Merge pull request #195 from Doha2012/master

fix data collector

spring-security-oauth/pom.xml

@@ -185,7 +185,7 @@
             <artifactId>guava</artifactId>
             <version>${guava.version}</version>
         </dependency>
-
+        
         <!-- logging -->
 
         <dependency>

spring-security-oauth/src/main/java/org/baeldung/config/ServletInitializer.java

@@ -30,11 +30,9 @@ public class ServletInitializer extends AbstractDispatcherServletInitializer {
     @Override
     public void onStartup(ServletContext servletContext) throws ServletException {
         super.onStartup(servletContext);
-
         servletContext.addListener(new SessionListener());
         registerProxyFilter(servletContext, "oauth2ClientContextFilter");
         registerProxyFilter(servletContext, "springSecurityFilterChain");
-
     }
 
     private void registerProxyFilter(ServletContext servletContext, String name) {

spring-security-oauth/src/main/java/org/baeldung/config/SessionListener.java

@@ -3,6 +3,7 @@ package org.baeldung.config;
 import javax.servlet.http.HttpSessionEvent;
 import javax.servlet.http.HttpSessionListener;
 
+import org.baeldung.reddit.util.MyFeatures;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -13,6 +14,7 @@ public class SessionListener implements HttpSessionListener {
     public void sessionCreated(HttpSessionEvent event) {
         logger.info("==== Session is created ====");
         event.getSession().setMaxInactiveInterval(30 * 60);
+        event.getSession().setAttribute("PREDICTION_FEATURE", MyFeatures.PREDICTION_FEATURE);
     }
 
     @Override

spring-security-oauth/src/main/java/org/baeldung/reddit/classifier/RedditClassifier.java

@@ -3,6 +3,8 @@ package org.baeldung.reddit.classifier;
 import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
+import java.util.Calendar;
+import java.util.TimeZone;
 
 import org.apache.mahout.classifier.sgd.L2;
 import org.apache.mahout.classifier.sgd.OnlineLogisticRegression;
@@ -18,6 +20,7 @@ public class RedditClassifier {
 
     public static int GOOD = 0;
     public static int BAD = 1;
+    public static int MIN_SCORE = 5;
     private final OnlineLogisticRegression classifier;
     private final FeatureVectorEncoder titleEncoder;
     private final FeatureVectorEncoder domainEncoder;
@@ -44,7 +47,7 @@ public class RedditClassifier {
         }
 
         while ((line != null) && (line != "")) {
-            category = (line.startsWith("good")) ? GOOD : BAD;
+            category = extractCategory(line);
             trainCount[category]++;
             features = convertLineToVector(line);
             classifier.train(category, features);
@@ -76,7 +79,7 @@ public class RedditClassifier {
         Vector features;
         String line = reader.readLine();
         while ((line != null) && (line != "")) {
-            category = (line.startsWith("good")) ? GOOD : BAD;
+            category = extractCategory(line);
             evalCount[category]++;
             features = convertLineToVector(line);
             result = classify(features);
@@ -94,12 +97,21 @@ public class RedditClassifier {
     }
 
     // ==== private
+    private int extractCategory(String line) {
+        final int score = Integer.parseInt(line.substring(0, line.indexOf(';')));
+        return (score < MIN_SCORE) ? BAD : GOOD;
+    }
+
     private Vector convertLineToVector(String line) {
         final Vector features = new RandomAccessSparseVector(4);
         final String[] items = line.split(";");
+        final Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
+        cal.setTimeInMillis(Long.parseLong(items[1]) * 1000);
+        final int hour = cal.get(Calendar.HOUR_OF_DAY);
+
         titleEncoder.addToVector(items[3], features);
         domainEncoder.addToVector(items[4], features);
-        features.set(2, Integer.parseInt(items[1])); // hour of day
+        features.set(2, hour); // hour of day
         features.set(3, Integer.parseInt(items[2])); // number of words in the title
         return features;
     }

spring-security-oauth/src/main/java/org/baeldung/reddit/classifier/RedditDataCollector.java

@@ -2,9 +2,7 @@ package org.baeldung.reddit.classifier;
 
 import java.io.FileWriter;
 import java.io.IOException;
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Date;
 import java.util.List;
 
 import org.baeldung.reddit.util.UserAgentInterceptor;
@@ -20,57 +18,52 @@ import com.google.common.base.Splitter;
 public class RedditDataCollector {
     public static final String TRAINING_FILE = "src/main/resources/train.csv";
     public static final String TEST_FILE = "src/main/resources/test.csv";
+    public static final int LIMIT = 100;
+    public static final Long YEAR = 31536000L;
     private final Logger logger = LoggerFactory.getLogger(getClass());
 
-    private String postAfter;
+    private Long timestamp;
     private final RestTemplate restTemplate;
     private final String subreddit;
-    private final int minScore;
 
     public RedditDataCollector() {
         restTemplate = new RestTemplate();
         final List<ClientHttpRequestInterceptor> list = new ArrayList<ClientHttpRequestInterceptor>();
         list.add(new UserAgentInterceptor());
         restTemplate.setInterceptors(list);
-        subreddit = "all";
-        minScore = 4;
+        subreddit = "java";
     }
 
-    public RedditDataCollector(String subreddit, int minScore) {
+    public RedditDataCollector(String subreddit) {
         restTemplate = new RestTemplate();
         final List<ClientHttpRequestInterceptor> list = new ArrayList<ClientHttpRequestInterceptor>();
         list.add(new UserAgentInterceptor());
         restTemplate.setInterceptors(list);
         this.subreddit = subreddit;
-        this.minScore = minScore;
     }
 
     public void collectData() {
-        final int limit = 100;
         final int noOfRounds = 80;
+        timestamp = System.currentTimeMillis() / 1000;
         try {
             final FileWriter writer = new FileWriter(TRAINING_FILE);
             for (int i = 0; i < noOfRounds; i++) {
-                getPosts(limit, writer);
+                getPosts(writer);
             }
             writer.close();
 
             final FileWriter testWriter = new FileWriter(TEST_FILE);
-            getPosts(limit, testWriter);
+            getPosts(testWriter);
             testWriter.close();
         } catch (final Exception e) {
             logger.error("write to file error", e);
         }
     }
 
-    // ==== private
-
-    private void getPosts(int limit, FileWriter writer) {
-        String fullUrl = "http://www.reddit.com/r/" + subreddit + "/new.json?limit=" + limit;
-        if (postAfter != null) {
-            fullUrl += "&count=" + limit + "&after=" + postAfter;
-        }
+    // ==== Private
 
+    private void getPosts(FileWriter writer) {
+        final String fullUrl = "http://www.reddit.com/r/" + subreddit + "/search.json?sort=new&q=timestamp:" + (timestamp - YEAR) + ".." + timestamp + "&restrict_sr=on&syntax=cloudsearch&limit=" + LIMIT;
         try {
             final JsonNode node = restTemplate.getForObject(fullUrl, JsonNode.class);
             parseNode(node, writer);
@@ -82,22 +75,18 @@ public class RedditDataCollector {
     }
 
     private void parseNode(JsonNode node, FileWriter writer) throws IOException {
-        postAfter = node.get("data").get("after").asText();
-        System.out.println(postAfter);
         String line;
-        String category;
         List<String> words;
-        final SimpleDateFormat df = new SimpleDateFormat("HH");
+        int score;
         for (final JsonNode child : node.get("data").get("children")) {
-            category = (child.get("data").get("score").asInt() < minScore) ? "bad" : "good";
+            score = child.get("data").get("score").asInt();
             words = Splitter.onPattern("\\W").omitEmptyStrings().splitToList(child.get("data").get("title").asText());
-            final Date date = new Date(child.get("data").get("created_utc").asLong() * 1000);
+            timestamp = child.get("data").get("created_utc").asLong();
 
-            line = category + ";";
-            line += df.format(date) + ";";
+            line = score + ";";
+            line += timestamp + ";";
             line += words.size() + ";" + Joiner.on(' ').join(words) + ";";
             line += child.get("data").get("domain").asText() + "\n";
-
             writer.write(line);
         }
     }

spring-security-oauth/src/main/java/org/baeldung/reddit/util/MyFeatures.java

@@ -0,0 +1,17 @@
+package org.baeldung.reddit.util;
+
+public enum MyFeatures {
+
+    PREDICTION_FEATURE(false);
+
+    private boolean active;
+
+    private MyFeatures(boolean active) {
+        this.active = active;
+    }
+
+    public boolean isActive() {
+        return this.active;
+    }
+
+}

spring-security-oauth/src/main/resources/test.csv

@@ -1,100 +1,100 @@
-bad;20;5;The President s Kill List;newyorker.com
-bad;20;8;Home stretch for the Ancient History Magazine Kickstarter;kickstarter.com
-good;20;20;A constant Burn to disk link under right click menu but there s no optical drive on retina Macbook Pro;i.imgur.com
-bad;20;8;Grey s be creeping on the button like;gph.is
-good;20;16;Droid Life First look at Moto 360 s Gorgeous and Impossible to Find Monolink Metal Band;droid-life.com
-bad;20;23;US Bleeding Hollow lt Unspoken gt has a couple spots open for our core team 3 7 M HM 10 10 H BRF;self.wowguilds
-bad;20;30;I drove up to Orlando for nothing I m by the science center What s some stuff I can do for cheap free so I don t waste my day;self.orlando
-bad;20;20;As we make computers more intelligent they ll eventually gain consciousness Then evolution would ve led to silicon based life;self.Showerthoughts
-bad;20;5;i am jealous and miserable;self.SuicideWatch
-bad;20;29;TIL that in addition to the recent gyrocopter landing the last person to land a helicopter on the White House or U S Capital lawn was also a Floridian;reddit.com
-good;20;7;When we finally arrived at Comic Con;i.imgur.com
-good;20;22;Just got a call that my OBGYN is out on an emergency for the next week I m being induced this Saturday;self.BabyBumps
-good;20;10;Scientists discover intense magnetic field close to supermassive black hole;sciencedaily.com
-bad;20;2;W ow;fap.to
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-bad;20;38;This video reminds me of the hype in this sub for a Fallout 4 in New York Even though the style is a bit WAY off Most of the characters are a bit similar to the Fallout series;youtube.com
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-bad;20;2;Francia Expansions;self.HistoricalWorldPowers
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-bad;20;7;Launcher stops working when signing in HELP;self.GTAV
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-bad;20;5;No username in login screen;self.techsupport
-good;20;7;Ads for the upcoming election in Alberta;youtube.com
-bad;20;11;Michael Savage Hillary Clinton s Looks Alone Could Sink The Campaign;rightwingwatch.org
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-good;20;15;Toss this into your old 1 4 7 based packs to improve falling block rendering;minecraftforum.net
-good;20;13;StreetPass Thank You Bundle takes EXTRA 1 off the new Mii Plaza games;technologytell.com
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-good;20;5;request Will Photoshop For Pizza;self.RandomActsOfPizza
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+0;1356633508;4;A good android game;self.java
+4;1356631759;12;a java library i saw mentioned here can t find pls help;self.java
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+0;1355775350;6;someone may help me out here;stackoverflow.com
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+0;1355749586;12;Newbie here can you explain to me what class private stack is;self.java
+0;1355748318;4;When StackOverflow Goes Bad;blogs.windward.net
+0;1355721981;4;Java Graphics Projectile HELP;self.java
+0;1355719622;12;Which one of the following statements about object oriented programming is false;self.java
+16;1355707814;8;What s the skinny on JavaFX these days;self.java
+2;1355685929;20;Can someone explain exactly what Apache Ant is How does it differ from just creating a jar file in blueJ;self.java
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+7;1355613608;6;Java Version of Jarvis Must Haves;self.java
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+7;1355597483;13;I m working on a text based RPG and I have some questions;self.java
+2;1355574445;6;Java EE 7 Community Survey Results;blog.eisele.net
+0;1355576629;4;Evolution of Java Technology;compilr.org
+18;1355574828;10;Are your Garbage Collection Logs speaking to you Censum does;blog.eisele.net
+10;1355559380;13;What is the best GUI tool for creating a 2d platformer in Java;self.java
+0;1355555357;7;Hit me with your best arrays tutorial;self.java
+10;1355542403;11;Does any one know of clean 2d graphics library for java;self.java
+23;1355511507;9;Dark Juno A Dark UI Theme for Eclipse 4;rogerdudler.github.com
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+0;1355501999;9;How do you make use of your Java knowledge;self.java
+1;1355492027;5;How ClassLoader works in Java;javarevisited.blogspot.com.au
+0;1355489352;9;Main difference between Abstract Class and Interface Compilr org;compilr.org
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+0;1355391115;4;console input like craftbukkit;self.java
+7;1355390023;8;Hosting suggestions needed for a java web app;self.java
+6;1355359227;17;Java novice here Have noticed funny performance differences across laptop and desktop Nvidia optimus related Details inside;self.java
+1;1355327090;18;Please advice which java server technology should I choose for this new web app in my new work;self.java
+0;1355326137;6;code to convert digits into words;compilr.org
+34;1355319442;7;I want to learn REAL WORLD Java;self.java
+5;1355285442;3;Hiring Java Developers;self.java
+0;1355282335;14;Help How can I count the amount of a specific integer in an ArrayList;self.java
+1;1355272303;24;I m taking a Java 1 final tomorrow I m fairly confident but I would appreciate any tips on things to look out for;self.java
+38;1355267143;6;Will Java become the next COBOL;self.java
+0;1355263047;2;Understanding recursion;imgur.com
+1;1355257558;15;How can I clear the command prompt terminal with java and make it cross platform;self.java
+2;1355253849;18;Is there a strategy for reducing code clutter when you are printing to the terminal alot Beginner Programmer;self.java
+1;1355253049;5;BlockingQueues and multiple producer threads;self.java
+1;1355241441;6;Beginner Struggling with classes Need help;self.java
+0;1355238089;8;Simple Steps to Merge PDF files using Java;compilr.org
+23;1355236940;8;Java and vs Python within a business context;self.java

spring-security-oauth/src/main/webapp/WEB-INF/jsp/submissionForm.jsp

@@ -80,6 +80,7 @@ border-color: #ddd;
    </div>
 </form>
 <div>
+<c:if test="${PREDICTION_FEATURE.isActive()}">
 <button id="checkbtn" class="btn btn-default disabled" onclick="predicateResponse()">Predicate Response</button>
 <span id="prediction"></span>
 
@@ -104,6 +105,7 @@ function predicateResponse(){
     });
 }
 </script>
+</c:if>
 </div>
 </div>
 </body>

spring-security-oauth/src/test/java/org/baeldung/persistence/PersistenceJPATest.java

@@ -56,6 +56,8 @@ public class PersistenceJPATest {
         alreadySentPost.setSent(true);
         alreadySentPost.setSubmissionDate(dateFormat.parse("2015-03-03 10:30"));
         alreadySentPost.setUser(userJohn);
+        alreadySentPost.setSubreddit("funny");
+        alreadySentPost.setUrl("www.example.com");
         postRepository.save(alreadySentPost);
 
         notSentYetOld = new Post();
@@ -63,6 +65,8 @@ public class PersistenceJPATest {
         notSentYetOld.setSent(false);
         notSentYetOld.setSubmissionDate(dateFormat.parse("2015-03-03 11:00"));
         notSentYetOld.setUser(userTom);
+        notSentYetOld.setSubreddit("funny");
+        notSentYetOld.setUrl("www.example.com");
         postRepository.save(notSentYetOld);
 
         notSentYet = new Post();
@@ -70,6 +74,8 @@ public class PersistenceJPATest {
         notSentYet.setSent(false);
         notSentYet.setSubmissionDate(dateFormat.parse("2015-03-03 11:30"));
         notSentYet.setUser(userJohn);
+        notSentYet.setSubreddit("funny");
+        notSentYet.setUrl("www.example.com");
         postRepository.save(notSentYet);
     }