List of usage examples for com.mongodb.client MongoCursor next
@Override
TResult next();
From source file:info.bunji.mongodb.synces.CollectionExtractor.java
License:Apache License
/** **********************************//from www . java2 s. c o m * ??????. * <br> * ???????? * @return ???? ********************************** */ private Set<String> getTargetColectionList(MongoDatabase db) { Set<String> collectionSet = config.getImportCollections(); if (collectionSet.isEmpty()) { // ??????(???) MongoCursor<String> it = db.listCollectionNames().iterator(); while (it.hasNext()) { String name = it.next(); if (!name.startsWith("system.")) { collectionSet.add(name); } } } return collectionSet; }
From source file:io.djigger.collector.accessors.InstrumentationEventAccessor.java
License:Open Source License
private Iterator<InstrumentationEvent> query(Bson query) { final MongoCursor<Document> documents = instrumentationEventsCollection.find(query).iterator(); return new Iterator<InstrumentationEvent>() { @Override//w w w .j ava 2s . c o m public boolean hasNext() { return documents.hasNext(); } @Override public InstrumentationEvent next() { Document doc = documents.next(); InstrumentationEvent event = fromDocument(doc); return event; } private InstrumentationEvent fromDocument(Document doc) { InstrumentationEvent event; if (doc.containsKey("stacktrace")) { event = new InstrumentationEventWithThreadInfo(doc.getString("class"), doc.getString("method")); StackTraceElement[] stacktrace = fromDBObject(doc.get("stacktrace")); ThreadInfo info = new ThreadInfo(stacktrace); ((InstrumentationEventWithThreadInfo) event).setThreadInfo(info); } else { event = new InstrumentationEvent(doc.getString("class"), doc.getString("method")); } event.setStart(doc.getDate("start").getTime()); event.setDuration(doc.getLong("duration")); event.setId(doc.getObjectId("_id")); event.setThreadID(doc.getLong("threadid")); event.setParentID(doc.getObjectId("parentid")); // event.setTransactionID((UUID) doc.get("trid")); event.setTransactionID(UUID.fromString(doc.getString("trid"))); if (doc.containsKey("data")) { List<?> array = (List<?>) doc.get("data"); List<InstrumentationEventData> list = new LinkedList<InstrumentationEventData>(); for (Object value : array) { list.add(new StringInstrumentationEventData((String) value)); } event.setData(list); } return event; } private StackTraceElement[] fromDBObject(Object o) { @SuppressWarnings("unchecked") List<List<Object>> l = (List<List<Object>>) o; StackTraceElement[] s = new StackTraceElement[l.size()]; for (int i = 0; i < l.size(); i++) { List<Object> e = (List<Object>) l.get(i); s[i] = new StackTraceElement((String) e.get(0), (String) e.get(1), (String) e.get(2), (int) e.get(3)); } return s; } @Override public void remove() { throw new RuntimeException("Not implemented"); } }; }
From source file:io.djigger.collector.accessors.MetricAccessor.java
License:Open Source License
private Iterator<Metric<?>> query(Bson query) { final MongoCursor<Document> documents = metricsCollection.find(query).iterator(); return new Iterator<Metric<?>>() { @Override// w w w . j a v a2 s . com public boolean hasNext() { return documents.hasNext(); } @Override public Metric<?> next() { Document doc = documents.next(); Metric<?> event = fromDocument(doc); return event; } @Override public void remove() { throw new RuntimeException("Not implemented"); } }; }
From source file:io.lumeer.storage.mongodb.dao.collection.MongoDataDao.java
License:Open Source License
@Override public DataDocument getData(final String collectionId, final String documentId) { MongoCursor<Document> mongoCursor = dataCollection(collectionId).find(idFilter(documentId)).iterator(); if (!mongoCursor.hasNext()) { throw new ResourceNotFoundException(ResourceType.DOCUMENT); }/* w w w .jav a2s . c om*/ return MongoUtils.convertDocument(mongoCursor.next()); }
From source file:io.lumeer.storage.mongodb.dao.project.MongoViewDao.java
License:Open Source License
@Override public View getViewByCode(final String code) { MongoCursor<JsonView> mongoCursor = databaseCollection().find(codeFilter(code)).iterator(); if (!mongoCursor.hasNext()) { throw new ResourceNotFoundException(ResourceType.VIEW); }// w ww . ja v a2s . c o m return mongoCursor.next(); }
From source file:io.mandrel.blob.impl.MongoBlobStore.java
License:Apache License
@Override public void byPages(int pageSize, Callback callback) { MongoCursor<GridFSFile> cursor = bucket.find().iterator(); boolean loop = true; try {// w ww.j a v a2s.c o m while (loop) { List<GridFSFile> files = new ArrayList<>(batchSize); int i = 0; while (cursor.hasNext() && i < batchSize) { files.add(cursor.next()); i++; } loop = callback.on(files.stream().map(file -> bucket.openDownloadStream(file.getObjectId())) .map(fromFile).collect(Collectors.toList())); } } finally { cursor.close(); } }
From source file:io.mandrel.document.impl.MongoDocumentStore.java
License:Apache License
@Override public void byPages(int pageSize, Callback callback) { MongoCursor<org.bson.Document> cursor = collection.find().iterator(); boolean loop = true; try {//from ww w .ja v a 2 s. c o m while (loop) { List<org.bson.Document> docs = new ArrayList<>(batchSize); int i = 0; while (cursor.hasNext() && i < batchSize) { docs.add(cursor.next()); i++; } loop = callback.on(docs.stream().map(fromBson).collect(Collectors.toList())); } } finally { cursor.close(); } }
From source file:io.mandrel.document.impl.MongoDocumentStore.java
License:Apache License
@Override public Collection<Document> byPages(int pageSize, int pageNumber) { MongoCursor<org.bson.Document> cursor = collection.find().skip(pageSize * pageNumber).limit(pageSize) .iterator();//from ww w .j a va 2 s . c om List<org.bson.Document> docs = new ArrayList<>(10); while (cursor.hasNext()) { docs.add(cursor.next()); } return docs.stream().map(fromBson).collect(Collectors.toList()); }
From source file:io.mandrel.metadata.impl.MongoMetadataStore.java
License:Apache License
@Override public void byPages(int pageSize, Callback callback) { MongoCursor<org.bson.Document> cursor = collection.find().iterator(); boolean loop = true; try {//ww w . j a v a 2s . c o m while (loop) { List<org.bson.Document> docs = new ArrayList<>(batchSize); int i = 0; while (cursor.hasNext() && i < batchSize) { docs.add(cursor.next()); i++; } loop = callback.on(docs.stream().map(doc -> JsonBsonCodec.fromBson(mapper, doc, BlobMetadata.class)) .collect(Collectors.toList())); } } finally { cursor.close(); } }
From source file:io.mandrel.timeline.impl.MongoTimelineRepository.java
License:Apache License
@Override public void pool(Listener listener) { LocalDateTime date = LocalDateTime.now(); Bson query = Filters.gt("time", date); try {/*ww w . j av a2s .c om*/ while (true) { MongoCursor<Document> cursor = timeline.find(query).cursorType(CursorType.TailableAwait).iterator(); while (true) { if (!cursor.hasNext()) { if (cursor.getServerCursor() == null) { break; } continue; } Document result = cursor.next(); try { Event event = mapper.readValue(result.toJson(), Event.class); date = event.getTime(); listener.on(event); } catch (Exception e) { log.warn("Error while getting the event", e); } } query = Filters.gt("time", date); } } catch (Exception e) { log.warn("Event pool process is down!", e); } }