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Simplify Kotlin Wallet api

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This commit is contained in:
Steve Myers
2021-06-24 13:49:25 -07:00
parent 110dfbd13c
commit 757113c002
15 changed files with 125 additions and 117 deletions
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5
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/Error.kt → bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/JnaError.kt
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@@ -1,6 +1,6 @@
package org.bitcoindevkit.bdk
enum class Error {
enum class JnaError {
InvalidU32Bytes,
Generic,
ScriptDoesntHaveAddressForm,
@@ -37,7 +37,8 @@ enum class Error {
Hex,
Psbt,
Electrum,
// Esplora
// Esplora
// CompactFilters
Sled,
}

3
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/JnaException.kt Normal file
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@@ -0,0 +1,3 @@
package org.bitcoindevkit.bdk
class JnaException internal constructor(val err: JnaError) : Exception()

2
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/LibBase.kt
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@@ -3,7 +3,7 @@ package org.bitcoindevkit.bdk
import com.sun.jna.Native
abstract class LibBase {
protected val libJna: LibJna
get() = Native.load("bdk_ffi", LibJna::class.java)
}

12
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/LibJna.kt
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@@ -1,6 +1,8 @@
package org.bitcoindevkit.bdk
import com.sun.jna.*
import com.sun.jna.Library
import com.sun.jna.Pointer
import com.sun.jna.PointerType
interface LibJna : Library {
@@ -35,13 +37,13 @@ interface LibJna : Library {
// void free_string_result (
// StringResult_t * string_result);
fun free_string_result(string_result: StringResult_t)
// typedef struct WalletRef WalletRef_t;
class WalletRef_t : PointerType {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
}
// void free_wallet_ref (
// WalletRef_t * wallet_ref);
fun free_wallet_ref(wallet_ref: WalletRef_t)
@@ -61,11 +63,11 @@ interface LibJna : Library {
descriptor: String,
changeDescriptor: String?
): WalletResult_t
// char * get_wallet_err (
// WalletResult_t const * wallet_result);
fun get_wallet_err(wallet_result: WalletResult_t): Pointer?
// WalletRef_t * get_wallet_ok (
// WalletResult_t const * wallet_result);
fun get_wallet_ok(wallet_result: WalletResult_t): WalletRef_t?

37
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/ResultBase.kt Normal file
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@@ -0,0 +1,37 @@
package org.bitcoindevkit.bdk
import com.sun.jna.Pointer
import com.sun.jna.PointerType
import org.slf4j.Logger
import org.slf4j.LoggerFactory
abstract class ResultBase<PT : PointerType, RT : Any> internal constructor(protected val resultT: PT) :
LibBase() {
protected open val log: Logger = LoggerFactory.getLogger(ResultBase::class.java)
protected abstract fun err(): Pointer?
protected abstract fun ok(): RT
protected abstract fun free(pointer: PT)
private fun checkErr() {
val errPointer = err()
val err = errPointer?.getString(0)
libJna.free_string(errPointer)
if (err != null) {
throw JnaException(JnaError.valueOf(err))
}
}
fun value(): RT {
checkErr()
return ok()
}
protected fun finalize() {
free(resultT)
log.debug("$resultT freed")
}
}

32
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/StringResult.kt
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@@ -1,32 +1,26 @@
package org.bitcoindevkit.bdk
import com.sun.jna.Pointer
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class StringResult internal constructor(private val stringResultT: LibJna.StringResult_t) : LibBase() {
class StringResult internal constructor(stringResultT: LibJna.StringResult_t) :
ResultBase<LibJna.StringResult_t, String>(stringResultT) {
private val log: Logger = LoggerFactory.getLogger(StringResult::class.java)
override val log: Logger = LoggerFactory.getLogger(StringResult::class.java)
fun isErr(): Boolean {
return libJna.get_string_err(stringResultT) != null
override fun err(): Pointer? {
return libJna.get_string_err(resultT)
}
fun err(): Error? {
val errPointer = libJna.get_string_err(stringResultT)
val err = errPointer?.getString(0)
libJna.free_string(errPointer)
return err?.let { Error.valueOf(it) }
}
fun ok(): String? {
val okPointer = libJna.get_string_ok(stringResultT)
val ok = okPointer?.getString(0)
override fun ok(): String {
val okPointer = libJna.get_string_ok(resultT)
val ok = okPointer!!.getString(0)
libJna.free_string(okPointer)
return ok
}
protected fun finalize() {
libJna.free_string_result(stringResultT)
log.debug("StringResult_t freed")
override fun free(pointer: LibJna.StringResult_t) {
libJna.free_string_result(resultT)
}
}

26
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/VoidResult.kt
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@@ -1,25 +1,23 @@
package org.bitcoindevkit.bdk
import com.sun.jna.Pointer
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class VoidResult internal constructor(private val voidResultT: LibJna.VoidResult_t) : LibBase() {
class VoidResult internal constructor(voidResultT: LibJna.VoidResult_t) :
ResultBase<LibJna.VoidResult_t, Unit>(voidResultT) {
private val log: Logger = LoggerFactory.getLogger(VoidResult::class.java)
override val log: Logger = LoggerFactory.getLogger(VoidResult::class.java)
fun isErr(): Boolean {
return libJna.get_void_err(voidResultT) != null
override fun err(): Pointer? {
return libJna.get_void_err(resultT)
}
fun err(): Error? {
val errPointer = libJna.get_void_err(voidResultT)
val err = errPointer?.getString(0)
libJna.free_string(errPointer)
return err?.let { Error.valueOf(it) }
override fun ok() {
// Void
}
protected fun finalize() {
libJna.free_void_result(voidResultT)
log.debug("VoidResult_t freed")
override fun free(pointer: LibJna.VoidResult_t) {
libJna.free_void_result(resultT)
}
}

35
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/Wallet.kt
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@@ -3,23 +3,30 @@ package org.bitcoindevkit.bdk
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class Wallet internal constructor(
private val walletRefT: LibJna.WalletRef_t,
class Wallet constructor(
name: String,
descriptor: String,
changeDescriptor: String?,
) : LibBase() {
private val log: Logger = LoggerFactory.getLogger(Wallet::class.java)
fun sync(): VoidResult {
return VoidResult(libJna.sync_wallet(walletRefT.pointer))
}
fun getAddress(): StringResult {
return StringResult(libJna.new_address(walletRefT.pointer))
val log: Logger = LoggerFactory.getLogger(Wallet::class.java)
private val walletResult =
WalletResult(libJna.new_wallet_result(name, descriptor, changeDescriptor))
private val walletRefT = walletResult.value()
fun sync() {
val voidResult = VoidResult(libJna.sync_wallet(walletRefT.pointer))
return voidResult.value()
}
protected fun finalize() {
fun getAddress(): String {
val stringResult = StringResult(libJna.new_address(walletRefT.pointer))
return stringResult.value()
}
protected fun finalize(pointer: LibJna.WalletResult_t) {
libJna.free_wallet_ref(walletRefT)
log.debug("WalletRef_t freed")
log.debug("$walletRefT freed")
}
}

37
bdk-kotlin/jvm/src/main/java/org/bitcoindevkit/bdk/WalletResult.kt
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@@ -1,36 +1,23 @@
package org.bitcoindevkit.bdk
import com.sun.jna.Pointer
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class WalletResult(
name: String,
descriptor: String,
changeDescriptor: String?,
) : LibBase() {
private val log: Logger = LoggerFactory.getLogger(WalletResult::class.java)
private val walletResultT = libJna.new_wallet_result(name, descriptor, changeDescriptor)
fun isErr(): Boolean {
return libJna.get_wallet_err(walletResultT) != null
class WalletResult internal constructor(walletResultT: LibJna.WalletResult_t) :
ResultBase<LibJna.WalletResult_t, LibJna.WalletRef_t>(walletResultT) {
override val log: Logger = LoggerFactory.getLogger(WalletResult::class.java)
override fun err(): Pointer? {
return libJna.get_wallet_err(resultT)
}
fun err(): Error? {
val errPointer = libJna.get_wallet_err(walletResultT)
val err = errPointer?.getString(0)
libJna.free_string(errPointer)
return err?.let { Error.valueOf(it) }
override fun ok(): LibJna.WalletRef_t {
return libJna.get_wallet_ok(resultT)!!
}
fun ok(): Wallet? {
val okWalletRef = libJna.get_wallet_ok(walletResultT)
return if (okWalletRef != null) Wallet(okWalletRef) else null
override fun free(pointer: LibJna.WalletResult_t) {
libJna.free_wallet_result(resultT)
}
protected fun finalize() {
libJna.free_wallet_result(walletResultT)
log.debug("WalletResult_t freed")
}
}

8
bdk-kotlin/jvm/src/test/java/org/bitcoindevkit/bdk/JvmLibTest.kt
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@@ -1,15 +1,9 @@
package org.bitcoindevkit.bdk
import com.sun.jna.Native
import org.junit.*
import org.junit.Assert.assertEquals
import kotlin.test.assertNotNull
import kotlin.test.assertNull
/**
* Library test, which will execute on linux host.
*
*/
class JvmLibTest : LibTest() {
}