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package cgeo.geocaching.gcvote;
import cgeo.geocaching.Cache;
import cgeo.geocaching.Parameters;
import cgeo.geocaching.Settings;
import cgeo.geocaching.cgBase;
import cgeo.geocaching.cgCache;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.tuple.ImmutablePair;
import android.util.Log;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public final class GCVote {
private static final Pattern patternLogIn = Pattern.compile("loggedIn='([^']+)'", Pattern.CASE_INSENSITIVE);
private static final Pattern patternGuid = Pattern.compile("cacheId='([^']+)'", Pattern.CASE_INSENSITIVE);
private static final Pattern patternRating = Pattern.compile("voteAvg='([0-9.]+)'", Pattern.CASE_INSENSITIVE);
private static final Pattern patternVotes = Pattern.compile("voteCnt='([0-9]+)'", Pattern.CASE_INSENSITIVE);
private static final Pattern patternVote = Pattern.compile("voteUser='([0-9.]+)'", Pattern.CASE_INSENSITIVE);
private static final Pattern patternVoteElement = Pattern.compile("<vote ([^>]+)>", Pattern.CASE_INSENSITIVE);
private static final int MAX_CACHED_RATINGS = 1000;
private static Cache<String, GCVoteRating> ratingsCache = new Cache<String, GCVoteRating>(MAX_CACHED_RATINGS);
/**
* Get user rating for a given guid or geocode. For a guid first the ratings cache is checked
* before a request to gcvote.com is made.
*
* @param guid
* @param geocode
* @return
*/
public static GCVoteRating getRating(String guid, String geocode) {
List<String> guids = null;
List<String> geocodes = null;
if (StringUtils.isNotBlank(guid)) {
GCVoteRating rating = ratingsCache.get(guid);
if (rating != null) {
return rating;
}
guids = new ArrayList<String>();
guids.add(guid);
} else if (StringUtils.isNotBlank(geocode)) {
geocodes = new ArrayList<String>();
geocodes.add(geocode);
} else {
return null;
}
final Map<String, GCVoteRating> ratings = getRating(guids, geocodes);
if (ratings != null) {
for (Entry<String, GCVoteRating> entry : ratings.entrySet()) {
return entry.getValue();
}
}
return null;
}
/**
* Get user ratings from gcvote.com
*
* @param guids
* @param geocodes
* @return
*/
public static Map<String, GCVoteRating> getRating(List<String> guids, List<String> geocodes) {
if (guids == null && geocodes == null) {
return null;
}
final Map<String, GCVoteRating> ratings = new HashMap<String, GCVoteRating>();
try {
final Parameters params = new Parameters();
if (Settings.isLogin()) {
final ImmutablePair<String, String> login = Settings.getGCvoteLogin();
if (login != null) {
params.put("userName", login.left, "password", login.right);
}
}
if (guids != null && !guids.isEmpty()) {
params.put("cacheIds", StringUtils.join(guids.toArray(), ','));
} else {
params.put("waypoints", StringUtils.join(geocodes.toArray(), ','));
}
params.put("version", "cgeo");
final String page = cgBase.getResponseData(cgBase.request("http://gcvote.com/getVotes.php", params, false, false, false));
if (page == null) {
return null;
}
String voteData = null;
final Matcher matcherVoteElement = patternVoteElement.matcher(page);
while (matcherVoteElement.find()) {
voteData = matcherVoteElement.group(1);
if (voteData == null) {
continue;
}
String guid = null;
try {
final Matcher matcherGuid = patternGuid.matcher(voteData);
if (matcherGuid.find()) {
if (matcherGuid.groupCount() > 0) {
guid = matcherGuid.group(1);
}
}
} catch (Exception e) {
Log.w(Settings.tag, "cgBase.getRating: Failed to parse guid");
}
if (guid == null) {
continue;
}
boolean loggedIn = false;
try {
final Matcher matcherLoggedIn = patternLogIn.matcher(page);
if (matcherLoggedIn.find()) {
if (matcherLoggedIn.groupCount() > 0) {
if (matcherLoggedIn.group(1).equalsIgnoreCase("true")) {
loggedIn = true;
}
}
}
} catch (Exception e) {
Log.w(Settings.tag, "cgBase.getRating: Failed to parse loggedIn");
}
float rating = 0;
try {
final Matcher matcherRating = patternRating.matcher(voteData);
if (matcherRating.find()) {
rating = Float.parseFloat(matcherRating.group(1));
}
} catch (Exception e) {
Log.w(Settings.tag, "cgBase.getRating: Failed to parse rating");
}
if (rating <= 0) {
continue;
}
int votes = -1;
try {
final Matcher matcherVotes = patternVotes.matcher(voteData);
if (matcherVotes.find()) {
votes = Integer.parseInt(matcherVotes.group(1));
}
} catch (Exception e) {
Log.w(Settings.tag, "cgBase.getRating: Failed to parse vote count");
}
if (votes < 0) {
continue;
}
float myVote = 0;
if (loggedIn) {
try {
final Matcher matcherVote = patternVote.matcher(voteData);
if (matcherVote.find()) {
myVote = Float.parseFloat(matcherVote.group(1));
}
} catch (Exception e) {
Log.w(Settings.tag, "cgBase.getRating: Failed to parse user's vote");
}
}
if (StringUtils.isNotBlank(guid)) {
GCVoteRating gcvoteRating = new GCVoteRating(rating, votes, myVote);
ratings.put(guid, gcvoteRating);
ratingsCache.put(guid, gcvoteRating);
}
}
} catch (Exception e) {
Log.e(Settings.tag, "cgBase.getRating: " + e.toString());
}
return ratings;
}
/**
* Transmit user vote to gcvote.com
*
* @param cache
* @param vote
* @return
*/
public static boolean setRating(cgCache cache, double vote) {
if (!cache.supportsGCVote()) {
return false;
}
String guid = cache.getGuid();
if (StringUtils.isBlank(guid)) {
return false;
}
if (vote <= 0.0 || vote > 5.0) {
return false;
}
final ImmutablePair<String, String> login = Settings.getGCvoteLogin();
if (login == null) {
return false;
}
final Parameters params = new Parameters(
"userName", login.left,
"password", login.right,
"cacheId", guid,
"voteUser", String.format("%.1f", vote).replace(',', '.'),
"version", "cgeo");
final String result = cgBase.getResponseData(cgBase.request("http://gcvote.com/setVote.php", params, false, false, false));
return result.trim().equalsIgnoreCase("ok");
}
}
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