/**
* Validate streams generate the same output.
*
* @param expIn Expected input stream.
* @param actIn Actual input stream.
* @param expSize Expected size of the streams.
* @param seek Seek to use async position-based reading or {@code null} to use simple continuous
* reading.
* @throws IOException In case of any IO exception.
*/
private void assertEqualStreams(
InputStream expIn, GridGgfsInputStream actIn, @Nullable Long expSize, @Nullable Long seek)
throws IOException {
if (seek != null) expIn.skip(seek);
int bufSize = 2345;
byte buf1[] = new byte[bufSize];
byte buf2[] = new byte[bufSize];
long pos = 0;
long start = System.currentTimeMillis();
while (true) {
int read = (int) Math.min(bufSize, expSize - pos);
int i1;
if (seek == null) i1 = actIn.read(buf1, 0, read);
else if (seek % 2 == 0) i1 = actIn.read(pos + seek, buf1, 0, read);
else {
i1 = read;
actIn.readFully(pos + seek, buf1, 0, read);
}
// Read at least 0 byte, but don't read more then 'i1' or 'read'.
int i2 = expIn.read(buf2, 0, Math.max(0, Math.min(i1, read)));
if (i1 != i2) {
fail(
"Expects the same data [read="
+ read
+ ", pos="
+ pos
+ ", seek="
+ seek
+ ", i1="
+ i1
+ ", i2="
+ i2
+ ']');
}
if (i1 == -1) break; // EOF
// i1 == bufSize => compare buffers.
// i1 < bufSize => Compare part of buffers, rest of buffers are equal from previous
// iteration.
assertTrue(
"Expects the same data [read="
+ read
+ ", pos="
+ pos
+ ", seek="
+ seek
+ ", i1="
+ i1
+ ", i2="
+ i2
+ ']',
Arrays.equals(buf1, buf2));
if (read == 0) break; // Nothing more to read.
pos += i1;
}
if (expSize != null) assertEquals(expSize.longValue(), pos);
long time = System.currentTimeMillis() - start;
if (time != 0 && log.isInfoEnabled()) {
log.info(
String.format(
"Streams were compared in continuous reading " + "[size=%7d, rate=%3.1f MB/sec]",
expSize, expSize * 1000. / time / 1024 / 1024));
}
}
/**
* Checks availability of a classpath resource.
*
* @param name Resource name.
* @return {@code true} if resource is available and ready for read, {@code false} otherwise.
*/
private boolean resourceAvailable(String name) {
InputStream cfgStream =
Thread.currentThread().getContextClassLoader().getResourceAsStream(name);
if (cfgStream == null) {
log.error("Classpath resource not found: " + name);
return false;
}
try {
// Read a single byte to force actual content access by JVM.
cfgStream.read();
return true;
} catch (IOException e) {
log.error("Failed to read classpath resource: " + name, e);
return false;
} finally {
U.close(cfgStream, log);
}
}
/**
* Test file creation.
*
* @param path Path to file to store.
* @param size Size of file to store.
* @param salt Salt for file content generation.
* @throws Exception In case of any exception.
*/
private void testCreateFile(final GridGgfsPath path, final long size, final int salt)
throws Exception {
info("Create file [path=" + path + ", size=" + size + ", salt=" + salt + ']');
final AtomicInteger cnt = new AtomicInteger(0);
final Collection<GridGgfsPath> cleanUp = new ConcurrentLinkedQueue<>();
long time =
runMultiThreaded(
new Callable<Object>() {
@Override
public Object call() throws Exception {
int id = cnt.incrementAndGet();
GridGgfsPath f = new GridGgfsPath(path.parent(), "asdf" + (id > 1 ? "-" + id : ""));
try (GridGgfsOutputStream out = fs.create(f, 0, true, null, 0, 1024, null)) {
assertNotNull(out);
cleanUp.add(f); // Add all created into cleanup list.
U.copy(new GridGgfsTestInputStream(size, salt), out);
}
return null;
}
},
WRITING_THREADS_CNT,
"perform-multi-thread-writing");
if (time > 0) {
double rate = size * 1000. / time / 1024 / 1024;
info(
String.format(
"Write file [path=%s, size=%d kB, rate=%2.1f MB/s]",
path, WRITING_THREADS_CNT * size / 1024, WRITING_THREADS_CNT * rate));
}
info("Read and validate saved file: " + path);
final InputStream expIn = new GridGgfsTestInputStream(size, salt);
final GridGgfsInputStream actIn = fs.open(path, CFG_BLOCK_SIZE * READING_THREADS_CNT * 11 / 10);
// Validate continuous reading of whole file.
assertEqualStreams(expIn, actIn, size, null);
// Validate random seek and reading.
final Random rnd = new Random();
runMultiThreaded(
new Callable<Object>() {
@Override
public Object call() throws Exception {
long skip = Math.abs(rnd.nextLong() % (size + 1));
long range = Math.min(size - skip, rnd.nextInt(CFG_BLOCK_SIZE * 400));
assertEqualStreams(new GridGgfsTestInputStream(size, salt), actIn, range, skip);
return null;
}
},
READING_THREADS_CNT,
"validate-multi-thread-reading");
expIn.close();
actIn.close();
info("Get stored file info: " + path);
GridGgfsFile desc = fs.info(path);
info("Validate stored file info: " + desc);
assertNotNull(desc);
if (log.isDebugEnabled()) log.debug("File descriptor: " + desc);
Collection<GridGgfsBlockLocation> aff = fs.affinity(path, 0, desc.length());
assertFalse("Affinity: " + aff, desc.length() != 0 && aff.isEmpty());
int blockSize = desc.blockSize();
assertEquals("File size", size, desc.length());
assertEquals("Binary block size", CFG_BLOCK_SIZE, blockSize);
// assertEquals("Permission", "rwxr-xr-x", desc.getPermission().toString());
// assertEquals("Permission sticky bit marks this is file", false,
// desc.getPermission().getStickyBit());
assertEquals("Type", true, desc.isFile());
assertEquals("Type", false, desc.isDirectory());
info("Cleanup files: " + cleanUp);
for (GridGgfsPath f : cleanUp) {
fs.delete(f, true);
assertNull(fs.info(f));
}
}