List of usage examples for com.mongodb.util JSON serialize
public static void serialize(final Object object, final StringBuilder buf)
Serializes an object into its JSON form.
This method delegates serialization to JSONSerializers.getLegacy
From source file:net.kamradtfamily.mongorest.DistinctServlet.java
License:GNU General Public License
@Override protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { log.fine("doGet()"); String db_name = req.getParameter("dbname"); String col_name = req.getParameter("colname"); String key = req.getParameter("key"); if (db_name == null || col_name == null) { String names[] = req2mongonames(req); if (names != null) { db_name = names[0];//from w w w. j a v a 2 s . co m col_name = names[1]; } if (db_name == null || col_name == null) { error(res, SC_BAD_REQUEST, Status.get("param name missing")); return; } } if (key == null) { error(res, SC_BAD_REQUEST, Status.get("param name missing")); return; } DB db = mongo.getDB(db_name); DBCollection col = db.getCollection(col_name); List l = col.distinct(key); if (l == null || l.isEmpty()) { error(res, SC_NOT_FOUND, Status.get("no documents found")); return; } res.setIntHeader("X-Documents-Count", l.size()); StringBuilder buf = tl.get(); buf.setLength(0); JSON.serialize(l, buf); out_str(req, buf.toString(), "application/json"); }
From source file:net.kamradtfamily.mongorest.GridfsServlet.java
License:GNU General Public License
@Override protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { log.fine("doGet()"); 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];/* w ww . j av a 2s. c o m*/ 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); }
From source file:net.kamradtfamily.mongorest.QueryServlet.java
License:GNU General Public License
@Override protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { log.fine("doPost()"); // server auth String ret;//from ww w. j a v a2s . c o m 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:net.kamradtfamily.mongorest.QueryServlet.java
License:GNU General Public License
@Override protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { log.fine("doGet()"); 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];/*from w w w . j a v a2 s . com*/ 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"); }