@Test
public void testReadRandomSampleFile() throws IOException {
final int BUFFER_SIZE = 64;
Cache cache = cacheManager.getCache();
InfinispanDirectory dir = new InfinispanDirectory(cache, cache, cache, INDEXNAME, BUFFER_SIZE);
final int FILE_SIZE = 1000;
assert BUFFER_SIZE < FILE_SIZE;
createFileWithRepeatableContent(dir, "RandomSampleFile.txt", FILE_SIZE);
IndexInput indexInput = dir.openInput("RandomSampleFile.txt");
assert indexInput.length() == FILE_SIZE;
RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();
Random r = new Random();
long seekPoint = 0;
// Now it reads some random byte and it compares to the expected byte
for (int i = 0; i < FILE_SIZE; i++) {
if (seekPoint == i) {
byte expectedByte = bytesGenerator.nextByte();
byte actualByte = indexInput.readByte();
assert expectedByte == actualByte;
seekPoint = indexInput.getFilePointer() + r.nextInt(10);
indexInput.seek(seekPoint);
} else {
bytesGenerator.nextByte();
}
}
indexInput.close();
dir.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
}
@Test
public void testReadWholeFile() throws IOException {
final int BUFFER_SIZE = 64;
Cache cache = cacheManager.getCache();
InfinispanDirectory dir = new InfinispanDirectory(cache, cache, cache, INDEXNAME, BUFFER_SIZE);
verifyOnBuffer("SingleChunk.txt", 61, BUFFER_SIZE, cache, dir, 15);
final int VERY_BIG_FILE_SIZE = 10000;
assert BUFFER_SIZE < VERY_BIG_FILE_SIZE;
verifyOnBuffer("MultipleChunks.txt", VERY_BIG_FILE_SIZE, BUFFER_SIZE, cache, dir, 33);
final int LAST_CHUNK_COMPLETELY_FILLED_FILE_SIZE = 256;
assert (LAST_CHUNK_COMPLETELY_FILLED_FILE_SIZE % BUFFER_SIZE) == 0;
verifyOnBuffer(
"LastChunkFilled.txt", LAST_CHUNK_COMPLETELY_FILLED_FILE_SIZE, BUFFER_SIZE, cache, dir, 11);
assertHasNChunks(4, cache, INDEXNAME, "LastChunkFilled.txt.bak", BUFFER_SIZE);
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
final int LAST_CHUNK_WITH_LONELY_BYTE_FILE_SIZE = 257;
assert (LAST_CHUNK_WITH_LONELY_BYTE_FILE_SIZE % BUFFER_SIZE) == 1;
verifyOnBuffer(
"LonelyByteInLastChunk.txt",
LAST_CHUNK_WITH_LONELY_BYTE_FILE_SIZE,
BUFFER_SIZE,
cache,
dir,
12);
assertHasNChunks(5, cache, INDEXNAME, "LonelyByteInLastChunk.txt.bak", BUFFER_SIZE);
dir.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
}
/**
* Used to verify that IndexInput.readBytes method reads correctly the whole file content
* comparing the result with the expected sequence of bytes
*
* @param dir The Directory containing the file to verify
* @param fileName The file name to read
* @param contentFileSizeExpected The size content file expected
* @param arrayLengthToRead The length of byte array to read
* @throws IOException
*/
private void assertReadBytesWorkingCorrectly(
InfinispanDirectory dir,
String fileName,
final int contentFileSizeExpected,
final int arrayLengthToRead)
throws IOException {
IndexInput indexInput = dir.openInput(fileName);
assert indexInput.length() == contentFileSizeExpected;
RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();
byte[] readBytes = new byte[arrayLengthToRead];
byte[] expectedBytes = new byte[arrayLengthToRead];
long toRead = contentFileSizeExpected;
while (toRead > 0) {
// the condition is satisfied when the file is close to the end
if (toRead < arrayLengthToRead) {
readBytes = new byte[(int) toRead];
expectedBytes = new byte[(int) toRead];
}
int nextBytesToRead = (int) Math.min(toRead, arrayLengthToRead);
bytesGenerator.nextBytes(expectedBytes);
indexInput.readBytes(readBytes, 0, nextBytesToRead);
assert Arrays.equals(expectedBytes, readBytes);
toRead = toRead - nextBytesToRead;
}
indexInput.close();
}
/**
* It creates a file with fixed size using a RepeatableLongByteSequence object to generate a
* repeatable content
*
* @param dir The Directory containing the file to create
* @param fileName The file name to create
* @param contentFileSize The size content file to create
* @throws IOException
*/
private void createFileWithRepeatableContent(
InfinispanDirectory dir, String fileName, final int contentFileSize) throws IOException {
IndexOutput indexOutput = dir.createOutput(fileName);
RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();
for (int i = 0; i < contentFileSize; i++) {
indexOutput.writeByte(bytesGenerator.nextByte());
}
indexOutput.close();
}
/**
* Helper for testReadWholeFile test: creates a file and then verifies it's readability in
* specific corner cases. Then reuses the same parameters to verify the file rename capabilities.
*/
private void verifyOnBuffer(
final String fileName,
final int fileSize,
final int bufferSize,
Cache cache,
InfinispanDirectory dir,
final int readBuffer)
throws IOException {
createFileWithRepeatableContent(dir, fileName, fileSize);
assertReadByteWorkingCorrectly(dir, fileName, fileSize);
assertReadBytesWorkingCorrectly(dir, fileName, fileSize, readBuffer);
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
final String newFileName = fileName + ".bak";
dir.renameFile(fileName, newFileName);
assertReadByteWorkingCorrectly(dir, newFileName, fileSize);
assertReadBytesWorkingCorrectly(dir, newFileName, fileSize, readBuffer);
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
assert dir.fileExists(newFileName);
assert dir.fileExists(fileName) == false;
}
@Test
public void testWriteChunksDefaultChunks() throws Exception {
Cache cache = cacheManager.getCache();
InfinispanDirectory dir = new InfinispanDirectory(cache, INDEXNAME);
final String testText = "This is some rubbish";
final byte[] testTextAsBytes = testText.getBytes();
IndexOutput io = dir.createOutput("MyNewFile.txt");
io.writeByte((byte) 1);
io.writeByte((byte) 2);
io.writeByte((byte) 3);
io.writeBytes(testTextAsBytes, testTextAsBytes.length);
io.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
FileCacheKey fileCacheKey = new FileCacheKey(INDEXNAME, "MyNewFile.txt");
assert null != cache.get(fileCacheKey);
FileMetadata metadata = (FileMetadata) cache.get(fileCacheKey);
Assert.assertEquals(testTextAsBytes.length + 3, metadata.getSize());
assert null
!= cache.get(
new ChunkCacheKey(
INDEXNAME, "MyNewFile.txt", 0, InfinispanDirectory.DEFAULT_BUFFER_SIZE));
// test contents by reading:
IndexInput ii = dir.openInput("MyNewFile.txt");
assert ii.readByte() == 1;
assert ii.readByte() == 2;
assert ii.readByte() == 3;
byte[] buf = new byte[testTextAsBytes.length];
ii.readBytes(buf, 0, testTextAsBytes.length);
ii.close();
assert testText.equals(new String(buf).trim());
dir.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
}
/**
* Used to verify that IndexInput.readByte method reads correctly the whole file content comparing
* the result with the expected sequence of bytes
*
* @param dir The Directory containing the file to verify
* @param fileName The file name to read
* @param contentFileSizeExpected The size content file expected
* @throws IOException
*/
private void assertReadByteWorkingCorrectly(
InfinispanDirectory dir, String fileName, final int contentFileSizeExpected)
throws IOException {
IndexInput indexInput = dir.openInput(fileName);
assert indexInput.length() == contentFileSizeExpected;
RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();
for (int i = 0; i < contentFileSizeExpected; i++) {
assert bytesGenerator.nextByte() == indexInput.readByte();
}
indexInput.close();
}
public void multipleFlushTest() throws IOException {
final String filename = "longFile.writtenInMultipleFlushes";
final int bufferSize = 300;
Cache cache = cacheManager.getCache();
cache.clear();
InfinispanDirectory dir = new InfinispanDirectory(cache, cache, cache, INDEXNAME, 13);
byte[] manyBytes = fillBytes(bufferSize);
IndexOutput indexOutput = dir.createOutput(filename);
for (int i = 0; i < 10; i++) {
indexOutput.writeBytes(manyBytes, bufferSize);
indexOutput.flush();
}
indexOutput.close();
IndexInput input = dir.openInput(filename);
final int finalSize = (10 * bufferSize);
assert input.length() == finalSize;
final byte[] resultingBuffer = new byte[finalSize];
input.readBytes(resultingBuffer, 0, finalSize);
int index = 0;
for (int i = 0; i < 10; i++) {
for (int j = 0; j < bufferSize; j++) assert resultingBuffer[index++] == manyBytes[j];
}
}
public void testWriteChunks() throws Exception {
final int BUFFER_SIZE = 64;
Cache cache = cacheManager.getCache();
InfinispanDirectory dir = new InfinispanDirectory(cache, cache, cache, INDEXNAME, BUFFER_SIZE);
IndexOutput io = dir.createOutput("MyNewFile.txt");
io.writeByte((byte) 66);
io.writeByte((byte) 69);
io.flush();
io.close();
assert dir.fileExists("MyNewFile.txt");
assert null != cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 0, BUFFER_SIZE));
// test contents by reading:
byte[] buf = new byte[9];
IndexInput ii = dir.openInput("MyNewFile.txt");
ii.readBytes(buf, 0, (int) ii.length());
ii.close();
assert new String(new byte[] {66, 69}).equals(new String(buf).trim());
String testText =
"This is some rubbish again that will span more than one chunk - one hopes. Who knows, maybe even three or four chunks.";
io = dir.createOutput("MyNewFile.txt");
io.seek(0);
io.writeBytes(testText.getBytes(), 0, testText.length());
io.close();
// now compare.
byte[] chunk1 =
(byte[]) cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 0, BUFFER_SIZE));
byte[] chunk2 =
(byte[]) cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 1, BUFFER_SIZE));
assert null != chunk1;
assert null != chunk2;
assert testText.equals(new String(chunk1) + new String(chunk2).trim());
dir.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
}
@Test
public void testWriteUsingSeekMethod() throws IOException {
final int BUFFER_SIZE = 64;
Cache cache = cacheManager.getCache();
InfinispanDirectory dir = new InfinispanDirectory(cache, cache, cache, INDEXNAME, BUFFER_SIZE);
String fileName = "SomeText.txt";
IndexOutput io = dir.createOutput(fileName);
RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();
// It writes repeatable text
final int REPEATABLE_BUFFER_SIZE = 1501;
for (int i = 0; i < REPEATABLE_BUFFER_SIZE; i++) {
io.writeByte(bytesGenerator.nextByte());
}
io.flush();
assert io.length() == REPEATABLE_BUFFER_SIZE;
// Text to write on file with repeatable text
final String someText = "This is some text";
final byte[] someTextAsBytes = someText.getBytes();
// 4 points in random order where writing someText: at begin of file, at end of file, within a
// single chunk,
// between 2 chunks
final int[] pointers = {0, 635, REPEATABLE_BUFFER_SIZE, 135};
for (int i = 0; i < pointers.length; i++) {
io.seek(pointers[i]);
io.writeBytes(someTextAsBytes, someTextAsBytes.length);
}
io.close();
bytesGenerator.reset();
final long finalSize = REPEATABLE_BUFFER_SIZE + someTextAsBytes.length;
assert io.length() == finalSize;
assert io.length()
== DirectoryIntegrityCheck.deepCountFileSize(new FileCacheKey(INDEXNAME, fileName), cache);
int indexPointer = 0;
Arrays.sort(pointers);
byte[] buffer = null;
int chunkIndex = -1;
// now testing the stream is equal to the produced repeatable but including the edits at pointed
// positions
for (int i = 0; i < REPEATABLE_BUFFER_SIZE + someTextAsBytes.length; i++) {
if (i % BUFFER_SIZE == 0) {
buffer =
(byte[]) cache.get(new ChunkCacheKey(INDEXNAME, fileName, ++chunkIndex, BUFFER_SIZE));
}
byte predictableByte = bytesGenerator.nextByte();
if (i < pointers[indexPointer]) {
// Assert predictable text
Assert.assertEquals(predictableByte, buffer[i % BUFFER_SIZE]);
} else if (pointers[indexPointer] <= i
&& i < pointers[indexPointer] + someTextAsBytes.length) {
// Assert someText
Assert.assertEquals(someTextAsBytes[i - pointers[indexPointer]], buffer[i % BUFFER_SIZE]);
}
if (i == pointers[indexPointer] + someTextAsBytes.length) {
// Change pointer
indexPointer++;
}
}
dir.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
}
@Test(enabled = false)
public void testReadChunks() throws Exception {
final int BUFFER_SIZE = 64;
Cache cache = cacheManager.getCache();
InfinispanDirectory dir = new InfinispanDirectory(cache, cache, cache, INDEXNAME, BUFFER_SIZE);
// create file headers
FileMetadata file1 = new FileMetadata(5);
FileCacheKey key1 = new FileCacheKey(INDEXNAME, "Hello.txt");
cache.put(key1, file1);
FileMetadata file2 = new FileMetadata(5);
FileCacheKey key2 = new FileCacheKey(INDEXNAME, "World.txt");
cache.put(key2, file2);
// byte array for Hello.txt
String helloText = "Hello world. This is some text.";
cache.put(new ChunkCacheKey(INDEXNAME, "Hello.txt", 0, BUFFER_SIZE), helloText.getBytes());
// byte array for World.txt - should be in at least 2 chunks.
String worldText =
"This String should contain more than sixty four characters but less than one hundred and twenty eight.";
assert worldText.getBytes().length > BUFFER_SIZE;
assert worldText.getBytes().length < (2 * BUFFER_SIZE);
byte[] buf = new byte[BUFFER_SIZE];
System.arraycopy(worldText.getBytes(), 0, buf, 0, BUFFER_SIZE);
cache.put(new ChunkCacheKey(INDEXNAME, "World.txt", 0, BUFFER_SIZE), buf);
String part1 = new String(buf);
buf = new byte[BUFFER_SIZE];
System.arraycopy(worldText.getBytes(), BUFFER_SIZE, buf, 0, worldText.length() - BUFFER_SIZE);
cache.put(new ChunkCacheKey(INDEXNAME, "World.txt", 1, BUFFER_SIZE), buf);
String part2 = new String(buf);
// make sure the generated bytes do add up!
assert worldText.equals(part1 + part2.trim());
file1.setSize(helloText.length());
file2.setSize(worldText.length());
Set<String> s = new HashSet<String>();
s.add("Hello.txt");
s.add("World.txt");
Set other = new HashSet(Arrays.asList(dir.list()));
// ok, file listing works.
assert s.equals(other);
IndexInput ii = dir.openInput("Hello.txt");
assert ii.length() == helloText.length();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
for (int i = 0; i < ii.length(); i++) {
baos.write(ii.readByte());
}
assert new String(baos.toByteArray()).equals(helloText);
ii = dir.openInput("World.txt");
assert ii.length() == worldText.length();
baos = new ByteArrayOutputStream();
for (int i = 0; i < ii.length(); i++) {
baos.write(ii.readByte());
}
assert new String(baos.toByteArray()).equals(worldText);
// now with buffered reading
ii = dir.openInput("Hello.txt");
assert ii.length() == helloText.length();
baos = new ByteArrayOutputStream();
long toRead = ii.length();
while (toRead > 0) {
buf = new byte[19]; // suitably arbitrary
int bytesRead = (int) Math.min(toRead, 19);
ii.readBytes(buf, 0, bytesRead);
toRead = toRead - bytesRead;
baos.write(buf, 0, bytesRead);
}
assert new String(baos.toByteArray()).equals(helloText);
ii = dir.openInput("World.txt");
assert ii.length() == worldText.length();
baos = new ByteArrayOutputStream();
toRead = ii.length();
while (toRead > 0) {
buf = new byte[19]; // suitably arbitrary
int bytesRead = (int) Math.min(toRead, 19);
ii.readBytes(buf, 0, bytesRead);
toRead = toRead - bytesRead;
baos.write(buf, 0, bytesRead);
}
assert new String(baos.toByteArray()).equals(worldText);
dir.deleteFile("Hello.txt");
assert null == cache.get(new FileCacheKey(INDEXNAME, "Hello.txt"));
assert null == cache.get(new ChunkCacheKey(INDEXNAME, "Hello.txt", 0, BUFFER_SIZE));
Object ob1 = cache.get(new FileCacheKey(INDEXNAME, "World.txt"));
Object ob2 = cache.get(new ChunkCacheKey(INDEXNAME, "World.txt", 0, BUFFER_SIZE));
Object ob3 = cache.get(new ChunkCacheKey(INDEXNAME, "World.txt", 1, BUFFER_SIZE));
dir.renameFile("World.txt", "HelloWorld.txt");
assert null == cache.get(new FileCacheKey(INDEXNAME, "Hello.txt"));
assert null == cache.get(new ChunkCacheKey(INDEXNAME, "Hello.txt", 0, BUFFER_SIZE));
assert null == cache.get(new ChunkCacheKey(INDEXNAME, "Hello.txt", 1, BUFFER_SIZE));
assert cache.get(new FileCacheKey(INDEXNAME, "HelloWorld.txt")).equals(ob1);
assert cache.get(new ChunkCacheKey(INDEXNAME, "HelloWorld.txt", 0, BUFFER_SIZE)).equals(ob2);
assert cache.get(new ChunkCacheKey(INDEXNAME, "HelloWorld.txt", 1, BUFFER_SIZE)).equals(ob3);
// test that contents survives a move
ii = dir.openInput("HelloWorld.txt");
assert ii.length() == worldText.length();
baos = new ByteArrayOutputStream();
toRead = ii.length();
while (toRead > 0) {
buf = new byte[19]; // suitably arbitrary
int bytesRead = (int) Math.min(toRead, 19);
ii.readBytes(buf, 0, bytesRead);
toRead = toRead - bytesRead;
baos.write(buf, 0, bytesRead);
}
assert new String(baos.toByteArray()).equals(worldText);
dir.close();
DirectoryIntegrityCheck.verifyDirectoryStructure(cache, INDEXNAME);
}