J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | import java.rmi.*; |
| 25 | import java.rmi.server.*; |
| 26 | import java.util.*; |
| 27 | import java.io.*; |
| 28 | |
| 29 | |
| 30 | /** |
| 31 | * Server accepts agents and could test for validity. Acts as both a home |
| 32 | * server and a regular server. The agent will jump to this host and |
| 33 | * the server will create a thread and allow the agent to run inside of |
| 34 | * it. The agent just queries the system.properties for machine info. |
| 35 | */ |
| 36 | public class AgentServerImpl |
| 37 | extends UnicastRemoteObject |
| 38 | implements AgentServer |
| 39 | { |
| 40 | |
| 41 | /** |
| 42 | * Constructor |
| 43 | * |
| 44 | * @exception RemoteException If a network problem occurs. |
| 45 | */ |
| 46 | public AgentServerImpl() throws RemoteException { |
| 47 | // Could use to set up state of server |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Instantiates Agent Server Implementation and sets security |
| 52 | * manager |
| 53 | */ |
| 54 | public static void main(String args[]) { |
| 55 | |
| 56 | // Set the security Manager |
| 57 | //System.setSecurityManager(new MyRMISecurityManager()); |
| 58 | |
| 59 | try { |
| 60 | AgentServerImpl server = new AgentServerImpl(); |
| 61 | Naming.rebind("/AgentServer", server); |
| 62 | System.out.println("Ready to receive agents."); |
| 63 | System.err.println("DTI_DoneInitializing"); |
| 64 | } catch (Exception e) { |
| 65 | System.err.println("DTI_Error"); |
| 66 | System.err.println("Did not establish server"); |
| 67 | e.printStackTrace(); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Remote method called by Agent to have server accept it. |
| 73 | */ |
| 74 | public synchronized void accept(Agent agent) |
| 75 | throws RemoteException //, InvalidAgentException |
| 76 | { |
| 77 | Thread t; |
| 78 | |
| 79 | // Could check validity of agent here |
| 80 | // checkValid(agent); |
| 81 | |
| 82 | // Create new thread to run agent |
| 83 | t = new Thread(agent); |
| 84 | |
| 85 | System.out.println("Agent Accepted: " + t); |
| 86 | |
| 87 | // Start agent |
| 88 | t.start(); |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Remote method called by Agent to return to final server. |
| 93 | */ |
| 94 | public synchronized void returnHome(Agent agent) |
| 95 | throws RemoteException //, InvalidAgentException |
| 96 | { |
| 97 | Enumeration info = null; |
| 98 | boolean bErrorsOccurred = false; |
| 99 | |
| 100 | // Could check validity of agent here |
| 101 | // checkValid(agent); |
| 102 | |
| 103 | // Grab and print collected info from agent |
| 104 | info = agent.getInfo().elements(); |
| 105 | System.out.println("Collected information:"); |
| 106 | while (info.hasMoreElements()) { |
| 107 | System.out.println(" " + (String) info.nextElement()); |
| 108 | } |
| 109 | |
| 110 | System.out.println("\nErrors:"); |
| 111 | System.out.println(agent.getErrors()); |
| 112 | if(!(agent.getErrors()).equals("")) |
| 113 | bErrorsOccurred = true; |
| 114 | |
| 115 | if(bErrorsOccurred) |
| 116 | { |
| 117 | System.err.println("DTI_Error"); |
| 118 | System.err.println("DTI_DoneExecuting"); |
| 119 | } |
| 120 | else |
| 121 | { |
| 122 | System.err.println("DTI_DoneExecuting"); |
| 123 | } |
| 124 | |
| 125 | } |
| 126 | } |