Soporte.cpp

/************************************************************************
                        Soporte.h.cpp - Copyright rodrigo

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This file was generated on sáb oct 11 2008 at 17:15:49
The original location of this file is /home/rodrigo/uml-generated-code/Soporte.cpp
**************************************************************************/

#include "Soporte.h"
#include "Directorio.h"

// Constructor // Destructuctor
Soporte::Soporte ( ){
    this->directorios.clear();
    this->espacioLibre = 0;
}

Soporte::~Soporte ( ){
    this->eliminarDirectorios();
}


void Soporte::agregarDirectorio (Directorio* directorio ) {
    this->directorios.push_back(directorio);
}

// TODO: Analizar la mejora de mantener un orden y hacer busqueda binaria!!!
void Soporte::borrarDirectorio (const string ruta ) {
    Directorio* dir;
    list<Almacenable*>::iterator it = this->directorios.begin();
    bool encontrado = false;
    while ((!encontrado) && ( it != this->directorios.end())){
        if ( ((Directorio*)*it)->getRuta() == ruta) {
            dir = (Directorio*)*it;
            delete dir;
            it = this->directorios.erase(it);
            encontrado = true;
        }
        else
            it++;
     }
}

/**
 * Elimina el directorio del soporte
 * @param  directorio El directorio a eliminar
 */
void Soporte::borrarDirectorio (const unsigned int id ){
    list<Almacenable *>::iterator it = this->directorios.begin();
    bool encontrado = false;
    while ((!encontrado) && ( it != this->directorios.end())){
        if ( ((Directorio*)*it)->getId() == id) {
            delete (*it);
            it = this->directorios.erase(it);
            encontrado = true;
        }
        else
            it++;
     }
}

/**
 * @return bool TRUE si existe el directorio en el soporte, false en caso cotnrario
 * @param  ruta La ruta del directorio a verificar
 */
bool Soporte::existeDirectorio (string ruta ) {
    Directorio* dir = NULL;
    bool existe = false;
    list<Almacenable *>::iterator it =  this->directorios.begin();
    while ( (!existe) && (it != this->directorios.end()) ){
        dir = (Directorio*)*it;
        if (ruta.compare(dir->getRuta()) == 0){
            existe = true;
            }

        it++;
     }

    return existe;
}


/**
 * @return Directorio
 * @param  ID_Directorio
 */
Directorio* Soporte::obtenerDirectorio (const unsigned int id ) {
    pthread_mutex_lock( &this->directoriosMutex );
    list<Almacenable *>::iterator it = this->directorios.begin();
    Directorio* directorio = NULL;
    while ((!directorio) && ( it != this->directorios.end())){
        if ( ((Directorio*)*it)->getId() == id) {
            directorio = (Directorio*)*it;
        }
        it++;
     }
     pthread_mutex_unlock( &this->directoriosMutex );
     return directorio;
}

Directorio* Soporte::obtenerDirectorio(const string ruta ) {
    pthread_mutex_lock( &this->directoriosMutex );
    list<Almacenable *>::iterator it = this->directorios.begin();
    Directorio* dir= NULL;
    while ((!dir) && ( it != this->directorios.end())){
        if ( ((Directorio*)*it)->getRuta() == ruta) {
            dir = (Directorio*)*it;
        }
        it++;
     }
     pthread_mutex_unlock( &this->directoriosMutex );
     return dir;
}

Portador* Soporte::obtenerPortador (const unsigned int id ) {
    pthread_mutex_lock( &this->directoriosMutex );
    list<Almacenable*>::iterator it = this->directorios.begin();
    Portador* portador = NULL;
    Directorio* directorio;
    while ((!portador) && ( it != this->directorios.end())){
        directorio = (Directorio*)*it;
        portador = directorio->obtenerPortador(id);
        it++;
     }
     pthread_mutex_unlock( &this->directoriosMutex );
     return portador;
}



unsigned int Soporte::obtenerCantidadDirectorios ( ) {
    pthread_mutex_lock( &this->directoriosMutex );
    pthread_mutex_unlock( &this->directoriosMutex );
    return this->directorios.size();
}

list<Almacenable*>* Soporte::obtenerDirectorios ( ){
    pthread_mutex_lock( &this->directoriosMutex );
    pthread_mutex_unlock( &this->directoriosMutex );
    return (&this->directorios);
}

list<Almacenable*> Soporte::obtenerCopiaDirectorios ( ) {
    pthread_mutex_lock( &this->directoriosMutex );
    pthread_mutex_unlock( &this->directoriosMutex );
    return this->directorios;
}

list<Almacenable*> Soporte::obtenerCopiaDirectorios ( const unsigned int tamano ){
    pthread_mutex_lock( &this->directoriosMutex );
    list<Almacenable *>::iterator it = this->directorios.begin();
    list<Almacenable *>::iterator itResultado;
    list<Almacenable*> resultado;
    Directorio* directorio;
    bool insertado;
    while ( it != this->directorios.end()){ // insercion ordenada en lista
        directorio = (Directorio*)*it;
        if (directorio->getEspacioLibre() >= tamano){
            if (resultado.empty())
                resultado.push_front(directorio);
            else{
                itResultado = resultado.begin();
                insertado = false;
                while ((!insertado) && (itResultado != resultado.end())){
                    if (((Directorio*)*itResultado)->getEspacioLibre() < directorio->getEspacioLibre()){
                        resultado.insert(itResultado,directorio);
                        insertado = true;
                    }
                    itResultado++;
                }
                if (!insertado)
                    resultado.push_back(directorio);
            }
        }
        it++;
    }
    pthread_mutex_unlock( &this->directoriosMutex );
    return resultado;
}

list<Almacenable*> Soporte::obtenerCopiaDirectoriosParaCompletar( const unsigned int tamano ){
    pthread_mutex_lock( &this->directoriosMutex );
    list<Almacenable*> resultado;
    list<Almacenable*> lista = this->obtenerListaEspacioLibreDescendente();
    list<Almacenable *>::iterator it = lista.begin();
    unsigned long acumulado = 0;

    while ((it != lista.end()) && (acumulado < tamano)){
        acumulado += ((Directorio*)*it)->getEspacioLibre();
        resultado.push_back(*it);
        it++;
    }
    pthread_mutex_unlock( &this->directoriosMutex );
    return resultado;
}


Directorio* Soporte::obtenerDirectorioContenedor( const unsigned int idImagen ){
    pthread_mutex_lock( &this->directoriosMutex );
    list<Almacenable *>::iterator it = this->directorios.begin();
    Directorio* dir = NULL;

    while ((it != this->directorios.end()) && (!dir)){
        if (((Directorio*)*it)->existePortador(idImagen)){
            dir = ((Directorio*)*it);
            }
        it++;
    }
    pthread_mutex_unlock( &this->directoriosMutex );
    return dir;
}

void Soporte::actualizarEspacioLibre(){
    pthread_mutex_lock( &this->directoriosMutex );
    this->espacioLibre = 0;
    list<Almacenable *>::iterator it = this->directorios.begin();
    while ( it != this->directorios.end()){
       this->espacioLibre += (((Directorio*)*it)->getEspacioLibre());
       it++;
    }
    pthread_mutex_unlock( &this->directoriosMutex );
}

unsigned long int Soporte::getEspacioLibre ( ){
    return this->espacioLibre;
}

void Soporte::setDirectorios ( list<Almacenable*> new_var ){
    pthread_mutex_lock( &this->directoriosMutex );
    this->eliminarDirectorios();
    this->directorios = new_var;
    pthread_mutex_unlock( &this->directoriosMutex );
}

void Soporte::setEspacioLibre ( const unsigned long int espacioLibre ){
    this->espacioLibre = espacioLibre;
}

void Soporte::agregarEspacioLibre (const unsigned long int masEspacioLibre ){
    this->espacioLibre+= masEspacioLibre;
}

void Soporte::reducirEspacioLibre (const unsigned long int menosEspacioLibre ){
    this->espacioLibre-= menosEspacioLibre;
}

//private
 /* Elimina la lista de directorios del soporte*/
 void Soporte::eliminarDirectorios(){
    list<Almacenable *>::iterator it = this->directorios.begin();
    while ( it != this->directorios.end() ){
        delete (*it);
        it = this->directorios.erase(it);
     }
 }

bool ordenarEspacioLibre (Almacenable* res1, Almacenable* res2){
    if((((Directorio*)res1)->getEspacioLibre()) < (((Directorio*)res2)->getEspacioLibre()))
        return true;
        else
            return false;
}

list<Almacenable*> Soporte::obtenerListaEspacioLibreDescendente(){
    list<Almacenable*> resultado;
    resultado = this->directorios;
    resultado.sort(ordenarEspacioLibre);
    return resultado;
}