@GET
@Path("/getWordCloud/json/{fields}/{sources}/{keyword}")
@Produces(MediaType.APPLICATION_JSON)
public String getWordCloud(
@PathParam("keyword") String keyword,
@PathParam("fields") String fields,
@PathParam("sources") String sources) {
SolrDBManager db = new SolrDBManager();
JSONArray tfjson = null;
ArrayList<String> searchField = formSearchField(fields);
ArrayList<String> S = new ArrayList<String>();
if (sources.contains("video")) S.add("Video");
if (sources.contains("news")) S.add("NewsArticle");
try {
int maxNumOfWordsToDisplay =
Integer.parseInt(db.conf.getProperty("visualization_MaxWordCloudSize"));
int maxNumOfEvents = Integer.parseInt(db.conf.getProperty("visualization_MaxDocForClouds"));
StoryDistribution distr = db.getDistribution(keyword, S, searchField, maxNumOfEvents);
tfjson = distr.getTermFrequencies(maxNumOfWordsToDisplay);
System.out.println("Finish generating wordcloud");
} catch (Exception e) {
e.printStackTrace();
} finally {
}
return tfjson.toString();
}
@Override
protected ArrayList<String> parseMonthPageForDatesOnly(Document doc) {
ArrayList<String> dates = new ArrayList<String>();
String query = "div#content.mw-body div#bodyContent div#mw-content-text.mw-content-ltr";
for (int i = 1; i <= 31; i++) {
query = query + " div#" + i + "_May_2005";
Elements days = doc.select(query);
for (Element eachday : days) { // This will loop only once because it is the whole text
String actualDate = null;
String modifiedDate =
eachday.attr(
"id"); // This is essential to do because wikipedia present dates in weird manner
// and if we want to faciliate search using dates in our database then they
// should be present in this format YYYY-MM-DD
int firstoccur = modifiedDate.indexOf("_");
String year = modifiedDate.substring(firstoccur + 5, firstoccur + 9);
String day = modifiedDate.substring(0, 2).replace('_', ' ').trim();
if (day.length() == 1) {
day = "0" + day;
}
actualDate = year + "-05-" + day;
try {
Date.valueOf(actualDate);
dates.add(actualDate);
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
}
}
return dates;
}
@GET
@Path("/getNews/json/{fields}/{sources}/{keyword}")
@Produces(MediaType.APPLICATION_JSON)
public List<Event> getNews(
@PathParam("keyword") String keyword,
@PathParam("fields") String fields,
@PathParam("sources") String sources) {
SolrDBManager db = new SolrDBManager();
List<Event> events = new ArrayList<Event>();
ArrayList<String> searchField = formSearchField(fields); // search field
// Debug
ArrayList<String> S = new ArrayList<String>();
if (sources.contains("video")) S.add("Video");
if (sources.contains("news")) S.add("NewsArticle");
try {
int maxNumOfEventsToDisplay =
Integer.parseInt(db.conf.getProperty("visualization_MaxTimelineSize"));
events = db.searchByKeyword(keyword, S, searchField, maxNumOfEventsToDisplay);
} catch (Exception e) {
e.printStackTrace();
}
return events;
}
protected ArrayList<Event> parseMonthPage(Document doc) {
ArrayList<Event> events = new ArrayList<Event>();
String query = "div#content.mw-body div#bodyContent div#mw-content-text.mw-content-ltr";
for (int i = 1; i <= 31; i++) {
query = query + " div#" + i + "_May_2005";
Elements days = doc.select(query);
for (Element eachday : days) { // This will loop only once because it is the whole text
String actualDate = null;
String modifiedDate =
eachday.attr(
"id"); // This is essential to do because wikipedia present dates in weird manner
// and if we want to faciliate search using dates in our database then they
// should be present in this format YYYY-MM-DD
int firstoccur = modifiedDate.indexOf("_");
String year = modifiedDate.substring(firstoccur + 5, firstoccur + 9);
String day = modifiedDate.substring(0, 2).replace('_', ' ').trim();
if (day.length() == 1) {
day = "0" + day;
}
actualDate = year + "-05-" + day;
try {
Date.valueOf(actualDate);
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
Elements individual = eachday.children();
for (Element dateplustext :
individual) { // This consists of alternate date and events (with or withour newsStory)
if (dateplustext.tagName().equals("ul")) {
// Complete news under a given date
Elements stories =
dateplustext
.children(); // This contains different stories (newsStory may be present or
// not)
for (Element li : stories) {
Elements uls =
li
.children(); // These are either <a> tags if it doesn't have a newsStory or it
// is <a> and <ul> tag if it contains a newsStory
boolean hasUL = false;
for (Element ul : uls) {
if (ul.tagName()
.equals("ul")) { // If li has ul then it implies that it contains a news story
hasUL = true; // news story is there
Node storyNode =
li.childNode(
0); // this the story .. it is used later at the end for each event
Elements eventsNodes =
ul
.children(); // Now we get inside the ul element which containd different
// li elements
for (Element eventNode : eventsNodes) { // Here we are picking one li
Event event = extractDescriptionAndLinks(eventNode);
try {
event.setDate(Date.valueOf(actualDate));
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
// News story
if (!storyNode.attr("title").isEmpty() && !storyNode.attr("href").isEmpty()) {
if (isValidWikiURL(storyNode.attr("href"))) {
Story story = new Story();
// story.setName(st.attr("title"));
story.setName(getEntityName(storyNode.attr("href")));
story.setWikipediaUrl(getEntityURL(storyNode.attr("href")));
event.setStory(story);
}
}
events.add(event);
}
}
}
if (!hasUL) { // event does not have a story
Event event = extractDescriptionAndLinks(li);
try {
event.setDate(Date.valueOf(actualDate));
} catch (Exception ex) {
ex.printStackTrace();
System.err.println("ERROR: date format is wrong!!!! date = " + actualDate);
continue;
}
events.add(event);
}
}
}
}
}
}
return events;
}
