src/midgard_blob.c

/* 
 * Copyright (C) 2006 Piotr Pokora <piotr.pokora@infoglob.pl>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "midgard/midgard_blob.h"

struct MidgardBlobPrivate {
        MgdObject *attachment;
        const gchar *filename;
        MidgardConnection *mgd;
};

/* Instatiate new Midgard Blob. */
MidgardBlob midgard_object_new(MidgardConection *mgd, 
                MidgardObject *attachment)
{
        MidgardBlob *self = g_object_new(MIDGARD_TYPE_BLOB, NULL);
        self->private->attachment = attachment;

        const gchar *location;
        g_object_get(G_OBJECT(attachment), 
                        "location",
                        (gchar)&location, 
                        NULL);

        /* This is duplicated value */
        if(location)
                self->private->attachment = location;
}

/* Returns GIOChannel pointer for the given midgard_blob. */ 
GIOChannel midgard_blob_read(MidgardBlob *self)
{
        g_assert(self);
        
        if(self->private->filename) {
                 midgard_set_error(self->private->mgd->_mgd,
                                 MGD_GENERIC_ERROR,
                                 MGD_ERR_USER_DATA,
                                 "Invalid attachment. "
                                 "Can not read file from empty location");
                 return NULL;
        }

        /* FIXME! , get blobdir location */
        const gchar *blobdir = "";
        gchar *filepath = g_strconcat(blobdir, 
                        self->private->filename,
                        NULL);

        GError *err = NULL;
        GIOChannel *channel =
                g_io_channel_new_file(
                                filepath,
                                "r",
                                &err);  
        g_free(filepath);
        
        if(!channel){
                midgard_set_error(self->mgd->_mgd,
                                MGD_GENERIC_ERROR,
                                MGD_ERR_USER_DATA,
                                " %s ",
                                err->message);
                g_clear_error(&err);
                return NULL;
        }
}

/* Returns GIOChannel pointer for written blob file. */ 
extern GIOChannel midgard_blob_write(MidgardBlob *self,
                                const gchar *content);

/* Destroy Midgard Blob instance. */ 
extern void midgard_blob_destroy(MidgardBlob *self);

/* GOBJECT ROUTINES */

static void _midgard_blob_instance_init(
                 GTypeInstance *instance, gpointer g_class)
{
        MidgardBlob *self = (MidgardBlob *) instance;
        self->private = g_new(MidgardBlobPrivate, 1);
        
        self->private->attachment = NULL;
        self->private->filename = NULL;
}

static void _midgard_blob_finalize(GObject *object)
{
        g_assert(object);

        g_free(self->private->filename);
        g_free(self->private);

}

static void _midgard_blob_class_init(
                gpointer g_class, gpointer g_class_data)
{
        GObjectClass *gobject_class = G_OBJECT_CLASS (g_class);
        MidgardBlobClass *klass = MIDGARD_BLOB_CLASS (g_class);
        
        gobject_class->finalize = _midgard_collector_finalize;
        klass->read = midgard_blob_read;
        klass->write = midgard_blob_write;
        klass->destroy = midgard_blob_destroy;

}

/* Returns Midgard Blob Gtype value. */
extern GType midgard_blob_get_type(void)
{
        static GType type = 0;
        if (type == 0) {
                static const GTypeInfo info = {
                        sizeof (MidgardBlobClass),
                        NULL,           /* base_init */
                        NULL,           /* base_finalize */
                        (GClassInitFunc) _midgard_blob_class_init,
                        NULL,           /* class_finalize */
                        NULL,           /* class_data */
                        sizeof (MidgardCollector),
                        0,              /* n_preallocs */
                        (GInstanceInitFunc) _midgard_blob_instance_init /* instance_init */
                };
                type = g_type_register_static (G_TYPE_OBJECT,
                                "midgard_blob",
                                &info, 0);
        }
        return type;
}

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