File.cpp

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/*
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * Written (W) 1999-2010 Soeren Sonnenburg
 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
 * Copyright (C) 2010 Berlin Institute of Technology
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "lib/File.h"

#include "features/StringFeatures.h"
#include "features/SparseFeatures.h"

using namespace shogun;

CFile::CFile() : CSGObject()
{
    file=NULL;
    filename=NULL;
    variable_name=NULL;
}

CFile::CFile(FILE* f, const char* name) : CSGObject()
{
    file=f;
    filename=NULL;
    variable_name=NULL;

    if (name)
        set_variable_name(name);
}

CFile::CFile(char* fname, char rw, const char* name) : CSGObject()
{
    variable_name=NULL;
    task=rw;
    filename=strdup(fname);
    char mode[2];
    mode[0]=rw;
    mode[1]='\0';

    if (rw=='r' || rw == 'w')
    {
        if (filename)
        {
            if (!(file=fopen((const char*) filename, (const char*) mode)))
                SG_ERROR("Error opening file '%s'\n", filename);
        }
    }
    else
        SG_ERROR("unknown mode '%c'\n", mode[0]);

    if (name)
        set_variable_name(name);
}

void CFile::get_bool_vector(bool*& vector, int32_t& len)
{
    int32_t* int_vector;
    get_int_vector(int_vector, len);

    ASSERT(len>0);
    vector= new bool[len];

    for (int32_t i=0; i<len; i++)
        vector[i]= (int_vector[i]!=0);

    delete[] int_vector;
}

void CFile::set_bool_vector(const bool* vector, int32_t len)
{
    int32_t* int_vector = new int32_t[len];
    for (int32_t i=0;i<len;i++)
    {
        if (vector[i])
            int_vector[i]=1;
        else
            int_vector[i]=0;
    }
    set_int_vector(int_vector,len);
    delete[] int_vector;
}

void CFile::get_bool_matrix(bool*& matrix, int32_t& num_feat, int32_t& num_vec)
{
    SG_NOTIMPLEMENTED;
}

void CFile::set_bool_matrix(const bool* matrix, int32_t num_feat, int32_t num_vec)
{
    SG_NOTIMPLEMENTED;
}

void CFile::get_bool_string_list(
        TString<bool>*& strings, int32_t& num_str,
        int32_t& max_string_len)
{
    TString<int32_t>* strs;
    get_int_string_list(strs, num_str, max_string_len);

    ASSERT(num_str>0 && max_string_len>0);
    strings=new TString<bool>[num_str];

    SG_NOTIMPLEMENTED;
    //FIXME
}

void CFile::set_bool_string_list(const TString<bool>* strings, int32_t num_str)
{
    SG_NOTIMPLEMENTED;
    //FIXME
}

CFile::~CFile()
{
    close();
}

void CFile::set_variable_name(const char* name)
{
    free(variable_name);
    variable_name=strdup(name);
}

char* CFile::get_variable_name()
{
    return strdup(variable_name);
}