public void transformToJson(List<YoutubeDescription> videos, String outputPath) {
String json = null;
try {
Writer write = new FileWriter(new File(outputPath));
JSONArray videosArray = new JSONArray();
for (YoutubeDescription video : videos) {
JSONObject jsonVideo = new JSONObject();
jsonVideo.put("title", video.getTitle());
jsonVideo.put("description", video.getDescription());
jsonVideo.put("categories", video.getCategories());
jsonVideo.put("tags", video.getTags());
videosArray.put(jsonVideo);
}
write.append(videosArray.toString());
write.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void main(String[] args) {
JsonInputParser parser = new JsonInputParser("data/outputTags.json", true);
List<YoutubeDescription> videos = parser.parseJson();
parser.transformToJson(videos, "data/output.json");
for (YoutubeDescription video : videos) {
System.out.println(video.toString());
}
}
/**
* Parses the JSON and returns a list of Youtube video descriptions
*
* @return
* @throws IOException
* @throws JSONException
*/
public List<YoutubeDescription> parseJson() {
StringBuffer jsonString = new StringBuffer();
List<YoutubeDescription> youtubeDescriptions = new ArrayList<>();
try {
BufferedReader readFile = new BufferedReader(new FileReader(new File(inputFilePath)));
String line = null;
while ((line = readFile.readLine()) != null) jsonString.append(line);
JSONArray youtubeDescriptionsArray = new JSONArray(jsonString.toString());
for (int i = 0; i < youtubeDescriptionsArray.length(); i++) {
YoutubeDescription video = new YoutubeDescription();
JSONObject youtubeDescriptionJson = youtubeDescriptionsArray.getJSONObject(i);
video.setId(i + 1);
video.setDescription(youtubeDescriptionJson.getString("description"));
video.setTitle(youtubeDescriptionJson.getString("title"));
JSONArray categoriesJson = youtubeDescriptionJson.getJSONArray("categories");
for (int j = 0; j < categoriesJson.length(); j++)
video.setIndividualCategory(categoriesJson.getString(j));
// If the output already contains tagged json
if (tagged) {
JSONArray tagsJson = youtubeDescriptionJson.getJSONArray("tags");
for (int j = 0; j < tagsJson.length(); j++) video.setIndividualTag(tagsJson.getString(j));
}
youtubeDescriptions.add(video);
}
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return youtubeDescriptions;
}
