/*

 * Copyright (c) 2019, 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.

 *

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 */

/* @test

 * @summary Verify that nanosecond precision is maintained for file timestamps

 * @modules java.base/sun.nio.fs:+open

 */

import java.io.IOException;

import java.lang.reflect.Method;

import java.nio.file.Files;

import java.nio.file.FileStore;

import java.nio.file.Path;

import java.nio.file.attribute.BasicFileAttributes;

import java.nio.file.attribute.BasicFileAttributeView;

import java.nio.file.attribute.FileTime;

import java.util.Set;

import java.util.concurrent.TimeUnit;

public class SetTimesNanos {

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

        }

        Path dirPath = Path.of("test");

        Path dir = Files.createDirectory(dirPath);

        FileStore store = Files.getFileStore(dir);

        System.out.format("FileStore: \"%s\" on %s (%s)%n",

            dir, store.name(), store.type());

        if (!testedTypes.contains(store.type())) {

            System.err.format("%s not in %s; skipping test", store.type(), testedTypes);

            return;

        }

        testNanos(dir);

        Path file = Files.createFile(dir.resolve("test.dat"));

        testNanos(file);

    }

    private static void testNanos(Path path) throws IOException {

        // Set modification and access times

        // Time stamp = "2017-01-01 01:01:01.123456789";

        long timeNanos = 1_483_261_261L*1_000_000_000L + 123_456_789L;

        FileTime pathTime = FileTime.from(timeNanos, TimeUnit.NANOSECONDS);

        BasicFileAttributeView view =

            Files.getFileAttributeView(path, BasicFileAttributeView.class);

        view.setTimes(pathTime, pathTime, null);

        // Read attributes

        BasicFileAttributes attrs =

            Files.readAttributes(path, BasicFileAttributes.class);

        // Check timestamps

        String[] timeNames = new String[] {"modification", "access"};

        FileTime[] times = new FileTime[] {attrs.lastModifiedTime(),

            attrs.lastAccessTime()};

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

            long nanos = times[i].to(TimeUnit.NANOSECONDS);

            if (nanos != timeNanos) {

                throw new RuntimeException("Expected " + timeNames[i] +

                    " timestamp to be '" + timeNanos + "', but was '" +

                    nanos + "'");

            }

        }

    }

}