/**
* Test cases from MessagePackBase64LineInputFormat.
*
* @see TestLineInputFormat.java
*/
public class TestMessagePackBase64LineInputFormat extends TestCase {
public static class MyClass {
public String s;
public int v;
}
public static class MyClassWritable extends MessagePackWritable<MyClass> {
protected MyClass getObjectInstance() {
return new MyClass();
}
}
public static class MyClassMessagePackBase64LineInputFormat
extends MessagePackBase64LineInputFormat<MyClass, MyClassWritable> {
protected MyClassWritable getWritableInstance() {
return new MyClassWritable();
}
}
// --------------
private static int MAX_LENGTH = 200;
private final Base64 base64_ = new Base64();
private static Configuration defaultConf = new Configuration();
private static FileSystem localFs = null;
private static Path workDir =
new Path(new Path(System.getProperty("test.build.data", "."), "data"), "TestLineInputFormat");
public void testFormat() throws Exception {
localFs = FileSystem.getLocal(defaultConf);
localFs.delete(workDir, true);
Job job = new Job(new Configuration(defaultConf));
Path file = new Path(workDir, "test.txt");
int seed = new Random().nextInt();
Random random = new Random(seed);
// for a variety of lengths
for (int length = 0; length < MAX_LENGTH; length += random.nextInt(MAX_LENGTH / 10) + 1) {
// create a file with length entries
Writer writer = new OutputStreamWriter(localFs.create(file));
try {
MyClass mc = new MyClass();
for (int i = 0; i < length; i++) {
mc.s = Integer.toString(i);
mc.v = i;
byte[] raw = MessagePack.pack(mc);
byte[] b64e = base64_.encodeBase64(raw);
byte[] b64d = base64_.decode(b64e);
MyClass mc2 = MessagePack.unpack(b64d, mc.getClass());
assertEquals(mc.s, mc2.s);
assertEquals(mc.v, mc2.v);
writer.write(base64_.encodeToString(raw));
}
} finally {
writer.close();
}
checkFormat(job);
}
}
void checkFormat(Job job) throws Exception {
TaskAttemptContext attemptContext =
new TaskAttemptContext(job.getConfiguration(), new TaskAttemptID("123", 0, false, 1, 2));
MyClassMessagePackBase64LineInputFormat format = new MyClassMessagePackBase64LineInputFormat();
FileInputFormat.setInputPaths(job, workDir);
List<InputSplit> splits = format.getSplits(job);
for (int j = 0; j < splits.size(); j++) {
RecordReader<LongWritable, MyClassWritable> reader =
format.createRecordReader(splits.get(j), attemptContext);
reader.initialize(splits.get(j), attemptContext);
int count = 0;
try {
while (reader.nextKeyValue()) {
LongWritable key = reader.getCurrentKey();
MyClassWritable val = reader.getCurrentValue();
MyClass mc = val.get();
assertEquals(mc.v, count);
assertEquals(mc.s, Integer.toString(count));
count++;
}
} finally {
reader.close();
}
}
}
}
