| /* |
| * Copyright (c) 2011, 2012, 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 7087549 |
| * @summary Test custom options with newInputStream. |
| * @author Brandon Passanisi |
| * @library .. |
| * @build CustomOptions PassThroughFileSystem |
| * @run main CustomOptions |
| */ |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.nio.file.*; |
| import java.nio.file.attribute.FileAttribute; |
| import java.nio.file.spi.FileSystemProvider; |
| import java.nio.channels.SeekableByteChannel; |
| import java.util.Collections; |
| import java.util.Set; |
| import java.util.Map; |
| |
| public class CustomOptions { |
| |
| // Create a custom option |
| static enum CustomOption implements OpenOption { |
| IGNORE, |
| } |
| |
| // number of times that IGNORE option is observed |
| static int ignoreCount; |
| |
| // A pass through provider that supports a custom open option |
| static class MyCustomProvider extends PassThroughFileSystem.PassThroughProvider { |
| public MyCustomProvider() { } |
| |
| @Override |
| public SeekableByteChannel newByteChannel(Path path, |
| Set<? extends OpenOption> options, |
| FileAttribute<?>... attrs) |
| throws IOException |
| { |
| if (options.contains(CustomOption.IGNORE)) { |
| ignoreCount++; |
| options.remove(CustomOption.IGNORE); |
| } |
| return super.newByteChannel(path, options, attrs); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| FileSystemProvider provider = new MyCustomProvider(); |
| Map<String,?> env = Collections.emptyMap(); |
| URI uri = URI.create("pass:///"); |
| FileSystem fs = provider.newFileSystem(uri, env); |
| |
| // Create temp dir for testing |
| Path dir = TestUtil.createTemporaryDirectory(); |
| try { |
| |
| // Create temp file for testing |
| Path path = fs.getPath(dir.resolve("foo").toString()); |
| Files.createFile(path); |
| |
| // Test custom option |
| Files.newInputStream(path, CustomOption.IGNORE).close(); |
| if (ignoreCount != 1) |
| throw new RuntimeException("IGNORE option not passed through"); |
| |
| // Test null option |
| try { |
| Files.newInputStream(path, new OpenOption[] { null }).close(); |
| throw new RuntimeException("NullPointerException expected"); |
| } catch (NullPointerException ignore) { } |
| |
| // Test unsupported options |
| try { |
| Files.newInputStream(path, StandardOpenOption.WRITE).close(); |
| throw new RuntimeException("UnsupportedOperationException expected"); |
| } catch (UnsupportedOperationException uoe) { } |
| try { |
| Files.newInputStream(path, StandardOpenOption.APPEND).close(); |
| throw new RuntimeException("UnsupportedOperationException expected"); |
| } catch (UnsupportedOperationException uoe) { } |
| |
| } finally { |
| // Cleanup |
| TestUtil.removeAll(dir); |
| } |
| } |
| } |