Output.WriteLine();
Response.Output.WriteLine(" ]");
Response.Output.WriteLine("} ");
// If an error occurred, return the error
switch (error)
{
case ResultsEndpointErrorEnum.Database_Exception:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Database exception");
Response.StatusCode = 500;
return;
case ResultsEndpointErrorEnum.Database_Timeout_Exception:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Database timeout");
Response.StatusCode = 500;
return;
case ResultsEndpointErrorEnum.Solr_Exception:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Solr exception");
Response.StatusCode = 500;
return;
case ResultsEndpointErrorEnum.Unknown:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Unknown error");
Response.StatusCode = 500;
return;
}
}
public void Simple_Results_XML(HttpResponse Response, List <string> UrlSegments, NameValueCollection QueryString, Microservice_Endpoint_Protocol_Enum Protocol, bool IsDebug)
{
// Local trace
Custom_Tracer tracer = new Custom_Tracer();
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML");
// Get all the searh field necessary from the query string
Results_Arguments args = new Results_Arguments(QueryString);
// Additional results arguments
// limit number of results
int artificial_result_limitation = -1;
Boolean isNumeric = false;
if (!String.IsNullOrEmpty(QueryString["limit_results"]))
{
isNumeric = Int32.TryParse(QueryString["limit_results"], out artificial_result_limitation);
if (!isNumeric)
{
artificial_result_limitation = -1;
}
else if (artificial_result_limitation < 1)
{
artificial_result_limitation = -1;
}
}
int pagenum = 1;
if (!String.IsNullOrEmpty(QueryString["page"]))
{
isNumeric = Int32.TryParse(QueryString["page"], out pagenum);
if (!isNumeric)
{
pagenum = 1;
}
else if (pagenum < 1)
{
pagenum = 1;
}
else if (pagenum > 1)
{
artificial_result_limitation = -1;
}
}
// Was a collection indicated?
if (UrlSegments.Count > 0)
{
args.Aggregation = UrlSegments[0];
}
// Get the aggregation object (we need to know which facets to use, etc.. )
tracer.Add_Trace("SimpleResultsEndpoints.Get_Search_Results_Set", "Get the '" + args.Aggregation + "' item aggregation (for facets, etc..)");
Complete_Item_Aggregation aggr = AggregationServices.get_complete_aggregation(args.Aggregation, true, tracer);
// If no aggregation was returned, that is an error
if (aggr == null)
{
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Returned aggregation was NULL... aggregation code may not be valid");
if (IsDebug)
{
Response.ContentType = "text/plain";
Response.Output.WriteLine("DEBUG MODE DETECTED");
Response.Output.WriteLine();
Response.Output.WriteLine(tracer.Text_Trace);
return;
}
Response.ContentType = "text/plain";
Response.Output.WriteLine("Error occurred or aggregation '" + args.Aggregation + "' not valid");
Response.StatusCode = 500;
return;
}
// Perform the search
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Perform the search");
Search_Results_Statistics resultsStats;
List <iSearch_Title_Result> resultsPage;
ResultsEndpointErrorEnum error = Get_Search_Results(args, aggr, false, tracer, out resultsStats, out resultsPage);
// Was this in debug mode?
// If this was debug mode, then just write the tracer
if (IsDebug)
{
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Debug mode detected");
Response.ContentType = "text/plain";
Response.Output.WriteLine("DEBUG MODE DETECTED");
Response.Output.WriteLine();
Response.Output.WriteLine(tracer.Text_Trace);
return;
}
try
{
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Begin writing the XML result to the response");
Response.Output.WriteLine("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>");
int count_pages = (int)Math.Floor((double)resultsStats.Total_Items / 20);
if (count_pages == 0)
{
count_pages = 1;
}
if (pagenum > count_pages)
{
pagenum = count_pages;
}
Response.Output.WriteLine("<results total_items=\"" + resultsStats.Total_Items + "\" total_titles=\"" + resultsStats.Total_Titles + "\" page_count=\"" + count_pages + "\" max_results_per_page=\"20\"");
if (artificial_result_limitation != -1)
{
Response.Output.WriteLine("limit_results=\"" + artificial_result_limitation + "\"");
}
Response.Output.WriteLine(">");
// Map to the results object title / item
tracer.Add_Trace("SimpleResultsEndpoints.Get_Search_Results_Set", "Map to the results object title / item");
// resultnum
int resultnum = 0;
if (pagenum > 1)
{
resultnum = ((pagenum - 1) * 20);
}
if (resultsPage != null)
{
foreach (iSearch_Title_Result thisResult in resultsPage)
{
// Every results should have an item
if (thisResult.Item_Count == 0)
{
continue;
}
else
{
resultnum++;
}
if (artificial_result_limitation != -1 && resultnum > artificial_result_limitation)
{
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Reached limit [" + artificial_result_limitation + "].");
break;
}
// add each descriptive field over
iSearch_Item_Result itemResult = thisResult.Get_Item(0);
string bibid = thisResult.BibID;
string title = thisResult.GroupTitle;
string vid = itemResult.VID;
string thumbnail = itemResult.MainThumbnail;
Response.Output.WriteLine(" <result resultnum=\"" + resultnum + "\" bibid=\"" + bibid + "\" vid=\"" + vid + "\">");
Response.Output.WriteLine(" <title>" + HttpUtility.HtmlEncode(title) + "</title>");
Response.Output.WriteLine(" <url_item>" + Engine_ApplicationCache_Gateway.Settings.Servers.Application_Server_URL + bibid + "/" + vid + "/</url_item>");
if (!String.IsNullOrEmpty(thumbnail))
{
try
{
Response.Output.WriteLine(" <url_thumbnail>" + Engine_ApplicationCache_Gateway.Settings.Servers.Image_URL +
SobekFileSystem.AssociFilePath(bibid, vid).Replace("\\", "/") + thumbnail.Trim() + "</url_thumbnail>");
}
catch (Exception ee)
{
Response.Output.WriteLine("ERROR WRITING THUMBNAIL");
Response.Output.WriteLine(ee.Message);
Response.Output.WriteLine(ee.StackTrace);
}
}
int field_index = 0;
if (resultsStats.Metadata_Labels.Count > 0)
{
Response.Output.WriteLine("<metadata>");
foreach (string metadataTerm in resultsStats.Metadata_Labels)
{
if (!String.IsNullOrWhiteSpace(thisResult.Metadata_Display_Values[field_index]))
{
// how to display this metadata field?
string metadataTermDisplay = metadataTerm;
string termString = thisResult.Metadata_Display_Values[field_index];
if (termString.IndexOf("|") > 0)
{
string[] splitter = termString.Split("|".ToCharArray());
foreach (string thisSplit in splitter)
{
if (!String.IsNullOrWhiteSpace(thisSplit))
{
Response.Output.WriteLine(" <" + metadataTermDisplay + ">" + HttpUtility.HtmlEncode(thisSplit.Trim()) + "</" + metadataTermDisplay + ">");
}
}
}
else
{
Response.Output.WriteLine(" <" + metadataTermDisplay + ">" + HttpUtility.HtmlEncode(termString.Trim()) + "</" + metadataTermDisplay + ">");
}
}
field_index++;
}
Response.Output.WriteLine("</metadata>");
}
Response.Output.WriteLine(" </result>");
}
}
Response.Output.WriteLine("</results>");
tracer.Add_Trace("SimpleResultsEndpoints.Simple_Results_XML", "Done writing the XML result to the response");
}
catch (Exception ee)
{
Response.Output.Write(ee.Message);
Response.Output.Write(ee.StackTrace);
}
// If an error occurred, return the error
switch (error)
{
case ResultsEndpointErrorEnum.Database_Exception:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Database exception");
Response.StatusCode = 500;
return;
case ResultsEndpointErrorEnum.Database_Timeout_Exception:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Database timeout");
Response.StatusCode = 500;
return;
case ResultsEndpointErrorEnum.Solr_Exception:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Solr exception");
Response.StatusCode = 500;
return;
case ResultsEndpointErrorEnum.Unknown:
Response.ContentType = "text/plain";
Response.Output.WriteLine("Unknown error");
Response.StatusCode = 500;
return;
}
// If debug, show the trace
if (IsDebug)
{
Response.ContentType = "text/plain";
Response.Output.WriteLine("DEBUG MODE DETECTED");
Response.Output.WriteLine();
Response.Output.WriteLine(tracer.Text_Trace);
return;
}
}
