diff -r 115e09b7a004 -r 3acf8e5e2ca0 jdk/test/java/nio/file/attribute/FileStoreAttributeView/Basic.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/java/nio/file/attribute/FileStoreAttributeView/Basic.java Sun Feb 15 12:25:54 2009 +0000 @@ -0,0 +1,171 @@ +/* + * Copyright 2008-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +/* @test + * @bug 4313887 + * @summary Unit test for java.nio.file.attribute.FileStoreAttributeView + * @library ../.. + */ + +import java.nio.file.*; +import java.nio.file.attribute.*; +import java.io.File; +import java.io.IOException; +import java.util.*; + +/** + * Simple unit test for FileStoreAttributeView that checks that the disk space + * attribtues are "close" to the equivalent values reported by java.io.File. + */ + +public class Basic { + + static final long K = 1024L; + static final long G = 1024L * 1024L * 1024L; + + /** + * Print out the disk space information for the given file system + */ + static void printFileStore(FileStore fs) throws IOException { + FileStoreSpaceAttributeView view = + fs.getFileStoreAttributeView(FileStoreSpaceAttributeView.class); + FileStoreSpaceAttributes attrs = view.readAttributes(); + + long total = attrs.totalSpace() / K; + long used = (attrs.totalSpace() - attrs.unallocatedSpace()) / K; + long avail = attrs.usableSpace() / K; + + String s = fs.toString(); + if (s.length() > 20) { + System.out.println(s); + s = ""; + } + System.out.format("%-20s %12d %12d %12d\n", s, total, used, avail); + } + + /** + * Check that two values are within 1GB of each other + */ + static void checkWithin1GB(long value1, long value2) { + long diff = Math.abs(value1 - value2); + if (diff > G) + throw new RuntimeException("values differ by more than 1GB"); + } + + /** + * Check disk space on the file system of the given file + */ + static void checkSpace(Path file) throws IOException { + System.out.println(" -- check space -- "); + System.out.println(file); + + FileStore fs = file.getFileStore(); + System.out.format("Filesystem: %s\n", fs); + + // get values reported by java.io.File + File f = new File(file.toString()); + long total = f.getTotalSpace(); + long free = f.getFreeSpace(); + long usable = f.getUsableSpace(); + System.out.println("java.io.File"); + System.out.format(" Total: %d\n", total); + System.out.format(" Free: %d\n", free); + System.out.format(" Usable: %d\n", usable); + + // get values reported by the FileStoreSpaceAttributeView + FileStoreSpaceAttributes attrs = fs + .getFileStoreAttributeView(FileStoreSpaceAttributeView.class) + .readAttributes(); + System.out.println("java.nio.file.FileStoreSpaceAttributeView:"); + System.out.format(" Total: %d\n", attrs.totalSpace()); + System.out.format(" Free: %d\n", attrs.unallocatedSpace()); + System.out.format(" Usable: %d\n", attrs.usableSpace()); + + // check values are "close" + checkWithin1GB(total, attrs.totalSpace()); + checkWithin1GB(free, attrs.unallocatedSpace()); + checkWithin1GB(usable, attrs.usableSpace()); + + // get values by name (and in bulk) + FileStoreAttributeView view = fs.getFileStoreAttributeView("space"); + checkWithin1GB(total, (Long)view.getAttribute("totalSpace")); + checkWithin1GB(free, (Long)view.getAttribute("unallocatedSpace")); + checkWithin1GB(usable, (Long)view.getAttribute("usableSpace")); + Map map = view.readAttributes("*"); + checkWithin1GB(total, (Long)map.get("totalSpace")); + checkWithin1GB(free, (Long)map.get("unallocatedSpace")); + checkWithin1GB(usable, (Long)map.get("usableSpace")); + map = view.readAttributes("totalSpace", "unallocatedSpace", "usableSpace"); + checkWithin1GB(total, (Long)map.get("totalSpace")); + checkWithin1GB(free, (Long)map.get("unallocatedSpace")); + checkWithin1GB(usable, (Long)map.get("usableSpace")); + } + + /** + * Check (Windows-specific) volume attributes + */ + static void checkVolumeAttributes() throws IOException { + System.out.println(" -- volumes -- "); + for (FileStore store: FileSystems.getDefault().getFileStores()) { + FileStoreAttributeView view = store.getFileStoreAttributeView("volume"); + if (view == null) + continue; + Map attrs = view.readAttributes("*"); + int vsn = (Integer)attrs.get("vsn"); + boolean compressed = (Boolean)attrs.get("compressed"); + boolean removable = (Boolean)attrs.get("removable"); + boolean cdrom = (Boolean)attrs.get("cdrom"); + String type; + if (removable) type = "removable"; + else if (cdrom) type = "cdrom"; + else type = "unknown"; + System.out.format("%s (%s) vsn:%x compressed:%b%n", store.name(), + type, vsn, compressed); + } + + } + + public static void main(String[] args) throws IOException { + // print out the disk space information for all file systems + FileSystem fs = FileSystems.getDefault(); + for (FileStore store: fs.getFileStores()) { + printFileStore(store); + } + + Path dir = TestUtil.createTemporaryDirectory(); + try { + // check space using directory + checkSpace(dir); + + // check space using file + Path file = dir.resolve("foo").createFile(); + checkSpace(file); + + // volume attributes (Windows specific) + checkVolumeAttributes(); + + } finally { + TestUtil.removeAll(dir); + } + } +}