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
|
require 'rubygems'
gem 'opentox-ruby-api-wrapper', '= 1.2.7'
require 'opentox-ruby-api-wrapper'
class Dataset
include DataMapper::Resource
property :id, Serial
property :uri, String, :length => 255
property :file, String, :length => 255
#property :owl, Text, :length => 1000000
property :created_at, DateTime
def owl
File.read self.file
end
def owl=(owl)
self.file = File.join(File.dirname(File.expand_path(__FILE__)),'public',"#{id}.owl")
File.open(self.file,"w+") { |f| f.write owl }
end
end
DataMapper.auto_upgrade!
## REST API
get '/?' do
Dataset.all.collect{|d| d.uri}.join("\n")
end
get '/:id/?' do
begin
dataset = Dataset.get(params[:id])
rescue => e
LOGGER.error e.message
LOGGER.warn e.backtrace
halt 404, "Dataset #{params[:id]} not found."
end
accept = request.env['HTTP_ACCEPT']
accept = 'application/rdf+xml' if accept == '*/*' or accept == '' or accept.nil?
case accept
when /rdf/ # redland sends text/rdf instead of application/rdf+xml
dataset.owl
when /yaml/
OpenTox::Dataset.find(dataset.uri).to_yaml
else
halt 400, "Unsupported MIME type '#{accept}'"
end
end
get '/:id/features/:feature_id/?' do
OpenTox::Dataset.find(url_for("/#{params[:id]}", :full)).feature(params[:feature_id])
end
get '/:id/features/?' do
OpenTox::Dataset.find(url_for("/#{params[:id]}", :full)).features
end
post '/?' do
task = OpenTox::Task.create
pid = Spork.spork(:logger => LOGGER) do
task.started
LOGGER.debug "Dataset task #{task.uri} started"
dataset = Dataset.new
dataset.save
uri = url_for("/#{dataset.id}", :full)
content_type = request.content_type
content_type = "application/rdf+xml" if content_type.nil?
case request.content_type
when "application/rdf+xml"
rdf = request.env["rack.input"].read
d= OpenTox::Dataset.new
d.rdf = rdf
d.uri = uri
else
halt 404, "MIME type \"#{request.content_type}\" not supported."
end
LOGGER.debug "Saving dataset #{uri}."
begin
dataset.owl = d.rdf
dataset.uri = uri
dataset.save
task.completed(uri)
rescue => e
LOGGER.error e.message
LOGGER.info e.backtrace
halt 500, "Could not save dataset #{uri}."
end
LOGGER.debug "#{dataset.uri} saved."
end
task.pid = pid
#status 303 # rest client tries to redirect
task.uri
end
delete '/:id/?' do
begin
dataset = Dataset.get(params[:id])
File.delete dataset.file
dataset.destroy!
"Dataset #{params[:id]} deleted."
rescue
halt 404, "Dataset #{params[:id]} does not exist."
end
end
delete '/?' do
Dataset.all.each do |d|
begin
File.delete d.file
rescue
LOGGER.error "Cannot delete dataset file '#{d.file}'"
end
#d.destroy!
end
Dataset.auto_migrate!
"All datasets deleted."
end
|
