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April 14, 2016 08:22
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One Line IP to Long and Back
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| ip = "192.168.0.1" | |
| // Encode | |
| e = (ip.split(/\./) as List).withIndex().collect { v,i->Long.parseLong(v) << (24 - (8 * i))}.inject(0) {a,b -> a+b } | |
| // Decode | |
| d = (0..3).collect{ (e >> (24 - (it * 8))) & 0xFF }.join(".") | |
| assert d == ip |
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