/**
* Creates an lzo file with random data.
*
* @param outputDir Output directory.
* @param fs File system we're using.
* @param attemptContext Task attempt context, contains task id etc.
* @throws IOException
* @throws InterruptedException
*/
private byte[] createTestInput(
Path outputDir, FileSystem fs, TaskAttemptContext attemptContext, int charsToOutput)
throws IOException, InterruptedException {
TextOutputFormat<Text, Text> output = new TextOutputFormat<Text, Text>();
RecordWriter<Text, Text> rw = null;
md5_.reset();
try {
rw = output.getRecordWriter(attemptContext);
char[] chars = "abcdefghijklmnopqrstuvwxyz\u00E5\u00E4\u00F6".toCharArray();
Random r = new Random(System.currentTimeMillis());
Text key = new Text();
Text value = new Text();
int charsMax = chars.length - 1;
for (int i = 0; i < charsToOutput; ) {
i += fillText(chars, r, charsMax, key);
i += fillText(chars, r, charsMax, value);
rw.write(key, value);
md5_.update(key.getBytes(), 0, key.getLength());
// text output format writes tab between the key and value
md5_.update("\t".getBytes("UTF-8"));
md5_.update(value.getBytes(), 0, value.getLength());
}
} finally {
if (rw != null) {
rw.close(attemptContext);
OutputCommitter committer = output.getOutputCommitter(attemptContext);
committer.commitTask(attemptContext);
committer.cleanupJob(attemptContext);
}
}
byte[] result = md5_.digest();
md5_.reset();
return result;
}
