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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
package com.juick.xmpp.s2s;
import com.juick.xmpp.Stanza;
import com.juick.xmpp.StanzaChild;
import com.juick.xmpp.extensions.JuickMessage;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import java.io.IOException;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author ugnich
*/
public class XMPPComponent implements ServletContextListener {
private static final Logger LOGGER = Logger.getLogger(XMPPComponent.class.getName());
public static final ExecutorService executorService = Executors.newCachedThreadPool();
public static String HOSTNAME = null;
public static String STATSFILE = null;
public static String keystore;
public static String keystorePassword;
public static ConnectionRouter connRouter;
static final List<ConnectionIn> inConnections = Collections.synchronizedList(new ArrayList<>());
static final List<ConnectionOut> outConnections = Collections.synchronizedList(new ArrayList<>());
static final List<CacheEntry> outCache = Collections.synchronizedList(new ArrayList<>());
static final Integer sqlSync = 0;
static java.sql.Connection sql;
final public static HashMap<String, StanzaChild> childParsers = new HashMap<>();
public static void addConnectionIn(ConnectionIn c) {
synchronized (inConnections) {
inConnections.add(c);
}
}
public static void addConnectionOut(ConnectionOut c) {
synchronized (outConnections) {
outConnections.add(c);
}
}
public static void removeConnectionIn(ConnectionIn c) {
synchronized (inConnections) {
inConnections.remove(c);
}
}
public static void removeConnectionOut(ConnectionOut c) {
synchronized (outConnections) {
outConnections.remove(c);
}
}
public static String getFromCache(String hostname) {
CacheEntry ret = null;
synchronized (outCache) {
for (Iterator<CacheEntry> i = outCache.iterator(); i.hasNext();) {
CacheEntry c = i.next();
if (c.hostname != null && c.hostname.equals(hostname)) {
ret = c;
i.remove();
break;
}
}
}
return (ret != null) ? ret.xml : null;
}
public static ConnectionOut getConnectionOut(String hostname, boolean needReady) {
synchronized (outConnections) {
for (ConnectionOut c : outConnections) {
if (c.to != null && c.to.equals(hostname) && (!needReady || c.streamReady)) {
return c;
}
}
}
return null;
}
public static ConnectionIn getConnectionIn(String streamID) {
synchronized (inConnections) {
for (ConnectionIn c : inConnections) {
if (c.streamID != null && c.streamID.equals(streamID)) {
return c;
}
}
}
return null;
}
public static void sendOut(Stanza s) throws Exception {
sendOut(s.to.Host, s.toString());
}
public static void sendOut(String hostname, String xml) throws Exception {
boolean haveAnyConn = false;
ConnectionOut connOut = null;
synchronized (outConnections) {
for (ConnectionOut c : outConnections) {
if (c.to != null && c.to.equals(hostname)) {
if (c.streamReady) {
connOut = c;
break;
} else {
haveAnyConn = true;
break;
}
}
}
}
if (connOut != null) {
try {
connOut.sendStanza(xml);
} catch (IOException e) {
LOGGER.warning("STREAM TO " + connOut.to + " " + connOut.streamID + " ERROR: " + e.toString());
}
return;
}
boolean haveCache = false;
synchronized (outCache) {
for (CacheEntry c : outCache) {
if (c.hostname != null && c.hostname.equals(hostname)) {
c.xml += xml;
c.tsUpdated = System.currentTimeMillis();
haveCache = true;
break;
}
}
if (!haveCache) {
outCache.add(new CacheEntry(hostname, xml));
}
}
if (!haveAnyConn) {
ConnectionOut connectionOut = new ConnectionOut(hostname);
XMPPComponent.executorService.submit(connectionOut);
}
}
@Override
public void contextInitialized(ServletContextEvent sce) {
LOGGER.info("component initialized");
executorService.submit(() -> {
Properties conf = new Properties();
try {
conf.load(sce.getServletContext().getResourceAsStream("WEB-INF/s2s.conf"));
HOSTNAME = conf.getProperty("hostname");
String componentName = conf.getProperty("componentname");
STATSFILE = conf.getProperty("statsfile");
keystore = conf.getProperty("keystore");
keystorePassword = conf.getProperty("keystore_password");
Class.forName("com.mysql.jdbc.Driver");
sql = DriverManager.getConnection("jdbc:mysql://localhost/juick?autoReconnect=true&user=" +
conf.getProperty("mysql_username", "") + "&password=" + conf.getProperty("mysql_password", ""));
childParsers.put(JuickMessage.XMLNS, new JuickMessage());
connRouter = new ConnectionRouter(componentName);
executorService.submit(connRouter);
executorService.submit(new ConnectionListener());
executorService.submit(new CleaningUp());
} catch (Exception e) {
LOGGER.log(Level.SEVERE, "XMPPComponent error", e);
}
});
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
synchronized (XMPPComponent.outConnections) {
for (Iterator<ConnectionOut> i = XMPPComponent.outConnections.iterator(); i.hasNext();) {
ConnectionOut c = i.next();
c.closeConnection();
i.remove();
}
}
synchronized (XMPPComponent.inConnections) {
for (Iterator<ConnectionIn> i = XMPPComponent.inConnections.iterator(); i.hasNext();) {
ConnectionIn c = i.next();
c.closeConnection();
i.remove();
}
}
XMPPComponent.connRouter.closeConnection();
synchronized (XMPPComponent.sqlSync) {
if (XMPPComponent.sql != null) {
try {
XMPPComponent.sql.close();
XMPPComponent.sql = null;
} catch (SQLException e) {
LOGGER.warning("SQL ERROR: " + e);
}
}
}
// Now deregister JDBC drivers in this context's ClassLoader:
// Get the webapp's ClassLoader
ClassLoader cl = Thread.currentThread().getContextClassLoader();
// Loop through all drivers
Enumeration<Driver> drivers = DriverManager.getDrivers();
while (drivers.hasMoreElements()) {
Driver driver = drivers.nextElement();
if (driver.getClass().getClassLoader() == cl) {
// This driver was registered by the webapp's ClassLoader, so deregister it:
try {
LOGGER.info(String.format("Deregistering JDBC driver %s", driver.toString()));
DriverManager.deregisterDriver(driver);
} catch (SQLException ex) {
LOGGER.log(Level.SEVERE, String.format("Error deregistering JDBC driver %s", driver), ex);
}
} else {
// driver was not registered by the webapp's ClassLoader and may be in use elsewhere
LOGGER.log(Level.SEVERE, String.format("Not deregistering JDBC driver %s as it does not belong to this webapp's ClassLoader", driver));
}
}
executorService.shutdown();
LOGGER.info("component destroyed");
}
}
|
