URLCellsReader.cpp

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/*******************************************************************************
 *
 * Copyright (c) 2010-2015   Edans Sandes
 *
 * This file is part of MASA-Core.
 * 
 * MASA-Core 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.
 * 
 * MASA-Core 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 MASA-Core.  If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/

#include "URLCellsReader.hpp"

#include "FileCellsReader.hpp"
#include "DummyCellsReader.hpp"
#include "SocketCellsReader.hpp"

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

URLCellsReader::URLCellsReader(string url) {
        int pos1 = url.find_first_of("://");
        if (pos1 == -1) {
                fprintf(stderr, "URLCellsReader: Wrong URL format: %s\n", url.c_str());
                exit(1);
        }
        string type = url.substr(0, pos1);
        string param = url.substr(pos1+3);


        fprintf(stderr, "%s:   %s - %s\n", url.c_str(), type.c_str(), param.c_str());
        if (type == "socket") {
                int port;
                string hostname;
                int pos2 = param.find_first_of(":");
                if (pos2 > 0) {
                        port = atoi(param.substr(pos2+1).c_str());
                        hostname = param.substr(0, pos2);
                } else {
                        hostname = param;
                }
                reader = new SocketCellsReader(hostname, port);
        } else if (type == "file") {
                reader = new FileCellsReader(param);
        } else if (type == "null") {
                int size = atoi(param.c_str());
                reader = new DummyCellsReader(size);
        } else {
                fprintf(stderr, "URLCellsReader: Unknown reader type: %s\n", type.c_str());
                exit(1);
        }
}

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

void URLCellsReader::close() {
        if (reader != NULL) {
                reader->close();
                reader = NULL;
        }
}

int URLCellsReader::getType() {
        return INIT_WITH_CUSTOM_DATA;
}

int URLCellsReader::read(cell_t* buf, int len) {
        return reader->read(buf, len);
}