本文整理汇总了Java中com.mongodb.client.gridfs.model.GridFSFile类的典型用法代码示例。如果您正苦于以下问题:Java GridFSFile类的具体用法?Java GridFSFile怎么用?Java GridFSFile使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
GridFSFile类属于com.mongodb.client.gridfs.model包,在下文中一共展示了GridFSFile类的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: validateAfterStoreAdd
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
protected void validateAfterStoreAdd(TestContext context, Vertx vertx,
String path, Handler<AsyncResult<Void>> handler) {
vertx.executeBlocking(f -> {
try (MongoClient client = new MongoClient(mongoConnector.serverAddress)) {
MongoDatabase db = client.getDatabase(MongoDBTestConnector.MONGODB_DBNAME);
GridFSBucket gridFS = GridFSBuckets.create(db);
GridFSFindIterable files = gridFS.find();
GridFSFile file = files.first();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
gridFS.downloadToStream(file.getFilename(), baos);
String contents = new String(baos.toByteArray(), StandardCharsets.UTF_8);
context.assertEquals(CHUNK_CONTENT, contents);
}
f.complete();
}, handler);
}
示例2: checkAndCleanup
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
public boolean checkAndCleanup(String userId, String fileName) {
List<Document> l = query(new Query().equals(USERID, userId).addSortCriteria(CREATION_TIME, false));
if (l.size() >= maxPersistedPagesPerUser) {
Document oldest = l.iterator().next();
if ((System.currentTimeMillis() - oldest.get(CREATION_TIME).getTime()) < minimumDelay) {
//there have been to many page persistences for this user in a short time, so don't persist
return false;
} else {
//clean up oldest to free space for new persisted page
gridFS.find(Filters.eq("filename", oldest.get(FILENAME))).forEach(new Block<GridFSFile>() {
@Override
public void apply(GridFSFile file) {
gridFS.delete(file.getObjectId());
}
});
oldest.delete();
}
}
//create new entry
Document newOne = createNew();
newOne.set(USERID, userId);
newOne.set(FILENAME, fileName);
newOne.set(CREATION_TIME, new Date());
newOne.writeToDatabase(false);
return true;
}
示例3: byPages
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public void byPages(int pageSize, Callback callback) {
MongoCursor<GridFSFile> cursor = bucket.find().iterator();
boolean loop = true;
try {
while (loop) {
List<GridFSFile> files = new ArrayList<>(batchSize);
int i = 0;
while (cursor.hasNext() && i < batchSize) {
files.add(cursor.next());
i++;
}
loop = callback.on(files.stream().map(file -> bucket.openDownloadStream(file.getObjectId())).map(fromFile).collect(Collectors.toList()));
}
} finally {
cursor.close();
}
}
示例4: getAssociatedDocumentStream
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public InputStream getAssociatedDocumentStream(String uniqueId, String fileName) {
GridFSBucket gridFS = createGridFSConnection();
GridFSFile file = gridFS.find(new Document(ASSOCIATED_METADATA + "." + FILE_UNIQUE_ID_KEY, getGridFsId(uniqueId, fileName))).first();
if (file == null) {
return null;
}
InputStream is = gridFS.openDownloadStream(file.getObjectId());
;
Document metadata = file.getMetadata();
if (metadata.containsKey(COMPRESSED_FLAG)) {
boolean compressed = (boolean) metadata.remove(COMPRESSED_FLAG);
if (compressed) {
is = new InflaterInputStream(is);
}
}
return is;
}
示例5: findMetadata
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
public Document findMetadata(String oid) {
GridFSFile first = fileStore.find(eq("_id", new ObjectId(oid))).first();
if(first == null) {
return null;
} else {
return first.getMetadata();
}
}
示例6: toSmofGridRef
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
private SmofGridRef toSmofGridRef(BsonDocument refBson) {
final String bucketName = refBson.getString("bucket").getValue();
final ObjectId id = refBson.getObjectId("id").getValue();
final SmofGridRef ref = SmofGridRefFactory.newFromDB(id, bucketName);
final GridFSFile file = dispatcher.loadMetadata(ref);
ref.putMetadata(file.getMetadata());
return ref;
}
示例7: testMetadata
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Test
public final void testMetadata() throws IOException {
final Document metadata = new Document("randomkey", 45);
ref.putMetadata(metadata);
streamManager.uploadFile(ref);
ref.putMetadata(new Document());
final GridFSFile file = streamManager.loadFileMetadata(ref);
assertEquals(metadata, file.getMetadata());
}
示例8: deleteFile
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
public void deleteFile(Document mo) {
String filename = mo.get(this);
if (filename != null) {
fileSystemProvider.getFileSystem().find(Filters.eq("filename", filename)).forEach(new Block<GridFSFile>() {
@Override
public void apply(GridFSFile file) {
fileSystemProvider.getFileSystem().delete(file.getObjectId());
}
});
mo.getDataObject().remove(this.getName());
// mo.writeToDatabase(false);
}
}
示例9: first
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public Observable<GridFSFile> first() {
return RxObservables.create(Observables.observe(new Block<SingleResultCallback<GridFSFile>>(){
@Override
public void apply(final SingleResultCallback<GridFSFile> callback) {
wrapped.first(callback);
}
}), observableAdapter);
}
示例10: getGridFSFile
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public Observable<GridFSFile> getGridFSFile() {
return RxObservables.create(Observables.observe(new Block<SingleResultCallback<GridFSFile>>() {
@Override
public void apply(final SingleResultCallback<GridFSFile> callback) {
wrapped.getGridFSFile(callback);
}
}), observableAdapter);
}
示例11: getGridFSFile
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public Publisher<GridFSFile> getGridFSFile() {
return new ObservableToPublisher<GridFSFile>(observe(new Block<SingleResultCallback<GridFSFile>>() {
@Override
public void apply(final SingleResultCallback<GridFSFile> callback) {
wrapped.getGridFSFile(callback);
}
}));
}
示例12: first
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public Publisher<GridFSFile> first() {
return new ObservableToPublisher<GridFSFile>(observe(new Block<SingleResultCallback<GridFSFile>>(){
@Override
public void apply(final SingleResultCallback<GridFSFile> callback) {
wrapped.first(callback);
}
}));
}
示例13: deleteFile
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public OperationResult deleteFile(
final Database db,
final String dbName,
final String bucketName,
final BsonValue fileId,
final String requestEtag,
final boolean checkEtag) {
final String bucket = extractBucketName(bucketName);
GridFSBucket gridFSBucket = GridFSBuckets.create(
db.getDatabase(dbName),
bucket);
GridFSFile file = gridFSBucket
.find(eq("_id", fileId))
.limit(1).iterator().tryNext();
if (file == null) {
return new OperationResult(HttpStatus.SC_NOT_FOUND);
} else if (checkEtag) {
Object oldEtag = file.getMetadata().get("_etag");
if (oldEtag != null) {
if (requestEtag == null) {
return new OperationResult(HttpStatus.SC_CONFLICT, oldEtag);
} else if (!Objects.equals(oldEtag.toString(), requestEtag)) {
return new OperationResult(
HttpStatus.SC_PRECONDITION_FAILED, oldEtag);
}
}
}
gridFSBucket.delete(fileId);
return new OperationResult(HttpStatus.SC_NO_CONTENT);
}
示例14: handleRequest
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
@Override
public void handleRequest(
HttpServerExchange exchange,
RequestContext context)
throws Exception {
if (context.isInError()) {
next(exchange, context);
return;
}
LOGGER.trace("GET " + exchange.getRequestURL());
final String bucket = extractBucketName(context.getCollectionName());
GridFSBucket gridFSBucket = GridFSBuckets.create(
MongoDBClientSingleton.getInstance().getClient()
.getDatabase(context.getDBName()),
bucket);
GridFSFile dbsfile = gridFSBucket
.find(eq("_id", context.getDocumentId()))
.limit(1).iterator().tryNext();
if (dbsfile == null) {
fileNotFound(context, exchange);
} else if (!checkEtag(exchange, dbsfile)) {
sendBinaryContent(context, gridFSBucket, dbsfile, exchange);
}
next(exchange, context);
}
示例15: checkEtag
import com.mongodb.client.gridfs.model.GridFSFile; //导入依赖的package包/类
private boolean checkEtag(HttpServerExchange exchange, GridFSFile dbsfile) {
if (dbsfile != null) {
Object etag;
if (dbsfile.getMetadata() != null
&& dbsfile.getMetadata().containsKey("_etag")) {
etag = dbsfile.getMetadata().get("_etag");
} else {
etag = null;
}
if (etag != null && etag instanceof ObjectId) {
ObjectId _etag = (ObjectId) etag;
BsonObjectId __etag = new BsonObjectId(_etag);
// in case the request contains the IF_NONE_MATCH header with the current etag value,
// just return 304 NOT_MODIFIED code
if (RequestHelper.checkReadEtag(exchange, __etag)) {
exchange.setStatusCode(HttpStatus.SC_NOT_MODIFIED);
exchange.endExchange();
return true;
}
}
}
return false;
}