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.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 query) throws IOException {
                

                String key = "marketstats:" + query.replace(' ', '_');
                String response = (String) memcache.get(key);

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

                session.setLocale( Locale.ROOT );
                
                
                int start = 0;
                do {
                        int count = 10;
                        if (start > 0)                          
                                count = Math.min(10, commentsCb.getEntryCount() );
                        
                        //log.warning("count=" + count + " start=" + start + " entryCount=" + commentsCb.getEntryCount() );
                        CommentsRequest commentsRequest = CommentsRequest.newBuilder()
                        .setAppId(appId)
                        .setStartIndex(start)
                        .setEntriesCount(count)
                        .build();
                        
                        session.append(commentsRequest, commentsCb);
                        session.flush();
                        start +=10;
                        
                        if (start >= 200)
                                break; //emergency brake
                        
                } while ( start < commentsCb.getEntryCount() );
        }


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


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


                AppsRequest appsRequest = AppsRequest.newBuilder()
                .setQuery(query)
                .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();
                
                String appId = appsCb.getAppId();
                
                if (appId != null) {

                        loadComments(appId, session, commentBeans);
        
                        sb.append("-----------------------------------------------------------------\n");
                        for (CommentBean c : commentBeans) {
                                sb.append("User: " + c.author + "\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() + "\n");
                }
                sb.append("Cache.Timeout=" + TIMEOUT/60 + " minutes");          


                return sb.toString();
        }

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

                response.setContentType("text/html");
                PrintWriter out = response.getWriter();
                out.print( "<html><body><pre>" + doLookup(query) + "</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	torben	659	import java.util.Date;
8			import java.util.Locale;
9			import java.util.logging.Logger;
10
11			import javax.servlet.ServletException;
12			import javax.servlet.http.HttpServlet;
13			import javax.servlet.http.HttpServletRequest;
14			import javax.servlet.http.HttpServletResponse;
15
16			import net.spy.memcached.MemcachedClient;
17
18			import com.gc.android.market.api.MarketSession;
19			import com.gc.android.market.api.model.Market.AppsRequest;
20			import com.gc.android.market.api.model.Market.CommentsRequest;
21
22
23	torben	664
24	torben	659	public class ShowStats extends HttpServlet {
25			private static final long serialVersionUID = 1L;
26
27	torben	662	final int TIMEOUT = 30*60;
28	torben	659	static final Logger log = Logger.getLogger(ShowStats.class.getName());
29
30			String login;
31			String password;
32	torben	667
33			MemcachedClient memcache = null;
34	torben	659
35
36			@Override
37			public void init() throws ServletException {
38			super.init();
39
40			login = getServletContext().getInitParameter("login");
41			password = getServletContext().getInitParameter("password");
42	torben	667
43			try {
44			memcache = new MemcachedClient(new InetSocketAddress("localhost", 11211));
45			} catch (IOException e) {
46			throw new ServletException(e);
47			}
48	torben	659	}
49
50	torben	705	protected String doLookup(String query) throws IOException {
51	torben	667
52	torben	659
53	torben	759	String key = "marketstats:" + query.replace(' ', '_');
54	torben	667	String response = (String) memcache.get(key);
55	torben	659
56			if (response == null) {
57	torben	705	response = doLookupWorker(query);
58	torben	667	memcache.set(key, TIMEOUT, response);
59	torben	659	response += "<!-- new lookup -->";
60			} else {
61			response += "<!-- from memcached -->";
62			}
63			return response;
64			}
65	torben	663
66	torben	756	private void loadComments(String appId, MarketSession session, ArrayList<CommentBean> commentBeans) {
67	torben	663	CommentCallback commentsCb = new CommentCallback();
68			commentsCb.setList( commentBeans );
69	torben	659
70	torben	756	session.setLocale( Locale.ROOT );
71	torben	663
72
73	torben	756
74	torben	663	int start = 0;
75			do {
76			int count = 10;
77			if (start > 0)
78			count = Math.min(10, commentsCb.getEntryCount() );
79
80	torben	757	//log.warning("count=" + count + " start=" + start + " entryCount=" + commentsCb.getEntryCount() );
81	torben	663	CommentsRequest commentsRequest = CommentsRequest.newBuilder()
82			.setAppId(appId)
83			.setStartIndex(start)
84			.setEntriesCount(count)
85			.build();
86
87			session.append(commentsRequest, commentsCb);
88			session.flush();
89			start +=10;
90
91	torben	757	if (start >= 200)
92	torben	663	break; //emergency brake
93
94			} while ( start < commentsCb.getEntryCount() );
95			}
96	torben	659
97	torben	663
98	torben	705	protected String doLookupWorker(String query) {
99	torben	659	final StringBuilder sb = new StringBuilder();
100
101
102			MarketSession session = new MarketSession();
103			session.login(login,password);
104
105	torben	662
106	torben	659	AppsRequest appsRequest = AppsRequest.newBuilder()
107	torben	705	.setQuery(query)
108	torben	659	.setStartIndex(0).setEntriesCount(10)
109			.setWithExtendedInfo(true)
110			.build();
111
112
113	torben	663	AppsCallback appsCb = new AppsCallback() ;
114			appsCb.setStringBuffer(sb);
115	torben	659
116	torben	662	ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>();
117	torben	659
118
119
120			session.append(appsRequest, appsCb);
121			session.flush();
122	torben	705
123			String appId = appsCb.getAppId();
124
125			if (appId != null) {
126	torben	662
127	torben	756	loadComments(appId, session, commentBeans);
128	torben	705
129			sb.append("-----------------------------------------------------------------\n");
130			for (CommentBean c : commentBeans) {
131	torben	756	sb.append("User: " + c.author + "\n");
132	torben	705	sb.append("Rating: " + c.rating + "\n");
133			sb.append("Time: " + new Date(c.time).toString() + "\n");
134			sb.append( c.text + "\n");
135			sb.append("\n");
136
137			}
138			sb.append("Comments: " + commentBeans.size() + "\n");
139	torben	662	}
140	torben	705	sb.append("Cache.Timeout=" + TIMEOUT/60 + " minutes");
141	torben	662
142
143	torben	659	return sb.toString();
144			}
145
146			protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
147	torben	705	String query = request.getParameter("query");
148	torben	662
149	torben	660	response.setContentType("text/html");
150	torben	659	PrintWriter out = response.getWriter();
151	torben	758	out.print( "<html><body><pre>" + doLookup(query) + "</pre></body></html>" );
152	torben	659	}
153
154			}