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|
#!/usr/bin/ruby
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# https://developers.google.com/protocol-buffers/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
require 'google/protobuf/any_pb'
require 'google/protobuf/duration_pb'
require 'google/protobuf/field_mask_pb'
require 'google/protobuf/struct_pb'
require 'google/protobuf/timestamp_pb'
module Google
module Protobuf
Any.class_eval do
def self.pack(msg, type_url_prefix='type.googleapis.com/')
any = self.new
any.pack(msg, type_url_prefix)
any
end
def pack(msg, type_url_prefix='type.googleapis.com/')
if type_url_prefix.empty? or type_url_prefix[-1] != '/' then
self.type_url = "#{type_url_prefix}/#{msg.class.descriptor.name}"
else
self.type_url = "#{type_url_prefix}#{msg.class.descriptor.name}"
end
self.value = msg.to_proto
end
def unpack(klass)
if self.is(klass) then
klass.decode(self.value)
else
nil
end
end
def type_name
return self.type_url.split("/")[-1]
end
def is(klass)
return self.type_name == klass.descriptor.name
end
end
Timestamp.class_eval do
def to_time
Time.at(self.to_f)
end
def from_time(time)
self.seconds = time.to_i
self.nanos = time.nsec
end
def to_i
self.seconds
end
def to_f
self.seconds + (self.nanos.quo(1_000_000_000))
end
end
Duration.class_eval do
def to_f
self.seconds + (self.nanos.to_f / 1_000_000_000)
end
end
class UnexpectedStructType < Google::Protobuf::Error; end
Value.class_eval do
def to_ruby(recursive = false)
case self.kind
when :struct_value
if recursive
self.struct_value.to_h
else
self.struct_value
end
when :list_value
if recursive
self.list_value.to_a
else
self.list_value
end
when :null_value
nil
when :number_value
self.number_value
when :string_value
self.string_value
when :bool_value
self.bool_value
else
raise UnexpectedStructType
end
end
def from_ruby(value)
case value
when NilClass
self.null_value = 0
when Numeric
self.number_value = value
when String
self.string_value = value
when TrueClass
self.bool_value = true
when FalseClass
self.bool_value = false
when Struct
self.struct_value = value
when Hash
self.struct_value = Struct.from_hash(value)
when ListValue
self.list_value = value
when Array
self.list_value = ListValue.from_a(value)
else
raise UnexpectedStructType
end
end
end
Struct.class_eval do
def [](key)
self.fields[key].to_ruby
end
def []=(key, value)
unless key.is_a?(String)
raise UnexpectedStructType, "Struct keys must be strings."
end
self.fields[key] ||= Google::Protobuf::Value.new
self.fields[key].from_ruby(value)
end
def to_h
ret = {}
self.fields.each { |key, val| ret[key] = val.to_ruby(true) }
ret
end
def self.from_hash(hash)
ret = Struct.new
hash.each { |key, val| ret[key] = val }
ret
end
end
ListValue.class_eval do
include Enumerable
def length
self.values.length
end
def [](index)
self.values[index].to_ruby
end
def []=(index, value)
self.values[index].from_ruby(value)
end
def <<(value)
wrapper = Google::Protobuf::Value.new
wrapper.from_ruby(value)
self.values << wrapper
end
def each
self.values.each { |x| yield(x.to_ruby) }
end
def to_a
self.values.map { |x| x.to_ruby(true) }
end
def self.from_a(arr)
ret = ListValue.new
arr.each { |val| ret << val }
ret
end
end
end
end
|
