1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
module OpenTox
class RestClientWrapper
attr_accessor :request, :response
# REST methods
# Raises OpenTox::Error if call fails (rescued in overwrite.rb -> halt 502)
# Waits for Task to finish and returns result URI of Task per default
# @param [String] destination URI
# @param [optional,Hash|String] Payload data posted to the service
# @param [optional,Hash] Headers with params like :accept, :content_type, :subjectid
# @param [optional,OpenTox::Task] waiting_task (can be a OpenTox::Subtask as well), progress is updated accordingly
# @param [wait,Boolean] Set to false to NOT wait for task if result is a task
# @return [RestClient::Response] REST call response
[:head,:get,:post,:put,:delete].each do |method|
define_singleton_method method do |uri,payload={},headers={},waiting_task=nil, wait=true|
# create request
args={}
args[:method] = method
args[:url] = uri
args[:timeout] = 600
args[:payload] = payload
headers.each{ |k,v| headers.delete(k) if v==nil } if headers #remove keys with empty values, as this can cause problems
args[:headers] = headers
# check input
bad_request_error "Invalid URI: '#{uri}'" unless URI.valid? uri
not_found_error "URI '#{uri}' not found." unless URI.accessible? uri
bad_request_error "Headers are not a hash: #{headers.inspect}" unless headers==nil or headers.is_a?(Hash)
# make sure that no header parameters are set in the payload
[:accept,:content_type,:subjectid].each do |header|
bad_request_error "#{header} should be submitted in the headers" if payload and payload.is_a?(Hash) and payload[header]
end
#bad_request_error "waiting_task is not 'nil', OpenTox::SubTask or OpenTox::Task: #{waiting_task.class}" unless waiting_task.nil? or waiting_task.is_a?(OpenTox::Task) or waiting_task.is_a?(OpenTox::SubTask)
# perform request
@request = RestClient::Request.new(args)
#begin
# do not throw RestClient exceptions in order to create a @response object (needed for error reports) in every case
@response = @request.execute { |response, request, result| return response }
# ignore error codes from Task services (may return error codes >= 400 according to API, which causes exceptions in RestClient and RDF::Reader)
raise OpenTox::RestCallError.new @request, @response, "Response code is #{@response.code}." unless @response.code < 400 or URI.task? uri
#return @response if @response.code==200 or !wait
# wait for task
#while @response.code==201 or @response.code==202
#@response = wait_for_task(@response, uri, waiting_task)
#end
@response
#rescue
#rest_error $!.message
#end
end
end
=begin
def wait_for_task( response, base_uri, waiting_task=nil )
task = nil
case @response.headers[:content_type]
when /application\/rdf\+xml/
# TODO: task uri from rdf
#task = OpenTox::Task.from_rdfxml(@response)
#task = OpenTox::Task.from_rdfxml(@response)
when /text\/uri-list/
rest_error "Uri list has more than one entry, should be a single task" if @response.split("\n").size > 1 #if uri list contains more then one uri, its not a task
task = OpenTox::Task.new(@response.to_s.chomp) if URI.available? @response.to_s
else
rest_error "Unknown content-type for task : '"+@response.headers[:content_type].to_s+"'"+" base-uri: "+base_uri.to_s+" content: "+@response[0..200].to_s
end
task.wait waiting_task
unless task.completed? # maybe task was cancelled / error
if task.errorReport
received_error task.errorReport, task.http_code, nil, {:rest_uri => task.uri, :rest_code => task.http_code}
else
rest_error "Status of task '"+task.uri.to_s+"' is no longer running (hasStatus is '"+task.status+
"'), but it is neither completed nor has an errorReport"
end
end
@response
end
def self.rest_error message
puts message
raise OpenTox::RestCallError.new @request, @response, message
end
def self.received_error( body, code, content_type=nil, params=nil )
# try to parse body TODO
body.is_a?(OpenTox::ErrorReport) ? report = body : report = OpenTox::ErrorReport.from_rdf(body)
rest_call_error "REST call returned error: '"+body.to_s+"'" unless report
# parsing sucessfull
# raise RestCallError with parsed report as error cause
err = OpenTox::RestCallError.new(@request, @response, "REST call subsequent error")
err.errorCause = report
raise err
end
=end
=begin
def self.received_error( body, code, content_type=nil, params=nil )
# try to parse body
report = nil
#report = OpenTox::ErrorReport.from_rdf(body)
if body.is_a?(OpenTox::ErrorReport)
report = body
else
case content_type
when /yaml/
report = YAML.load(body)
when /rdf/
report = OpenTox::ErrorReport.from_rdf(body)
end
end
unless report
# parsing was not successfull
# raise 'plain' RestCallError
err = OpenTox::RestCallError.new("REST call returned error: '"+body.to_s+"'")
err.rest_params = params
raise err
else
# parsing sucessfull
# raise RestCallError with parsed report as error cause
err = OpenTox::RestCallError.new("REST call subsequent error")
err.errorCause = report
err.rest_params = params
raise err
end
end
=end
end
end
|