Mercurial > cgi-bin > hgweb.cgi > JpegWasher

annotate src/name/blackcap/exifwasher/exiv2/Initialize.kt @ 1:42277ce58ace

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Improve exception handling; always use absolute paths on libs.
author David Barts <n5jrn@me.com>
date Tue, 31 Mar 2020 15:38:25 -0700
parents db63d01a23c6
children efd9fe2d70d7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
1 /*
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
2 * Logic common to initializing all external (JNI) classes goes here.
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
3 */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
4 package name.blackcap.exifwasher.exiv2
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
5
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
6 import java.io.File
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
7 import java.io.FileOutputStream
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
8 import java.io.IOException
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
9 import java.util.jar.JarEntry
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
10 import java.util.jar.JarFile
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
11 import name.blackcap.exifwasher.LF_DIR
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
12 import name.blackcap.exifwasher.OS
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
13
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
14 object Initialize {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
15 private var initialized = false
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
16
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
17 public fun libraries() {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
18 /* no-op if already initialized */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
19 if (initialized) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
20 return
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
21 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
22
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
23 /* use the appropriate binary for the system we're on */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
24 val subdir = when(OS.type) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
25 OS.UNIX -> "linux"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
26 OS.MAC -> "mac"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
27 OS.WINDOWS -> "windows"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
28 OS.OTHER -> throw RuntimeException("unsupported OS!")
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
29 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
30 val ext = when(OS.type) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
31 OS.UNIX -> "so"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
32 OS.MAC -> "dylib"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
33 OS.WINDOWS -> "dll"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
34 OS.OTHER -> throw RuntimeException("unsupported OS!")
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
35 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
36
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
37 /* extract to scratch files, if needed, then load */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
38 val klass = Initialize::class.java
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
39 var myJar = JarFile(File(klass.getProtectionDomain().getCodeSource().getLocation().toURI()))
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
40 for (base in arrayOf("libexiv2", "libjni")) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
41 val eBase = "${base}.${ext}"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
42 val sPath = "name/blackcap/exifwasher/binaries/${subdir}/${eBase}"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
43 val source = myJar.getJarEntry(sPath)
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
44 if (source == null) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
45 die("${sPath} not found in jar")
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
46 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
47 val target = File(LF_DIR, eBase)
1
42277ce58ace Improve exception handling; always use absolute paths on libs.
David Barts <n5jrn@me.com>
parents: 0
diff changeset
48 val tPath = target.absolutePath
0
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
49 try {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
50 if (!target.exists() || target.lastModified() < source.getTime()) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
51 myJar.getInputStream(source).use { sfp ->
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
52 FileOutputStream(target).use { tfp ->
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
53 sfp.copyTo(tfp)
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
54 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
55 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
56 target.setExecutable(true)
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
57 target.setLastModified(source.getTime())
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
58 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
59 } catch (e: IOException) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
60 val message = e.message ?: "I/O error"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
61 die("unable to create ${tPath}: ${message}")
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
62 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
63 try {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
64 println("loading: ${tPath}") /* debug */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
65 System.load(tPath)
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
66 } catch (e: UnsatisfiedLinkError) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
67 val message = e.message ?: "unsatisfied link"
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
68 die("unable to link ${tPath}: ${message}")
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
69 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
70 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
71
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
72 initialized = true
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
73 System.err.println("libraries loaded") /* debug */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
74 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
75
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
76 private fun die(message: String) {
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
77 /* should open a dialog */
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
78 System.err.println(message)
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
79 System.exit(1)
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
80 }
db63d01a23c6 JNI calls and test case (finally!) seem to work.
David Barts <n5jrn@me.com>
parents:
diff changeset
81 }