private String getNextURL(String uri, String baseUrl, MediaFileTagType uriType) {
if (uriType.equals(MediaFileTagType.RELATIVE_PLAYLIST_URI)
|| uriType.equals(MediaFileTagType.TRANSPORT_STREAM_URI)) {
return baseUrl.concat(uri);
}
return uri;
}
private void processFiles(String urlStr, MediaStreamAnalyzerResult result, boolean isAnalyzeTS) {
HLSMediaFile file = new HLSMediaFile(urlStr);
int lastIndex = urlStr.lastIndexOf('/');
String baseUrl = urlStr.substring(0, lastIndex + 1);
InputStreamReader inStreamReader = null;
BufferedReader reader = null;
LineNumberReader lineNumberReader = null;
try {
URLConnection connection = getConnection(urlStr, result);
InputStream inStream = (InputStream) connection.getContent();
inStreamReader = new InputStreamReader(inStream, Charset.forName("UTF-8"));
reader = new BufferedReader(inStreamReader);
lineNumberReader = new LineNumberReader(reader);
String line = "";
do {
line = lineNumberReader.readLine();
if (line != null && !line.trim().isEmpty()) {
MediaFileTagType lineType = MediaFileTagType.findTagByLine(line);
HLSMediaFileLineInfo lineInfo = new HLSMediaFileLineInfo();
lineInfo.setLineData(line);
lineInfo.setLineNumber(lineNumberReader.getLineNumber());
lineInfo.setLineType(lineType);
if (lineType.equals(MediaFileTagType.EXT_X_VERSION)) {
file.setVersion(Integer.parseInt(HLSUtility.getTagValue(line)));
}
file.addFileLine(lineInfo);
if (lineType.isURI() && !lineType.equals(MediaFileTagType.TRANSPORT_STREAM_URI)) {
String nextURL = this.getNextURL(line, baseUrl, lineType);
processFiles(nextURL, result, isAnalyzeTS);
} else if (lineType.equals(MediaFileTagType.TRANSPORT_STREAM_URI)) {
// verify TS file exists
String tsURL = this.getNextURL(line, baseUrl, lineType);
try {
URL url = new URL(tsURL);
HttpURLConnection tsConnection = (HttpURLConnection) url.openConnection();
tsConnection.setRequestMethod(HTTPMethods.HEAD.value());
tsConnection.connect();
int responseCode = tsConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_NOT_FOUND) {
logURIError(tsURL, result, file);
} else if (isAnalyzeTS) {
//
analyzeTransportStream(file, tsURL);
}
//
} catch (MalformedURLException e) {
logURIError(tsURL, result, file);
} catch (IOException e) {
logURIError(tsURL, result, file);
}
}
}
//
} while (line != null);
// After processing file, determine it's type.
MediaFileType fileType = MediaFileType.matchFileTypeOnIdentifyingTag(file.getFileLines());
file.setFileType(fileType);
result.getFiles().add(file);
} catch (MalformedURLException e) {
logURIError(urlStr, result, file);
} catch (IOException e) {
logURIError(urlStr, result, file);
} finally {
try {
if (inStreamReader != null) {
inStreamReader.close();
}
if (lineNumberReader != null) {
lineNumberReader.close();
}
if (lineNumberReader != null) {
reader.close();
}
} catch (IOException io) {
System.err.println("Unable to close readers!");
}
}
}
