Examples of com.mongodb.DBCollection

com.mongodb.DBCollection

This class provides a skeleton implementation of a database collection.

A typical invocation sequence is thus

 Mongo mongo = new Mongo( new DBAddress( "localhost", 127017 ) ); DB db = mongo.getDB( "mydb" ); DBCollection collection = db.getCollection( "test" );

@dochub collections

    try {


      // force connection to be established
      mongoClient.getDatabaseNames();


      DBCollection ChangedAttr = db.getCollection(ChangedAttributes);


      BasicDBObject newVal = new BasicDBObject("name", comp.getName())
          .append("time", System.currentTimeMillis())
          .append("op", "removed").append("attribute", attr)
          .append("oldValue", oldValue);


      for (Map.Entry<String, Object> e : comp.getAllProperties()
          .entrySet()) {
        newVal.append(e.getKey(), e.getValue().toString());
      }
      ChangedAttr.insert(newVal);
    } catch (MongoException e) {


      stop();
    }
  }

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      // force connection to be established
      mongoClient.getDatabaseNames();


      logger.info("removing component");
      DBCollection ME = db.getCollection(Entities);


      BasicDBObject created = new BasicDBObject("name", comp.getName())
          .append("time", System.currentTimeMillis()).append("op",
              "deleted");
      ME.insert(created);


    } catch (MongoException e) {


      stop();
    }

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    try {


      // force connection to be established
      mongoClient.getDatabaseNames();


      DBCollection ChangedLink = db.getCollection(Links);


      BasicDBObject newLink = new BasicDBObject("name", wire.getSource()
          .getName()).append("time", System.currentTimeMillis())
          .append("linkType", "Wire")
          .append("linkId", wire.getName())
          .append("removed", wire.getDestination().getName());


      ChangedLink.insert(newLink);


    } catch (MongoException e) {


      stop();
    }

View Full Code Here

    public SystemSetting(MongoConnection mongoConnection) {
        super(mongoConnection);
    }
    
    public boolean getBoolean(String key) {
        DBCollection coll = getCollection();
        
        DBObject query = new BasicDBObject();
        query.put("key", key);
        
        DBObject result = coll.findOne(query);
        if (result == null) {
            return false;
        }
        
        if (result.get("value").equals(true)) {

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        return false;
    }
    
    public BasicDBList getList(String key) {
        DBCollection coll = getCollection();
        DBObject query = new BasicDBObject();
        query.put("key", key);


        DBObject result = coll.findOne(query);


        return (BasicDBList) result.get("value");
    }

View Full Code Here

        collectHistogramReports(docs, histograms, timestamp);
        collectMeterReports(docs, meters, timestamp);
        collectTimerReports(docs, timers, timestamp);


        try {
            final DBCollection collection = mongoConnection.getDatabase().getCollection("graylog2_metrics");
            // don't hang on to the data for too long.
            final BasicDBObject indexField = new BasicDBObject("timestamp", 1);
            final BasicDBObject indexOptions = new BasicDBObject("expireAfterSeconds", 5 * 60);
            collection.createIndex(indexField, indexOptions);


            collection.insert(docs, WriteConcern.UNACKNOWLEDGED);
        } catch (Exception e) {
            LOG.warn("Unable to write graylog2 metrics to mongodb. Ignoring this error.", e);
        }
    }

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        if (this.messageCountsCollection != null) {
            return this.messageCountsCollection;
        }


        // Collection has not been cached yet. Do it now.
        DBCollection coll = getDatabase().getCollection("message_counts");


        coll.createIndex(new BasicDBObject("timestamp", 1));


        this.messageCountsCollection = coll;
        return coll;
    }

View Full Code Here

    public Role addRole(String roleName, int type) throws MongoException {
        if (roleName == null) {
            throw new IllegalArgumentException("Role cannot be null!");
        }
        
        DBCollection coll = getCollection();


        Role role = getRole(roleName);
        if (role != null) {
            return null;
        }


        // Role does not exist; insert it...
        DBObject data = m_helper.serialize(roleName, type);


        WriteResult result = coll.insert(data);
        
        if (result.getLastError() != null) {
            result.getLastError().throwOnError();
        }

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        Filter filter = null;
        if (filterValue != null) {
            filter = FrameworkUtil.createFilter(filterValue);
        }


        DBCollection coll = getCollection();


        DBCursor cursor = coll.find();
        try {
            while (cursor.hasNext()) {
                // Hmm, there might be a more clever way of doing this...
                Role role = m_helper.deserialize(cursor.next());
                if ((filter == null) || filter.match(role.getProperties())) {

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        return roles.toArray(new Role[roles.size()]);
    }


    @Override
    public Role getRole(String name) {
        DBCollection coll = getCollection();


        DBCursor cursor = coll.find(getTemplateObject(name));
        try {
            if (cursor.hasNext()) {
                return m_helper.deserialize(cursor.next());
            }
        } finally {

View Full Code Here

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