| /* |
| * Copyright (c) 1997, 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.rmi.server; |
| |
| import java.rmi.activation.ActivationGroupDesc; |
| import java.rmi.activation.ActivationGroupID; |
| import java.rmi.activation.ActivationGroup; |
| |
| /** |
| * This is the bootstrap code to start a VM executing an activation |
| * group. |
| * |
| * The activator spawns (as a child process) an activation group as needed |
| * and directs activation requests to the appropriate activation |
| * group. After spawning the VM, the activator passes some |
| * information to the bootstrap code via its stdin: |
| * <ul> |
| * <li> the activation group's id, |
| * <li> the activation group's descriptor (an instance of the class |
| * java.rmi.activation.ActivationGroupDesc) for the group, adn |
| * <li> the group's incarnation number. |
| * </ul><p> |
| * |
| * When the bootstrap VM starts executing, it reads group id and |
| * descriptor from its stdin so that it can create the activation |
| * group for the VM. |
| * |
| * @author Ann Wollrath |
| */ |
| public abstract class ActivationGroupInit |
| { |
| /** |
| * Main program to start a VM for an activation group. |
| */ |
| public static void main(String args[]) |
| { |
| try { |
| if (System.getSecurityManager() == null) { |
| System.setSecurityManager(new SecurityManager()); |
| } |
| // read group id, descriptor, and incarnation number from stdin |
| MarshalInputStream in = new MarshalInputStream(System.in); |
| ActivationGroupID id = (ActivationGroupID)in.readObject(); |
| ActivationGroupDesc desc = (ActivationGroupDesc)in.readObject(); |
| long incarnation = in.readLong(); |
| |
| // create and set group for the VM |
| ActivationGroup.createGroup(id, desc, incarnation); |
| } catch (Exception e) { |
| System.err.println("Exception in starting ActivationGroupInit:"); |
| e.printStackTrace(); |
| } finally { |
| try { |
| System.in.close(); |
| // note: system out/err shouldn't be closed |
| // since the parent may want to read them. |
| } catch (Exception ex) { |
| // ignore exceptions |
| } |
| } |
| } |
| } |