| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <ios> |
| #include <ostream> |
| #include <string> |
| #include <vector> |
| |
| #include <stout/numify.hpp> |
| #include <stout/strings.hpp> |
| |
| #include "handle.hpp" |
| |
| using std::ostream; |
| using std::string; |
| using std::vector; |
| |
| namespace routing { |
| |
| Try<Handle> Handle::parse(const string& str) |
| { |
| if (str == "root") { |
| return EGRESS_ROOT; |
| } |
| |
| vector<string> tokens = strings::tokenize(str, ":"); |
| if (tokens.size() != 2) { |
| return Error("Failed to tokenize string: " + str); |
| } |
| |
| // Handles should not have '0x' prefix, so we add '0x' to satisfy |
| // numify() here. If they do have a '0x' prefix, we expect an error. |
| Try<uint16_t> primary = numify<uint16_t>("0x" + tokens[0]); |
| if (primary.isError()) { |
| return Error("Failed to convert " + tokens[0] + " to a hex integer"); |
| } |
| |
| Try<uint16_t> secondary = numify<uint16_t>("0x" + tokens[1]); |
| if (secondary.isError()) { |
| return Error("Failed to convert " + tokens[1] + " to a hex integer"); |
| } |
| |
| return Handle(primary.get(), secondary.get()); |
| } |
| |
| |
| ostream& operator<<(ostream& stream, const Handle& handle) |
| { |
| stream << std::hex |
| << handle.primary() << ":" |
| << handle.secondary() |
| << std::dec; |
| return stream; |
| } |
| |
| } // namespace routing { |