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annotate src/name/blackcap/exifwasher/Test2.kt @ 16:304492a6b72b

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Add a Readme file.
author David Barts <n5jrn@me.com>
date Sat, 11 Apr 2020 11:24:25 -0700
parents efd9fe2d70d7
children
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1 /*
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2 * A basic test of the library: try to use it to print out the EXIF
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3 * data.
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4 */
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5 package name.blackcap.exifwasher
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6
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7 import java.io.File
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8 import java.io.FileInputStream
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9 import java.io.FileOutputStream
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10 import name.blackcap.exifwasher.exiv2.*
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11
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12 /* entry point */
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13 fun main(args: Array<String>) {
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14 /* must have a file name */
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15 if (args.size != 1) {
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16 System.err.println("expecting a file name")
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17 System.exit(1)
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18 }
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19
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20 /* copy the file; we don't want to scribble on the original */
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21 val (name, ext) = splitext(args[0])
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22 val newName = "${name}_washed${ext}"
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23 FileInputStream(args[0]).use { source ->
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24 FileOutputStream(newName).use { target ->
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25 source.copyTo(target)
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26 }
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27 }
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28
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29 /* load the whitelist and image data */
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30 val white = Whitelist.parse(PROPERTIES.getProperty("whitelist"))
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31 val image = Image(newName)
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32
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33 /* do the washing */
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34 val meta = image.metadata
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35 val keys = meta.keys
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36 val keysin = keys.size
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37 var deleted = 0
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38 keys.forEach {
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39 if (!white.contains(it)) {
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40 meta.erase(it)
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41 deleted += 1
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42 }
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43 }
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44
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45 /* save and summarize */
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46 image.store()
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47 println("${keysin} in - ${deleted} deleted = ${keysin - deleted} out")
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48 }
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49
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50 fun splitext(s: String): Pair<String, String> {
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51 val pos = s.lastIndexOf('.')
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52 if (pos == -1) {
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53 return Pair(s, "")
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54 }
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55 return Pair(s.substring(0, pos), s.substring(pos))
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56 }