Example usage for com.mongodb DBCursor next

Introduction

In this page you can find the example usage for com.mongodb DBCursor next.

Prototype

@Override
public DBObject next() 

Source Link

Document

Returns the object the cursor is at and moves the cursor ahead by one.

Usage

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

License:GNU General Public License

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

    log.fine("doDelete()");

    if (!can_write(req)) {
        res.sendError(SC_UNAUTHORIZED);/*from ww w. j  av a 2 s.co m*/
        return;
    }

    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;
        }
    }

    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);

    BufferedReader r = null;
    DBObject q = 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);
        } catch (JSONParseException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse data"));
            return;
        }

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

    // search
    if (do_search) {

        DBCursor c = col.find(q);
        long l = c.count();
        String todelete[] = new String[(int) l];
        int n = 0;

        while (c.hasNext()) {

            DBObject o = c.next();
            ObjectId oid = (ObjectId) o.get("_id");
            String id = oid.toStringMongod();
            todelete[n++] = id;

        }
        c.close();
        search.get_writer().delete(todelete);

    }

    WriteResult wr = col.remove(q, write_concern);

    // return operation status
    if (do_return) {
        out_str(req, wr.toString());
        if (wr.getError() == null) {
            res.setStatus(SC_BAD_REQUEST);
            return;
        }
    }

    res.setStatus(SC_OK);

}

---

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

License:GNU General Public License

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

    log.fine("doPost()");

    if (!can_write(req)) {
        res.sendError(SC_UNAUTHORIZED);/*from   w  ww . j av a 2s.co  m*/
        return;
    }

    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;
        }
    }

    boolean upsert = Boolean.parseBoolean(req.getParameter("upsert"));
    boolean multi = Boolean.parseBoolean(req.getParameter("multi"));

    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);

    BufferedReader r = null;
    DBObject q = null, o = null;
    try {

        r = new BufferedReader(new InputStreamReader(is));
        String q_s = r.readLine();
        if (q_s == null) {
            error(res, SC_BAD_REQUEST, Status.get("no data"));
            return;
        }
        String o_s = r.readLine();
        if (o_s == null) {
            error(res, SC_BAD_REQUEST, Status.get("obj to update missing"));
            return;
        }
        try {
            q = (DBObject) JSON.parse(q_s);
            o = (DBObject) JSON.parse(o_s);
        } catch (JSONParseException e) {
            error(res, SC_BAD_REQUEST, Status.get("can not parse data"));
            return;
        }

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

        String fn = col.getFullName();
        DBCursor c = col.find(q);
        int cnt = c.count();
        if (!multi)
            c.limit(1);
        long l = multi ? cnt : 1;
        String toupdate[] = new String[(int) l];
        int n = 0;
        boolean insert = false;

        if (upsert && !multi && cnt == 0)
            insert = true;

        while (c.hasNext()) {

            DBObject _o = c.next();
            ObjectId oid = (ObjectId) _o.get("_id");
            String id = oid.toStringMongod();
            toupdate[n++] = id;

        }
        c.close();

        List<String> flds = Config.search_index_fields.get(fn);
        boolean commit = false;
        Document doc = null;
        Search _writer = search.get_writer();
        if (flds != null && flds.size() > 0) {
            doc = new Document();
            try {
                for (String fld : flds) {
                    String val = (String) o.get(fld);
                    if (val == null)
                        continue;
                    Search.add_searchable_s(doc, fld, val);
                    commit = true;
                }
                if (commit)
                    _writer.commit(doc);
            } catch (ClassCastException e) {
                error(res, SC_BAD_REQUEST, Status.get("searchable fields must be type String"));
                return;
            } catch (CorruptIndexException e) {
                error(res, SC_BAD_REQUEST, Status.get("Search corrupt index" + e));
                return;
            }
        }
        if (commit && insert)
            log.warning("upsert with search not implemented yet");
        else
            _writer.update(toupdate, doc);

    }

    WriteResult wr = col.update(q, o, upsert, multi, write_concern);

    // return operation status
    if (do_return) {
        out_str(req, wr.toString());
        if (wr.getError() == null) {
            res.setStatus(SC_BAD_REQUEST);
            return;
        }
    }

    res.setStatus(SC_CREATED);

}

---

From source file:com.aperigeek.dropvault.web.dao.MongoFileService.java

License:Open Source License

public List<Resource> getChildren(Resource resource) {
    DBCollection col = mongo.getDataBase().getCollection("files");

    DBObject filter = new BasicDBObject();
    filter.put("parent", resource.getId());

    List<Resource> children = new ArrayList<Resource>();

    DBCursor cursor = col.find(filter);
    while (cursor.hasNext()) {
        children.add(buildResource(cursor.next()));
    }//w  w w  . j a  va 2s  .  c o m

    return children;
}

---

From source file:com.apifest.oauth20.MongoDBManager.java

License:Apache License

@SuppressWarnings("unchecked")
@Override//from w w  w  .j a  v a  2 s  .c  o m
public AuthCode findAuthCode(String authCode, String redirectUri) {
    BasicDBObject keys = new BasicDBObject();
    keys.put(AUTH_CODE_ID_NAME, authCode);
    keys.put(REDIRECT_URI_NAME, redirectUri);
    keys.put(VALID_NAME, true);
    DBCursor list = db.getCollection(AUTH_CODE_COLLECTION_NAME).find(new BasicDBObject(keys));
    while (list.hasNext()) {
        DBObject result = list.next();
        Map<String, Object> mapLoaded = result.toMap();
        AuthCode loadedAuthCode = AuthCode.loadFromMap(mapLoaded);
        log.debug(loadedAuthCode.getClientId());
        list.close();
        return loadedAuthCode;
    }
    list.close();
    return null;
}

---

From source file:com.apifest.oauth20.MongoDBManager.java

License:Apache License

protected Object getObject(DBCollection coll, BasicDBObject query) {
    DBCursor cursor = coll.find(query);
    Object result = null;/* w w w .j av a2  s .c o  m*/
    try {
        // TODO: if more than once throw exception
        while (cursor.hasNext()) {
            result = cursor.next();
            log.debug("found: " + result);
        }
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return result;
}

---

From source file:com.apifest.oauth20.persistence.mongodb.MongoDBManager.java

License:Apache License

@SuppressWarnings("unchecked")
@Override/* ww w .  ja v a2  s . com*/
public AuthCode findAuthCode(String authCode, String redirectUri) {
    BasicDBObject keys = new BasicDBObject();
    keys.put(AUTH_CODE, authCode);
    keys.put(ACCESS_TOKEN_REDIRECT_URI, redirectUri);
    keys.put(ACCESS_TOKEN_VALID, true);
    DBCursor list = db.getCollection(AUTH_CODE_COLLECTION_NAME).find(new BasicDBObject(keys));
    if (list.hasNext()) {
        DBObject result = list.next();
        Map<String, Object> mapLoaded = result.toMap();
        AuthCode loadedAuthCode = AuthCode.loadFromMap(mapLoaded);
        log.debug(loadedAuthCode.getClientId());
        list.close();
        return loadedAuthCode;
    }
    list.close();
    return null;
}

---

From source file:com.app.mongoDao.MongoBookDao.java

@Override
public List<Book> listBook() {
    ArrayList<Book> booklist = new ArrayList<>();
    try {//  ww  w.j  a  va2 s  .  c  o  m
        DBCollection data = DatabaseConfig.configure();
        BasicDBObject orderBy = new BasicDBObject("id", 1);
        DBCursor docs = data.find().sort(orderBy);

        while (docs.hasNext()) {
            DBObject doc = docs.next();
            Book librarybook = new Book(doc.get("bookname").toString(), doc.get("author").toString());
            booklist.add(librarybook);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return booklist;
}

---

From source file:com.appleframework.monitor.action.LogsAction.java

License:Open Source License

@RequestMapping(value = "/projects/{projectName}/logs/download", method = RequestMethod.GET)
public void download(final HttpServletResponse response, ModelMap map, @PathVariable String projectName,
        LogQuery logQuery) throws IOException, ParseException {
    Project project = projectService.findProject(projectName);
    final MongoConverter converter = project.fetchMongoTemplate().getConverter();
    final DBCursor cursor = logsService.findLogs(projectName, logQuery, 100000);
    response.setContentType("file/txt;charset=utf-8");
    response.addHeader("content-disposition",
            String.format("attachment; filename=%s.txt", java.net.URLEncoder.encode("logs", "UTF-8")));
    response.setStatus(HttpServletResponse.SC_OK);
    while (cursor.hasNext()) {
        Log log = converter.read(Log.class, cursor.next());
        response.getWriter().println(log.toString());
    }/*w  ww  .j av  a2  s . c  o  m*/
}

---

From source file:com.appleframework.monitor.action.LogsAction.java

License:Open Source License

@RequestMapping(value = "/projects/{projectName}/logs/more", method = RequestMethod.GET)
public void console(final HttpServletResponse response, ModelMap map, @PathVariable String projectName,
        LogQuery logQuery) throws IOException, ParseException {
    Project project = projectService.findProject(projectName);
    map.put("project", project);
    final MongoConverter converter = project.fetchMongoTemplate().getConverter();
    final DBCursor cursor = logsService.findLogs(projectName, logQuery);
    final StringBuffer buf = new StringBuffer();

    FutureTask<String> task = new FutureTask<String>(new Callable<String>() {
        @Override//  ww  w .  j  av a  2  s  .  c  o m
        public String call() throws Exception {
            long startTime = System.currentTimeMillis();
            //???20
            logger.debug("result:");
            while (cursor.hasNext()) {
                Log log = converter.read(Log.class, cursor.next());

                buf.insert(0, log.toString() + "\n");
                long current = System.currentTimeMillis();
                if ((current - startTime) / 1000 >= mongWaitSeconds)
                    break;
            }
            return buf.toString();
        }
    });
    executor.execute(task);
    try {
        task.get(mongWaitSeconds + 5, TimeUnit.SECONDS);
        cursor.close();
    } catch (Exception e) {
        logger.error("time out ", e);
        task.cancel(true);
    }

    response.setContentType("text/html;charset=UTF-8");
    response.getWriter().write(buf.toString());
    response.getWriter().flush();
}

---

From source file:com.arquivolivre.mongocom.management.CollectionManager.java

License:Apache License

/**
 * Find all documents that match the specified query in the given
 * collection.//from w ww  .  j  a  v  a 2 s. co m
 *
 * @param <A> generic type of the collection.
 * @param collectionClass
 * @param query
 * @return a list of documents.
 */
public <A extends Object> List<A> find(Class<A> collectionClass, MongoQuery query) {
    List<A> resultSet = new ArrayList<>();
    DBCursor cursor = null;
    try {
        A obj = collectionClass.newInstance();
        String collectionName = reflectCollectionName(obj);
        cursor = db.getCollection(collectionName).find(query.getQuery(), query.getConstraits());
        if (query.getSkip() > 0) {
            cursor = cursor.skip(query.getSkip());
        }
        if (query.getLimit() > 0) {
            cursor = cursor.limit(query.getLimit());
        }
        while (cursor.hasNext()) {
            DBObject objDB = cursor.next();
            loadObject(obj, objDB);
            resultSet.add(obj);
            obj = collectionClass.newInstance();
        }
    } catch (InstantiationException | IllegalAccessException | IllegalArgumentException
            | InvocationTargetException | NoSuchMethodException | SecurityException ex) {
        LOG.log(Level.SEVERE, null, ex);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return resultSet;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »