Example usage for com.mongodb.client MongoDatabase getCollection

Introduction

In this page you can find the example usage for com.mongodb.client MongoDatabase getCollection.

Prototype

MongoCollection<Document> getCollection(String collectionName);

Source Link

Document

Gets a collection.

Usage

From source file:com.mycompany.database.MongodbDataBaseClass.java

public void dududu() {
    System.out.println("not error");
    MongoClient mongoClient = new MongoClient("localhost", 27017);
    MongoDatabase database = mongoClient.getDatabase("testdb");
    System.out.println("not error");
    MongoCollection<Document> col = database.getCollection("cars");

    try (MongoCursor<Document> cur = col.find().iterator()) {
        while (cur.hasNext()) {

            Document doc = cur.next();

            List list = new ArrayList(doc.values());
            System.out.print(list.get(1));
            System.out.print(": ");
            System.out.println(list.get(2));
        }// w w  w.  j  a v a 2  s  .c  o  m
    }

    mongoClient.close();
}

From source file:com.mysweethome.TemperaturePersisterTimerTask.java

public synchronized void persistDataOnMongolab() {
    //disable console logging
    //Logger mongoLogger = Logger.getLogger("org.mongodb.driver"); 
    //mongoLogger.setLevel(Level.SEVERE);

    iStoredTemperatures = iTemperatureStore.getTemperatures();
    if (iStoredTemperatures.isEmpty()) {
        logger.info("Nothing to persist. Exiting");
        return;// w w  w.j a va 2s.c o m
    }
    logger.info("Prepairing to persist [{}] Temps in the cloud", iStoredTemperatures.size());
    MongoCollection<Document> mongoCollection = null;
    MongoClient client = null;
    List<Document> documents = new ArrayList<Document>();

    for (TemperatureMeasure tTemp : iStoredTemperatures) { //Exception in thread "Timer-2" java.util.ConcurrentModificationException
        Document doc = new Document();
        doc.put("Location", tTemp.getLocation()); //Location
        doc.put("Group", tTemp.getGroup()); //Group
        doc.put("Date", Helper.getDateAsString(tTemp.getDate())); //Date
        doc.put("Day", Helper.getDayAsString(tTemp.getDate()));
        doc.put("Time", Helper.getTimeAsString(tTemp.getDate()));
        doc.put("Temp", Helper.getTempAsString(tTemp.getTemp())); //Temp
        documents.add(doc);
        iPersistedTemperatures.add(tTemp);
    }

    try {
        MongoClientURI uri = new MongoClientURI(MySweetHomeProperties.ML_URL);
        client = new MongoClient(uri);
        MongoDatabase database = (MongoDatabase) client.getDatabase(uri.getDatabase());
        mongoCollection = database.getCollection("dailytemps");
        mongoCollection.insertMany(documents);
        //eliminate stored Temps from the collection
        iTemperatureStore.removeAll(iPersistedTemperatures);
        client.close();
        logger.info("Temperatures persisted on mongolab: [{}]. Exiting.", iPersistedTemperatures.size());
        iPersistedTemperatures.clear();
    } catch (Throwable e) {
        logger.error("Failed to store Temps in the cloud. Stacktrace: [{}]. Exiting.", e);
        iPersistedTemperatures.clear();
        e.printStackTrace();
    } finally {
        if (client != null) {
            client.close();
        }
        iPersistedTemperatures.clear();
    }
}

From source file:com.netflix.config.sources.MongoDBConfigurationSource.java

License:Apache License

/**
 * Returns a <code>Map<String, Object></code> of properties stored in the
 * database./*from   w  w  w.  j  a  va 2 s  .c  o  m*/
 *
 * @throws Exception
 */
synchronized Map<String, Object> load() throws Exception {
    Map<String, Object> map = new HashMap<String, Object>();

    try {
        final MongoDatabase database = mongoClient.getDatabase(databaseName);
        final MongoCollection<Document> collection = database.getCollection(collectionName);
        final FindIterable<Document> documents = collection.find();
        for (Document document : documents) {
            final Object id = document.get("_id");
            if (id != null && document.containsKey("value")) {
                final Object value = document.get("value");
                map.put(id.toString(), value);
            }
        }

    } catch (Exception e) {
        log.error("Failed to load archaius settings from MongoDB.", e);
        throw e;
    }
    return map;
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

public Map<String, List<String>> getSchema(boolean reset) {
    MongoDatabase db = mongoClient.getDatabase(databaseName);

    Map<String, List<String>> result = new HashMap<>();

    MongoCursor<String> cursor = db.listCollectionNames().iterator();
    try {/*from   www.ja v a2 s  . c o m*/
        while (cursor.hasNext()) {
            String name = cursor.next();
            if (!name.startsWith("system."))
                if (reset)
                    db.getCollection(name).drop();
                else
                    result.put(name, new ArrayList<String>());
        }
    } finally {
        cursor.close();
    }

    for (Map.Entry<String, List<String>> e : result.entrySet()) {
        MongoCursor<Document> idxCursor = db.getCollection(e.getKey()).listIndexes().iterator();
        try {
            while (idxCursor.hasNext()) {
                Document idx = idxCursor.next();
                String indexName = idx.get("name", String.class);
                if (CompoundIndexDescriptor.isCompondIndexName(indexName))
                    e.getValue().add(indexName);
                else {
                    String name = idx.get("key", Document.class).keySet().iterator().next();
                    if (!name.startsWith("_"))
                        e.getValue().add(name);
                }
            }
        } finally {
            idxCursor.close();
        }
    }

    return result;
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

public void createEntity(String unitName, Collection<String> indexedFields,
        List<CompoundIndexDescriptor> compoundIndexes) {
    MongoDatabase db = mongoClient.getDatabase(databaseName);
    db.createCollection(unitName);/*from   w ww  . j  a  v a2s .  c om*/

    List<IndexModel> indexes = new ArrayList<>();

    for (CompoundIndexDescriptor ci : compoundIndexes) {
        Map<String, Object> fields = new HashMap<>();
        for (CompoundIndexDescriptor.Field field : ci.getFields())
            fields.put(field.getName(), field.isDescending() ? "-1" : "1");
        indexes.add(new IndexModel(new Document(fields),
                new IndexOptions().name(indexName(ci.getName())).background(true)));
    }

    for (String idx : indexedFields)
        indexes.add(
                new IndexModel(new Document(idx, 1), new IndexOptions().name(indexName(idx)).background(true)));

    db.getCollection(unitName).createIndexes(indexes);
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

public void dropEntity(String unitName) {
    if (unitName.startsWith("system.")) // just a precation, shouldn't happen
        return;/*from w w  w  . j  ava  2  s.  co  m*/

    MongoDatabase db = mongoClient.getDatabase(databaseName);
    try {
        db.getCollection(unitName).drop();
    } catch (MongoCommandException ignored) {
    }
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

public void addIndexes(String unitName, List<String> newIndexes,
        List<CompoundIndexDescriptor> newCompoundIndexes) {
    MongoDatabase db = mongoClient.getDatabase(databaseName);

    List<IndexModel> indexes = new ArrayList<>();

    for (CompoundIndexDescriptor ci : newCompoundIndexes) {
        Map<String, Object> fields = new HashMap<>();
        for (CompoundIndexDescriptor.Field field : ci.getFields())
            fields.put(field.getName(), field.isDescending() ? "-1" : "1");
        indexes.add(new IndexModel(new Document(fields),
                new IndexOptions().name(indexName(ci.getName())).background(true)));
    }//  w w w  .  java 2s. co m

    for (String idx : newIndexes)
        indexes.add(
                new IndexModel(new Document(idx, 1), new IndexOptions().name(indexName(idx)).background(true)));

    db.getCollection(unitName).createIndexes(indexes);
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

public void dropIndex(String unitName, String obsoleteIndex) {
    if (obsoleteIndex.startsWith("_")) // just a precation, shouldn't happen
        return;/*from ww  w.  j  a  va2s  . c o m*/

    MongoDatabase db = mongoClient.getDatabase(databaseName);
    try {
        db.getCollection(unitName).dropIndex(indexName(obsoleteIndex));
    } catch (MongoCommandException ignored) {
    }
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

public Long getMaxId(String unitName) {
    MongoDatabase db = mongoClient.getDatabase(databaseName);
    Document result = db.getCollection(unitName).find().sort(Sorts.descending("id"))
            .projection(Projections.include("id")).limit(1).first();
    if (result == null)
        return null;

    return result.getLong("id");
}

From source file:com.px100systems.data.plugin.storage.mongo.MongoDatabaseStorage.java

License:Open Source License

@SuppressWarnings("unchecked")
public <T> T get(String unitName, Class<T> cls, Long id) {
    MongoDatabase db = mongoClient.getDatabase(databaseName);
    Document doc = db.getCollection(unitName).find(Filters.eq("id", id)).limit(1).first();
    if (doc == null)
        return null;

    SerializationDefinition def = SerializationDefinition.get(cls);
    if (def == null)
        throw new RuntimeException("Cannot find SerializedDefinition for " + cls.getSimpleName());

    T result = (T) def.newInstance();/*w ww .  jav  a2 s.c om*/
    def.read(doc, result);
    return result;
}