FiReS - property management for Filtering, Retrieval and Search

(c) 2014 - 2020. VGLAB / VG-Lab / URJC / UPM

www.vglab.es www.vg-lab.es vg-lab@vg-lab.es

Introduction

FiReS is a library that allow registering type-independent properties in objects. FiReS also provides tasks that can use the registered properties for filtering, search, sorting operations over a set of objects.

Dependencies

Boost.Any, Boost.Lexical_Cast, Boost.property_tree and Boost.Spirit are the only required dependencies.

OpenMP and Boost's Unit Test Framework are optional.

Building

FiReS has been succesfully built and used on Ubuntu 16.04, Mac OSX Yosemite and Windows 7/8/10 (Visual Studio 2015 Win64). The following steps should be enough to build it:

git clone https://github.com/vg-lab/FiReS.git
mkdir FiReS/build && cd FiReS/build
cmake .. -DCMAKE_BUILD_TYPE=Release
make

How to use it

Registering properties

class MyClass : public fires::Object
{
};
...
MyClass myObject;
myObject.registerProperty( "property1", 3.0f );
myObject.registerProperty( "property2", int( 2 ));

Retrieving properties

float v1 = myObject.getProperty( "property1" ).value( );
int v2 = myObject.getProperty( "property2" ).value( );

Creating notifier/observer

class MyClass : public fires::Object
{
public:
  FIRES_OBSERVER_CALLBACK( observerCallback, notifier, propertyLabel )
  {
    std::cout << label( ) << ": Hey!" << " object " << notifier->label( )
              << " updated " << propertyLabel << " to "
              << notifier->getProperty( "p1" ).value< int >( ) << std::endl;
  }
};
...
MyClass o1, o2;
o1.label( ) = "o1";
o2.label( ) = "o2";
o1.registerProperty( "p1", 1 );
fires::ObserverManager::addObserver( &o1, "p1", &o2, &MyClass::observerCallback );
o1.setProperty( "p1", 2 );
// output:
// o2: Hey! object o1 updated p1

Sorting

class MyClass : public fires::Object
{
};

int main ( )
{

  MyClass o1, o2, o3, o4;

  fires::Sort sorter;
  fires::SortConfig sortConfig;
  fires::ScalarPropertySorter< float > sfsf;
  fires::Objects objs;

  // Register property
  o1.registerProperty( "p1", 3.1f );
  o2.registerProperty( "p1", 4.1f );
  o3.registerProperty( "p1", 1.2f );
  o4.registerProperty( "p1", 3.1f );

  // Create the objects container
  objs.addList( { &o1, &o2, &o3, &o4 } );

  // Configure sort config
  sortConfig.addProperty( "p1", &sfsf );

  // Eval the task
  sorter.eval( objs, sortConfig );
}