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 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			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	torben	705	protected String doLookup(String query) throws IOException {
52	torben	667
53	torben	659
54	torben	759	String key = "marketstats:" + query.replace(' ', '_');
55	torben	667	String response = (String) memcache.get(key);
56	torben	659
57			if (response == null) {
58	torben	705	response = doLookupWorker(query);
59	torben	667	memcache.set(key, TIMEOUT, response);
60	torben	659	response += "<!-- new lookup -->";
61			} else {
62			response += "<!-- from memcached -->";
63			}
64			return response;
65			}
66	torben	663
67	torben	756	private void loadComments(String appId, MarketSession session, ArrayList<CommentBean> commentBeans) {
68	torben	663	CommentCallback commentsCb = new CommentCallback();
69			commentsCb.setList( commentBeans );
70	torben	659
71	torben	756	session.setLocale( Locale.ROOT );
72	torben	663
73
74	torben	756
75	torben	663	int start = 0;
76			do {
77			int count = 10;
78			if (start > 0)
79			count = Math.min(10, commentsCb.getEntryCount() );
80
81	torben	757	//log.warning("count=" + count + " start=" + start + " entryCount=" + commentsCb.getEntryCount() );
82	torben	663	CommentsRequest commentsRequest = CommentsRequest.newBuilder()
83			.setAppId(appId)
84			.setStartIndex(start)
85			.setEntriesCount(count)
86			.build();
87
88			session.append(commentsRequest, commentsCb);
89			session.flush();
90			start +=10;
91
92	torben	757	if (start >= 200)
93	torben	663	break; //emergency brake
94
95			} while ( start < commentsCb.getEntryCount() );
96			}
97	torben	659
98	torben	663
99	torben	705	protected String doLookupWorker(String query) {
100	torben	659	final StringBuilder sb = new StringBuilder();
101
102
103			MarketSession session = new MarketSession();
104			session.login(login,password);
105
106	torben	662
107	torben	659	AppsRequest appsRequest = AppsRequest.newBuilder()
108	torben	705	.setQuery(query)
109	torben	659	.setStartIndex(0).setEntriesCount(10)
110			.setWithExtendedInfo(true)
111			.build();
112
113
114	torben	663	AppsCallback appsCb = new AppsCallback() ;
115			appsCb.setStringBuffer(sb);
116	torben	659
117	torben	662	ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>();
118	torben	659
119
120
121			session.append(appsRequest, appsCb);
122			session.flush();
123	torben	705
124			String appId = appsCb.getAppId();
125
126			if (appId != null) {
127	torben	662
128	torben	756	loadComments(appId, session, commentBeans);
129	torben	705
130			sb.append("-----------------------------------------------------------------\n");
131			for (CommentBean c : commentBeans) {
132	torben	756	sb.append("User: " + c.author + "\n");
133	torben	705	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			sb.append("Comments: " + commentBeans.size() + "\n");
140	torben	662	}
141	torben	705	sb.append("Cache.Timeout=" + TIMEOUT/60 + " minutes");
142	torben	662
143
144	torben	659	return sb.toString();
145			}
146
147			protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
148	torben	705	String query = request.getParameter("query");
149	torben	662
150	torben	660	response.setContentType("text/html");
151	torben	659	PrintWriter out = response.getWriter();
152	torben	758	out.print( "<html><body><pre>" + doLookup(query) + "</pre></body></html>" );
153	torben	659	}
154
155			}