/**
* requires a valid JStor Ticket ID
*
* @param query The search term to query JStor for.
* @param ticket JStor ticket
* @return cookie value of the key JSTORFetcher.COOKIE_CITATIONS. null if search is empty or
* ticket is invalid
* @throws IOException
*/
private String getCitations(String ticket, String query) throws IOException {
String urlQuery;
try {
urlQuery =
"http://www.jstor.org/search/BasicResults?hp="
+ JSTORFetcher.MAX_CITATIONS
+ "&si=1&gw=jtx&jtxsi=1&jcpsi=1&artsi=1&Query="
+ URLEncoder.encode(query, "UTF-8")
+ "&wc=on&citationAction=saveAll";
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
URL url = new URL(urlQuery);
URLConnection conn = url.openConnection();
conn.setRequestProperty("Cookie", ticket);
return JSTORFetcher.getCookie(JSTORFetcher.COOKIE_CITATIONS, conn);
}
/**
* @return a Jstor ticket ID
* @throws IOException
*/
private String openTicket() throws IOException {
URL url = new URL(JSTORFetcher.URL_TICKET);
URLConnection conn = url.openConnection();
return JSTORFetcher.getCookie(JSTORFetcher.COOKIE_TICKET, conn);
}