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import java.io.IOException;
import java.util.Random;
import java.io.FileOutputStream;
/*
* This class will generate a json file containing 200 songs by default.
* Defaults:
* 1.) No. of songs - 200
* 2.) Seed - 200
* 3.) File name - "hundres_songs.json"
*
* If you want to change any of the default values pass them as arguments in the following:
* arg #1 No. of songs (Integer)
* arg #2 Seed (Integer)
* arg #3 File name (String) e.g <some-name>.json
*/
public class GenerateSongsJson {
private static final StringBuilder sb = new StringBuilder();
public static void main(String []args) throws IOException {
int numOfSongs = 200;
int seed = 200;
String fileName = "hundres_songs.json";
if (args.length != 0) {
try {
numOfSongs = Integer.parseInt(args[0]);
seed = Integer.parseInt(args[1]);
fileName = args[2];
} catch (NumberFormatException e) {
System.out.println("Please enter the args as mentioned in the comment above.");
throw (e);
}
}
Random randomNum = new Random(seed);
FileOutputStream outputStream = new FileOutputStream(fileName);
sb.append("{ \n");
sb.append(" \"FLAGS\": \"browsable\", \n\n");
sb.append(" \"METADATA\": { \n");
sb.append(" \"MEDIA_ID\": \"hundreds_songs\", \n");
sb.append(" \"DISPLAY_TITLE\": \"More songs\" \n");
sb.append(" },\n\n");
sb.append(" \"CHILDREN\": [ \n");
for (int i = 1; i <= numOfSongs; i++) {
int num1 = randomNum.nextInt(10000);
int num2 = num1/1000;
sb.append(" { \n ");
sb.append(" \"FLAGS\": \"playable\",\n");
sb.append(" \"METADATA\": { \n");
sb.append(" \"MEDIA_ID\": \"hundreds_songs normal " + num2 + "s song" + i +"\",\n");
sb.append(" \"DISPLAY_TITLE\": \"Normal " + num2 + "s song" + i + "\",\n");
sb.append(" \"DURATION\": " + num1 + "\n");
sb.append(" } \n");
sb.append(" },\n");
}
sb.deleteCharAt(sb.length() - 2);
sb.append(" ]\n");
sb.append("}");
byte[] strToBytes = sb.toString().getBytes();
outputStream.write(strToBytes);
outputStream.close();
}
}
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