/*

 * Copyright (c) 2016, 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 8159855

 * @summary test ToolProvider SPI

 * @run main/othervm ToolProviderTest

 */

import java.io.File;

import java.io.IOException;

import java.io.PrintWriter;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Arrays;

import java.util.spi.ToolProvider;

public class ToolProviderTest {

    public static void main(String... args) throws Exception {

        ToolProviderTest t = new ToolProviderTest();

        t.run();

    }

    void run() throws Exception {

        initServices();

        System.out.println("test without security manager present:");

        test();

        System.setSecurityManager(new SecurityManager());

        System.out.println("test with security manager present:");

        test();

    }

    private void test() throws Exception {

        ToolProvider testProvider = ToolProvider.findFirst("test").get();

        int rc = testProvider.run(System.out, System.err, "hello test");

        if (rc != 0) {

            throw new Exception("unexpected exit code: " + rc);

        }

    }

    private void initServices() throws IOException {

        Path testClasses = Paths.get(System.getProperty("test.classes"));

        Path services = testClasses.resolve(Paths.get("META-INF", "services"));

        Files.createDirectories(services);

        Files.write(services.resolve(ToolProvider.class.getName()),

                Arrays.asList(TestProvider.class.getName()));

    }

    public static class TestProvider implements ToolProvider {

        public TestProvider() {

            checkPrivileges();

        }

        public String name() {

            return "test";

        }

        public int run(PrintWriter out, PrintWriter err, String... args) {

            out.println("Test: " + Arrays.toString(args));

            return 0;

        }

        private void checkPrivileges() {

            boolean haveSecurityManager = (System.getSecurityManager() != null);

            try {

                // validate appropriate privileges by checking access to a

                // system property

                System.getProperty("java.home");

                if (haveSecurityManager) {

                    throw new Error("exception exception not thrown");

                }

            } catch (SecurityException e) {

                if (!haveSecurityManager) {

                    throw new Error("unexpected exception: " + e);

                }

            }

        }

    }

}