ExtractorFactory

<code><a rd-options="" href="/link/ExtractorFactory?package=bdpar&version=2.0.0" data-mini-rdoc="bdpar::ExtractorFactory">ExtractorFactory</a></code> class builds the appropriate
<code><a rd-options="" href="/link/Instance?package=bdpar&version=2.0.0" data-mini-rdoc="bdpar::Instance">Instance</a></code> object according to the file extension.


Provide a tool to easily build customized data flows to pre-process large volumes
of information from different sources. To this end, 'bdpar' allows to (i) easily use and
create new functionalities and (ii) develop new data source extractors according to the
user needs. Additionally, the package provides by default a predefined data flow
to extract and pre-process the most relevant information (tokens, dates, ... ) from some textual
sources (SMS, Email, tweets, YouTube comments).

Miguel Ferreiro-D<c3><ad>az

bdpar

Big Data Preprocessing Architecture

David Ruano-Ord<c3><a1>s

Tom<c3><a1>s R. Cotos-Ya<c3><b1>ez

University of Vigo 

ExtractorFactory function

<code>ExtractorFactory$new()</code>

Constructor

<ul>
<li>registerExtractor:
adds an extractor to the list of extensions
<ul>
<li>Usage:
<code>registerExtractor(extension, extractor)</code></li>
<li>Arguments:
<ul>
<li>extension:
(character) the name of the extension option.</li>
<li>extractor:
(Object) the extractor of the new extension.</li>
</ul></li>
</ul></li>
<li>setExtractor:
modifies the extractor of the one extension.
<ul>
<li>Usage:
<code>setExtractor(extension, extractor)</code></li>
<li>Arguments:
<ul>
<li>extension:
(character) the name of the new extension.</li>
<li>extractor:
(Instance) the value of the new extractor.</li>
</ul></li>
</ul></li>
<li>removeExtractor:
removes a specific extractor throught the extension.
<ul>
<li>Usage:
<code>removeExtractor(extension)</code></li>
<li>Arguments:
<ul>
<li>extension:
(character) the name of the extension to remove.</li>
</ul></li>
</ul></li>
<li>getAllExtractors:
gets the list of extractors.
<ul>
<li>Usage:
<code>getAllExtractors()</code></li>
<li>Value:
Value of extractors.</li>
</ul></li>
<li>createInstance:
builds the <code><a rd-options="" href="/link/Instance?package=bdpar&version=2.0.0" data-mini-rdoc="bdpar::Instance">Instance</a></code> object according to the file extension.
<ul>
<li>Usage:
<code>createInstance(path)</code></li>
<li>Value:
the <code><a rd-options="" href="/link/Instance?package=bdpar&version=2.0.0" data-mini-rdoc="bdpar::Instance">Instance</a></code> corresponding object according to the file extension.</li>
<li>Arguments:
<ul>
<li>path:
(character) path of the file to create an <code><a rd-options="" href="/link/Instance?package=bdpar&version=2.0.0" data-mini-rdoc="bdpar::Instance">Instance</a></code>.</li>
</ul></li>
</ul></li>
</ul>

Methods

<code><a rd-options='' href='ExtractorFactory'>ExtractorFactory</a></code> class builds the appropriate
<code><a rd-options='' href='Instance'>Instance</a></code> object according to the file extension.

ExtractorFactory: Class to handle the creation of Instance types

Description

Usage

Arguments

Constructor

Methods

See Also