Returns Linked Data information about a SCUFL2 resource.
The idea is that say
http://ns.taverna.org.uk/2010/workflowBundle/74674670-04d0-4832-9651-bfc3a2ec3a19/workflow/HelloWorld/processor/Hello/out/fred"
will redirect to this service to "guess" the partial workflow structure
expressed in the URI - e.g. that we're talking about an output port
fred
in processor Hello
in workflow HelloWorld
in workflow bundle
with uuid 746....a19
.
http://localhost:3000/workflowBundle/74674670-04d0-4832-9651-bfc3a2ec3a19/workflow/HelloWorld/processor/Hello%20there/out/fred
returns JSON-LD):
{
"workflow": {
"processor": {
"inputProcessorPort": {
"@id": "workflow/HelloWorld/processor/Hello/in/hello",
"@type": "InputProcessorPort",
"name": "hello"
},
"@id": "workflow/HelloWorld/processor/Hello/",
"@type": "Processor",
"name": "Hello"
},
"@id": "workflow/HelloWorld/",
"@type": "Workflow",
"name": "HelloWorld"
},
"@context": {
"@base": "http://ns.taverna.org.uk/2010/workflowBundle/74674670-04d0-4832-9651-bfc3a2ec3a19/",
"@vocab": "http://ns.taverna.org.uk/2010/scufl2#"
},
"@id": "http://ns.taverna.org.uk/2010/workflowBundle/74674670-04d0-4832-9651-bfc3a2ec3a19/",
"@type": "WorkflowBundle"
}
Which is equivalent to the RDF triples:
@base <http://ns.taverna.org.uk/2010/workflowBundle/74674670-04d0-4832-9651-bfc3a2ec3a19/> .
<> <http://ns.taverna.org.uk/2010/scufl2#workflow> <workflow/HelloWorld/> .
<> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://ns.taverna.org.uk/2010/scufl2#WorkflowBundle> .
<workflow/HelloWorld/> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://ns.taverna.org.uk/2010/scufl2#Workflow> .
<workflow/HelloWorld/> <http://ns.taverna.org.uk/2010/scufl2#name> "HelloWorld" .
<workflow/HelloWorld/> <http://ns.taverna.org.uk/2010/scufl2#processor> <workflow/HelloWorld/processor/Hello/> .
<workflow/HelloWorld/processor/Hello/> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://ns.taverna.org.uk/2010/scufl2#Processor> .
<workflow/HelloWorld/processor/Hello/> <http://ns.taverna.org.uk/2010/scufl2#inputProcessorPort> <workflow/HelloWorld/processor/Hello/in/hello> .
<workflow/HelloWorld/processor/Hello/> <http://ns.taverna.org.uk/2010/scufl2#name> "Hello" .
<workflow/HelloWorld/processor/Hello/in/hello> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://ns.taverna.org.uk/2010/scufl2#InputProcessorPort> .
<workflow/HelloWorld/processor/Hello/in/hello> <http://ns.taverna.org.uk/2010/scufl2#name> "hello" .
This corresponds to what is defined inside the scufl2 workflow bundle.
- control links, activities, profiles, configurations, dispatch layer
- Other RDF formats: RDF/XML and Turtle
- Search myExperiment by UUID to add rdfs:seeAlso
- wfdesc
You will need Leiningen 1.7.0 or above installed.
To start a developer web server for the application, run:
lein ring server
To generate a WAR that can be installed into a servlet container like Apache Tomcat:
lein ring uberwar
This service is also available as a Docker image
stain/scufl2-info, exposing the ports 8080
(HTTP) and 8009
(AJP)
through tomcat.
docker run -p 8080:8080 stain/scufl2-info
If you are old-skool and unable to run a Servlet application server, it is possible to create a cgi-bin version, that although very slow (~ 4s response time), does not require any running processes or memory usage when the scufl2info service is not being accessed.
Build as:
lein ring uberjar
This produces a single jar in target/scufl2-info-0.4.1-SNAPSHOT-standalone.jar
. You can test this as:
stain@biggie-utopic:~/src/scufl2-info$ PATH_INFO=/workflowBundle/2f0e94ef-b5c4-455d-aeab-1e9611f46b8b/ java -jar target/scufl2-info-0.4.1-SNAPSHOT-standalone.jar
Status: 200
Content-Type: application/json; charset=utf-8
{
"@context" : {
"@base" : "http://ns.taverna.org.uk/2010/workflowBundle/2f0e94ef-b5c4-455d-aeab-1e9611f46b8b/",
"@vocab" : "http://ns.taverna.org.uk/2010/scufl2#"
},
"@id" : "http://ns.taverna.org.uk/2010/workflowBundle/2f0e94ef-b5c4-455d-aeab-1e9611f46b8b/",
"@type" : "WorkflowBundle"
}
See RFC3875 for details about the cgi-bin environment variables.
Now simply create a scufl2info.cgi
script to execute scufl2-info-0.4.1-SNAPSHOT-standalone.jar
:
#!/bin/sh
## Small memory footprint!
java -Xmx32M -jar lib/scufl2-info-0.4.1-SNAPSHOT-standalone.jar 2>&1
Remember to make the script executable with
chmod 755 scufl2info.cgi
Configuring your web server to run cgi-bin is out of scope for this document.
You might want to pretend this is in a folder /scufl2info/
using this .htaccess
:
RewriteEngine On
RewriteRule (.*) /cgi-bin/scufl2info.cgi/$1
Remember to add the final /
as otherwise the relative links will be wrong.
Copyright © 2014-2015 University of Manchester
This software is licensed under the MIT license.