and-filter-operator

AND Filter operator

The AND Filter operator is a WireCloud operator that provides the ability to filter a source list with a set of conditions defined by the user. The resulting list's items will fulfill all the chosen conditions.

Build

Be sure to have installed Node.js in your system. For example, you can install it on Ubuntu and Debian running the following commands:

curl -sL https://deb.nodesource.com/setup | sudo bash -
sudo apt-get install nodejs
sudo apt-get install npm

If you want the last version of the operator, you should change to the develop branch:

git checkout develop

Install other npm dependencies by running: (need root because some libraries use applications, check package.json before to be sure)

sudo npm install

For build the operator you need download grunt:

sudo npm install -g grunt-cli

And now, you can use grunt:

grunt

If everything goes well, you will find a wgt file in the dist folder.

Settings

No settings needed for this operator to wortk.

Wiring

Input Endpoints

• Original List: List with the original values
• Condition List: List of conditions to be fulfilled by the values of the original list to pass the filter. Supported filters:
  • in: checks if the value of a given attribute is equal to a list of provided values. E.g.: {"type": "in", "attr": "milestone", "values": ["Nov 2015", "Dec 2015", "Jan 2016"]}.
  • range: checks if the value of a given attribute is within a range of numbers. E.g.: {"type": "range", "attr": "level", "start": 1, "end": 4}.
  • eq: checks if the value of a given attribute is equal to a given value. E.g.: {"type": "eq", "attr": "state", "value": "closed"}.
  • not: checks if the value of a given attribute is not equal to a given value. E.g.: {"type": "not", "attr": "state", "value": "closed"}.
  • some: checks if any of the values of a given attribute is equal to a given value. E.g.: {type: "some", "attr": changesList, "value": "change"}

Output Endpoints

• Filtered List: This endpoint provides a list with the values of Original List passing the conditions indicated by the Condition List.

Usage

Plug in any kind of data and a set of conditions (for example, the jira-harvester operator and the conditions provived by the set-generic-filter-conditions widget).

Reference

• FIWARE Mashup

Copyright and License

Copyright (c) 2016 CoNWeT Licensed under the Apache2 license.