public bool getJournalsNext(string journalName, string ISSN, string keywords, ref SG.Journal journ)
{
Request requestJournal = new Request();
requestJournal.AppID = "c49b4e59-08dd-4f27-a53b-53cc72f169af";
//Response response;
int stIndex, EndIndex;
stIndex = journ.getNumberOfPapers() + 1;
EndIndex = journ.getNumberOfPapers() + 100;
requestJournal.ResultObjects = ObjectType.Publication;
requestJournal.JournalQuery = journalName;
//requestJournal.FulltextQuery = keywords;
requestJournal.StartIdx = Convert.ToUInt32(stIndex);
requestJournal.EndIdx = Convert.ToUInt32(EndIndex);
List<SG.Paper> papers = generatePaper(requestJournal, 100, journ.getNumberOfPapers());
for (int i = 0; i < papers.Count; i++)
{
journ.addPaper(papers[i]);
}
if (papers.Count < 100)
return false;
else
return true;
}
public bool? getAuthStatisticsNextPage(string authUrl, ref SG.Author author)
{
bool isOK = true;
setts = setRecords.ReadSettings();
int maxResults = setts.GSMaxResults;
int num = author.getNumberOfPapers();
if (num < 0) return false;
if (num % 100 != 0) return false;
if (num >= maxResults) return false;
authUrl += ("&pagesize=100&cstart=" + num);
GSAuthScraper authScraper = new GSAuthScraper(authUrl, num, ref isOK);
if (!isOK) return null;
List<SG.Paper> papers = authScraper.getPapersOfCurrentPage();
if (papers == null) return null;
if (papers.Count == 0) return false;
foreach (SG.Paper paper in papers)
{
if (num == maxResults) return false;
author.addPaper(paper);
num++;
}
return true;
}
public bool getAuthStatisticsNext(string authid, ref SG.Author auth)
{
Request requestPaper = new Request();
requestPaper.AppID = "c49b4e59-08dd-4f27-a53b-53cc72f169af";
int stIndex, EndIndex;
stIndex = auth.getNumberOfPapers() + 1;
EndIndex = auth.getNumberOfPapers() + 100;
requestPaper.ResultObjects = ObjectType.Publication;
requestPaper.AuthorID = Convert.ToUInt32(authid);
requestPaper.StartIdx = Convert.ToUInt32(stIndex);
requestPaper.EndIdx = Convert.ToUInt32(EndIndex);
List<SG.Paper> papers = generatePaper(requestPaper, 100, auth.getNumberOfPapers());
for (int i = 0; i < papers.Count; i++)
{
auth.addPaper(papers[i]);
}
if (papers.Count < 100)
return false;
else
return true;
}
// SEARCH PAGE RESULTS NEXT PAGE
public bool? getAuthorsNextPage(string this_url, ref SG.Author author, ref string next_url)
{
setts = setRecords.ReadSettings();
int maxResults = setts.GSMaxResults;
int num = author.getNumberOfPapers();
if (num >= maxResults) return false;
// CONNECTIONS
if (this_url == null) return false;
HtmlWeb web = new HtmlWeb();
try
{
doc = web.Load(this_url);
}
catch (Exception e) {
return null;
}
//Console.WriteLine(doc.DocumentNode.InnerHtml);
string xpath = "//div[@class=\"gs_ri\"]";
string title, titleLink, authors, publication, publisher, cited_by_url, summary;
int year, rank = author.getNumberOfPapers() + 1, no_of_citations;
HtmlNodeCollection searchResults = doc.DocumentNode.SelectNodes(xpath);
if (searchResults == null)
{
if (checkForCaptcha())
{
Console.WriteLine("Captcha problem ...");
return null;
}
Console.WriteLine("No results ...");
return false;
}
else
{
//Console.WriteLine(url);
foreach (HtmlNode n in searchResults)
{
// TITLE AND TITLE LINK
HtmlNode child = n.SelectSingleNode(".//*[@class=\"gs_rt\"]");
title = child.InnerText;
titleLink = "";
HtmlNode url_node = child.SelectSingleNode(".//a");
if (url_node != null)
{
titleLink = url_node.GetAttributeValue("href", "");
if (!titleLink.Equals(""))
{
//titleLink = "http://scholar.google.com" + titleLink;
titleLink = titleLink.Replace("amp;", "");
}
}
// AUTHORS AND PUBLICATION
child = n.SelectSingleNode(".//*[@class=\"gs_a\"]");
authors = "";
publication = "";
publisher = "";
year = 1970;
if (child != null)
{
string[] names = child.InnerText.Split('-');
if (names.Length == 1) authors = names[0];
else if (names.Length == 2)
{
authors = names[0];
bool flag = false;
names[1].Trim();
try { year = Convert.ToInt32(names[1]); }
catch (FormatException fe) { flag = true; }
if (flag)
{
string[] p = names[1].Split(',');
try { year = Convert.ToInt32(p[1]); }
catch (Exception e) { }
publication = p[0];
}
}
else
{
authors = names[0];
publisher = names[2];
bool flag = false;
names[1].Trim();
try { year = Convert.ToInt32(names[1]); }
catch (FormatException fe) { flag = true; }
if (flag)
{
string[] p = names[1].Split(',');
try { year = Convert.ToInt32(p[1]); }
catch (Exception e) { }
publication = p[0];
}
}
}
// SUMMARY
child = n.SelectSingleNode(".//*[@class=\"gs_rs\"]");
summary = "";
if (child != null)
{
summary = child.InnerText;
}
// CITATION STUFF
no_of_citations = 0;
cited_by_url = "";
child = n.SelectSingleNode(".//*[@class=\"gs_fl\"]");
if (child != null) child = child.FirstChild;
if (child != null)
{
string text = child.InnerText;
try
{
text = text.Replace("Cited by", "");
text = text.Trim();
no_of_citations = Convert.ToInt32(text);
}
catch (Exception e) { }
cited_by_url = no_of_citations != 0 ? child.GetAttributeValue("href", "") : "";
if (!cited_by_url.Equals(""))
{
cited_by_url = "http://scholar.google.com" + cited_by_url;
cited_by_url = cited_by_url.Replace("amp;", "");
}
}
publisher.Trim();
publication.Trim();
if (num == maxResults) return false;
SG.Paper paper = new SG.Paper(title, titleLink, authors, summary, year, publication, publisher, no_of_citations, cited_by_url, rank);
author.addPaper(paper);
num++;
rank++;
}
//NEXT PAGE URL
HtmlNode bottom = doc.DocumentNode.SelectSingleNode(".//*[@id=\"gs_n\"]//table//td[@align=\"left\"]//a");
if (bottom != null)
{
string url = bottom.GetAttributeValue("href", "");
if (!url.Equals(""))
{
url = "http://scholar.google.com" + url;
url = url.Replace("amp;", "");
next_url = url;
}
else next_url = null;
}
else next_url = null;
}
return true;
}
