Additionally, all external calls to the process are safely wrapped and reported with detailed exceptions if problems arise instead of just letting unknown exceptions bubble up from the unknown system depths to the caller.
For example, if you specify that you want to use stay_open support, the ExifTool class will actually check the native ExifTool executable for support for that feature before allowing the feature to be turned on and report the problem to the caller along with potential work-arounds if necessary. And lastly, to ensure that integration with the external ExifTool project is as robust and seamless as possible, this class also offers extensive pre-condition checking and error reporting during instantiation and use. The set of EXIF tags supported out of the box is based on the EXIF tags supported by the most popular mobile devices (iPhone, Android, BlackBerry, etc.) as well as some of the most popular cameras on the market (Canon point and shoot as well as DSLR). Even when using ExifTool in "daemon mode" via the -stay_open True command line argument, this project hides all the details required to make that work, automatically re-using the daemon process as well as eventually cleaning it up automatically along with supporting resources after a defined interval of inactivity so as to avoid resource leaks. All concepts of external process launching, management, communication, tag extraction, value conversion and resource cleanup are abstracted out by this project and all handled automatically for the caller. The goal of this project was to provide such a tight, well designed and performant integration with ExifTool that any Java developer using the class would have no idea that they weren't simply calling into a standard Java library while still being able to leverage the unmatched robustness of ExifTool. This project represents the most robust Java integrations with Phil Harvey's excellent ExifTool available.
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