| # 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. |
| |
| |
| module Qpid::Proton::Types |
| |
| # @private |
| def self.is_valid_utf?(value) |
| # In Ruby 1.9+ we have encoding methods that can check the content of |
| # the string, so use them to see if what we have is unicode. If so, |
| # good! If not, then just treat is as binary. |
| # |
| # No such thing in Ruby 1.8. So there we need to use Iconv to try and |
| # convert it to unicode. If it works, good! But if it raises an |
| # exception then we'll treat it as binary. |
| if RUBY_VERSION < "1.9" |
| return true if value.isutf8 |
| return false |
| else |
| return true if (value.encoding == "UTF-8" || |
| value.encode("UTF-8").valid_encoding?) |
| |
| return false |
| end |
| end |
| |
| # UTFString lets an application explicitly state that a |
| # string of characters is to be UTF-8 encoded. |
| # |
| class UTFString < ::String |
| |
| def initialize(value) |
| if !Qpid::Proton::Types.is_valid_utf?(value) |
| raise RuntimeError.new("invalid UTF string") |
| end |
| |
| super(value) |
| end |
| |
| end |
| |
| # BinaryString lets an application explicitly declare that |
| # a string value represents arbitrary data. |
| # |
| class BinaryString < ::String; end |
| |
| end |