检测流是否使用Java压缩的最佳方法

import java.io.IOException;
import java.io.InputStream;

public class StreamCompressionDetector {
    public static boolean isGzipCompressed(InputStream inputStream) throws IOException {
        int byte1 = inputStream.read() & 0xFF;
        int byte2 = inputStream.read() & 0xFF;
        return (byte1 == 0x1F && byte2 == 0x8B);
    }

    public static boolean isZipCompressed(InputStream inputStream) throws IOException {
        int byte1 = inputStream.read() & 0xFF;
        int byte2 = inputStream.read() & 0xFF;
        int byte3 = inputStream.read() & 0xFF;
        int byte4 = inputStream.read() & 0xFF;
        return (byte1 == 0x50 && byte2 == 0x4B && byte3 == 0x03 && byte4 == 0x04);
    }
}