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Fix the way of looking for native libraries #1960

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Merged
merged 1 commit into from
Mar 15, 2023
Merged

Fix the way of looking for native libraries #1960

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16 changes: 9 additions & 7 deletions utbot-framework/src/main/kotlin/org/utbot/engine/z3/Z3initializer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@ import com.microsoft.z3.Context
import com.microsoft.z3.Global
import org.utbot.common.FileUtil
import java.io.File
import java.nio.file.Files.createTempDirectory

abstract class Z3Initializer : AutoCloseable {
protected val context: Context by lazy {
Expand All @@ -27,27 +26,30 @@ abstract class Z3Initializer : AutoCloseable {
val arch = System.getProperty("os.arch")
require(arch in supportedArchs) { "Not supported arch: $arch" }

val osProperty = System.getProperty("os.name").toLowerCase()
val osProperty = System.getProperty("os.name").lowercase()
val (ext, allLibraries) = when {
osProperty.startsWith("windows") -> ".dll" to vcWinLibrariesToLoadBefore + libraries
osProperty.startsWith("linux") -> ".so" to libraries
osProperty.startsWith("mac") -> ".dylib" to libraries
else -> error("Unknown OS: $osProperty")
}
val libZ3DllUrl = Z3Initializer::class.java

val dist = if (arch == "aarch64") "arm" else "x64"

val libZ3FilesUrl = Z3Initializer::class.java
.classLoader
.getResource("lib/x64/libz3.dll") ?: error("Can't find native library folder")
.getResource("lib/$dist/libz3$ext") ?: error("Can't find native library folder")
// can't take resource of parent folder right here because in obfuscated jar parent folder
// can be missed (e.g., in case if obfuscation was applied)

val libFolder: String?
if (libZ3DllUrl.toURI().scheme == "jar") {
if (libZ3FilesUrl.toURI().scheme == "jar") {
val tempDir = FileUtil.createTempDirectory("libs-").toFile()

allLibraries.forEach { name ->
Z3Initializer::class.java
.classLoader
.getResourceAsStream("lib/x64/$name$ext")
.getResourceAsStream("lib/$dist/$name$ext")
?.use { input ->
File(tempDir, "$name$ext")
.outputStream()
Expand All @@ -57,7 +59,7 @@ abstract class Z3Initializer : AutoCloseable {

libFolder = "$tempDir"
} else {
libFolder = File(libZ3DllUrl.file).parent
libFolder = File(libZ3FilesUrl.file).parent
}

allLibraries.forEach { System.load("$libFolder/$it$ext") }
Expand Down