Dinner


1   /*====================================================================
2   
3   OpenCCM: The Open CORBA Component Model Platform
4   Copyright (C) 2000-2002 USTL - LIFL - GOAL
5   Contact: openccm-team@objectweb.org
6   
7   This library is free software; you can redistribute it and/or
8   modify it under the terms of the GNU Lesser General Public
9   License as published by the Free Software Foundation; either
10  version 2.1 of the License, or any later version.
11  
12  This library is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  Lesser General Public License for more details.
16  
17  You should have received a copy of the GNU Lesser General Public
18  License along with this library; if not, write to the Free Software
19  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
20  USA
21  
22  Initial developer(s): Philippe Merle, Sylvain Leblanc.
23  Contributor(s): Christophe Demarey, Christophe Contreras.
24  
25  ====================================================================*/
26  
27  package DiningPhilosophers.cif;
28  
29  import DiningPhilosophers.*;
30  
31  /**
32   * The philosopher dinner application deployment.
33   *
34   * <p>
35   * This application is composed of four philosopher 
36   * components, four fork manager components and one observer 
37   * component distributed on two servers. 
38   * These servers must be named "ComponentServer1" and "ComponentServer2". 
39   * The OpenCCM_plugins.jar archive must be 
40   * in the current directory and DinningPhilosophers.jar archive 
41   * must be in <code>./archives</code> directory.
42   * </p>
43   *
44   * @author <a HREF="mailto:Philippe.Merle@lifl.fr">Philippe Merle</a>
45   * @author <a HREF="mailto:Sylvain.Leblanc@lifl.fr">Sylvain Leblanc</a> 
46   * @author <a HREF="mailto:Christophe.Demarey@lifl.fr">Christophe Demarey</a>
47   *
48   * @version 2.0
49   */
50  
51  public class Dinner
52  {
53      /**
54       * The bootstrap of the dinner application.
55       */
56      public static void
57      main(String  [] args)
58      throws Exception  
59      {
60          String   _OTS = System.getProperties().getProperty("TRANSACTIONAL_PLUGIN","no").toLowerCase();
61  
62          // Init the ORB.
63          System.out.println("Initializing the ORB...");
64  
65          // TODO: Need to report this ORB.init() problem to OpenORB developers!
66          // Due to an OpenORB problem, the following lines:
67          //   org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args, null);
68          //   fr.lifl.goal.OpenCCM.Components.Runtime.init(orb);
69          // are replaced by the next line.
70  
71          // Init the OpenCCM Components Runtime.
72          org.omg.CORBA.ORB   orb =
73              org.objectweb.openccm.Components.Runtime.init(args);
74  
75          // Obtain the Name Service.
76          System.out.println("Obtaining the Name Service...");
77          org.omg.CORBA.Object   obj =
78              orb.resolve_initial_references("NameService");
79          org.omg.CosNaming.NamingContext   nc =
80              org.omg.CosNaming.NamingContextHelper.narrow(obj);
81  
82          org.omg.CosTransactions.Current current = null;
83          if (_OTS.equals("yes"))
84          {
85              System.out.println("Obtaining the Transaction Service...");
86              org.omg.CORBA.Object   objOTS = orb.resolve_initial_references("TransactionCurrent");
87              current = org.omg.CosTransactions.CurrentHelper.narrow( objOTS );
88          }
89  
90          try
91          {
92              if ((current!=null)&&(_OTS.equals("yes")))
93              {
94                  System.out.println("Beginning the transaction...");
95                  current.begin();
96              }
97  
98              // Obtain the component servers.
99              System.out.println("Obtaining Component Servers...");
100             org.omg.CosNaming.NameComponent  [] ncomp =
101                 new org.omg.CosNaming.NameComponent  [1];
102             ncomp[0] = new org.omg.CosNaming.NameComponent  ("ComponentServer1", "");
103             obj = nc.resolve(ncomp);
104             org.objectweb.openccm.Deployment.Server server1 =
105                 org.objectweb.openccm.Deployment.ServerHelper.narrow(obj);
106             ncomp[0].id = "ComponentServer2";
107             obj = nc.resolve(ncomp);
108             org.objectweb.openccm.Deployment.Server server2 =
109                 org.objectweb.openccm.Deployment.ServerHelper.narrow(obj);
110 
111             // Obtain the home factories and archive installators.
112             org.omg.Components.Deployment.ComponentServer server1_cs =
113                 server1.provide_component_server();
114             org.omg.Components.Deployment.ComponentInstallation server1_inst =
115                 server1.provide_install();
116             org.omg.Components.Deployment.ComponentServer server2_cs =
117                 server2.provide_component_server();
118             org.omg.Components.Deployment.ComponentInstallation server2_inst =
119                 server2.provide_install();
120             
121             // Install archives.
122             System.out.println("Installing archives...");
123             // get the current directory and store it as a String
124             String   demoPath = null;
125             try {
126                 demoPath = new java.io.File  (".").getCanonicalPath()+ java.io.File.separator ;
127             }catch(Exception   e) {
128                 e.printStackTrace();
129             }
130 
131             server1_inst.install("dinner","file:"+ demoPath + "./archives/DiningPhilosophers.jar");
132             server2_inst.install("dinner","file:"+ demoPath + "./archives/DiningPhilosophers.jar");
133 
134             // install some plugins already provided by OpenCCM.
135             server1_inst.install("openccm_plugins","file:"+ demoPath + "./archives/OpenCCM_Plugins.jar");
136             server2_inst.install("openccm_plugins","file:"+ demoPath + "./archives/OpenCCM_Plugins.jar");
137 
138             // declaring the container types
139             String   cont_config =
140                 "container = CONTAINER.container ; " +
141                 "config_home = container.create_system_home("+
142                  "\"openccm_plugins\", " +
143                 "\"EmptyConfig\", "+
144                 "\"org.objectweb.openccm.Containers.Plugins.EmptyConfigurationHome.create\") ;"+
145                 "config = config_home.create_component(JAVA.null) ;" +
146                 "container.create_system_home("+
147                 "\"openccm_plugins\", " +
148                 "\"EmptyCoordinatorHome\", "+
149                 "\"org.objectweb.openccm.Containers.Plugins.EmptyCoordinatorHome.create\") ;"+
150                 "container.create_system_home("+
151                 "\"openccm_plugins\", " +
152                 "\"EmptyControllerHome\", "+
153                 "\"org.objectweb.openccm.Containers.Plugins.EmptyControllerHome.create\") ;"+
154                 "container.set_container_configuration(config) ;";
155 
156             // instantiate a container on each server.
157             org.omg.Components.ConfigValue[] config = new org.omg.Components.ConfigValue[1];
158             config[0] = new org.objectweb.openccm.Components.ConfigValueImpl();
159             config[0].name = "container_script";
160             org.omg.CORBA.TypeCode   string_tc =
161                 org.objectweb.openccm.corba.TheORB.getORB().get_primitive_tc(org.omg.CORBA.TCKind.tk_string);
162             org.omg.CORBA.Any   value =
163                 org.objectweb.openccm.corba.TheDynamicAnyFactory.getFactory().
164                 create_dyn_any_from_type_code(string_tc).to_any();
165             value.insert_string(cont_config);
166             config[0].value = value;
167 
168 
169             org.omg.Components.Deployment.Container server1_cont =
170                 server1_cs.create_container(config);
171             org.omg.Components.Deployment.Container server2_cont =
172                 server2_cs.create_container(config);
173 
174             // Create homes.
175             System.out.println("Instantiating homes...");
176 
177             // define a container configuration.
178             java.lang.String   home_config =
179                 "container.set_home_configuration(container.get_container_configuration()) ;" +
180                 "container.set_component_configuration(container.get_container_configuration()) ;";
181 
182             config[0].name = "home_script";
183             value.insert_string(home_config);
184             config[0].value = value;
185 
186             // install homes with this container configuration.
187             org.omg.Components.CCMHome h =
188                     server1_cont.install_home("dinner",
189                                               "DiningPhilosophers.cif.PhilosopherHomeImpl.create_home",
190                                               config);
191             PhilosopherHome ph = PhilosopherHomeHelper.narrow(h);
192 
193             h = server2_cont.install_home("dinner",
194                                           "DiningPhilosophers.cif.ForkHomeImpl.create_home",
195                                           config);
196             ForkHome fh = ForkHomeHelper.narrow(h);
197             h = server2_cont.install_home("dinner",
198                                           "DiningPhilosophers.cif.ObserverHomeImpl.create_home",
199                                           config);
200             ObserverHome oh = ObserverHomeHelper.narrow(h);
201 
202             // Create components.
203             System.out.println("Creating components...");
204             Philosopher p1 = ph._new("Areski");
205             Philosopher p2 = ph._new("Christophe");
206             Philosopher p3 = ph._new("Philippe");
207             Philosopher p4 = ph._new("Sylvain");
208             ForkManager f1 = fh.create();
209             ForkManager f2 = fh.create();
210             ForkManager f3 = fh.create();
211             ForkManager f4 = fh.create();
212             Observer o = oh.create();
213 
214             // Configure components.
215             System.out.println("Configuring components...");
216 
217             // Connecting components.
218             System.out.println("Interconnecting components...");
219 
220             Fork fork = f1.provide_the_fork();
221             p1.connect_right(fork);
222             p2.connect_left(fork);
223 
224             fork = f2.provide_the_fork();
225             p2.connect_right(fork);
226             p3.connect_left(fork);
227 
228             fork = f3.provide_the_fork();
229             p3.connect_right(fork);
230             p4.connect_left(fork);
231 
232             fork = f4.provide_the_fork();
233             p4.connect_right(fork);
234             p1.connect_left(fork);
235 
236             StatusInfoConsumer consumer = o.get_consumer_info();
237             p1.subscribe_info(consumer);
238             p2.subscribe_info(consumer);
239             p3.subscribe_info(consumer);
240             p4.subscribe_info(consumer);
241 
242             // Configuration completion.
243             System.out.println("Configuration completion...");
244             f1.configuration_complete();
245             f2.configuration_complete();
246             f3.configuration_complete();
247             f4.configuration_complete();
248             o.configuration_complete();
249             p1.configuration_complete();
250             p2.configuration_complete();
251             p3.configuration_complete();
252             p4.configuration_complete();
253 
254         } catch (Exception   e) {
255             if ((current!=null)&&(_OTS.equals("yes")))
256             {
257                 System.out.println("Error during deployment :");
258                 e.printStackTrace();
259                 System.out.print("Rolling Back ... ");
260                 current.rollback();
261                 System.out.println("Done");
262                 // Force to exit.
263                 System.exit(0);
264             }
265         }
266 
267         if ((current!=null)&&(_OTS.equals("yes")))
268         {
269             System.out.print("Do you want to commit the Deployment ? [Y/n] ");
270 
271             java.io.BufferedReader   _buffer
272                 = new java.io.BufferedReader  (new java.io.InputStreamReader  (System.in));
273             char _answer = (char) _buffer.read();
274 
275             if ((_answer=='n')||(_answer=='N'))
276             {
277                 System.out.print("Rolling Back ... ");
278                 current.rollback();
279                 System.out.println("Done");
280             }  else {
281                 System.out.print("Committing ... ");
282                 current.commit(false);
283                 System.out.println("Done");
284             }
285         }
286 
287         System.exit(0);
288     }
289 }
290
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