133 lines
4.0 KiB
Ruby
133 lines
4.0 KiB
Ruby
# Copyright 2010 Google Inc.
|
|
#
|
|
# Licensed 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 Google
|
|
class APIClient
|
|
##
|
|
# This class wraps a result returned by an API call.
|
|
class Result
|
|
def initialize(reference, request, response)
|
|
@reference = reference
|
|
@request = request
|
|
@response = response
|
|
end
|
|
|
|
attr_reader :reference
|
|
|
|
attr_reader :request
|
|
|
|
attr_reader :response
|
|
|
|
def status
|
|
return @response[0]
|
|
end
|
|
|
|
def headers
|
|
return @response[1]
|
|
end
|
|
|
|
def body
|
|
return @body ||= (begin
|
|
response_body = @response[2]
|
|
merged_body = (response_body.inject(StringIO.new) do |accu, chunk|
|
|
accu.write(chunk)
|
|
accu
|
|
end).string
|
|
end)
|
|
end
|
|
|
|
def data
|
|
return @data ||= (begin
|
|
_, content_type = self.headers.detect do |h, v|
|
|
h.downcase == 'Content-Type'.downcase
|
|
end
|
|
media_type = content_type[/^([^;]*);?.*$/, 1].strip.downcase
|
|
data = self.body
|
|
case media_type
|
|
when 'application/json'
|
|
data = ::JSON.parse(data)
|
|
# Strip data wrapper, if present
|
|
data = data['data'] if data.has_key?('data')
|
|
else
|
|
raise ArgumentError,
|
|
"Content-Type not supported for parsing: #{media_type}"
|
|
end
|
|
if @reference.api_method && @reference.api_method.response_schema
|
|
# Automatically parse using the schema designated for the
|
|
# response of this API method.
|
|
data = @reference.api_method.response_schema.new(data)
|
|
data
|
|
else
|
|
# Otherwise, return the raw unparsed value.
|
|
# This value must be indexable like a Hash.
|
|
data
|
|
end
|
|
end)
|
|
end
|
|
|
|
def pagination_type
|
|
return :token
|
|
end
|
|
|
|
def page_token_param
|
|
return "pageToken"
|
|
end
|
|
|
|
def next_page_token
|
|
if self.data.respond_to?(:next_page_token)
|
|
return self.data.next_page_token
|
|
elsif self.data.respond_to?(:[])
|
|
return self.data["nextPageToken"]
|
|
else
|
|
raise TypeError, "Data object did not respond to #next_page_token."
|
|
end
|
|
end
|
|
|
|
def next_page
|
|
merged_parameters = Hash[self.reference.parameters].merge({
|
|
self.page_token_param => self.next_page_token
|
|
})
|
|
# Because References can be coerced to Hashes, we can merge them,
|
|
# preserving all context except the API method parameters that we're
|
|
# using for pagination.
|
|
return Google::APIClient::Reference.new(
|
|
Hash[self.reference].merge(:parameters => merged_parameters)
|
|
)
|
|
end
|
|
|
|
def prev_page_token
|
|
if self.data.respond_to?(:prev_page_token)
|
|
return self.data.prev_page_token
|
|
elsif self.data.respond_to?(:[])
|
|
return self.data["prevPageToken"]
|
|
else
|
|
raise TypeError, "Data object did not respond to #next_page_token."
|
|
end
|
|
end
|
|
|
|
def prev_page
|
|
merged_parameters = Hash[self.reference.parameters].merge({
|
|
self.page_token_param => self.prev_page_token
|
|
})
|
|
# Because References can be coerced to Hashes, we can merge them,
|
|
# preserving all context except the API method parameters that we're
|
|
# using for pagination.
|
|
return Google::APIClient::Reference.new(
|
|
Hash[self.reference].merge(:parameters => merged_parameters)
|
|
)
|
|
end
|
|
end
|
|
end
|
|
end
|