/**
* Gets the headers of the blob with blob ID {@code blobId} and verifies them against what is
* expected.
*
* @param blobId the blob ID of the blob to HEAD.
* @param range the {@link ByteRange} for the request.
* @param expectedHeaders the expected headers in the response.
* @throws ExecutionException
* @throws InterruptedException
*/
private void getHeadAndVerify(String blobId, ByteRange range, HttpHeaders expectedHeaders)
throws ExecutionException, InterruptedException, RestServiceException {
HttpHeaders headers = null;
if (range != null) {
headers =
new DefaultHttpHeaders()
.add(RestUtils.Headers.RANGE, RestTestUtils.getRangeHeaderString(range));
}
FullHttpRequest httpRequest = buildRequest(HttpMethod.HEAD, blobId, headers, null);
Queue<HttpObject> responseParts = nettyClient.sendRequest(httpRequest, null, null).get();
HttpResponse response = (HttpResponse) responseParts.poll();
assertEquals(
"Unexpected response status",
range == null ? HttpResponseStatus.OK : HttpResponseStatus.PARTIAL_CONTENT,
response.getStatus());
checkCommonGetHeadHeaders(response.headers());
long contentLength = Long.parseLong(expectedHeaders.get(RestUtils.Headers.BLOB_SIZE));
if (range != null) {
Pair<String, Long> rangeAndLength =
RestUtils.buildContentRangeAndLength(range, contentLength);
assertEquals(
"Content-Range header not set correctly",
rangeAndLength.getFirst(),
response.headers().get(RestUtils.Headers.CONTENT_RANGE));
contentLength = rangeAndLength.getSecond();
} else {
assertNull(
"Content-Range header should not be set",
response.headers().get(RestUtils.Headers.CONTENT_RANGE));
}
assertEquals(
"Accept-Ranges not set correctly",
"bytes",
response.headers().get(RestUtils.Headers.ACCEPT_RANGES));
assertEquals(
RestUtils.Headers.CONTENT_LENGTH + " does not match expected",
contentLength,
HttpHeaders.getContentLength(response));
assertEquals(
RestUtils.Headers.CONTENT_TYPE + " does not match " + RestUtils.Headers.AMBRY_CONTENT_TYPE,
expectedHeaders.get(RestUtils.Headers.AMBRY_CONTENT_TYPE),
HttpHeaders.getHeader(response, HttpHeaders.Names.CONTENT_TYPE));
verifyBlobProperties(expectedHeaders, response);
discardContent(responseParts, 1);
assertTrue("Channel should be active", HttpHeaders.isKeepAlive(response));
}
/**
* Gets a view of the given {@code segment} and verifies the ref count and the data obtained from
* the view against {@code expectedRefCount} and {@code dataInSegment} respectively.
*
* @param segment the {@link LogSegment} to get a view from.
* @param writeStartOffset the offset at which write was started on the segment.
* @param offset the offset for which a view is required.
* @param dataInSegment the entire data in the {@link LogSegment}.
* @param expectedRefCount the expected return value of {@link LogSegment#refCount()} once the
* view is obtained from the {@code segment}
* @throws IOException
*/
private void getAndVerifyView(
LogSegment segment,
long writeStartOffset,
int offset,
byte[] dataInSegment,
long expectedRefCount)
throws IOException {
Random random = new Random();
Pair<File, FileChannel> view = segment.getView();
assertNotNull("File object received in view is null", view.getFirst());
assertNotNull("FileChannel object received in view is null", view.getSecond());
assertEquals("Ref count is not as expected", expectedRefCount, segment.refCount());
int sizeToRead = random.nextInt(dataInSegment.length - offset + 1);
ByteBuffer buffer = ByteBuffer.wrap(new byte[sizeToRead]);
view.getSecond().read(buffer, writeStartOffset + offset);
assertArrayEquals(
"Data read from file does not match data written",
Arrays.copyOfRange(dataInSegment, offset, offset + sizeToRead),
buffer.array());
}