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
|
/****************************************************************************
* Copyright (c) 2004 Composent, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.server.generic;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.identity.IDCreateException;
import org.eclipse.ecf.core.identity.IDFactory;
import org.eclipse.ecf.core.sharedobject.ISharedObjectContainer;
import org.eclipse.ecf.discovery.ServiceInfo;
import org.eclipse.ecf.discovery.ServiceProperties;
import org.eclipse.ecf.discovery.identity.ServiceID;
import org.eclipse.ecf.discovery.service.IDiscoveryService;
import org.eclipse.ecf.internal.server.generic.Activator;
import org.eclipse.ecf.internal.server.generic.Messages;
import org.eclipse.ecf.provider.app.Connector;
import org.eclipse.ecf.provider.app.NamedGroup;
import org.eclipse.ecf.provider.app.ServerConfigParser;
import org.eclipse.ecf.provider.generic.SOContainerConfig;
import org.eclipse.ecf.provider.generic.TCPServerSOContainer;
import org.eclipse.ecf.provider.generic.TCPServerSOContainerGroup;
import org.eclipse.osgi.util.NLS;
public class ServerManager {
private static final String GROUP_PROPERTY_NAME = "group"; //$NON-NLS-1$
private static final String PWREQUIRED_PROPERTY_NAME = "pwrequired"; //$NON-NLS-1$
private static final String PROTOCOL_PROPERTY_NAME = "protocol"; //$NON-NLS-1$
private static final String SERVICE_TYPE = Messages.ServerManager_SERVICE_TYPE;
static TCPServerSOContainerGroup serverGroups[] = null;
static Map servers = new HashMap();
public static final String EXTENSION_POINT_NAME = "configuration"; //$NON-NLS-1$
public static final String EXTENSION_POINT = Activator.PLUGIN_ID + "." //$NON-NLS-1$
+ EXTENSION_POINT_NAME;
public static final String CONFIGURATION_ELEMENT = "configuration"; //$NON-NLS-1$
public static final String CONNECTOR_ELEMENT = "connector"; //$NON-NLS-1$
public static final String GROUP_ELEMENT = GROUP_PROPERTY_NAME;
public static final String HOSTNAME_ATTR = "hostname"; //$NON-NLS-1$
public static final String PORT_ATTR = "port"; //$NON-NLS-1$
public static final String KEEPALIVE_ATTR = "keepAlive"; //$NON-NLS-1$
public static final String NAME_ATTR = "name"; //$NON-NLS-1$
public static final String DISCOVERY_ATTR = "discovery"; //$NON-NLS-1$
public ServerManager() {
IExtensionRegistry reg = Activator.getDefault().getExtensionRegistry();
try {
if (reg != null) {
createServersFromExtensionRegistry(reg);
} else {
createServersFromConfigurationFile(Activator.getDefault()
.getBundle().getEntry(Messages.Activator_SERVER_XML)
.openStream());
}
} catch (Exception e) {
Activator.log(Messages.ServerStarter_EXCEPTION_CREATING_SERVER, e);
}
}
public synchronized ISharedObjectContainer getServer(ID id) {
if (id == null)
return null;
return (ISharedObjectContainer) servers.get(id);
}
private void createServersFromExtensionRegistry(IExtensionRegistry registry)
throws Exception {
IExtensionPoint extensionPoint = registry
.getExtensionPoint(EXTENSION_POINT);
if (extensionPoint == null)
return;
IConfigurationElement[] elements = extensionPoint
.getConfigurationElements();
List connectors = new ArrayList();
for (int i = 0; i < elements.length; i++) {
IConfigurationElement element = elements[i];
String portString = element.getAttribute(PORT_ATTR);
int port = TCPServerSOContainer.DEFAULT_PORT;
if (portString != null)
port = Integer.parseInt(portString);
int keepAlive = TCPServerSOContainer.DEFAULT_KEEPALIVE;
String keepAliveString = element.getAttribute(KEEPALIVE_ATTR);
if (keepAliveString != null)
keepAlive = Integer.parseInt(keepAliveString);
boolean discovery = false;
String discoveryString = element.getAttribute(DISCOVERY_ATTR);
if (discoveryString != null) discovery = Boolean.parseBoolean(discoveryString);
Connector connector = new Connector(null, element
.getAttribute(HOSTNAME_ATTR), port, keepAlive, discovery);
IConfigurationElement[] groupElements = element
.getChildren(GROUP_ELEMENT);
for (int j = 0; j < groupElements.length; j++) {
String groupName = groupElements[i].getAttribute(NAME_ATTR);
if (groupName != null)
connector.addGroup(new NamedGroup(groupName));
}
connectors.add(connector);
}
createServersFromConnectorList(connectors);
}
protected boolean isActive() {
return (servers.size() > 0);
}
public synchronized void closeServers() {
for (Iterator i = servers.keySet().iterator(); i.hasNext();) {
ID serverID = (ID) i.next();
TCPServerSOContainer server = (TCPServerSOContainer) servers
.get(serverID);
if (server != null) {
try {
server.dispose();
} catch (Exception e) {
Activator.log(
Messages.ServerStarter_EXCEPTION_DISPOSING_SERVER,
e); //$NON-NLS-1$
}
}
}
servers.clear();
if (serverGroups != null) {
for (int i = 0; i < serverGroups.length; i++) {
serverGroups[i].takeOffTheAir();
}
serverGroups = null;
}
}
private synchronized void createServersFromConnectorList(List connectors)
throws IDCreateException, IOException {
serverGroups = new TCPServerSOContainerGroup[connectors.size()];
int j = 0;
for (Iterator i = connectors.iterator(); i.hasNext();) {
Connector connect = (Connector) i.next();
serverGroups[j] = createServerGroup(connect);
List groups = connect.getGroups();
for (Iterator g = groups.iterator(); g.hasNext();) {
NamedGroup group = (NamedGroup) g.next();
TCPServerSOContainer cont = createServerContainer(group
.getIDForGroup(), serverGroups[j], group.getName(),
connect.getTimeout());
if (connect.shouldRegisterForDiscovery()) registerServerForDiscovery(group, false);
servers.put(cont.getID(), cont);
Activator.log(NLS.bind(Messages.ServerStarter_STARTING_SERVER,
cont.getID().getName())); //$NON-NLS-1$
}
serverGroups[j].putOnTheAir();
j++;
}
}
private void createServersFromConfigurationFile(InputStream ins)
throws Exception {
ServerConfigParser scp = new ServerConfigParser();
List connectors = scp.load(ins);
if (connectors != null)
createServersFromConnectorList(connectors);
}
private TCPServerSOContainerGroup createServerGroup(Connector connector) {
TCPServerSOContainerGroup group = new TCPServerSOContainerGroup(
connector.getHostname(), connector.getPort());
return group;
}
private TCPServerSOContainer createServerContainer(String id,
TCPServerSOContainerGroup group, String path, int keepAlive)
throws IDCreateException {
ID newServerID = IDFactory.getDefault().createStringID(id);
return new TCPServerSOContainer(new SOContainerConfig(newServerID),
group, path, keepAlive);
}
private void registerServerForDiscovery(NamedGroup group, boolean pwrequired) {
IDiscoveryService discovery = Activator.getDefault().getDiscovery();
if (discovery != null) {
discovery.registerServiceType(SERVICE_TYPE);
String rawGroupName = group.getRawName();
ServiceID serviceID = new ServiceID(SERVICE_TYPE,rawGroupName);
Connector connector = group.getConnector();
Properties props = new Properties();
props.put(PROTOCOL_PROPERTY_NAME,TCPServerSOContainer.DEFAULT_PROTOCOL);
props.put(PWREQUIRED_PROPERTY_NAME, new Boolean(pwrequired).toString());
props.put(GROUP_PROPERTY_NAME,rawGroupName);
try {
InetAddress host = InetAddress.getByName(connector.getHostname());
ServiceInfo svcInfo = new ServiceInfo(host, serviceID, connector.getPort(),
0, 0, new ServiceProperties(props));
discovery.registerService(svcInfo);
} catch (Exception e) {
Activator.log(Messages.ServerManager_EXCEPTION_DISCOVERY_REGISTRATION,e);
}
}
}
}
|
