1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
package main;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.File;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONException;
import org.json.JSONObject;
/**
*
* @author s129778
*/
public class Post implements Runnable{
Thread runner;
JSONObject tweet;
JSONObject twuser;
Connection con = null;
Statement st = null;
ResultSet rs = null;
PreparedStatement pst = null;
String url = "jdbc:postgresql://131.155.240.72:5432/Twitter";
String user = "postgres";
String password = "2IOC02";
public Post() {
}
public void start(){
runner.start();
}
public Post(JSONObject tweet, JSONObject user) {
//create new tread
runner = new Thread(this, "post");
this.twuser = user;
this.tweet = tweet;
}
public void run() {
try {
con = DriverManager.getConnection(url, user, password);
st = con.createStatement();
rs = st.executeQuery("SELECT VERSION()");
//st.executeUpdate("CREATE TABLE name (ID INT)");
//st.executeUpdate("DROP TABLE name");
//st.executeQuery("SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity WHERE pg_stat_activity.datname = 'name' AND pid <> pg_backend_pid();");
//st.executeUpdate("DROP DATABASE name");
//st.executeUpdate("CREATE ROLE joe2 PASSWORD 'ok' SUPERUSER CREATEDB CREATEROLE INHERIT LOGIN;");
//select query
String query = "SELECT * FROM tweet WHERE tweetid<=9000000 ORDER BY tweetid";
pst = con.prepareStatement(query);
rs = pst.executeQuery();
//process select query
while ( rs.next() ) {
int id = rs.getInt("tweetid");
System.out.println( "ID = " + id );
System.out.println (rs.getTimestamp("createdat"));
}
//insert query with check for existance
//for(int i=0;i<900000;i++){
String update = "INSERT INTO tweet (tweetid,createdat,favcount,retweetcount,text) SELECT ? , ? ,?,?, ? WHERE NOT EXISTS (SELECT * FROM tweet WHERE tweetid= ? )";
pst = con.prepareStatement(update);
pst.setLong(1, tweet.getLong("id"));
pst.setString(2, tweet.getString("created_at"));
pst.setLong(3, tweet.getLong("favorite_count"));
pst.setLong(4, tweet.getLong("retweet_count"));
pst.setString(5, tweet.getString("text"));
pst.setLong(6, tweet.getLong("id"));
pst.executeUpdate();
update = "INSERT INTO ispostedby (tweetid,userid) SELECT ? , ? WHERE NOT EXISTS (SELECT * FROM ispostedby WHERE tweetid= ? )";
pst = con.prepareStatement(update);
pst.setLong(1, tweet.getLong("id"));
pst.setLong(2, twuser.getLong("id"));
pst.setLong(3, tweet.getLong("id"));
pst.executeUpdate();
//update = "INSERT INTO twitteruser (userid,displayname,timezone,tweetcount,followercount,followedcount,location,brand) Select 1";
update = "INSERT INTO twitteruser (userid,displayname,timezone,tweetcount,followercount,followedcount,location) SELECT ? ,? ,? ,? , ?, ? ,? WHERE NOT EXISTS (SELECT * FROM twitteruser WHERE userid= ? )";
pst = con.prepareStatement(update);
pst.setLong(1, twuser.getLong("id"));
pst.setString(2, twuser.getString("name"));
pst.setString(3, twuser.getString("time_zone"));
pst.setLong(4, twuser.getLong("statuses_count"));
pst.setLong(5, twuser.getLong("followers_count"));
pst.setLong(6, twuser.getLong("friends_count"));
pst.setString(7, twuser.getString("location"));
pst.setLong(8, twuser.getLong("id"));
pst.executeUpdate();
ArrayList<String> brands=getBrands();
for(String brand : brands){
update = "INSERT INTO likesbrand (userid,brand) SELECT ? , ? WHERE NOT EXISTS (SELECT * FROM likesbrand WHERE userid= ? AND brand = ?)";
pst = con.prepareStatement(update);
pst.setLong(1, twuser.getLong("id"));
pst.setString(2, brand);
pst.setLong(3, twuser.getLong("id"));
pst.setString(4, brand);
pst.executeUpdate();
}
//}
//update
//pst = con.prepareStatement("UPDATE tweet set text = 'j' where tweetid=1;");
//pst.executeUpdate();
//delete
//pst = con.prepareStatement("DELETE from tweet where tweetid=1;");
//pst.executeUpdate();
} catch (JSONException ex) {
Logger.getLogger(Post.class.getName()).log(Level.SEVERE, null, ex);
} catch (SQLException ex) {
Logger lgr = Logger.getLogger(Main.class.getName());
lgr.log(Level.SEVERE, ex.getMessage(), ex);
} finally {
try {
if (rs != null) {
rs.close();
}
if (st != null) {
st.close();
}
if (con != null) {
con.close();
}
} catch (SQLException ex) {
Logger lgr = Logger.getLogger(Main.class.getName());
lgr.log(Level.WARNING, ex.getMessage(), ex);
}
}
}
ArrayList<String> getBrands(){
ArrayList<String> result= new ArrayList<String>();
String text=null;
try {
text = tweet.getString("text");
text = text.toLowerCase();
} catch (JSONException ex) {
Logger.getLogger(Post.class.getName()).log(Level.SEVERE, null, ex);
}
if(text.contains("samsung")||text.contains("galaxy")){
result.add("Samsung");
System.out.println("samsung");
} else {
result.add("geen");
System.out.println(text);
}
return result;
}
}
|
