/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.drill.exec.work.batch;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import com.google.common.base.Stopwatch;
public class FileTest {
public static void main(String[] args) throws IOException {
Configuration conf = new Configuration();
conf.set(FileSystem.FS_DEFAULT_NAME_KEY, "sync:///");
System.out.println(FileSystem.getDefaultUri(conf));
FileSystem fs = FileSystem.get(conf);
// FileSystem fs = new LocalSyncableFileSystem(conf);
Path path = new Path("/tmp/testFile");
FSDataOutputStream out = fs.create(path);
byte[] s = "hello world".getBytes();
out.write(s);
out.sync();
// out.close();
FSDataInputStream in = fs.open(path);
byte[] bytes = new byte[s.length];
in.read(bytes);
System.out.println(new String(bytes));
File file = new File("/tmp/testFile");
FileOutputStream fos = new FileOutputStream(file);
FileInputStream fis = new FileInputStream(file);
fos.write(s);
fos.getFD().sync();
fis.read(bytes);
System.out.println(new String(bytes));
out = fs.create(new Path("/tmp/file"));
for (int i = 0; i < 100; i++) {
bytes = new byte[256*1024];
Stopwatch watch = new Stopwatch();
watch.start();
out.write(bytes);
out.sync();
long t = watch.elapsed(TimeUnit.MILLISECONDS);
System.out.printf("Elapsed: %d. Rate %d.\n", t, (long) ((long) bytes.length * 1000L / t));
}
}
}