src/test-generator/KeyValueGenerator.cpp

/*
 * KeyValueGenerator.cpp
 *
 *  Created on: 2009-09-09
 *      Author: dziki_rysio_997
 */

#include <fstream>
#include <cstdio>
#include <cstdlib>
#include <iostream>

std::string generateRandomString(int length);

using namespace std;

int main(int argc, char** argv) {

        if (argc != 7) {
                std::cout << "Usage: ./KeyValueGenerator fileName, reqCount, minKeyLength, maxKeyLength, minObjectSize, "
                        "maxObjectSize" << std::endl;
                return 1;
        }

        string fileName = argv[1];
        int count = atoi(argv[2]);
        int minKeyLength = atoi(argv[3]);
        int maxKeyLength = atoi(argv[4]);
        int minObjectSize = atoi(argv[5]);
        int maxObjectSize = atoi(argv[6]);

        ofstream output;
        output.open(fileName.c_str(), ios::out | ios::binary);
        output.write((char*) &count, sizeof(count));
        for (int i = 0; i < count; i++) {

                int keyLength = minKeyLength + rand() % (maxKeyLength - minKeyLength + 1);
                int valueLength = minObjectSize + rand() % (maxObjectSize - minObjectSize + 1);

                string key = generateRandomString(keyLength);
                string value = generateRandomString(valueLength);

                output.write((char*) &keyLength, sizeof(keyLength));
                output.write((char*) &valueLength, sizeof(valueLength));
                output.write((char*) key.c_str(), keyLength);
                output.write((char*) value.c_str(), valueLength);
        }

        return 0;
}

std::string generateRandomString(int length) {
        std::string output;
        for (int i = 0; i < length; i++)
                output += (char) ('a' + rand() % 26);
        return output;
}

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