/*

 * Copyright (c) 2008, 2018, 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

 *

 * @summary converted from VM Testbase nsk/aod/AttachProvider/AttachProvider02.

 * VM Testbase keywords: [feature_282, jdk]

 * VM Testbase readme:

 * Description :

 *     Test checks work of Attach API (com.sun.tools.attach).

 *     Test is based on the nsk.share.aod framework.

 *     This test tries to attach to the VM started by this test using 2 methods:

 *         - AttachProvider.attachVirtualMachine(String id)

 *         - AttachProvider.attachVirtualMachine(VirtualMachineDescriptor vmd)

 *     After attaching test tries to use created VirtualMachine object (tries to call VirtualMachine.getSystemProperties()).

 *

 * @library /vmTestbase /test/hotspot/jtreg/vmTestbase

 *          /test/lib

 * @run driver jdk.test.lib.FileInstaller . .

 * @build nsk.aod.AttachProvider.AttachProvider02.AttachProvider02

 *        nsk.share.aod.DummyTargetApplication

 * @run main/othervm -Djdk.attach.allowAttachSelf -XX:+UsePerfData

 *      PropertyResolvingWrapper

 *      nsk.aod.AttachProvider.AttachProvider02.AttachProvider02

 *      -jdk ${test.jdk}

 *      "-javaOpts=-XX:+UsePerfData ${test.vm.opts} ${test.java.opts}"

 *      -target nsk.share.aod.DummyTargetApplication

 */

package nsk.aod.AttachProvider.AttachProvider02;

import java.util.Properties;

import com.sun.tools.attach.*;

import com.sun.tools.attach.spi.AttachProvider;

import nsk.share.aod.*;

import nsk.share.test.TestUtils;

/*

 * Test checks following methods:

 *      - AttachProvider.attachVirtualMachine(String id)

 *      - AttachProvider.attachVirtualMachine(VirtualMachineDescriptor vmd)

 */

public class AttachProvider02 extends AODTestRunner {

    public AttachProvider02(String[] args) {

        super(args);

    }

    public void doTestActions(String targetVMId) throws Throwable {

        TestUtils.assertTrue(AttachProvider.providers().size() > 0, "Method AttachProvider.providers() returns empty collection");

        String currentVMId = getCurrentVMId();

        for (AttachProvider provider : AttachProvider.providers()) {

            log.display("Provider: " + provider);

            log.display("Provider.name(): " + provider.name());

            log.display("Provider.type(): " + provider.type());

            TestUtils.assertNotNull(provider.name(), "Provider.name() returns null");

            TestUtils.assertNotNull(provider.type(), "Provider.type() returns null");

            tryAttach(provider, currentVMId, false);

            tryAttach(provider, currentVMId, true);

            tryAttach(provider, targetVMId, false);

            tryAttach(provider, targetVMId, true);

        }

    }

    void tryAttach(AttachProvider provider, String vmId, boolean useVMDescriptor) throws Throwable {

        log.display("Attaching to vm " + vmId + " using " +

                (useVMDescriptor ? "VirtualMachineDescriptor " : "VM id"));

        VirtualMachine vm;

        if (useVMDescriptor)

            vm = provider.attachVirtualMachine(new VirtualMachineDescriptor(provider, vmId));

        else

            vm = provider.attachVirtualMachine(vmId);

        try {

            log.display("Attached to vm: " + vm);

            TestUtils.assertEquals(vm.id(), vmId, "VirtualMachine.id() returns unexpected value for attached vm: " + vm.id());

            // try to use created VirtualMachine

            log.display("Trying to call VirtualMachine.getSystemProperties()");

            Properties properties = vm.getSystemProperties();

            TestUtils.assertNotNull(properties, "VirtualMachine.getSystemProperties() returns null");

            TestUtils.assertTrue(properties.size() > 0, "VirtualMachine.getSystemProperties() returns empty collection");

        } finally {

            vm.detach();

        }

    }

    public static void main(String[] args) {

        new AttachProvider02(args).runTest();

    }

}