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Java example source code file (ModifyDescriptor.java)

This example Java source code file (ModifyDescriptor.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

activateme, activationdesc, activationexception, activationgroupdesc, activationid, exception, marshalledobject, message1, message2, modifydescriptor, properties, rmi, string, test1, test4a, util

The ModifyDescriptor.java Java example source code

/*
 * Copyright (c) 1998, 2012, 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.
 */

/* @test
 * @bug 4127754
 *
 * @summary synopsis: need to modify registered ActivationDesc and
 * ActivationGroupDesc
 * @author Ann Wollrath
 *
 * @library ../../../testlibrary
 * @build TestLibrary RMID ActivationLibrary
 *     ActivateMe ModifyDescriptor_Stub
 * @run main/othervm/policy=security.policy/timeout=240 ModifyDescriptor
 */

import java.io.*;
import java.rmi.*;
import java.rmi.activation.*;
import java.rmi.server.*;
import java.rmi.registry.*;
import java.util.*;

public class ModifyDescriptor
        implements ActivateMe, Runnable
{

    private ActivationID id;
    private String message;

    private static final String MESSAGE1 = "hello";
    private static final String MESSAGE2 = "hello, again";


    public ModifyDescriptor(ActivationID id, MarshalledObject mobj)
        throws ActivationException, RemoteException
    {
        this.id = id;
        Activatable.exportObject(this, id, 0);

        try {
            message = (String) mobj.get();
        } catch (Exception e) {
            System.err.println("unable to get message from marshalled object");
        }
    }

    public String getMessage() {
        return message;
    }

    public String getProperty(String name) {
        return TestLibrary.getProperty(name, null);
    }

    public ActivationID getID() {
        return id;
    }

    /**
     * Spawns a thread to deactivate the object.
     */
    public void shutdown() throws Exception
    {
        (new Thread(this,"ModifyDescriptor")).start();
    }

    /**
     * Thread to deactivate object. First attempts to make object
     * inactive (via the inactive method).  If that fails (the
     * object may still have pending/executing calls), then
     * unexport the object forcibly.
     */
    public void run() {
        ActivationLibrary.deactivate(this, getID());
    }

    public static void main(String[] args) {

        System.out.println("\nRegression test for bug 4127754\n");

        TestLibrary.suggestSecurityManager("java.rmi.RMISecurityManager");

        RMID rmid = null;

        try {
            RMID.removeLog();
            rmid = RMID.createRMID();
            rmid.start();

            /*
             * Create and register a group and activatable object
             */

            System.err.println("Creating group descriptor");
            Properties props = new Properties();
            props.put("java.security.policy",
                  TestParams.defaultGroupPolicy);
            props.put("java.security.manager",
                  TestParams.defaultSecurityManager);
            props.put("test.message", MESSAGE1);
            ActivationGroupDesc initialGroupDesc =
                new ActivationGroupDesc(props, null);
            System.err.println("Registering group");
            ActivationSystem system = ActivationGroup.getSystem();
            ActivationGroupID groupID = system.registerGroup(initialGroupDesc);

            System.err.println("Creating descriptor");
            ActivationDesc initialDesc =
                new ActivationDesc(groupID, "ModifyDescriptor", null,
                                   new MarshalledObject(MESSAGE1), false);

            System.err.println("Registering descriptor");
            ActivateMe obj = (ActivateMe) Activatable.register(initialDesc);

            /*
             * Ping object and verify that MarshalledObject is okay.
             */
            System.err.println("Ping object");
            String message1 = obj.getMessage();
            System.err.println("message = " + message1);

            if (message1.equals(MESSAGE1)) {
                System.err.println("Test1a passed: initial MarshalledObject " +
                                   "correct");
            } else {
                TestLibrary.bomb("Test1 failed: unexpected MarshalledObject passed to " +
                     "constructor", null);
            }

            /*
             * Get property from remote group and make sure it's okay
             */
            message1 = obj.getProperty("test.message");
            if (message1.equals(MESSAGE1)) {
                System.err.println("Test1b passed: initial group property " +
                                   "correct");
            } else {
                TestLibrary.bomb("Test1 failed: unexpected property passed to " +
                     "group", null);
            }

            /*
             * Update activation descriptor for object and group
             */
            System.err.println("Update activation descriptor");
            ActivationDesc newDesc =
                new ActivationDesc(groupID, "ModifyDescriptor", null,
                               new MarshalledObject(MESSAGE2), false);
            ActivationID id = obj.getID();
            ActivationDesc oldDesc = system.setActivationDesc(id, newDesc);

            if (oldDesc.equals(initialDesc)) {
                System.err.println("Test2a passed: desc returned from " +
                                   "setActivationDesc is okay");
            } else {
                TestLibrary.bomb("Test2a failed: desc returned from setActivationDesc " +
                     "is not the initial descriptor!", null);
            }


            Properties props2 = new Properties();
            props2.put("test.message", MESSAGE2);
            props2.put("java.security.policy",
                  TestParams.defaultGroupPolicy);
            props2.put("java.security.manager",
                  TestParams.defaultSecurityManager);
            ActivationGroupDesc newGroupDesc =
                new ActivationGroupDesc(props2, null);

            ActivationGroupDesc oldGroupDesc =
                system.setActivationGroupDesc(groupID, newGroupDesc);

            if (oldGroupDesc.equals(initialGroupDesc)) {
                System.err.println("Test2b passed: group desc returned from " +
                                   "setActivationGroupDesc is okay");
            } else {
                TestLibrary.bomb("Test2b failed: group desc returned from " +
                     "setActivationGroupDesc is not the initial descriptor!",
                     null);
            }

            /*
             * Restart rmid; and ping object to make sure that it has
             * new message.
             */
            rmid.restart();

            System.err.println("Ping object after restart");
            String message2 = obj.getMessage();

            if (message2.equals(MESSAGE2)) {
                System.err.println("Test3a passed: setActivationDesc takes " +
                                   "effect after a restart");
            } else {
                TestLibrary.bomb("Test3a failed: setActivationDesc did not take effect " +
                     "after a restart", null);
            }

            message2 = obj.getProperty("test.message");

            if (message2.equals(MESSAGE2)) {
                System.err.println("Test3b passed: setActivationGroupDesc " +
                                   "takes effect after a restart");
            } else {
                TestLibrary.bomb("Test3b failed: setActivationGroupDesc did not take " +
                     "effect after a restart", null);
            }

            System.err.println("Get activation descriptor");
            ActivationDesc latestDesc = system.getActivationDesc(id);

            if (latestDesc.equals(newDesc)) {
                System.err.println("Test4a passed: desc is same as latest");
            } else {
                TestLibrary.bomb("Test4a failed: there is no way this would happen", null);
            }

            System.err.println("Get activation group descriptor");
            ActivationGroupDesc latestGroupDesc =
                system.getActivationGroupDesc(groupID);

            if (latestGroupDesc.equals(newGroupDesc)) {
                System.err.println("Test4b passed: group desc is same as " +
                                   "latest");
            } else {
                TestLibrary.bomb("Test4b failed: there is no way this would happen", null);
            }

        } catch (Exception e) {
            TestLibrary.bomb("test failed", e);
        } finally {
            ActivationLibrary.rmidCleanup(rmid);
        }
    }
}

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