1#!/usr/bin/ruby 2# Protocol Buffers - Google's data interchange format 3# Copyright 2008 Google Inc. All rights reserved. 4# https://developers.google.com/protocol-buffers/ 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions are 8# met: 9# 10# * Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# * Redistributions in binary form must reproduce the above 13# copyright notice, this list of conditions and the following disclaimer 14# in the documentation and/or other materials provided with the 15# distribution. 16# * Neither the name of Google Inc. nor the names of its 17# contributors may be used to endorse or promote products derived from 18# this software without specific prior written permission. 19# 20# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 32require 'google/protobuf/any_pb' 33require 'google/protobuf/duration_pb' 34require 'google/protobuf/field_mask_pb' 35require 'google/protobuf/struct_pb' 36require 'google/protobuf/timestamp_pb' 37 38module Google 39 module Protobuf 40 41 Any.class_eval do 42 def self.pack(msg, type_url_prefix='type.googleapis.com/') 43 any = self.new 44 any.pack(msg, type_url_prefix) 45 any 46 end 47 48 def pack(msg, type_url_prefix='type.googleapis.com/') 49 if type_url_prefix.empty? or type_url_prefix[-1] != '/' then 50 self.type_url = "#{type_url_prefix}/#{msg.class.descriptor.name}" 51 else 52 self.type_url = "#{type_url_prefix}#{msg.class.descriptor.name}" 53 end 54 self.value = msg.to_proto 55 end 56 57 def unpack(klass) 58 if self.is(klass) then 59 klass.decode(self.value) 60 else 61 nil 62 end 63 end 64 65 def type_name 66 return self.type_url.split("/")[-1] 67 end 68 69 def is(klass) 70 return self.type_name == klass.descriptor.name 71 end 72 end 73 74 Timestamp.class_eval do 75 def to_time 76 Time.at(self.to_f) 77 end 78 79 def from_time(time) 80 self.seconds = time.to_i 81 self.nanos = time.nsec 82 end 83 84 def to_i 85 self.seconds 86 end 87 88 def to_f 89 self.seconds + (self.nanos.quo(1_000_000_000)) 90 end 91 end 92 93 Duration.class_eval do 94 def to_f 95 self.seconds + (self.nanos.to_f / 1_000_000_000) 96 end 97 end 98 99 class UnexpectedStructType < Google::Protobuf::Error; end 100 101 Value.class_eval do 102 def to_ruby(recursive = false) 103 case self.kind 104 when :struct_value 105 if recursive 106 self.struct_value.to_h 107 else 108 self.struct_value 109 end 110 when :list_value 111 if recursive 112 self.list_value.to_a 113 else 114 self.list_value 115 end 116 when :null_value 117 nil 118 when :number_value 119 self.number_value 120 when :string_value 121 self.string_value 122 when :bool_value 123 self.bool_value 124 else 125 raise UnexpectedStructType 126 end 127 end 128 129 def from_ruby(value) 130 case value 131 when NilClass 132 self.null_value = 0 133 when Numeric 134 self.number_value = value 135 when String 136 self.string_value = value 137 when TrueClass 138 self.bool_value = true 139 when FalseClass 140 self.bool_value = false 141 when Struct 142 self.struct_value = value 143 when Hash 144 self.struct_value = Struct.from_hash(value) 145 when ListValue 146 self.list_value = value 147 when Array 148 self.list_value = ListValue.from_a(value) 149 else 150 raise UnexpectedStructType 151 end 152 end 153 end 154 155 Struct.class_eval do 156 def [](key) 157 self.fields[key].to_ruby 158 rescue NoMethodError 159 nil 160 end 161 162 def []=(key, value) 163 unless key.is_a?(String) 164 raise UnexpectedStructType, "Struct keys must be strings." 165 end 166 self.fields[key] ||= Google::Protobuf::Value.new 167 self.fields[key].from_ruby(value) 168 end 169 170 def to_h 171 ret = {} 172 self.fields.each { |key, val| ret[key] = val.to_ruby(true) } 173 ret 174 end 175 176 def self.from_hash(hash) 177 ret = Struct.new 178 hash.each { |key, val| ret[key] = val } 179 ret 180 end 181 182 def has_key?(key) 183 self.fields.has_key?(key) 184 end 185 end 186 187 ListValue.class_eval do 188 include Enumerable 189 190 def length 191 self.values.length 192 end 193 194 def [](index) 195 self.values[index].to_ruby 196 end 197 198 def []=(index, value) 199 self.values[index].from_ruby(value) 200 end 201 202 def <<(value) 203 wrapper = Google::Protobuf::Value.new 204 wrapper.from_ruby(value) 205 self.values << wrapper 206 end 207 208 def each 209 self.values.each { |x| yield(x.to_ruby) } 210 end 211 212 def to_a 213 self.values.map { |x| x.to_ruby(true) } 214 end 215 216 def self.from_a(arr) 217 ret = ListValue.new 218 arr.each { |val| ret << val } 219 ret 220 end 221 end 222 223 end 224end 225