Detect file type of container item

GroupDocs.Parser provides the functionality to detect a file type of container items by detectFileType(FileTypeDetectionMode) method.

FileTypeDetectionMode parameter provides the ability to control file type detection:

  • Default. The file type is detected by the file extension; if the file extension isn’t recognized, the file type is detected by the file content.
  • Extension. The file type is detected only by the file extension.
  • Content. The file type is detected only by the file content.

Here are the steps to detect a file type of container items:

The following example shows how to detect a file type of container items:

// Create an instance of Parser class
try (Parser parser = new Parser(Constants.SampleZip)) {
    // Extract attachments from the container
    Iterable<ContainerItem> attachments = parser.getContainer();
    // Check if container extraction is supported
    if (attachments == null) {
        System.out.println("Container extraction isn't supported");
    }
    // Iterate over attachments
    for (ContainerItem item : attachments) {
        // Detect the file type
        FileType fileType = item.detectFileType(FileTypeDetectionMode.Default);
        // Print the name and file type
        System.out.println(String.format("%s: %s", item.getName(), fileType));
    }
}

More resources

GitHub examples

You may easily run the code above and see the feature in action in our GitHub examples:

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