| /* |
| * Copyright (c) 2004, 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. |
| * |
| * 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.jvm.hotspot; |
| |
| import java.io.*; |
| import java.net.*; |
| import java.rmi.*; |
| import java.rmi.registry.*; |
| import sun.jvm.hotspot.debugger.DebuggerException; |
| |
| public class RMIHelper { |
| private static final boolean startRegistry; |
| private static int port; |
| private static String serverNamePrefix; |
| |
| static { |
| String tmp = System.getProperty("sun.jvm.hotspot.rmi.startRegistry"); |
| if (tmp != null && tmp.equals("false")) { |
| startRegistry = false; |
| } else { |
| // by default, we attempt to start rmiregistry |
| startRegistry = true; |
| } |
| |
| port = Registry.REGISTRY_PORT; |
| tmp = System.getProperty("sun.jvm.hotspot.rmi.port"); |
| if (tmp != null) { |
| try { |
| port = Integer.parseInt(tmp); |
| } catch (NumberFormatException nfe) { |
| System.err.println("invalid port supplied, assuming default"); |
| } |
| } |
| |
| tmp = System.getProperty("sun.jvm.hotspot.rmi.serverNamePrefix"); |
| serverNamePrefix = (tmp != null)? serverNamePrefix : "SARemoteDebugger"; |
| } |
| |
| public static void rebind(String uniqueID, Remote object) throws DebuggerException { |
| String name = getName(uniqueID); |
| try { |
| Naming.rebind(name, object); |
| } catch (RemoteException re) { |
| if (startRegistry) { |
| // may be the user didn't start rmiregistry, try to start it |
| try { |
| LocateRegistry.createRegistry(port); |
| Naming.rebind(name, object); |
| } catch (Exception exp) { |
| throw new DebuggerException(exp); |
| } |
| } else { |
| throw new DebuggerException(re); |
| } |
| } catch (Exception exp) { |
| throw new DebuggerException(exp); |
| } |
| } |
| |
| public static void unbind(String uniqueID) throws DebuggerException { |
| String name = getName(uniqueID); |
| try { |
| Naming.unbind(name); |
| } catch (Exception exp) { |
| throw new DebuggerException(exp); |
| } |
| } |
| |
| public static Remote lookup(String debugServerID) throws DebuggerException { |
| // debugServerID follows the pattern [unique_id@]host[:port] |
| // we have to transform this as //host[:port]/<serverNamePrefix>['_'<unique_id>] |
| |
| int index = debugServerID.indexOf('@'); |
| StringBuffer nameBuf = new StringBuffer("//"); |
| String uniqueID = null; |
| if (index != -1) { |
| nameBuf.append(debugServerID.substring(index + 1)); |
| uniqueID = debugServerID.substring(0, index); |
| } else { |
| nameBuf.append(debugServerID); |
| } |
| |
| nameBuf.append('/'); |
| nameBuf.append(serverNamePrefix); |
| if (uniqueID != null) { |
| nameBuf.append('_'); |
| nameBuf.append(uniqueID); |
| } |
| |
| try { |
| return Naming.lookup(nameBuf.toString()); |
| } catch (Exception exp) { |
| throw new DebuggerException(exp); |
| } |
| } |
| |
| private static String getName(String uniqueID) { |
| String name = null; |
| if (uniqueID != null) { |
| name = serverNamePrefix + "_" + uniqueID; |
| } else { |
| name = serverNamePrefix; |
| } |
| if (port != Registry.REGISTRY_PORT) { |
| name = "//localhost:" + port + "/" + name; |
| } |
| return name; |
| } |
| } |