Example usage for com.mongodb.client.gridfs GridFSBucket find

Introduction

In this page you can find the example usage for com.mongodb.client.gridfs GridFSBucket find.

Prototype

GridFSFindIterable find(ClientSession clientSession);

Source Link

Document

Finds all documents in the files collection.

Usage

From source file:org.restheart.db.GridFsDAO.java

License:Open Source License

@Override
public OperationResult deleteFile(final Database db, final String dbName, final String bucketName,
        final BsonObjectId 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);
            }//  w  w  w .  j  a  v a  2  s  .c  o  m
        }
    }

    gridFSBucket.delete(fileId.asObjectId().getValue());

    return new OperationResult(HttpStatus.SC_NO_CONTENT);
}

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From source file:org.restheart.handlers.files.GetFileBinaryHandler.java

License:Open Source License

@Override
public void handleRequest(HttpServerExchange exchange, RequestContext context) throws Exception {
    if (context.isInError()) {
        next(exchange, context);/*from   w ww.ja v a 2  s. co m*/
        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(gridFSBucket, dbsfile, exchange);
    }

    next(exchange, context);
}

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