mirror of git://gcc.gnu.org/git/gcc.git
119 lines
4.2 KiB
Java
119 lines
4.2 KiB
Java
/* DefaultActivationSystem.java -- Default RMI activation system
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.rmi.activation;
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import java.rmi.activation.ActivationSystem;
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import java.rmi.registry.LocateRegistry;
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import java.rmi.registry.Registry;
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/**
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* Finds and returns the default activation system for this jre.
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*
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* @author Audrius Meskauskas (audriusa@bioinformatics.org)
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*/
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public abstract class DefaultActivationSystem
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{
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/**
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* The activation system (assigned if once found).
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*/
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static ActivationSystem system;
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/**
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* The default activation registry port.
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*/
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static int ACTIVATION_REGISTRY_PORT;
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/**
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* The name of the activation system registry port property.
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*/
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static String AS_PORT_PROPERTY = "java.rmi.activation.port";
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/**
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* The defalut name of the activation system in the activation registry.
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*/
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static String ACTIVATION_SYSTEM_NAME = "java.rmi.activation.ActivationSystem";
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/**
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* Get the activation system, default for this jre. If no external activation
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* system exists, the internal activation system will be activated. This
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* internal system is limited in capabilities and should be used exclusively
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* for automated testing, to avoid necessity of starting rmi daemon during
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* testing process.
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*/
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public static ActivationSystem get()
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{
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if (system == null)
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try
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{
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// Obtain the port:
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String asr = System.getProperty("java.rmi.activation.port");
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if (asr != null)
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{
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try
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{
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ACTIVATION_REGISTRY_PORT = Integer.parseInt(asr);
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if (ACTIVATION_REGISTRY_PORT <= 0)
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throw new InternalError("Invalid " + asr + " value, "
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+ ACTIVATION_REGISTRY_PORT);
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}
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catch (NumberFormatException e)
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{
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throw new InternalError("Unable to parse " + asr
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+ " to integer");
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}
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}
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else
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ACTIVATION_REGISTRY_PORT = ActivationSystem.SYSTEM_PORT;
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// Expect the naming service running first.
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// The local host may want to use the shared registry
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Registry r = LocateRegistry.getRegistry(ACTIVATION_REGISTRY_PORT);
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ActivationSystem system = (ActivationSystem) r.lookup(ACTIVATION_SYSTEM_NAME);
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return system;
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}
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catch (Exception ex)
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{
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system = ActivationSystemTransient.getInstance();
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}
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return system;
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}
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}
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