List of usage examples for com.mongodb DBCursor hasNext
@Override public boolean hasNext()
From source file:bd.DVenta.java
@Override public ArrayList listar(HashMap map) { ArrayList datos = new ArrayList(); CVenta x = new CVenta(); conecion con = new conecion(table); BasicDBObject id = new BasicDBObject(map); DBCursor cursor = con.get_colletion().find(id); try {//w w w.j ava2s.co m while (cursor.hasNext()) { x = new CVenta(); x.set_datos((HashMap) cursor.next().toMap()); datos.add(x); } } finally { cursor.close(); } con.end(); return datos; }
From source file:biopolis.headless.BiopolisSegmentationManagement.java
public java.util.Date updateTTL() throws BiopolisGeneralException { java.util.Date date = new java.util.Date(); DBCursor cur = dbcol.find(new BasicDBObject("_id", id)); if (!cur.hasNext()) { throw new BiopolisGeneralException("Search trashed"); }//from w w w .j a v a 2 s .co m BasicDBObject setter = new BasicDBObject("$set", new BasicDBObject("biopolisttl", date)); dbcol.update(new BasicDBObject("_id", id), setter); dbcol.update(new BasicDBObject("biopolishandle", this.biopiolisid), setter); return date; }
From source file:biopolis.headless.BiopolisSegmentationManagement.java
public void iterationPhase(DBCursor cur) throws SQLException, BiopolisGeneralException { java.util.Date date = this.updateTTL(); while (cur.hasNext()) { Long name = (Long) cur.next().get("biopolisdata"); BasicDBObject place = new BasicDBObject(); place.put("biopolishandle", this.biopiolisid); place.put("biopolisdata", name); place.put("biopolisttl", date); dbcol.insert(place);//from w ww . j a v a 2s . co m } this.occurs++; }
From source file:biopolis.headless.BiopolisSegmentationManagement.java
public List<Long> search(BiopolisSegmentQuery seg) throws BiopolisGeneralException { byte[] bytes = Base64.decodeBase64(seg.biopolisid); ObjectId someid = new ObjectId(bytes); DBCursor cur = dbcol.find(new BasicDBObject("_id", someid)); if (!cur.hasNext()) { throw new BiopolisGeneralException("Search not exists with id " + seg.biopolisid); }/*ww w.jav a 2s. c o m*/ BasicDBObject setter = new BasicDBObject("$set", new BasicDBObject("biopolisttl", new java.util.Date())); dbcol.update(new BasicDBObject("_id", someid), setter); dbcol.update(new BasicDBObject("biopolisid", seg.biopolisid), setter); List<Long> resus = new ArrayList<Long>(); cur = dbcol.find(new BasicDBObject("biopolisid", seg.biopolisid)); cur = cur.sort(new BasicDBObject("biopolisdata", 1)); int count = 0; while (cur.hasNext()) { System.out.println("scan " + seg.from); DBObject obj = cur.next(); if ((count >= seg.from) && (count < seg.from + this.segSZ)) { System.out.println("add"); Long i = (Long) obj.get("biopolisdata"); resus.add(i); } count++; } System.out.println(resus.size()); return resus; }
From source file:br.bireme.scl.BrokenLinks.java
License:Open Source License
private static List<Integer> getIsisCcFields(final String mstName, final DBCollection coll) throws IOException { assert mstName != null; assert coll != null; final List<Integer> lst = new ArrayList<Integer>(); final BasicDBObject query = new BasicDBObject(MST_FIELD, mstName); final DBCursor cursor = coll.find(query); if (cursor.hasNext()) { final BasicDBObject obj = (BasicDBObject) cursor.next(); final BasicDBList flds = (BasicDBList) obj.get(CC_TAGS_FIELD); if (flds.isEmpty()) { throw new IOException("Missing CCs field"); }/*from w ww . j a va 2 s . co m*/ for (Object tag : flds) { lst.add((Integer) tag); } } else { throw new IOException("Missing collection: " + coll.getName()); } cursor.close(); return lst; }
From source file:br.bireme.scl.BrokenLinks.java
License:Open Source License
private static boolean removeOldDocs(final DBCollection coll) { assert coll != null; final Date now = new Date(); final DBCursor cursor = coll.find(); boolean ret = true; while (cursor.hasNext()) { final BasicDBObject obj = (BasicDBObject) cursor.next(); final Date auxDate = obj.getDate(LAST_UPDATE_FIELD); if ((auxDate == null) || (now.getTime() - auxDate.getTime()) > 60 * 60 * 1000) { final WriteResult wr = coll.remove(obj, WriteConcern.ACKNOWLEDGED); ret = ret && wr.getCachedLastError().ok(); }//w w w . j av a 2 s. com } return ret; }
From source file:br.bireme.scl.CopyMongoDb.java
License:Open Source License
private static void copyDB(final String from_host, final String to_host, final String from_db, final String to_db, final String from_port, final String to_port, final boolean appendCollections, final boolean displayAllIds) throws UnknownHostException, IOException { assert from_host != null; assert to_host != null; assert from_db != null; assert to_db != null; assert from_port != null; assert to_port != null; final int MAX_LOOP_SIZE = 15000; // MongoException$CursorNotFound final MongoClient fromClient = new MongoClient(from_host, Integer.parseInt(from_port)); final MongoClient toClient = new MongoClient(to_host, Integer.parseInt(to_port)); final DB fromDb = fromClient.getDB(from_db); final DB toDb = toClient.getDB(to_db); if (!appendCollections) { toDb.dropDatabase();/*ww w . j a va 2 s. c o m*/ } final Set<String> colls = fromDb.getCollectionNames(); for (String cname : colls) { if (cname.equals("system.indexes")) { continue; } final DBCollection fromColl = fromDb.getCollection(cname); final DBCollection toColl = toDb.getCollection(cname); DBCursor cursor = fromColl.find(); int curr = 0; System.out.println("Copying collection: " + cname); while (cursor.hasNext()) { if (curr % MAX_LOOP_SIZE == 0) { if (curr > 0) { cursor.close(); cursor = fromColl.find().skip(curr); if (!cursor.hasNext()) { throw new IOException("hasNext() failed"); } } } final DBObject doc = cursor.next(); final WriteResult ret = toColl.save(doc, WriteConcern.ACKNOWLEDGED); if (!ret.getCachedLastError().ok()) { System.err.println("write error doc id=" + doc.get("_id")); } if (++curr % 1000 == 0) { System.out.println("+++" + curr); } if (displayAllIds) { System.out.println(" id=" + doc.get("_id")); } } cursor.close(); System.out.println(); } }
From source file:br.bireme.scl.Gizmo.java
License:Open Source License
Collection<Element> getNotExportedElements(final DBCollection coll, final DBCursor cursor) throws IOException { assert coll != null; assert cursor != null; final Collection<Element> col = new ArrayList<Element>(); while (cursor.hasNext()) { final BasicDBObject obj = (BasicDBObject) cursor.next(); final String id = obj.getString(ID_FIELD); final BasicDBList lst = (BasicDBList) obj.get(ELEM_LST_FIELD); if (lst == null) { throw new NullPointerException("Elem list espected"); }/*from w w w .ja va2 s. co m*/ final BasicDBObject lelem = (BasicDBObject) lst.get(0); if (lelem == null) { throw new NullPointerException("Elem element espected"); } if (!lelem.getBoolean(EXPORTED_FIELD)) { final Element elem = new Element(id, lelem.getString(BROKEN_URL_FIELD), lelem.getString(PRETTY_BROKEN_URL_FIELD), lelem.getString(FIXED_URL_FIELD), obj.getString(MST_FIELD), lelem.getDate(LAST_UPDATE_FIELD).toString(), lelem.getString(USER_FIELD), null, false); col.add(elem); lelem.put(EXPORTED_FIELD, true); final WriteResult res = coll.save(obj, WriteConcern.ACKNOWLEDGED); if (!res.getCachedLastError().ok()) { throw new IOException("write doc[" + obj.getString(ID_FIELD) + "] failed"); } } } return col; }
From source file:br.bireme.scl.MongoOperations.java
License:Open Source License
public static Set<String> getCenters(final DBCollection coll) { if (coll == null) { throw new NullPointerException("coll"); }/*from w ww . ja va2s .c o m*/ final Set<String> set = new TreeSet<String>(); final DBCursor cursor = coll.find(); while (cursor.hasNext()) { final BasicDBList lst = (BasicDBList) cursor.next().get(CENTER_FIELD); set.add((String) lst.get(0)); } cursor.close(); return set; }
From source file:br.bireme.scl.MongoOperations.java
License:Open Source License
/** * Obtem uma lista com objetos IdUrl obtidos da base de dados MongoDb * @param coll coleo onde esto as urls/*from www. ja v a2s . c om*/ * @param centerIds filtro dos centros colaboradores desejados. Nunca nulo * @param filter se no nulo filtra as urls com um cc especfico * @param from indice inicial da lista a ser recuperado. Comea de 1. * @param count numero de elementos a serem devolvidos * @param ascendingOrder se retorna por ordem de data ascendente ou descendente * @return lista de objetos IdUrl */ private static List<IdUrl> getCenterUrls(final DBCollection coll, final Set<String> centerIds, final String filter, final int from, final int count, final boolean ascendingOrder) { if (coll == null) { throw new NullPointerException("coll"); } if (centerIds == null) { throw new NullPointerException("centerIds"); } if (centerIds.isEmpty()) { throw new IllegalArgumentException("empty centerIds"); } if (from < 1) { throw new IllegalArgumentException("from[" + from + "] < 1"); } if (count < 1) { throw new IllegalArgumentException("count[" + count + "] < 1"); } //final Set<IdUrl> lst = new TreeSet<IdUrl>(); final List<IdUrl> lst = new ArrayList<IdUrl>(); final SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); final BasicDBObject sort = new BasicDBObject(DATE_FIELD, ascendingOrder ? 1 : -1); if (filter == null) { final BasicDBList cclst = new BasicDBList(); for (String centerId : centerIds) { cclst.add(centerId); } final BasicDBObject in = new BasicDBObject("$in", cclst); final BasicDBObject query = new BasicDBObject(CENTER_FIELD, in); //final DBCursor cursor = coll.find(query).skip(from - 1).limit(count); final DBCursor cursor = coll.find(query).sort(sort).skip(from - 1).limit(count); while (cursor.hasNext()) { final DBObject doc = cursor.next(); final BasicDBList ccsLst = (BasicDBList) doc.get(CENTER_FIELD); final Set<String> ccs = new TreeSet<String>(); for (Object cc : ccsLst) { ccs.add((String) cc); } final IdUrl iu = new IdUrl((String) doc.get(ID_FIELD), (String) doc.get(PRETTY_BROKEN_URL_FIELD), ccs, format.format((Date) (doc.get(DATE_FIELD))), (String) doc.get(MST_FIELD)); lst.add(iu); } cursor.close(); } else { final BasicDBObject query = new BasicDBObject(CENTER_FIELD, filter); final DBCursor cursor = coll.find(query).sort(sort).skip(from - 1).limit(count); while (cursor.hasNext()) { final DBObject doc = cursor.next(); final Set<String> ccs = new TreeSet<String>(); ccs.add(filter); final IdUrl iu = new IdUrl((String) doc.get(ID_FIELD), (String) doc.get(PRETTY_BROKEN_URL_FIELD), ccs, format.format((Date) doc.get(DATE_FIELD)), (String) doc.get(MST_FIELD)); lst.add(iu); } cursor.close(); } return lst; }