thoerup/marketstats/ShowStats.java

package dk.thoerup.marketstats;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.Locale;
import java.util.logging.Logger;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.spy.memcached.MemcachedClient;

import com.gc.android.market.api.MarketSession;
import com.gc.android.market.api.model.Market.AppsRequest;
import com.gc.android.market.api.model.Market.CommentsRequest;


public class ShowStats extends HttpServlet {
        private static final long serialVersionUID = 1L;

        final int TIMEOUT = 30*60;
        static final Logger log = Logger.getLogger(ShowStats.class.getName());

        String login;
        String password;
        
        MemcachedClient memcache = null;


        @Override
        public void init() throws ServletException {
                super.init();

                login = getServletContext().getInitParameter("login");
                password = getServletContext().getInitParameter("password");
                
                try {
                        memcache = new MemcachedClient(new InetSocketAddress("localhost", 11211));
                } catch (IOException e) {
                        throw new ServletException(e);
                }
        }

        protected String doLookup(String appId) throws IOException {
                

                String key = "marketstats:" + appId;
                String response = (String) memcache.get(key);

                if (response == null) {
                        response = doLookupWorker(appId);
                        memcache.set(key, TIMEOUT, response); 
                        response += "<!-- new lookup -->";
                } else {
                        response += "<!-- from memcached -->";
                }
                return response;
        }
        
        private void loadComments(String appId, MarketSession session, String locale, ArrayList<CommentBean> commentBeans) {            
                CommentCallback commentsCb = new CommentCallback();
                commentsCb.setList( commentBeans ); 

                commentsCb.setLocale( locale );
                session.setLocale( new Locale(locale) );
                
                
                int start = 0;
                do {
                        int count = 10;
                        if (start > 0)                          
                                count = Math.min(10, commentsCb.getEntryCount() );
                        
                        //log.warning("count=" + count + " start=" + start + " " + locale);
                        CommentsRequest commentsRequest = CommentsRequest.newBuilder()
                        .setAppId(appId)
                        .setStartIndex(start)
                        .setEntriesCount(count)
                        .build();
                        
                        session.append(commentsRequest, commentsCb);
                        session.flush();
                        start +=10;
                        
                        if (start >= 20)
                                break; //emergency brake
                        
                } while ( start < commentsCb.getEntryCount() );
        }


        protected String doLookupWorker(String appId) {
                final StringBuilder sb = new StringBuilder();


                MarketSession session = new MarketSession();
                session.login(login,password);


                AppsRequest appsRequest = AppsRequest.newBuilder()
                .setAppId(appId)
                .setStartIndex(0).setEntriesCount(10)
                .setWithExtendedInfo(true)
                .build();


                AppsCallback appsCb = new AppsCallback() ;
                appsCb.setStringBuffer(sb);

                ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>();


                session.append(appsRequest, appsCb);
                session.flush();

                loadComments(appId, session, "da", commentBeans);
                loadComments(appId, session, "en", commentBeans);

                Collections.sort(commentBeans);

                sb.append("-----------------------------------------------------------------\n");
                for (CommentBean c : commentBeans) {
                        sb.append("User: " + c.author + " ("  + c.locale + ")\n");
                        sb.append("Rating: " + c.rating + "\n");
                        sb.append("Time: " + new Date(c.time).toString() + "\n");
                        sb.append( c.text + "\n");
                        sb.append("\n");

                }
                sb.append("Comments: " + commentBeans.size() );


                return sb.toString();
        }

        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                String appId = request.getParameter("appId");

                response.setContentType("text/html");
                PrintWriter out = response.getWriter();
                out.print( "<html><body><pre>" + doLookup(appId) + "</pre></body></html>" );
        }

}
1	torben	659	package dk.thoerup.marketstats;
2
3			import java.io.IOException;
4			import java.io.PrintWriter;
5			import java.net.InetSocketAddress;
6	torben	662	import java.util.ArrayList;
7			import java.util.Collections;
8	torben	659	import java.util.Date;
9			import java.util.Locale;
10			import java.util.logging.Logger;
11
12			import javax.servlet.ServletException;
13			import javax.servlet.http.HttpServlet;
14			import javax.servlet.http.HttpServletRequest;
15			import javax.servlet.http.HttpServletResponse;
16
17			import net.spy.memcached.MemcachedClient;
18
19			import com.gc.android.market.api.MarketSession;
20			import com.gc.android.market.api.model.Market.AppsRequest;
21			import com.gc.android.market.api.model.Market.CommentsRequest;
22
23
24	torben	664
25	torben	659	public class ShowStats extends HttpServlet {
26			private static final long serialVersionUID = 1L;
27
28	torben	662	final int TIMEOUT = 30*60;
29	torben	659	static final Logger log = Logger.getLogger(ShowStats.class.getName());
30
31			String login;
32			String password;
33	torben	667
34			MemcachedClient memcache = null;
35	torben	659
36
37			@Override
38			public void init() throws ServletException {
39			super.init();
40
41			login = getServletContext().getInitParameter("login");
42			password = getServletContext().getInitParameter("password");
43	torben	667
44			try {
45			memcache = new MemcachedClient(new InetSocketAddress("localhost", 11211));
46			} catch (IOException e) {
47			throw new ServletException(e);
48			}
49	torben	659	}
50
51			protected String doLookup(String appId) throws IOException {
52	torben	667
53	torben	659
54	torben	662
55	torben	659	String key = "marketstats:" + appId;
56	torben	667	String response = (String) memcache.get(key);
57	torben	659
58			if (response == null) {
59			response = doLookupWorker(appId);
60	torben	667	memcache.set(key, TIMEOUT, response);
61	torben	659	response += "<!-- new lookup -->";
62			} else {
63			response += "<!-- from memcached -->";
64			}
65			return response;
66			}
67	torben	663
68			private void loadComments(String appId, MarketSession session, String locale, ArrayList<CommentBean> commentBeans) {
69			CommentCallback commentsCb = new CommentCallback();
70			commentsCb.setList( commentBeans );
71	torben	659
72	torben	663	commentsCb.setLocale( locale );
73			session.setLocale( new Locale(locale) );
74
75
76			int start = 0;
77			do {
78			int count = 10;
79			if (start > 0)
80			count = Math.min(10, commentsCb.getEntryCount() );
81
82	torben	664	//log.warning("count=" + count + " start=" + start + " " + locale);
83	torben	663	CommentsRequest commentsRequest = CommentsRequest.newBuilder()
84			.setAppId(appId)
85			.setStartIndex(start)
86			.setEntriesCount(count)
87			.build();
88
89			session.append(commentsRequest, commentsCb);
90			session.flush();
91			start +=10;
92
93	torben	666	if (start >= 20)
94	torben	663	break; //emergency brake
95
96			} while ( start < commentsCb.getEntryCount() );
97			}
98	torben	659
99	torben	663
100	torben	659	protected String doLookupWorker(String appId) {
101			final StringBuilder sb = new StringBuilder();
102
103
104			MarketSession session = new MarketSession();
105			session.login(login,password);
106
107	torben	662
108	torben	659	AppsRequest appsRequest = AppsRequest.newBuilder()
109			.setAppId(appId)
110			.setStartIndex(0).setEntriesCount(10)
111			.setWithExtendedInfo(true)
112			.build();
113
114
115	torben	663	AppsCallback appsCb = new AppsCallback() ;
116			appsCb.setStringBuffer(sb);
117	torben	659
118	torben	662	ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>();
119	torben	659
120
121
122			session.append(appsRequest, appsCb);
123			session.flush();
124	torben	662
125	torben	663	loadComments(appId, session, "da", commentBeans);
126			loadComments(appId, session, "en", commentBeans);
127	torben	659
128	torben	662	Collections.sort(commentBeans);
129
130			sb.append("-----------------------------------------------------------------\n");
131			for (CommentBean c : commentBeans) {
132			sb.append("User: " + c.author + " (" + c.locale + ")\n");
133			sb.append("Rating: " + c.rating + "\n");
134			sb.append("Time: " + new Date(c.time).toString() + "\n");
135			sb.append( c.text + "\n");
136			sb.append("\n");
137
138			}
139	torben	663	sb.append("Comments: " + commentBeans.size() );
140	torben	662
141
142	torben	659	return sb.toString();
143			}
144
145			protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
146			String appId = request.getParameter("appId");
147	torben	662
148	torben	660	response.setContentType("text/html");
149	torben	659	PrintWriter out = response.getWriter();
150	torben	660	out.print( "<html><body><pre>" + doLookup(appId) + "</pre></body></html>" );
151	torben	659	}
152
153			}