ConnectionStreamDetectionExample.java

public class ConnectionStreamDetectionExample {    
    /**
     * Returns the correct input stream based on the content encoding
     * @param connection
     * @return
     * @throws IOException
     */
    private static InputStream getInputStream(HttpURLConnection connection) throws IOException {
        InputStream inputStream = null;

        if (connection.getContentEncoding() != null) {

            if (connection.getContentEncoding().equalsIgnoreCase("gzip") ||
                    connection.getContentEncoding().equalsIgnoreCase("x-gzip")) {
                inputStream = new GZIPInputStream(connection.getInputStream());
            } else if (connection.getContentEncoding().equalsIgnoreCase("deflate")) {
                inputStream = new DeflaterInputStream(connection.getInputStream());
            }
        }

        if (inputStream == null) {
            inputStream = connection.getInputStream();
        }
        return inputStream;
    }
}