Example usage for com.mongodb.gridfs GridFS GridFS

Introduction

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

Prototype

public GridFS(final DB db, final String bucket) 

Source Link

Document

Creates a GridFS instance for the specified bucket in the given database.

Usage

From source file:com.card.loop.xyz.dao.LearningElementDAO.java

public boolean addFile(LearningElement le, File file) throws UnknownHostException, IOException {
    Mongo mongo = new Mongo(AppConfig.mongodb_host, AppConfig.mongodb_port);
    DB db = mongo.getDB(AppConfig.DATABASE_LOOP);

    GridFS gf = new GridFS(db, "le.meta");
    GridFSInputFile gfsFile = gf.createFile(file);
    gfsFile.setFilename(le.getFilename());
    gfsFile.setContentType(le.getContentType());
    gfsFile.put("_class", "com.card.loop.xyz.model.LearningElement");
    gfsFile.put("title", le.getTitle());
    gfsFile.put("filePath", le.getFilePath());
    gfsFile.put("subject", le.getSubject());
    gfsFile.put("description", le.getDescription());
    gfsFile.put("downloads", le.getDownloads());
    gfsFile.put("rating", le.getRating());
    gfsFile.put("comments", le.getComments());
    gfsFile.put("uploadedBy", le.getUploadedBy());
    gfsFile.put("status", le.getStatus());
    gfsFile.put("rev", le.getRev());
    gfsFile.put("type", le.getType());
    gfsFile.save();/*from w w w. ja  va2  s  .c  o m*/

    // Let's store our document to MongoDB
    /*   System.out.println("SEARCH: " + search(gfsFile.getMD5(), "le.meta"));
       if(search(gfsFile.getMD5(), "le.meta") > 1){            
    deleteLE(le.getFileName(),"le.meta");
       }*/
    //
    //   collection.insert(info, WriteConcern.SAFE);
    return true;
}

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From source file:com.card.loop.xyz.dao.LearningElementDAO.java

public ArrayList<DBObject> listAll(String collection) throws UnknownHostException {
    ArrayList<DBObject> list = new ArrayList<DBObject>();
    Mongo mongo = new Mongo(AppConfig.mongodb_host, AppConfig.mongodb_port);
    DB db = mongo.getDB(AppConfig.DATABASE_LOOP);
    GridFS le_gfs = new GridFS(db, collection);
    DBCursor cursor = le_gfs.getFileList();
    System.out.println(le_gfs.getFileList() + "");
    while (cursor.hasNext()) {
        list.add(cursor.next());//w  w w. j ava2 s . c  om
    }
    return list;
}

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From source file:com.card.loop.xyz.dao.LearningElementDAO.java

public GridFSDBFile getSingleLE(String id, String collection) throws UnknownHostException {
    Mongo mongo = new Mongo(AppConfig.mongodb_host, AppConfig.mongodb_port);
    DB db = mongo.getDB(AppConfig.DATABASE_LOOP);
    GridFS le_gfs = new GridFS(db, collection);
    // GridFSDBFile le_output = le_gfs.findOne(new ObjectId(id));
    GridFSDBFile le_output = le_gfs.findOne(new ObjectId(id));
    System.out.println(le_output);
    return le_output;
}

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From source file:com.card.loop.xyz.dao.LearningElementDAO.java

public ArrayList<String> getKeywords(String md5, String collection) throws UnknownHostException {
    Mongo mongo = new Mongo(AppConfig.mongodb_host, AppConfig.mongodb_port);
    DB db = mongo.getDB(AppConfig.DATABASE_LOOP);
    ArrayList<String> list = new ArrayList<>();
    GridFS le_gfs = new GridFS(db, collection);
    GridFSDBFile le_output = le_gfs.findOne(new BasicDBObject("md5", md5));
    ListIterator<Object> trustedList = ((BasicDBList) le_output.get("keywords")).listIterator();

    while (trustedList.hasNext()) {
        Object nextItem = trustedList.next();
        list.add(nextItem.toString());/*from ww w  . j av a  2s  .  c o m*/
    }
    return list;
}

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From source file:com.cloudbees.demo.beesshop.service.MongoDbFileStorageService.java

License:Apache License

@Autowired
public MongoDbFileStorageService(DB db) {
    this.gridFS = new GridFS(db, "media");
}

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From source file:com.cognifide.aet.vs.artifacts.ArtifactsDAOMongoDBImpl.java

License:Apache License

private GridFS getGridFS(DBKey dbKey) {
    final String dbName = MongoDBClient.getDbName(dbKey.getCompany(), dbKey.getProject());
    return new GridFS(client.getDB(dbName, true), ARTIFACTS_COLLECTION_NAME);
}

---

From source file:com.cyslab.craftvm.rest.mongo.GridfsServlet.java

License:GNU General Public License

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

    log.trace("doPost()");

    if (!can_write(req)) {
        res.sendError(SC_UNAUTHORIZED);/*from  w w  w . j  a  v a2 s .  c om*/
        return;
    }

    InputStream tmp = req.getInputStream();
    InputStream is = new BufferedInputStream(tmp);
    String db_name = req.getParameter("dbname");
    String bucket_name = req.getParameter("bucketname");
    if (db_name == null || bucket_name == null) {
        String names[] = req2mongonames(req);
        if (names != null) {
            db_name = names[0];
            bucket_name = names[1];
        }
        if (db_name == null) {
            error(res, SC_BAD_REQUEST, Status.get("param name missing"));
            return;
        }
    }

    if (bucket_name == null)
        bucket_name = "fs";

    String file_name = req.getParameter("filename");

    if (file_name == null) {
        error(res, SC_BAD_REQUEST, Status.get("param name missing"));
        return;
    }

    DB db = mongo.getDB(db_name);

    String fs_cache_key = db_name + bucket_name;
    GridFS fs = fs_cache.get(fs_cache_key);
    if (fs == null) {
        fs = new GridFS(db, bucket_name);
        fs_cache.put(fs_cache_key, fs);
    }

    GridFSDBFile db_file_old = fs.findOne(file_name);
    if (db_file_old == null) {
        error(res, SC_NOT_FOUND, Status.get("file doe not exists, use PUT"));
        return;
    }

    String ct = req.getContentType();
    GridFSInputFile db_file = fs.createFile(file_name);
    if (ct != null)
        db_file.setContentType(ct);
    OutputStream os = db_file.getOutputStream();

    final int len = 4096;
    byte data[] = new byte[len];
    int n = 0, bytesno = 0;
    while ((n = is.read(data, 0, len)) > 0) {
        os.write(data, 0, n);
        bytesno += n;
    }
    os.close();

    if (is != null)
        is.close();

    out_json(req, Status.OK);

}

---

From source file:com.cyslab.craftvm.rest.mongo.GridfsServlet.java

License:GNU General Public License

@Override
protected void doPut(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

    log.trace("doPut()");

    if (!can_write(req)) {
        res.sendError(SC_UNAUTHORIZED);//from   www .j  ava 2s  .  co  m
        return;
    }

    InputStream tmp = req.getInputStream();
    InputStream is = new BufferedInputStream(tmp);
    String db_name = req.getParameter("dbname");
    String bucket_name = req.getParameter("bucketname");
    if (db_name == null || bucket_name == null) {
        String names[] = req2mongonames(req);
        if (names != null) {
            db_name = names[0];
            bucket_name = names[1];
        }
        if (db_name == null) {
            error(res, SC_BAD_REQUEST, Status.get("param name missing"));
            return;
        }
    }

    if (bucket_name == null)
        bucket_name = "fs";

    String file_name = req.getParameter("filename");

    if (file_name == null) {
        error(res, SC_BAD_REQUEST, Status.get("param name missing"));
        return;
    }

    DB db = mongo.getDB(db_name);

    String fs_cache_key = db_name + bucket_name;
    GridFS fs = fs_cache.get(fs_cache_key);
    if (fs == null) {
        fs = new GridFS(db, bucket_name);
        fs_cache.put(fs_cache_key, fs);
    }

    GridFSDBFile db_file_old = fs.findOne(file_name);
    if (db_file_old != null) {
        error(res, SC_BAD_REQUEST, Status.get("file already exists, use POST"));
        return;
    }

    String ct = req.getContentType();
    GridFSInputFile db_file = fs.createFile(file_name);
    if (ct != null)
        db_file.setContentType(ct);
    OutputStream os = db_file.getOutputStream();

    final int len = 4096;
    byte data[] = new byte[len];
    int n = 0, bytesno = 0;
    while ((n = is.read(data, 0, len)) > 0) {
        os.write(data, 0, n);
        bytesno += n;
    }
    os.flush();
    os.close();

    if (is != null)
        is.close();

    out_json(req, Status.OK);

}

---

From source file:com.cyslab.craftvm.rest.mongo.GridfsServlet.java

License:GNU General Public License

@Override
protected void doDelete(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

    log.trace("doDelete()");

    if (!can_write(req)) {
        res.sendError(SC_UNAUTHORIZED);/*  ww w  .  java2s  .c o m*/
        return;
    }

    String db_name = req.getParameter("dbname");
    String bucket_name = req.getParameter("bucketname");
    if (db_name == null || bucket_name == null) {
        String names[] = req2mongonames(req);
        if (names != null) {
            db_name = names[0];
            bucket_name = names[1];
        }
        if (db_name == null) {
            error(res, SC_BAD_REQUEST, Status.get("param name missing"));
            return;
        }
    }

    if (bucket_name == null)
        bucket_name = "fs";

    DB db = mongo.getDB(db_name);

    String fs_cache_key = db_name + bucket_name;
    GridFS fs = fs_cache.get(fs_cache_key);
    if (fs == null) {
        fs = new GridFS(db, bucket_name);
        fs_cache.put(fs_cache_key, fs);
    }

    // mongo auth
    String user = req.getParameter("user");
    String passwd = req.getParameter("passwd");
    if (user != null && passwd != null && (!db.isAuthenticated())) {
        boolean auth = db.authenticate(user, passwd.toCharArray());
        if (!auth) {
            res.sendError(SC_UNAUTHORIZED);
            return;
        }
    }

    String file_name = req.getParameter("filename");

    if (file_name == null) {
        error(res, SC_BAD_REQUEST, Status.get("param name missing"));
        return;
    }

    fs.remove(file_name);

    out_json(req, Status.OK);

}

---

From source file:com.cyslab.craftvm.rest.mongo.GridfsServlet.java

License:GNU General Public License

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

    log.trace("doGet()");

    if (!can_read(req)) {
        res.sendError(SC_UNAUTHORIZED);//from ww w. ja  v  a2 s.  c o  m
        return;
    }

    String db_name = req.getParameter("dbname");
    String bucket_name = req.getParameter("bucketname");
    if (db_name == null || bucket_name == null) {
        String names[] = req2mongonames(req);
        if (names != null) {
            db_name = names[0];
            bucket_name = names[1];
        }
        if (db_name == null) {
            error(res, SC_BAD_REQUEST, Status.get("param name missing"));
            return;
        }
    }

    if (bucket_name == null)
        bucket_name = "fs";

    DB db = mongo.getDB(db_name);

    String fs_cache_key = db_name + bucket_name;
    GridFS fs = fs_cache.get(fs_cache_key);
    if (fs == null) {
        fs = new GridFS(db, bucket_name);
        fs_cache.put(fs_cache_key, fs);
    }

    // mongo auth
    String user = req.getParameter("user");
    String passwd = req.getParameter("passwd");
    if (user != null && passwd != null && (!db.isAuthenticated())) {
        boolean auth = db.authenticate(user, passwd.toCharArray());
        if (!auth) {
            res.sendError(SC_UNAUTHORIZED);
            return;
        }
    }

    String op = req.getParameter("op");
    if (op == null)
        op = "get";

    StringBuilder buf = tl.get();
    // reset buf
    buf.setLength(0);

    // list
    if ("get".equals(op)) {

        String file_name = req.getParameter("filename");
        if (file_name == null) {
            error(res, SC_BAD_REQUEST, Status.get("param name missing"));
            return;
        }

        GridFSDBFile db_file = fs.findOne(file_name);
        if (db_file == null) {
            error(res, SC_NOT_FOUND, Status.get("file does not exists"));
            return;
        }

        res.setContentLength((int) db_file.getLength());
        String ct = db_file.getContentType();
        if (ct != null)
            res.setContentType(ct);
        OutputStream os = res.getOutputStream();
        long l;
        while ((l = db_file.writeTo(os)) > 0)
            ;
        os.flush();
        os.close();

    }
    // list
    else if ("list".equals(op)) {

        DBCursor c = fs.getFileList();
        if (c == null) {
            error(res, SC_NOT_FOUND, Status.get("no documents found"));
            return;
        }

        int no = 0;
        buf.append("[");
        while (c.hasNext()) {

            DBObject o = c.next();
            JSON.serialize(o, buf);
            buf.append(",");
            no++;

        }

        if (no > 0)
            buf.setCharAt(buf.length() - 1, ']');
        else
            buf.append(']');

        out_str(req, buf.toString(), "application/json");

    }
    // info
    else if ("info".equals(op)) {

        String file_name = req.getParameter("filename");
        if (file_name == null) {
            error(res, SC_BAD_REQUEST, Status.get("param name missing"));
            return;
        }

        GridFSDBFile db_file = fs.findOne(file_name);
        if (db_file == null) {
            error(res, SC_NOT_FOUND, Status.get("no documents found"));
            return;
        }

        buf.append("{");
        buf.append(String.format("\"ContentType\":%s,", db_file.getContentType()));
        buf.append(String.format("\"Length\":%d,", db_file.getLength()));
        buf.append(String.format("\"MD5\":%s", db_file.getMD5()));
        buf.append("}");

        out_str(req, buf.toString(), "application/json");

    } else
        res.sendError(SC_BAD_REQUEST);

}

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