eea.sparql 1.2

Wrapper for Products.ZSPARQLMethod

EEA Sparql

EEA Sparql is a plone product for fetching data from Linked open data servers (sparql endpoints).

Contents

Contents

• EEA Sparql

• Contents

• Introduction

• Main features

• Installation

• Dependecies

• Source code

• Copyright and license

• Links

• Funding

• Changelog

  • 1.2 - (2012-04-11)

  • 1.1 - (2012-03-30)

  • 1.0 - (2012-03-05)

Introduction

It is simple to use, you only have to specify the sparql endpoint url and the sparql query. The results will be converted in an exhibit json, what can easily be reused (ex. by eea.daviz).

Main features

The main features are:

1. create sparql queries

2. create sparql bookmark folders, sparql queries are created automatically, and can be synchronized manually or automatically (with a cronjob). If a query is changed, a new version of the object is created, so older ones are not lost.

3. results are downloadable in various formats: JSON, Exhibit JSON, HTML, XML, XML with Schema, CSV, TSV

Installation

To install eea.sparql into the global Python environment (or a workingenv), using a traditional Zope 2 instance, you can do this:

• When you’re reading this you have probably already run easy_install eea.sparql. Find out how to install setuptools (and EasyInstall) here: http://peak.telecommunity.com/DevCenter/EasyInstall

• If you are using Zope 2.9 (not 2.10), get pythonproducts and install it via:

  python setup.py install --home /path/to/instance

  into your Zope instance.

• Create a file called eea.sparql-configure.zcml in the /path/to/instance/etc/package-includes directory. The file should only contain this:

  <include package="eea.sparql" />

Alternatively, if you are using zc.buildout and the plone.recipe.zope2instance recipe to manage your project, you can do this:

• Add eea.sparql to the list of eggs to install, e.g.:

  [buildout]
  eggs = eea.sparql

• Tell the plone.recipe.zope2instance recipe to install a ZCML slug:

  [instance]
  recipe = plone.recipe.zope2instance
  zcml = eea.sparql

• Re-run buildout, e.g. with:

  $ ./bin/buildout

You can skip the ZCML slug if you are going to explicitly include the package from another package’s configure.zcml file.

Dependecies

1. Plone 4.x

2. Products.ZSPARQLMethod

3. eea.cache

4. eea.versions

Source code

Latest source code (Plone 4 compatible):

https://svn.eionet.europa.eu/repositories/Zope/trunk/eea.sparql/trunk

Copyright and license

The Initial Owner of the Original Code is European Environment Agency (EEA). All Rights Reserved.

The EEA Sparql (the Original Code) is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

More details under docs/License.txt

Links

1. http://en.wikipedia.org/wiki/SPARQL

2. http://sparql.org/

3. http://www.w3.org/TR/rdf-sparql-query/

Funding

EEA - European Enviroment Agency (EU)

Changelog

1.2 - (2012-04-11)

• Bug fix: Invalidate memcache and varnish for Sparql instances and related items [voineali #5074]

• Feature: Made timeout mandatory, and set default value to 10 seconds [szabozo0 #5079]

• Bug fix: Fixed synchronization problems for sparql bookmark folders [szabozo0 #5078]

• Bug fix: Remove comments from queries so sparql-query should not fail [szabozo0 #5073]

• Bug fix: Explicitly close connections with remote servers and serve files in small chuncks on sparql to JSON/XML export. [voineali #5073]

• Upgrade step: Manually remove apache quickfixes from frontend servers

1.1 - (2012-03-30)

• Change: Added default workflow mapping. [demarant #5002]

• Upgrade step: Within ZMI > Site setup > Import types. For workflow change if have old content to migrate: Plone > Types > change workflow: - Sparql -> one_state_workflow - SparqlBookmarksFolder -> folder_workflow define the state mapping as you prefer.

• Upgrade step: Within “Plone > Site setup > Add-ons” click on upgrade button available for eea.sparql [voineali #4968]

• Feature: Added a table preview for sparql objects when used togheter with eea.relations and eea.facetednavigation [voineali #4968]

• Change: moved sparql.css in portal_css [szabozo0 #4968]

• Feature: added page for syncing all sparql bookmark folders [szabozo0 #5004]

• Change: added default icons for sparql and sparql bookmarks folder [demarant]

• Change: Improved table preview dissolve design and template headings [demarant]

• Bug fix: Fixed default view for sparql, so workflow dropdown is now displayed [szabozo0 #5002]

• Bug fix: Fixed format of column properties in exhibit json [szabozo0 #4992]

1.0 - (2012-03-05)

• Initial release [Zoltan Szabo]