private void doDownloadByName(final BsonDocument arguments, final BsonDocument assertion) {
Throwable error = null;
final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
final GridFSDownloadByNameOptions options = new GridFSDownloadByNameOptions();
if (arguments.containsKey("options")) {
int revision = arguments.getDocument("options").getInt32("revision").getValue();
options.revision(revision);
}
new MongoOperation<Long>() {
@Override
public void execute() {
gridFSBucket.downloadToStreamByName(
arguments.getString("filename").getValue(),
toAsyncOutputStream(outputStream),
options,
getCallback());
}
}.get();
outputStream.close();
} catch (Throwable e) {
error = e;
}
if (assertion.containsKey("result")) {
assertNull("Should not have thrown an exception", error);
assertEquals(
printHexBinary(outputStream.toByteArray()).toLowerCase(),
assertion.getDocument("result").getString("$hex").getValue());
} else if (assertion.containsKey("error")) {
assertNotNull("Should have thrown an exception", error);
}
}
private void doDownload(final BsonDocument arguments, final BsonDocument assertion) {
Throwable error = null;
final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
new MongoOperation<Long>() {
@Override
public void execute() {
gridFSBucket.downloadToStream(
arguments.getObjectId("id").getValue(),
toAsyncOutputStream(outputStream),
getCallback());
}
}.get();
outputStream.close();
} catch (Throwable e) {
error = e;
}
if (assertion.containsKey("result")) {
assertNull("Should not have thrown an exception", error);
assertEquals(
printHexBinary(outputStream.toByteArray()).toLowerCase(),
assertion.getDocument("result").getString("$hex").getValue());
} else if (assertion.containsKey("error")) {
assertNotNull("Should have thrown an exception", error);
}
}
private BsonDocument parseHexDocument(final BsonDocument document, final String hexDocument) {
if (document.containsKey(hexDocument) && document.get(hexDocument).isDocument()) {
byte[] bytes =
DatatypeConverter.parseHexBinary(
document.getDocument(hexDocument).getString("$hex").getValue());
document.put(hexDocument, new BsonBinary(bytes));
}
return document;
}
private void actionGridFS(final BsonDocument action, final BsonDocument assertion) {
if (action.isEmpty()) {
return;
}
String operation = action.getString("operation").getValue();
if (operation.equals("delete")) {
doDelete(action.getDocument("arguments"), assertion);
} else if (operation.equals("download")) {
doDownload(action.getDocument("arguments"), assertion);
} else if (operation.equals("download_by_name")) {
doDownloadByName(action.getDocument("arguments"), assertion);
} else if (operation.equals("upload")) {
doUpload(action.getDocument("arguments"), assertion);
} else {
throw new IllegalArgumentException("Unknown operation: " + operation);
}
}
@Parameterized.Parameters(name = "{1}")
public static Collection<Object[]> data() throws URISyntaxException, IOException {
List<Object[]> data = new ArrayList<Object[]>();
for (File file : JsonPoweredTestHelper.getTestFiles("/gridfs-tests")) {
BsonDocument testDocument = JsonPoweredTestHelper.getTestDocument(file);
for (BsonValue test : testDocument.getArray("tests")) {
data.add(
new Object[] {
file.getName(),
test.asDocument().getString("description").getValue(),
testDocument.getDocument("data"),
test.asDocument()
});
}
}
return data;
}
private List<BsonDocument> processFiles(
final BsonArray bsonArray, final List<BsonDocument> documents) {
for (BsonValue rawDocument : bsonArray.getValues()) {
if (rawDocument.isDocument()) {
BsonDocument document = rawDocument.asDocument();
if (document.get("length").isInt32()) {
document.put("length", new BsonInt64(document.getInt32("length").getValue()));
}
if (document.containsKey("metadata") && document.getDocument("metadata").isEmpty()) {
document.remove("metadata");
}
if (document.containsKey("aliases")
&& document.getArray("aliases").getValues().size() == 0) {
document.remove("aliases");
}
if (document.containsKey("contentType")
&& document.getString("contentType").getValue().length() == 0) {
document.remove("contentType");
}
documents.add(document);
}
}
return documents;
}
private void doUpload(final BsonDocument rawArguments, final BsonDocument assertion) {
Throwable error = null;
ObjectId objectId = null;
BsonDocument arguments = parseHexDocument(rawArguments, "source");
try {
final String filename = arguments.getString("filename").getValue();
final InputStream inputStream =
new ByteArrayInputStream(arguments.getBinary("source").getData());
final GridFSUploadOptions options = new GridFSUploadOptions();
BsonDocument rawOptions = arguments.getDocument("options", new BsonDocument());
if (rawOptions.containsKey("chunkSizeBytes")) {
options.chunkSizeBytes(rawOptions.getInt32("chunkSizeBytes").getValue());
}
if (rawOptions.containsKey("metadata")) {
options.metadata(Document.parse(rawOptions.getDocument("metadata").toJson()));
}
objectId =
new MongoOperation<ObjectId>() {
@Override
public void execute() {
gridFSBucket.uploadFromStream(
filename, toAsyncInputStream(inputStream), options, getCallback());
}
}.get();
} catch (Throwable e) {
error = e;
}
if (assertion.containsKey("error")) {
// We don't need to read anything more so don't see the extra chunk
if (!assertion.getString("error").getValue().equals("ExtraChunk")) {
assertNotNull("Should have thrown an exception", error);
}
} else {
assertNull("Should not have thrown an exception", error);
for (BsonValue rawDataItem : assertion.getArray("data", new BsonArray())) {
BsonDocument dataItem = rawDataItem.asDocument();
String insert = dataItem.getString("insert", new BsonString("none")).getValue();
if (insert.equals("expected.files")) {
List<BsonDocument> documents =
processFiles(
dataItem.getArray("documents", new BsonArray()), new ArrayList<BsonDocument>());
assertEquals(getFilesCount(new BsonDocument()), documents.size());
BsonDocument actual =
new MongoOperation<BsonDocument>() {
@Override
public void execute() {
filesCollection.find().first(getCallback());
}
}.get();
for (BsonDocument expected : documents) {
assertEquals(expected.get("length"), actual.get("length"));
assertEquals(expected.get("chunkSize"), actual.get("chunkSize"));
assertEquals(expected.get("md5"), actual.get("md5"));
assertEquals(expected.get("filename"), actual.get("filename"));
if (expected.containsKey("metadata")) {
assertEquals(expected.get("metadata"), actual.get("metadata"));
}
}
} else if (insert.equals("expected.chunks")) {
List<BsonDocument> documents =
processChunks(
dataItem.getArray("documents", new BsonArray()), new ArrayList<BsonDocument>());
assertEquals(getChunksCount(new BsonDocument()), documents.size());
List<BsonDocument> actualDocuments =
new MongoOperation<List<BsonDocument>>() {
@Override
public void execute() {
chunksCollection.find().into(new ArrayList<BsonDocument>(), getCallback());
}
}.get();
for (int i = 0; i < documents.size(); i++) {
BsonDocument expected = documents.get(i);
BsonDocument actual;
actual = actualDocuments.get(i);
assertEquals(new BsonObjectId(objectId), actual.getObjectId("files_id"));
assertEquals(expected.get("n"), actual.get("n"));
assertEquals(expected.get("data"), actual.get("data"));
}
}
}
}
}
private void arrangeGridFS(final BsonDocument arrange) {
if (arrange.isEmpty()) {
return;
}
for (BsonValue fileToArrange : arrange.getArray("data", new BsonArray())) {
final BsonDocument document = fileToArrange.asDocument();
if (document.containsKey("delete") && document.containsKey("deletes")) {
for (BsonValue toDelete : document.getArray("deletes")) {
final BsonDocument query = toDelete.asDocument().getDocument("q");
int limit = toDelete.asDocument().getInt32("limit").getValue();
final MongoCollection<BsonDocument> collection;
if (document.getString("delete").getValue().equals("fs.files")) {
collection = filesCollection;
} else {
collection = chunksCollection;
}
if (limit == 1) {
new MongoOperation<DeleteResult>() {
@Override
public void execute() {
collection.deleteOne(query, getCallback());
}
}.get();
} else {
new MongoOperation<DeleteResult>() {
@Override
public void execute() {
collection.deleteMany(query, getCallback());
}
}.get();
}
}
} else if (document.containsKey("insert") && document.containsKey("documents")) {
if (document.getString("insert").getValue().equals("fs.files")) {
new MongoOperation<Void>() {
@Override
public void execute() {
filesCollection.insertMany(
processFiles(document.getArray("documents"), new ArrayList<BsonDocument>()),
getCallback());
}
}.get();
} else {
new MongoOperation<Void>() {
@Override
public void execute() {
chunksCollection.insertMany(
processChunks(document.getArray("documents"), new ArrayList<BsonDocument>()),
getCallback());
}
}.get();
}
} else if (document.containsKey("update") && document.containsKey("updates")) {
final MongoCollection<BsonDocument> collection;
if (document.getString("update").getValue().equals("fs.files")) {
collection = filesCollection;
} else {
collection = chunksCollection;
}
for (BsonValue rawUpdate : document.getArray("updates")) {
final BsonDocument query = rawUpdate.asDocument().getDocument("q");
final BsonDocument update = rawUpdate.asDocument().getDocument("u");
update.put("$set", parseHexDocument(update.getDocument("$set")));
new MongoOperation<UpdateResult>() {
@Override
public void execute() {
collection.updateMany(query, update, getCallback());
}
}.get();
}
} else {
throw new IllegalArgumentException("Unsupported arrange: " + document);
}
}
}
@Test
public void shouldPassAllOutcomes() {
arrangeGridFS(definition.getDocument("arrange", new BsonDocument()));
actionGridFS(definition.getDocument("act"), definition.getDocument("assert"));
}