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package dk.thoerup.marketstats; |
package dk.thoerup.marketstats; |
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import java.io.IOException; |
import java.io.IOException; |
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import java.io.PrintWriter; |
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import java.net.InetSocketAddress; |
import java.net.InetSocketAddress; |
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import java.util.ArrayList; |
import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.Date; |
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import java.util.Locale; |
import java.util.Locale; |
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import java.util.concurrent.TimeUnit; |
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import java.util.logging.Logger; |
import java.util.logging.Logger; |
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import javax.servlet.ServletException; |
import javax.servlet.ServletException; |
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public class ShowStats extends HttpServlet { |
public class ShowStats extends HttpServlet { |
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private static final long serialVersionUID = 1L; |
private static final long serialVersionUID = 1L; |
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final int TIMEOUT = 30*60; |
static final int MAXCOMMENTS = 30; |
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static final int APP_TIMEOUT = 30*60; |
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static final int COMMENT_TIMEOUT = APP_TIMEOUT * 4; |
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static final Logger log = Logger.getLogger(ShowStats.class.getName()); |
static final Logger log = Logger.getLogger(ShowStats.class.getName()); |
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String login; |
String login; |
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String password; |
String password; |
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MemcachedClient memcache = null; |
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@Override |
@Override |
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login = getServletContext().getInitParameter("login"); |
login = getServletContext().getInitParameter("login"); |
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password = getServletContext().getInitParameter("password"); |
password = getServletContext().getInitParameter("password"); |
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try { |
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memcache = new MemcachedClient(new InetSocketAddress("localhost", 11211)); |
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} catch (IOException e) { |
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throw new ServletException(e); |
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} |
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} |
} |
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protected String doLookup(String appId) throws IOException { |
@Override |
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MemcachedClient c = new MemcachedClient(new InetSocketAddress("localhost", 11211)); |
public void destroy() { |
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super.destroy(); |
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memcache.shutdown(3, TimeUnit.SECONDS); |
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memcache = null; |
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} |
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protected AppBean lookupApp(String query) throws IOException { |
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String key = "marketstats:" + appId; |
String key = "marketstats:" + query.replace(' ', '_'); |
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String response = (String) c.get(key); |
//String response = (String) memcache.get(key); |
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AppBean response = (AppBean) memcache.get(key); |
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if (response == null) { |
if (response == null) { |
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response = doLookupWorker(appId); |
response = lookupAppWorker(query); |
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c.set(key, TIMEOUT, response); |
if (response != null) { |
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response += "<!-- new lookup -->"; |
memcache.set(key, APP_TIMEOUT, response); |
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} else { |
} |
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response += "<!-- from memcached -->"; |
} |
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} |
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return response; |
return response; |
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} |
} |
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protected AppBean lookupAppWorker(String query) { |
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MarketSession session = new MarketSession(); |
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session.login(login,password); |
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AppsRequest appsRequest = AppsRequest.newBuilder() |
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.setQuery(query) |
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.setStartIndex(0) |
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.setEntriesCount(1) |
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.setWithExtendedInfo(true) |
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.build(); |
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AppsCallback appsCb = new AppsCallback(); |
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session.append(appsRequest, appsCb); |
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session.flush(); |
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return appsCb.getResult(); |
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} |
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CommentsRequest buildCommentRequest(String appId, int start, int count) { |
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CommentsRequest commentsRequest = CommentsRequest.newBuilder() |
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.setAppId(appId) |
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.setStartIndex(start) |
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.setEntriesCount(count) |
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.build(); |
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return commentsRequest; |
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} |
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private void loadComments(String appId, MarketSession session, String locale, ArrayList<CommentBean> commentBeans) { |
private ArrayList<CommentBean> loadComments(String appId) { |
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ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>(); |
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MarketSession session = new MarketSession(); |
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session.login(login,password); |
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CommentCallback commentsCb = new CommentCallback(); |
CommentCallback commentsCb = new CommentCallback(); |
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commentsCb.setList( commentBeans ); |
commentsCb.setList( commentBeans ); |
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commentsCb.setLocale( locale ); |
session.setLocale( Locale.ROOT ); |
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session.setLocale( new Locale(locale) ); |
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int start = 0; |
int start = 0; |
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if (start > 0) |
if (start > 0) |
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count = Math.min(10, commentsCb.getEntryCount() ); |
count = Math.min(10, commentsCb.getEntryCount() ); |
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//log.warning("count=" + count + " start=" + start + " " + locale); |
//log.warning("count=" + count + " start=" + start + " entryCount=" + commentsCb.getEntryCount() ); |
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CommentsRequest commentsRequest = CommentsRequest.newBuilder() |
CommentsRequest commentsRequest = buildCommentRequest(appId,start,count); |
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.setAppId(appId) |
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.setStartIndex(start) |
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.setEntriesCount(count) |
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.build(); |
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session.append(commentsRequest, commentsCb); |
session.append(commentsRequest, commentsCb); |
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start +=10; |
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CommentsRequest commentsRequest2 = buildCommentRequest(appId,start,count); |
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session.append(commentsRequest2, commentsCb); |
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session.flush(); |
session.flush(); |
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start +=10; |
start +=10; |
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if (start >= 30) |
if (start >= MAXCOMMENTS) |
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break; //emergency brake |
break; //emergency brake |
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} while ( start < commentsCb.getEntryCount() ); |
} while ( start < commentsCb.getEntryCount() ); |
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return commentBeans; |
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} |
} |
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protected String doLookupWorker(String appId) { |
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final StringBuilder sb = new StringBuilder(); |
@SuppressWarnings("unchecked") |
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public ArrayList<CommentBean> getComments(AppBean app) { |
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String key = "marketstats:comments:" + app.getId(); |
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MarketSession session = new MarketSession(); |
ArrayList<CommentBean> comments = (ArrayList<CommentBean>) memcache.get(key); |
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session.login(login,password); |
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if (comments == null) { |
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comments = loadComments(app.getId()); |
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AppsRequest appsRequest = AppsRequest.newBuilder() |
memcache.set(key, COMMENT_TIMEOUT, comments); |
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.setAppId(appId) |
} |
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.setStartIndex(0).setEntriesCount(10) |
return comments; |
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.setWithExtendedInfo(true) |
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.build(); |
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AppsCallback appsCb = new AppsCallback() ; |
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appsCb.setStringBuffer(sb); |
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ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>(); |
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session.append(appsRequest, appsCb); |
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session.flush(); |
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loadComments(appId, session, "da", commentBeans); |
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loadComments(appId, session, "en", commentBeans); |
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Collections.sort(commentBeans); |
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sb.append("-----------------------------------------------------------------\n"); |
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for (CommentBean c : commentBeans) { |
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sb.append("User: " + c.author + " (" + c.locale + ")\n"); |
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sb.append("Rating: " + c.rating + "\n"); |
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sb.append("Time: " + new Date(c.time).toString() + "\n"); |
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sb.append( c.text + "\n"); |
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sb.append("\n"); |
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} |
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sb.append("Comments: " + commentBeans.size() ); |
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return sb.toString(); |
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} |
} |
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { |
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { |
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String appId = request.getParameter("appId"); |
String query = request.getParameter("query"); |
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response.setContentType("text/html"); |
AppBean app = lookupApp(query); |
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PrintWriter out = response.getWriter(); |
if (app != null) { |
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out.print( "<html><body><pre>" + doLookup(appId) + "</pre></body></html>" ); |
request.setAttribute("app", app); |
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ArrayList<CommentBean> comments = getComments(app); |
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request.setAttribute("comments", comments); |
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getServletContext().getRequestDispatcher("/statsview.jsp").forward(request, response); |
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} else { |
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response.getWriter().print("No app found with query=" + query); |
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} |
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} |
} |
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} |
} |