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/*
* 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);
}
}
}
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