C++ (Cpp) ChunkType::parseBSON Examples

Example #1

File: cluster_client_internal.cpp Project: chilinglam/mongo

    Status findAllChunks(const ConnectionString& configLoc,
                         const string& ns,
                         OwnedPointerVector<ChunkType>* chunks)
    {
        scoped_ptr<ScopedDbConnection> connPtr;
        scoped_ptr<DBClientCursor> cursor;

        try {
            connPtr.reset(ScopedDbConnection::getInternalScopedDbConnection(configLoc, 30));
            ScopedDbConnection& conn = *connPtr;
            scoped_ptr<DBClientCursor> cursor(_safeCursor(conn->query(ChunkType::ConfigNS,
                                                                      BSON(ChunkType::ns(ns)))));

            while (cursor->more()) {

                BSONObj chunkDoc = cursor->nextSafe();

                ChunkType* chunk = new ChunkType();
                string errMsg;
                if (!chunk->parseBSON(chunkDoc, &errMsg) || !chunk->isValid(&errMsg)) {
                    connPtr->done();
                    return Status(ErrorCodes::UnsupportedFormat,
                                  stream() << "invalid chunk " << chunkDoc
                                           << " read from the config server" << causedBy(errMsg));
                }

                chunks->mutableVector().push_back(chunk);
            }
        }
        catch (const DBException& e) {
            return e.toStatus();
        }

        connPtr->done();
        return Status::OK();
    }