/*

 * 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

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 */

/*

 * @test

 * @bug 4969756

 * @summary Test that the same native library coming from the same jar file can

 * be loaded twice by two different MLets on the same JVM without conflict.

 * @author Luis-Miguel Alventosa

 *

 * @run clean LibraryLoaderTest

 * @run build LibraryLoaderTest

 * @run main/othervm LibraryLoaderTest

 */

import java.io.File;

import java.util.Set;

import javax.management.Attribute;

import javax.management.MBeanServer;

import javax.management.MBeanServerFactory;

import javax.management.ObjectInstance;

import javax.management.ObjectName;

import javax.management.ReflectionException;

public class LibraryLoaderTest {

    private static final String mletInfo[][] = {

        {"testDomain:type=MLet,index=0", "UseNativeLib0.html"},

        {"testDomain:type=MLet,index=1", "UseNativeLib1.html"}

    };

    public static void main(String args[]) throws Exception {

        String osName = System.getProperty("os.name");

        System.out.println("os.name=" + osName);

        String osArch = System.getProperty("os.arch");

        System.out.println("os.name=" + osArch);

        // Check for supported platforms:

        //

        // Solaris/SPARC and Windows/x86

        //

        if ((!(osName.equals("SunOS") && osArch.equals("sparc"))) &&

            (!(osName.startsWith("Windows") && osArch.equals("x86")))) {

            System.out.println(

              "This test runs only on Solaris/SPARC and Windows/x86 platforms");

            System.out.println("Bye! Bye!");

            return;

        }

        String libPath = System.getProperty("java.library.path");

        System.out.println("java.library.path=" + libPath);

        String testSrc = System.getProperty("test.src");

        System.out.println("test.src=" + testSrc);

        String workingDir = System.getProperty("user.dir");

        System.out.println("user.dir=" + workingDir);

        String urlCodebase;

        if (testSrc.startsWith("/")) {

            urlCodebase =

                "file:" + testSrc.replace(File.separatorChar, '/') + "/";

        } else {

            urlCodebase =

                "file:/" + testSrc.replace(File.separatorChar, '/') + "/";

        }

        // Create MBeanServer

        //

        MBeanServer server = MBeanServerFactory.newMBeanServer();

        // Create MLet instances and call getRandom on the loaded MBeans

        //

        for (int i = 0; i < mletInfo.length; i++) {

            // Create ObjectName for MLet

            //

            ObjectName mlet = new ObjectName(mletInfo[i][0]);

            server.createMBean("javax.management.loading.MLet", mlet);

            System.out.println("MLet = " + mlet);

            // Display old library directory and set it to test.classes

            //

            String libraryDirectory =

                (String) server.getAttribute(mlet, "LibraryDirectory");

            System.out.println("Old Library Directory = " +

                               libraryDirectory);

            Attribute attribute =

                new Attribute("LibraryDirectory", workingDir);

            server.setAttribute(mlet, attribute);

            libraryDirectory =

                (String) server.getAttribute(mlet, "LibraryDirectory");

            System.out.println("New Library Directory = " +

                               libraryDirectory);

            // Get MBeans from URL

            //

            String mletURL = urlCodebase + mletInfo[i][1];

            System.out.println("MLet URL = " + mletURL);

            Object[] params = new Object[] { mletURL };

            String[] signature = new String[] {"java.lang.String"};

            Object res[] = ((Set<?>) server.invoke(mlet,

                                                   "getMBeansFromURL",

                                                   params,

                                                   signature)).toArray();

            // Iterate through all the loaded MBeans

            //

            for (int j = 0; j < res.length; j++) {

                // Now ensure none of the returned objects is a Throwable

                //

                if (res[j] instanceof Throwable) {

                    ((Throwable) res[j]).printStackTrace(System.out);

                    throw new Exception("Failed to load the MBean #" + j

                        ,(Throwable)res[j]);

                }

                // On each of the loaded MBeans, try to invoke their

                // native operation

                //

                Object result = null;

                try {

                    ObjectName mbean =

                        ((ObjectInstance) res[j]).getObjectName();

                    result = server.getAttribute(mbean, "Random");

                    System.out.println("MBean #" + j + " = " + mbean);

                    System.out.println("Random number = " + result);

                } catch (ReflectionException e) {

                    e.getTargetException().printStackTrace(System.out);

                    throw new Exception ("A ReflectionException "

                            + "occured when attempting to invoke "

                            + "a native library based operation.",

                            e.getTargetException());

                }

            }

        }

    }

}