Java Utililty Methods File Mime Type

List of utility methods to do File Mime Type

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Description

The list of methods to do File Mime Type are organized into topic(s).

Method

StringdetectFileType(String location)
This function detects the file type of a file at the given location. 
String sanitizedLocation = location.replaceFirst("^/(.:/)", "$1");
Path filePath = Paths.get(sanitizedLocation);
return Files.probeContentType(filePath);
StringgetFileType(String fileName)
Determine a file type 
String fileType = null;
File file = new File(fileName);
try {
    if (file.isDirectory())
        return "dir";
    fileType = Files.probeContentType(file.toPath());
    if (fileType == null) {
        int index = fileName.lastIndexOf('.');
...
StringgetImageType(File file)
get Image Type 
return getFileType(file).split("/")[1];
StringgetMime(File file)
get Mime 
try {
    return Files.probeContentType(file.toPath());
} catch (IOException e) {
    e.printStackTrace();
return "";
StringgetMimeType(File file)
get Mime Type 
String mimetype = null;
try {
    mimetype = Files.probeContentType(file.toPath());
} catch (IOException ex) {
if (mimetype == null) {
    mimetype = "unknown";
return mimetype;
StringgetMimeType(String fileName)
get Mime Type 
try {
    return Files.probeContentType(Paths.get(fileName));
} catch (IOException e) {
    return "application/octet-stream";
StringgetType(File file)
This methods returns a type according to the file 
try {
    String contentType = Files.probeContentType(Paths.get(file.getAbsolutePath()));
    if (contentType != null) {
        return contentType;
} catch (Exception ignore) {
String fileName = file.getName();
...
booleanisMP3(File file)
Checks if is mp3. 
try {
    Path filepath = Paths.get(file.getAbsolutePath());
    String contentType = Files.probeContentType(filepath);
    if (contentType.equals(MP3_MEDIA_TYPE))
        return true;
} catch (IOException e) {
    System.err.println("Error while detecting media type");
return false;
booleanisValidImage(File file)
is Valid Image 
if (!file.exists()) {
    return false;
String type = Files.probeContentType(file.toPath());
switch (type) {
case "image/jpeg":
    return isValidJpeg(file);
case "image/png":
...