Examples of org.bson.BSONObject

org.bson.BSONObject
A key-value map that can be saved to the database.

        final String collectionName = ns.substring(index + 1);
        final MongoCollection collection = resolveOrCreateCollection(collectionName);


        indexes.addDocument(indexDescription);


        BSONObject key = (BSONObject) indexDescription.get("key");
        if (key.keySet().equals(Collections.singleton("_id"))) {
            boolean ascending = Utils.normalizeValue(key.get("_id")).equals(Double.valueOf(1.0));
            collection.addIndex(new UniqueIndex("_id", ascending));
            log.info("adding unique _id index for collection {}", collectionName);
        } else if (Utils.isTrue(indexDescription.get("unique"))) {
            if (key.keySet().size() != 1) {
                throw new MongoServerException("Compound unique indices are not yet implemented");
            }


            log.info("adding unique index {} for collection {}", key.keySet(), collectionName);


            final String field = key.keySet().iterator().next();
            boolean ascending = Utils.normalizeValue(key.get(field)).equals(Double.valueOf(1.0));
            collection.addIndex(new UniqueIndex(field, ascending));
        } else {
            // TODO: non-unique non-id indexes not yet implemented
            log.warn("adding non-unique non-id index with key {} is not yet implemented", key);
        }

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            throw new MongoServerError(10093, "cannot insert into reserved $ collection");
        }
        MongoCollection collection = new MemoryCollection(getDatabaseName(), collectionName, "_id");
        addNamespace(collection);


        BSONObject indexDescription = new BasicBSONObject();
        indexDescription.put("name", "_id_");
        indexDescription.put("ns", collection.getFullName());
        indexDescription.put("key", new BasicBSONObject("_id", Integer.valueOf(1)));
        addIndex(indexDescription);


        log.info("created collection {}", collection.getFullName());


        return collection;

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                throw new MongoServerError(16459, "attempt to insert in system namespace");
            }
            final MongoCollection collection = resolveOrCreateCollection(collectionName);
            int n = collection.insertDocuments(documents);
            assert n == documents.size();
            final BSONObject result = new BasicBSONObject("n", Integer.valueOf(n));
            putLastResult(channel, result);
            return result;
        } catch (MongoServerError e) {
            putLastError(channel, e);
            throw e;

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            if (collection == null) {
                n = 0;
            } else {
                n = collection.deleteDocuments(selector, limit);
            }
            final BSONObject result = new BasicBSONObject("n", Integer.valueOf(n));
            putLastResult(channel, result);
            return result;
        } catch (MongoServerError e) {
            putLastError(channel, e);
            throw e;

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        for (BSONObject document : documents) {
            try {
                insertDocuments(channel, collectionName, Arrays.asList(document));
                n++;
            } catch (MongoServerError e) {
                BSONObject error = new BasicBSONObject();
                error.put("index", Integer.valueOf(n));
                error.put("code", Integer.valueOf(e.getCode()));
                error.put("errmsg", e.getMessage());
                writeErrors.add(error);
            }
        }
        BSONObject result = new BasicBSONObject();
        result.put("n", Integer.valueOf(n));
        if (!writeErrors.isEmpty()) {
            result.put("writeErrors", writeErrors);
        }
        // odd by true: also mark error as okay
        Utils.markOkay(result);
        return result;
    }

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    @Override
    public synchronized Iterable<Integer> getPositions(BSONObject query) {
        Object keyValue = getKeyValue(query);


        if (keyValue instanceof BSONObject) {
            BSONObject keyObj = (BSONObject) keyValue;
            if (Utils.containsQueryExpression(keyObj)) {
                if (keyObj.keySet().size() != 1) {
                    throw new UnsupportedOperationException("illegal query key: " + keyValue);
                }


                String expression = keyObj.keySet().iterator().next();
                if (expression.startsWith("$")) {
                    return getPositionsForExpression(keyObj, expression);
                }
            }
        } else if (keyValue instanceof Pattern) {

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        List<BSONObject> updates = (List<BSONObject>) query.get("updates");
        int n = 0;
        boolean updatedExisting = false;
        Collection<BSONObject> upserts = new ArrayList<BSONObject>();
        for (BSONObject updateObj : updates) {
            BSONObject selector = (BSONObject) updateObj.get("q");
            BSONObject update = (BSONObject) updateObj.get("u");
            boolean multi = Utils.isTrue(updateObj.get("multi"));
            boolean upsert = Utils.isTrue(updateObj.get("upsert"));
            final BSONObject result = updateDocuments(channel, collectionName, selector, update, multi, upsert);
            updatedExisting |= Utils.isTrue(result.get("updatedExisting"));
            if (result.containsField("upserted")) {
                final Object id = result.get("upserted");
                final BSONObject upserted = new BasicBSONObject("index", upserts.size());
                upserted.put("_id", id);
                upserts.add(upserted);
            }
            n += ((Integer) result.get("n")).intValue();
        }


        BSONObject response = new BasicBSONObject("n", Integer.valueOf(n));
        response.put("updatedExisting", Boolean.valueOf(updatedExisting));
        if (!upserts.isEmpty()) {
            response.put("upserted", upserts);
        }
        Utils.markOkay(response);
        putLastResult(channel, response);
        return response;
    }

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        @SuppressWarnings("unchecked")
        List<BSONObject> deletes = (List<BSONObject>) query.get("deletes");
        int n = 0;
        for (BSONObject delete : deletes) {
            final BSONObject selector = (BSONObject) delete.get("q");
            final int limit = ((Number) delete.get("limit")).intValue();
            BSONObject result = deleteDocuments(channel, collectionName, selector, limit);
            n += ((Integer) result.get("n")).intValue();
        }


        BSONObject response = new BasicBSONObject("n", Integer.valueOf(n));
        Utils.markOkay(response);
        return response;
    }

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            addIndex(indexDescription);
        }


        int indexesAfter = indexes.count();


        BSONObject response = new BasicBSONObject();
        response.put("numIndexesBefore", Integer.valueOf(indexesBefore));
        response.put("numIndexesAfter", Integer.valueOf(indexesAfter));
        Utils.markOkay(response);
        return response;
    }

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        Utils.markOkay(response);
        return response;
    }


    private BSONObject commandDatabaseStats() throws MongoServerException {
        BSONObject response = new BasicBSONObject("db", getDatabaseName());
        response.put("collections", Integer.valueOf(namespaces.count()));


        long indexSize = 0;
        long objects = 0;
        long dataSize = 0;
        double averageObjectSize = 0;


        for (MongoCollection collection : collections.values()) {
            BSONObject stats = collection.getStats();
            objects += ((Number) stats.get("count")).longValue();
            dataSize += ((Number) stats.get("size")).longValue();


            BSONObject indexSizes = (BSONObject) stats.get("indexSize");
            for (String indexName : indexSizes.keySet()) {
                indexSize += ((Number) indexSizes.get(indexName)).longValue();
            }


        }
        if (objects > 0) {
            averageObjectSize = dataSize / ((double) objects);

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