Example usage for com.mongodb DBObject removeField

List of usage examples for com.mongodb DBObject removeField

  1. HOME
  2. Java
  3. com.mongodb
  4. com.mongodb.*
  5. DBObject
  6. removeField

Introduction

In this page you can find the example usage for com.mongodb DBObject removeField.

Prototype

Object removeField(String key);

Source Link

Document

Removes a field with a given name from this object.

Usage

From source file:act.shared.helpers.XMLToImportantChemicals.java

License:Open Source License

private void process(XMLStreamReader xml) throws XMLStreamException {
    String tag;/*w ww . ja  v a2s.  com*/
    String root = null;
    Stack<DBObject> json = new Stack<DBObject>();
    DBObject js;
    while (xml.hasNext()) {
        int eventType = xml.next();
        while (xml.isWhiteSpace() || eventType == XMLEvent.SPACE)
            eventType = xml.next();

        switch (eventType) {
        case XMLEvent.START_ELEMENT:
            tag = xml.getLocalName();
            if (root == null) {
                root = tag;
            } else {
                json.push(new BasicDBObject());
            }
            break;
        case XMLEvent.END_ELEMENT:
            tag = xml.getLocalName();
            if (tag.equals(root)) {
                // will terminate in next iteration
            } else {
                js = json.pop();
                if (json.size() == 0) {
                    if (tag.equals(rowTag))
                        printEntry(js);
                    else
                        printUnwantedEntry(js);
                } else {
                    putListStrOrJSON(json.peek(), tag, js);
                }
            }
            break;

        case XMLEvent.CHARACTERS:
            String txt = xml.getText();
            js = json.peek();
            if (js.containsField(strTag)) {
                txt = js.get(strTag) + txt;
                js.removeField(strTag);
            }
            js.put(strTag, txt);
            break;

        case XMLEvent.START_DOCUMENT:
            break;
        case XMLEvent.END_DOCUMENT:
            break;
        case XMLEvent.COMMENT:
        case XMLEvent.ENTITY_REFERENCE:
        case XMLEvent.ATTRIBUTE:
        case XMLEvent.PROCESSING_INSTRUCTION:
        case XMLEvent.DTD:
        case XMLEvent.CDATA:
        case XMLEvent.SPACE:
            System.out.format("%s --\n", eventType);
            break;
        }
    }
}

From source file:act.shared.helpers.XMLToImportantChemicals.java

License:Open Source License

private void putElemOrList(DBObject json, String tag, Object add) {
    // if tag already present then make it a list
    if (json.containsField(tag)) {
        BasicDBList l;/*ww w.j a v a  2 s.co m*/
        Object already = json.get(tag);
        if (already instanceof BasicDBList) {
            l = (BasicDBList) already;
        } else {
            l = new BasicDBList();
            l.add(already);
        }
        l.add(add);
        json.removeField(tag);
        json.put(tag, l);
        return;
    }

    // else, just add as is
    json.put(tag, add);
    return;
}

From source file:br.ufabc.impress.mongo.manager.DBHelper.java

@Override
public List<Boolean> modifyNotOveride(String tableName, String json, String _id) {
    if (tableName == null || tableName.equals("") || json == null || json.equals("") || _id == null
            || _id.equals("")) {
        return null;
    }/*from   w w  w  . j  a  va 2 s .co m*/
    List<Boolean> resList = new ArrayList();
    DBCollection table = db.getCollection(tableName);
    DBCursor cursor = table.find();
    while (cursor.hasNext()) {
        DBObject updateDocument = cursor.next();
        DBObject searchQuery = cursor.next();
        DBObject dbObject = (DBObject) JSON.parse(json);
        updateDocument.putAll(dbObject.toMap());
        updateDocument.removeField("_id");
        WriteResult result = table.update(searchQuery, updateDocument);
        resList.add(result.isUpdateOfExisting());
    }
    return resList;
}

From source file:calliope.core.database.MongoConnection.java

License:Open Source License

/**
 * Get the metadata as a string/*from w w  w.j  ava 2s .c o m*/
 * @param docid its filename or docid
 * @return the metadata of the document as a string
 */
public String getMetadata(String docid) {
    try {
        connect();
        DBCollection collection = getCollectionFromName(Database.METADATA);
        DBObject query;
        query = new BasicDBObject(JSONKeys.DOCID, docid);
        DBObject obj = collection.findOne(query);
        if (obj != null) {
            obj.removeField(JSONKeys._ID);
            return obj.toString();
        } else
            return null;
    } catch (Exception e) {
        e.printStackTrace(System.out);
        return null;
    }
}

From source file:calliope.export.PDEFArchive.java

License:Open Source License

/**
 * Remove fields that will be added by the database after import
 * @param json the original JSON string/*from   ww w  . jav a2s . c  om*/
 * @return a possibly modified JSON string with the fields removed 
 */
private String removeTabooFields(String json) {
    boolean changed = false;
    DBObject jdoc = (DBObject) JSON.parse(json);
    for (int i = 0; i < tabooFields.length; i++) {
        if (jdoc.containsField(tabooFields[i])) {
            jdoc.removeField(tabooFields[i]);
            changed = true;
        }
    }
    if (changed)
        json = jdoc.toString();
    return json;
}

From source file:ch.windmobile.server.social.mongodb.UserServiceImpl.java

License:Open Source License

@Override
public List<Favorite> removeFromFavorites(String email, List<Favorite> favoritesToRemove) throws UserNotFound {
    if (email == null) {
        throw new IllegalArgumentException("Email cannot be null");
    }//from   w w w  .  ja va 2s .co  m
    DBCollection col = db.getCollection(MongoDBConstants.COLLECTION_USERS);
    // Search user by email
    DBObject userDb = col.findOne(new BasicDBObject(MongoDBConstants.USER_PROP_EMAIL, email));
    if (userDb == null) {
        throw new UserNotFound("Unable to find user with email '" + email + "'");
    }

    DBObject favoritesDb = (DBObject) userDb.get(MongoDBConstants.USER_PROP_FAVORITES);
    if (favoritesDb == null) {
        favoritesDb = new BasicDBObject();
    }

    if (favoritesToRemove != null) {
        for (Favorite favoriteToRemove : favoritesToRemove) {
            DBObject favoriteItemsDb = (DBObject) favoritesDb.get(favoriteToRemove.getStationId());
            if (favoriteItemsDb != null) {
                favoritesDb.removeField(favoriteToRemove.getStationId());
            }
        }
    }
    userDb.put(MongoDBConstants.USER_PROP_FAVORITES, favoritesDb);
    col.save(userDb);

    List<Favorite> returnValue = new ArrayList<Favorite>(favoritesDb.keySet().size());
    for (String stationId : favoritesDb.keySet()) {
        Favorite favorite = new Favorite();
        favorite.setStationId(stationId);
        DBObject favoriteItemDb = (DBObject) favoritesDb.get(stationId);
        favorite.setLastMessageId((Long) favoriteItemDb.get(MongoDBConstants.USER_PROP_FAVORITE_LASTMESSAGEID));
        returnValue.add(favorite);
    }
    return returnValue;
}

From source file:ch.windmobile.server.social.mongodb.UserServiceImpl.java

License:Open Source License

@Override
public void clearFavorites(String email) throws UserNotFound {
    if (email == null) {
        throw new IllegalArgumentException("Email cannot be null");
    }//from   ww  w .  j a v a2s  . co  m
    DBCollection col = db.getCollection(MongoDBConstants.COLLECTION_USERS);
    // Search user by email
    DBObject userDb = col.findOne(new BasicDBObject(MongoDBConstants.USER_PROP_EMAIL, email));
    if (userDb == null) {
        throw new UserNotFound("Unable to find user with email '" + email + "'");
    }

    userDb.removeField(MongoDBConstants.USER_PROP_FAVORITES);
    col.save(userDb);
}

From source file:com.andreig.jetty.QueryServlet.java

License:GNU General Public License

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

    log.fine("doPost()");

    // server auth
    if (!can_read(req)) {
        res.sendError(SC_UNAUTHORIZED);//from w  ww  .  j  av a2s  .  c om
        return;
    }

    String ret = null;

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

    String _fields = req.getParameter("fields");
    String fields[] = null;
    if (_fields != null)
        fields = _fields.split("[,]");

    DB db = mongo.getDB(db_name);

    // 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;
        }
    }

    DBCollection col = db.getCollection(col_name);

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

    BufferedReader r = null;
    DBObject q = null, sort = null;

    try {

        r = new BufferedReader(new InputStreamReader(is));
        String data = r.readLine();
        if (data == null) {
            error(res, SC_BAD_REQUEST, Status.get("no data"));
            return;
        }
        try {
            q = (DBObject) JSON.parse(data);
            if (cache != null) {
                buf.append(db_name);
                buf.append(col_name);
                buf.append(data);
            }
        } catch (JSONParseException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse data"));
            return;
        }
        // sort param
        data = r.readLine();
        if (data != null) {
            try {
                sort = (DBObject) JSON.parse(data);
            } catch (JSONParseException e) {
                error(res, SC_BAD_REQUEST, Status.get("can not parse sort arg"));
                return;
            }
            if (cache != null)
                buf.append(data);
        }

    } finally {
        if (r != null)
            r.close();
    }

    // limit
    int lim;
    if (limit != null) {
        try {
            lim = Math.min(Integer.parseInt(limit), MAX_FIELDS_TO_RETURN);
        } catch (NumberFormatException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse limit"));
            return;
        }
    } else {
        lim = MAX_FIELDS_TO_RETURN;
    }
    if (cache != null) {
        buf.append(";limit=");
        buf.append(lim);
    }

    // skip
    int sk = -1;
    if (skip != null) {
        try {
            sk = Integer.parseInt(skip);
            if (cache != null) {
                buf.append(";skip=");
                buf.append(sk);
            }
        } catch (NumberFormatException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse skip"));
            return;
        }
    }

    // fields
    if (cache != null && _fields != null) {
        buf.append(";fields=");
        buf.append(_fields);
    }

    // from cache
    String cache_key = null;
    if (cache != null) {
        cache_key = buf.toString();
        try {
            ret = (String) cache.get(cache_key);
        }
        // some wrong char in key
        catch (IllegalArgumentException e) {
            int l = buf.length();
            for (int i = 0; i < l; i++) {
                if (buf.charAt(i) == ' ')
                    buf.setCharAt(i, '*');
            }
            cache_key = buf.toString();
            ret = (String) cache.get(cache_key);
        }
        if (ret != null) {
            out_str(req, ret, "application/json");
            return;
        }
    }

    // cursor
    DBCursor c;
    if (fields != null) {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        int len = fields.length;
        for (int i = 0; i < len; i++) {
            String s = fields[i];
            sb.append('"');
            sb.append(s);
            sb.append('"');
            sb.append(":1");
            if (i != (len - 1))
                sb.append(",");
        }
        sb.append("}");
        c = col.find(q, (DBObject) JSON.parse(sb.toString()));
    } else
        c = col.find(q);

    if (c == null || c.count() == 0) {
        error(res, SC_NOT_FOUND, Status.get("no documents found"));
        return;
    }

    if (sort != null)
        c.sort(sort);

    res.setIntHeader("X-Documents-Count", c.count());

    c.limit(lim);
    if (sk != -1)
        c.skip(sk);

    // reset buf
    buf.setLength(0);

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

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

    }
    c.close();

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

    res.setIntHeader("X-Documents-Returned", no);

    ret = buf.toString();
    if (cache != null)
        cache.set(cache_key, ret);

    out_str(req, ret, "application/json");

}

From source file:com.andreig.jetty.QueryServlet.java

License:GNU General Public License

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

    log.fine("doGet()");

    if (!can_read(req)) {
        res.sendError(SC_UNAUTHORIZED);/*  w  w w. jav a2 s .com*/
        return;
    }

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

    DB db = mongo.getDB(db_name);

    // 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;
        }
    }

    DBCollection col = db.getCollection(col_name);

    DBCursor c = col.find();
    if (c == null || c.count() == 0) {
        error(res, SC_NOT_FOUND, Status.get("no documents found"));
        return;
    }

    res.setIntHeader("X-Documents-Count", c.count());

    if (limit != null) {
        try {
            c.limit(Math.min(Integer.parseInt(limit), MAX_FIELDS_TO_RETURN));
        } catch (NumberFormatException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse limit"));
            c.close();
            return;
        }
    } else
        c.limit(MAX_FIELDS_TO_RETURN);

    if (skip != null) {
        try {
            c.skip(Integer.parseInt(skip));
        } catch (NumberFormatException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse skip"));
            c.close();
            return;
        }
    }

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

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

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

    }
    c.close();

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

    res.setIntHeader("X-Documents-Returned", no);

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

}

From source file:com.andreig.jetty.SearchServlet.java

License:GNU General Public License

private String search2mongo(Document hits[], DBCollection col) {

    List<ObjectId> values = new ArrayList<ObjectId>();
    for (Document hit : hits) {
        String _id = hit.get("_id");
        ObjectId oid = ObjectId.massageToObjectId(_id);
        values.add(oid);//from   ww w .j  a v  a2  s.co  m
    }

    BasicDBObject q = new BasicDBObject();
    q.put("_id", new BasicDBObject("$in", values));

    DBCursor c = col.find(q);
    if (c == null || c.count() == 0) {
        return null;
    }

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

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

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

    }
    c.close();

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

    return buf.toString();

}