@Override
public ByteArrayFileCache getBlob(final MD5 md5, final ByteArrayFileCacheManager bafcMan)
throws NoSuchBlobException, BlobStoreCommunicationException, FileCacheIOException,
FileCacheLimitExceededException {
final GridFSDBFile out;
try {
out = getFile(md5);
if (out == null) {
throw new NoSuchBlobException(
"Attempt to retrieve non-existant blob with chksum " + md5.getMD5());
}
final boolean sorted;
if (!out.containsField(Fields.GFS_SORTED)) {
sorted = false;
} else {
sorted = (Boolean) out.get(Fields.GFS_SORTED);
}
final InputStream file = out.getInputStream();
try {
return bafcMan.createBAFC(file, true, sorted);
} finally {
try {
file.close();
} catch (IOException ioe) {
throw new RuntimeException("Something is broken", ioe);
}
}
} catch (MongoException me) {
throw new BlobStoreCommunicationException("Could not read from the mongo database", me);
}
}
public List<String> findDocuments(String id) throws DocumentException {
try {
GridFS gridFS = new GridFS(dataBase);
String key = "metadata." + DocumentConnector.ID;
BasicDBObject query = new BasicDBObject(key, id);
List<GridFSDBFile> gridFSDBFiles = gridFS.find(query);
CommandResult result = dataBase.getLastError();
if (!result.ok()) {
throw new DocumentException(result.getErrorMessage());
}
List<String> objects = new ArrayList<String>();
for (GridFSDBFile gridFSDBFile : gridFSDBFiles) {
ObjectId objectId = (ObjectId) gridFSDBFile.getId();
objects.add(objectId.toStringMongod());
}
return objects;
} catch (Exception e) {
log.error("findDocuments error:" + e.getMessage());
e.printStackTrace();
throw new DocumentException(e.getMessage());
}
}
public String getDocument(String GUID, OutputStream out) throws DocumentException {
try {
GridFS gridFS = new GridFS(dataBase);
ObjectId key = new ObjectId(GUID);
GridFSDBFile gridFSDBFile = gridFS.find(key);
if (gridFSDBFile == null) {
throw new DocumentException("No existe el documento");
}
if (out != null) gridFSDBFile.writeTo(out);
CommandResult result = dataBase.getLastError();
if (!result.ok()) {
throw new DocumentException(result.getErrorMessage());
}
DBObject dbObject = gridFSDBFile.getMetaData();
return JSON.serialize(dbObject);
} catch (Exception e) {
log.error("getDocument error:" + e.getMessage());
e.printStackTrace();
throw new DocumentException(e.getMessage());
}
}
/**
* Return the file type or <tt>null</tt>.
*
* @param path the path to test
* @return the file type
*/
protected final Type getType(JailedResourcePath path) {
GridFSDBFile file = getGridFSDBFile(path, false);
if (file == null) {
return null;
}
Type type = Type.valueOf((String) file.get(RESOURCE_TYPE));
return type;
}
@Override
public Resource rename(String name) {
GridFSDBFile gridFSDBFile = getGridFSDBFile(getPath(), true);
JailedResourcePath renamed = getPath().unjail().getParent().get(name);
gridFSDBFile.put("filename", getFilename(renamed));
gridFSDBFile.save();
return getRenamedResource(renamed);
}
@Test
public void testImportAttachment() throws Exception {
logger.debug("*** testImportAttachment ***");
byte[] content =
copyToBytesFromClasspath(
"/test/elasticsearch/plugin/river/mongodb/gridfs/test-attachment.html");
logger.debug("Content in bytes: {}", content.length);
GridFS gridFS = new GridFS(mongoDB);
GridFSInputFile in = gridFS.createFile(content);
in.setFilename("test-attachment.html");
in.setContentType("text/html");
in.save();
in.validate();
String id = in.getId().toString();
logger.debug("GridFS in: {}", in);
logger.debug("Document created with id: {}", id);
GridFSDBFile out = gridFS.findOne(in.getFilename());
logger.debug("GridFS from findOne: {}", out);
out = gridFS.findOne(new ObjectId(id));
logger.debug("GridFS from findOne: {}", out);
Assert.assertEquals(out.getId(), in.getId());
Thread.sleep(wait);
refreshIndex();
CountResponse countResponse = getNode().client().count(countRequest(getIndex())).actionGet();
logger.debug("Index total count: {}", countResponse.getCount());
assertThat(countResponse.getCount(), equalTo(1l));
countResponse =
getNode().client().count(countRequest(getIndex()).query(fieldQuery("_id", id))).actionGet();
logger.debug("Index count for id {}: {}", id, countResponse.getCount());
assertThat(countResponse.getCount(), equalTo(1l));
SearchResponse response =
getNode()
.client()
.prepareSearch(getIndex())
.setQuery(QueryBuilders.queryString("Aliquam"))
.execute()
.actionGet();
logger.debug("SearchResponse {}", response.toString());
long totalHits = response.getHits().getTotalHits();
logger.debug("TotalHits: {}", totalHits);
assertThat(totalHits, equalTo(1l));
gridFS.remove(new ObjectId(id));
Thread.sleep(wait);
refreshIndex();
countResponse =
getNode().client().count(countRequest(getIndex()).query(fieldQuery("_id", id))).actionGet();
logger.debug("Count after delete request: {}", countResponse.getCount());
assertThat(countResponse.getCount(), equalTo(0L));
}
/**
* Queries GridFS for the cover image binary and sends it to the user.
*
* @param isbn Match against the aliases of all files in the GridFS store.
* @return Matched file, or nothing if not found.
*/
public static Result cover(String isbn) {
GridFSDBFile cover = Book.findCoverByISBN(isbn);
response().setContentType("image/gif");
if (null != cover) {
return ok(cover.getInputStream());
} else {
return notFound();
}
}
/**
* 生成随机默认头像，如果存在原图，则查询各个尺寸头像，对不存在的头像重新用原图生成
*
* @param userId
* @param userName
* @return
*/
public void avatarGenerate(String userId, String userName) {
// 获取缩略名字
userName = DefaultAvatarGeneratorService.obatainName(userName);
// 判断是否有初始头像，如果有用初始头像切割小头像，然后组装
// 如果没有则随机选择一个初始头像，添加姓名水印后切割小头像，其实是一种容错机制
GridFSDBFile intinalAvatarFile =
imageStoreService.get(AvatarIdGenerator.obtainMobileLargeAvatarId(userId));
// 要裁剪的尺寸
List<Double> thumbnailSizeList = SnapFileConfigUtils.obtainAvatarScaleSizes();
int number = 0;
BufferedImage bimage = null;
if (intinalAvatarFile == null) {
Random random = new Random();
number = random.nextInt(DefaultAvatarCacheService.DEFAULT_AVATAR_NUMBER);
number++;
bimage = DefaultAvatarCacheService.obtainCacheRandomAvatar(number);
// 如果姓名不为空，加水印随机图片
if (!StringUtils.isEmpty(userName)) {
drawName(bimage, userName);
}
} else {
try {
bimage = ImageIO.read(intinalAvatarFile.getInputStream());
thumbnailSizeList = this.obtainThumbnailSizeList(userId);
} catch (IOException e) {
e.printStackTrace();
}
}
int width = bimage.getWidth();
int height = bimage.getHeight();
ByteArrayOutputStream bs = new ByteArrayOutputStream();
ImageOutputStream imOut;
try {
imOut = ImageIO.createImageOutputStream(bs);
ImageIO.write(bimage, "png", imOut);
// 存储原图到数据库
imageService.uploadTempLogo(new ByteArrayInputStream(bs.toByteArray()), userId);
} catch (IOException e) {
Logger.error("上传随机头像出错", e);
e.printStackTrace();
}
if (!thumbnailSizeList.isEmpty()) {
// 生成切割小图片，存入数据库
imageService.rectAndStoreAvatar(
userId, 0, 0, width, height, thumbnailSizeList, AvatarIdGenerator.USER_TYPE);
}
}
/**
* Update the GridFSDBFile in the associated DB with the key/values in updateKeys
*
* @param updateKeys Map of new tag data
* @param file GridFSDBFile to update with tag data
* @param db
* @param songId ID of Song to update with tag data
* @return
*/
public static boolean updateFile(
Map<String, String> updateKeys,
GridFSDBFile file,
DB db,
ObjectId songId) { // TODO updateKeys?
File audioFile = null;
try {
audioFile = File.createTempFile("tmp", ".mp3");
} catch (IOException e) {
log.error("tmp file not created", e);
}
audioFile.deleteOnExit();
AudioFile f = null;
ObjectId id = (ObjectId) file.getId();
ObjectId oid = null;
try {
file.writeTo(audioFile);
f = AudioFileIO.read(audioFile);
Tag tag = f.getTagOrCreateAndSetDefault();
DBObject q = new BasicDBObject("_id", songId);
DBObject o = new BasicDBObject("$set", new BasicDBObject(updateKeys));
if (updateKeys.get("artist") != null) {
tag.setField(FieldKey.ARTIST, updateKeys.get("artist"));
}
if (updateKeys.get("album") != null) {
tag.setField(FieldKey.ALBUM, updateKeys.get("album"));
}
if (updateKeys.get("title") != null) {
tag.setField(FieldKey.TITLE, updateKeys.get("title"));
}
if (updateKeys.get("track") != null) {
tag.setField(FieldKey.TRACK, updateKeys.get("track"));
}
if (updateKeys.get("year") != null) {
tag.setField(FieldKey.YEAR, updateKeys.get("year"));
}
AudioFileIO.write(f);
GridFS myFS = new GridFS(db);
myFS.remove(id);
GridFSInputFile inputFile =
putSongFileInDB(f.getFile(), db, file.getContentType(), file.getFilename(), id);
oid = (ObjectId) inputFile.getId();
if (oid.equals(id)) {
db.getCollection("songs").update(q, o);
}
} catch (KeyNotFoundException knfe) {
log.error("key not found", knfe);
} catch (FieldDataInvalidException fdie) {
log.error("tried to set field with invalid value", fdie);
} catch (Exception e) {
log.error("error reading/writing file", e);
}
return (oid.equals(id));
}
private void writeResponse(GridFSDBFile file, HttpServletResponse response) throws IOException {
if (file != null) {
byte[] data = IOUtils.toByteArray(file.getInputStream());
response.setContentType(file.getContentType());
response.setContentLength((int) file.getLength());
response.getOutputStream().write(data);
response.getOutputStream().flush();
} else {
response.setStatus(HttpStatus.NOT_FOUND.value());
}
}
public static Result getBeerImg(String id) {
GridFSDBFile img = gfs.find(new ObjectId(id));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
img.writeTo(baos);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ok(baos.toByteArray()).as("image/png");
}
@Override
public InputStream getAvatar(String userName) {
GridFS avatarFS = new GridFS(m_template.getDb());
GridFSDBFile imageForOutput = avatarFS.findOne(String.format(AVATAR_NAME, userName));
if (imageForOutput != null) {
return imageForOutput.getInputStream();
}
// try default avatar
imageForOutput = avatarFS.findOne(String.format(AVATAR_NAME, "default"));
if (imageForOutput != null) {
return imageForOutput.getInputStream();
}
return null;
}
@GET
@Path("/{id}")
public javax.ws.rs.core.Response getAttachment(@PathParam("id") final String id)
throws IOException {
final DB db = this.client.getDB("grid");
final GridFS gridFS = new GridFS(db);
final GridFSDBFile file = gridFS.findOne(id);
// log.info(file);
if (file == null) {
throw new WebApplicationException(404);
}
return Response.ok(
org.apache.commons.io.IOUtils.toByteArray(file.getInputStream()), file.getContentType())
.build();
}
@Test
public void shouldStoreFileInMultipleChunks() throws Exception {
final byte[] data = new byte[] {1, 2, 3, 4, 5};
final GridFSInputFile file = fs.createFile(data);
file.setChunkSize(3); // chunk size is less than data size in order to get more than one chunk
file.save();
final GridFSDBFile result = fs.findOne((ObjectId) file.getId());
final ByteArrayOutputStream out = new ByteArrayOutputStream();
assertEquals(data.length, result.writeTo(out));
assertArrayEquals(data, out.toByteArray());
}
@GET
@Path("{objectid}")
public Response getImage(
@PathParam("objectid") String objectId, @HeaderParam("If-Modified-Since") String modified) {
GridFSDBFile mongoFile = imageRepository.getImage(objectId);
if (mongoFile != null) {
if (modified != null) {
if (new Date(modified).before(mongoFile.getUploadDate())) {
return Response.status(Status.NOT_MODIFIED).build();
}
}
return Response.ok(mongoFile.getInputStream(), mongoFile.getContentType())
.lastModified(mongoFile.getUploadDate())
.build();
}
return Response.status(Status.NOT_FOUND).build();
}
@Override
protected boolean has(String objectKey) {
Query query = new Query(Criteria.where("filename").is(objectKey));
GridFSDBFile file = this.template.findOne(query);
if (file == null) {
return false;
}
// check for expiry
Long expiry = (Long) file.get(FIELD_EXPIRY);
if (expiry != null) {
if (expiry.longValue() < System.currentTimeMillis()) {
this.remove(objectKey);
return false;
}
}
return true;
}
public static void main(String[] args) throws Exception {
MongoClient client = new MongoClient();
DB db = client.getDB("course");
FileInputStream inputStream = null;
GridFS videos =
new GridFS(db, "video"); // does not create new GridFS it just gives object to manipulate it
// returns bucket named video
try {
inputStream = new FileInputStream("BinarySearch.mp4");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
GridFSInputFile video = videos.createFile(inputStream, "BinarySearch.mp4");
BasicDBObject meta = new BasicDBObject("description", "Binary Search");
ArrayList<String> tags = new ArrayList<String>();
tags.add("search");
tags.add("data structures");
meta.append("tags", tags);
video.setMetaData(meta);
video.save();
System.out.println(video.get("_id"));
System.out.println("file saved");
System.out.println("reading file from mongo");
GridFSDBFile dbFile = videos.findOne(new BasicDBObject("filename", "BinarySearch.mp4"));
FileOutputStream outputStream = new FileOutputStream("BinarySearch_copy.mp4");
dbFile.writeTo(outputStream);
}
@RequestMapping(value = "/getPhoto/{code}", method = RequestMethod.GET)
public @ResponseBody ResponseEntity<byte[]> getCodableDTO(@PathVariable("code") String code) {
System.out.println("finding getCodableDTO: code: " + code);
try {
// List<GridFSDBFile> result = gridFsTemplate.find(new
// Query().addCriteria(Criteria.where("filename").is(code)));
GridFSDBFile gridFsFile =
gridFsTemplate.findOne(new Query().addCriteria(Criteria.where("_id").is(code)));
final HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.IMAGE_JPEG);
return new ResponseEntity<>(
IOUtils.toByteArray(gridFsFile.getInputStream()), headers, HttpStatus.CREATED);
} catch (Exception e) {
System.out.println("eeeeeeeey get photo " + e);
return null;
}
}
@Override
protected UrnObject get(String objectKey) {
Query query = new Query(Criteria.where("filename").is(objectKey));
GridFSDBFile file = this.template.findOne(query);
if (file == null) {
return null;
}
// check for expiry
Long expiry = (Long) file.get(FIELD_EXPIRY);
if (expiry != null) {
if (expiry.longValue() < System.currentTimeMillis()) {
this.remove(objectKey);
return null;
}
}
byte[] bytes = null;
try {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
file.writeTo(stream);
stream.close();
bytes = stream.toByteArray();
} catch (IOException e) {
LOGGER.error("Error reading file from mongo database for key: " + objectKey, e);
return null;
}
UrnObject urnObject = new UrnObject(objectKey, bytes);
// now the metadata
if (expiry != null) {
urnObject.expiry = expiry.longValue();
}
urnObject.name = (String) file.get(FIELD_NAME);
urnObject.mime = file.getContentType();
urnObject.stored = file.getUploadDate().getTime();
// return the object
return urnObject;
}
private Timestamp<?> processOplogEntry(final DBObject entry, final Timestamp<?> startTimestamp)
throws InterruptedException {
// To support transactions, TokuMX wraps one or more operations in a single oplog entry, in a
// list.
// As long as clients are not transaction-aware, we can pretty safely assume there will only be
// one operation in the list.
// Supporting genuine multi-operation transactions will require a bit more logic here.
flattenOps(entry);
if (!isValidOplogEntry(entry, startTimestamp)) {
return startTimestamp;
}
Operation operation = Operation.fromString(entry.get(MongoDBRiver.OPLOG_OPERATION).toString());
String namespace = entry.get(MongoDBRiver.OPLOG_NAMESPACE).toString();
String collection = null;
Timestamp<?> oplogTimestamp = Timestamp.on(entry);
DBObject object = (DBObject) entry.get(MongoDBRiver.OPLOG_OBJECT);
if (definition.isImportAllCollections()) {
if (namespace.startsWith(definition.getMongoDb()) && !namespace.equals(cmdOplogNamespace)) {
collection = getCollectionFromNamespace(namespace);
}
} else {
collection = definition.getMongoCollection();
}
if (namespace.equals(cmdOplogNamespace)) {
if (object.containsField(MongoDBRiver.OPLOG_DROP_COMMAND_OPERATION)) {
operation = Operation.DROP_COLLECTION;
if (definition.isImportAllCollections()) {
collection = object.get(MongoDBRiver.OPLOG_DROP_COMMAND_OPERATION).toString();
if (collection.startsWith("tmp.mr.")) {
return startTimestamp;
}
}
}
if (object.containsField(MongoDBRiver.OPLOG_DROP_DATABASE_COMMAND_OPERATION)) {
operation = Operation.DROP_DATABASE;
}
}
logger.trace("namespace: {} - operation: {}", namespace, operation);
if (namespace.equals(MongoDBRiver.OPLOG_ADMIN_COMMAND)) {
if (operation == Operation.COMMAND) {
processAdminCommandOplogEntry(entry, startTimestamp);
return startTimestamp;
}
}
if (logger.isTraceEnabled()) {
logger.trace("MongoDB object deserialized: {}", object.toString());
logger.trace("collection: {}", collection);
logger.trace("oplog entry - namespace [{}], operation [{}]", namespace, operation);
logger.trace("oplog processing item {}", entry);
}
String objectId = getObjectIdFromOplogEntry(entry);
if (operation == Operation.DELETE) {
// Include only _id in data, as vanilla MongoDB does, so transformation scripts won't be
// broken by Toku
if (object.containsField(MongoDBRiver.MONGODB_ID_FIELD)) {
if (object.keySet().size() > 1) {
entry.put(
MongoDBRiver.OPLOG_OBJECT,
object = new BasicDBObject(MongoDBRiver.MONGODB_ID_FIELD, objectId));
}
} else {
throw new NullPointerException(MongoDBRiver.MONGODB_ID_FIELD);
}
}
if (definition.isMongoGridFS()
&& namespace.endsWith(MongoDBRiver.GRIDFS_FILES_SUFFIX)
&& (operation == Operation.INSERT || operation == Operation.UPDATE)) {
if (objectId == null) {
throw new NullPointerException(MongoDBRiver.MONGODB_ID_FIELD);
}
GridFS grid = new GridFS(mongo.getDB(definition.getMongoDb()), collection);
GridFSDBFile file = grid.findOne(new ObjectId(objectId));
if (file != null) {
logger.info("Caught file: {} - {}", file.getId(), file.getFilename());
object = file;
} else {
logger.warn("Cannot find file from id: {}", objectId);
}
}
if (object instanceof GridFSDBFile) {
if (objectId == null) {
throw new NullPointerException(MongoDBRiver.MONGODB_ID_FIELD);
}
if (logger.isTraceEnabled()) {
logger.trace("Add attachment: {}", objectId);
}
addToStream(operation, oplogTimestamp, applyFieldFilter(object), collection);
} else {
if (operation == Operation.UPDATE) {
DBObject update = (DBObject) entry.get(MongoDBRiver.OPLOG_UPDATE);
logger.debug("Updated item: {}", update);
addQueryToStream(operation, oplogTimestamp, update, collection);
} else {
if (operation == Operation.INSERT) {
addInsertToStream(oplogTimestamp, applyFieldFilter(object), collection);
} else {
addToStream(operation, oplogTimestamp, applyFieldFilter(object), collection);
}
}
}
return oplogTimestamp;
}
@Test
public void testImportAttachment() throws Exception {
logger.debug("*** testImportAttachment ***");
try {
// createDatabase();
byte[] content = copyToBytesFromClasspath(TEST_ATTACHMENT_HTML);
logger.debug("Content in bytes: {}", content.length);
GridFS gridFS = new GridFS(mongoDB);
GridFSInputFile in = gridFS.createFile(content);
in.setFilename("test-attachment.html");
in.setContentType("text/html");
in.save();
in.validate();
String id = in.getId().toString();
logger.debug("GridFS in: {}", in);
logger.debug("Document created with id: {}", id);
GridFSDBFile out = gridFS.findOne(in.getFilename());
logger.debug("GridFS from findOne: {}", out);
out = gridFS.findOne(new ObjectId(id));
logger.debug("GridFS from findOne: {}", out);
Assert.assertEquals(out.getId(), in.getId());
Thread.sleep(wait);
refreshIndex();
CountResponse countResponse = getNode().client().count(countRequest(getIndex())).actionGet();
logger.debug("Index total count: {}", countResponse.getCount());
assertThat(countResponse.getCount(), equalTo(1l));
GetResponse getResponse = getNode().client().get(getRequest(getIndex()).id(id)).get();
logger.debug("Get request for id {}: {}", id, getResponse.isExists());
assertThat(getResponse.isExists(), equalTo(true));
// countResponse =
// getNode().client().count(countRequest(getIndex()).query(fieldQuery("_id",
// id))).actionGet();
// logger.debug("Index count for id {}: {}", id, countResponse.getCount());
// assertThat(countResponse.getCount(), equalTo(1l));
SearchResponse response =
getNode()
.client()
.prepareSearch(getIndex())
.setQuery(QueryBuilders.queryString("Aliquam"))
.execute()
.actionGet();
logger.debug("SearchResponse {}", response.toString());
long totalHits = response.getHits().getTotalHits();
logger.debug("TotalHits: {}", totalHits);
assertThat(totalHits, equalTo(1l));
gridFS.remove(new ObjectId(id));
Thread.sleep(wait);
refreshIndex();
getResponse = getNode().client().get(getRequest(getIndex()).id(id)).get();
logger.debug("Get request for id {}: {}", id, getResponse.isExists());
assertThat(getResponse.isExists(), equalTo(false));
// countResponse =
// getNode().client().count(countRequest(getIndex()).query(fieldQuery("_id",
// id))).actionGet();
// logger.debug("Count after delete request: {}", countResponse.getCount());
// assertThat(countResponse.getCount(), equalTo(0L));
} catch (Throwable t) {
logger.error("testImportAttachment failed.", t);
Assert.fail("testImportAttachment failed", t);
} finally {
// cleanUp();
}
}
@Override
public void touch() {
GridFSDBFile gridFSDBFile = getGridFSDBFile(getPath(), true);
gridFSDBFile.put("uploadDate", new Date());
gridFSDBFile.save();
}
