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[WIP] Refactoring to kotlinx-io

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This commit is contained in:
Alexander Nozik 2023-07-11 23:03:52 +03:00
parent 2aba1b48dc
commit a699c36f8e
21 changed files with 275 additions and 228 deletions
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2
dataforge-io/build.gradle.kts
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@ -23,5 +23,5 @@ kscience {
}
readme{
maturity = space.kscience.gradle.Maturity.PROTOTYPE
maturity = space.kscience.gradle.Maturity.EXPERIMENTAL
}

38
dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/FrontMatterEnvelopeFormat.kt
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@ -1,7 +1,11 @@
package space.kscience.dataforge.io.yaml
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.Output
import kotlinx.io.Sink
import kotlinx.io.Source
import kotlinx.io.bytestring.ByteString
import kotlinx.io.bytestring.encodeToByteString
import kotlinx.io.readByteString
import kotlinx.io.writeString
import space.kscience.dataforge.context.Context
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.io.*
@ -19,18 +23,18 @@ public class FrontMatterEnvelopeFormat(
var offset = 0
offset += discardWithSeparator(
SEPARATOR.encodeToByteArray(),
SEPARATOR,
atMost = 1024,
)
val line = ByteArray {
offset += readWithSeparatorTo(this, "\n".encodeToByteArray())
offset += readWithSeparatorTo(this, "\n".encodeToByteString())
}.decodeToString()
val readMetaFormat = line.trim().takeIf { it.isNotBlank() }?.let { io.resolveMetaFormat(it) } ?: YamlMetaFormat
val packet = ByteArray {
offset += readWithSeparatorTo(this, SEPARATOR.encodeToByteArray())
offset += readWithSeparatorTo(this, SEPARATOR)
}
offset += discardLine()
@ -39,25 +43,25 @@ public class FrontMatterEnvelopeFormat(
Envelope(meta, binary.view(offset))
}
override fun readObject(input: Input): Envelope = readObject(input.readBinary())
override fun readObject(source: Source): Envelope = readObject(source.readBinary())
override fun writeObject(
output: Output,
sink: Sink,
obj: Envelope,
) {
val metaFormat = metaFormatFactory.build(io.context, meta)
val formatSuffix = if (metaFormat is YamlMetaFormat) "" else metaFormatFactory.shortName
output.writeRawString("$SEPARATOR${formatSuffix}\r\n")
metaFormat.run { metaFormat.writeObject(output, obj.meta) }
output.writeRawString("$SEPARATOR\r\n")
sink.writeString("$SEPARATOR${formatSuffix}\r\n")
metaFormat.run { metaFormat.writeObject(sink, obj.meta) }
sink.writeString("$SEPARATOR\r\n")
//Printing data
obj.data?.let { data ->
output.writeBinary(data)
sink.writeBinary(data)
}
}
public companion object : EnvelopeFormatFactory {
public const val SEPARATOR: String = "---"
public val SEPARATOR: ByteString = "---".encodeToByteString()
private val metaTypeRegex = "---(\\w*)\\s*".toRegex()
@ -69,8 +73,8 @@ public class FrontMatterEnvelopeFormat(
override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? = binary.read {
//read raw string to avoid UTF issues
val line = readRawString(3)
return@read if (line == "---") {
val line = readByteString(3)
return@read if (line == "---".encodeToByteString()) {
default
} else {
null
@ -82,12 +86,12 @@ public class FrontMatterEnvelopeFormat(
override fun readObject(binary: Binary): Envelope = default.readObject(binary)
override fun writeObject(
output: Output,
sink: Sink,
obj: Envelope,
): Unit = default.writeObject(output, obj)
): Unit = default.writeObject(sink, obj)
override fun readObject(input: Input): Envelope = default.readObject(input)
override fun readObject(source: Source): Envelope = default.readObject(source)
}
}

24
dataforge-io/dataforge-io-yaml/src/commonMain/kotlin/space/kscience/dataforge/io/yaml/YamlMetaFormat.kt
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@ -1,13 +1,13 @@
package space.kscience.dataforge.io.yaml
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.Output
import kotlinx.io.Sink
import kotlinx.io.Source
import kotlinx.io.readString
import kotlinx.io.writeString
import net.mamoe.yamlkt.*
import space.kscience.dataforge.context.Context
import space.kscience.dataforge.io.MetaFormat
import space.kscience.dataforge.io.MetaFormatFactory
import space.kscience.dataforge.io.readUtf8String
import space.kscience.dataforge.io.writeUtf8String
import space.kscience.dataforge.meta.*
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.meta.descriptors.get
@ -89,14 +89,14 @@ public fun YamlMap.toMeta(): Meta = YamlMeta(this)
*/
public class YamlMetaFormat(private val meta: Meta) : MetaFormat {
override fun writeMeta(output: Output, meta: Meta, descriptor: MetaDescriptor?) {
override fun writeMeta(sink: Sink, meta: Meta, descriptor: MetaDescriptor?) {
val yaml: YamlMap = meta.toYaml()
val string = Yaml.encodeToString(YamlMap.serializer(), yaml)
output.writeUtf8String(string)
sink.writeString(string)
}
override fun readMeta(input: Input, descriptor: MetaDescriptor?): Meta {
val yaml = Yaml.decodeYamlMapFromString(input.readUtf8String())
override fun readMeta(source: Source, descriptor: MetaDescriptor?): Meta {
val yaml = Yaml.decodeYamlMapFromString(source.readString())
return yaml.toMeta()
}
@ -109,10 +109,10 @@ public class YamlMetaFormat(private val meta: Meta) : MetaFormat {
private val default = YamlMetaFormat(Meta.EMPTY)
override fun writeMeta(output: Output, meta: Meta, descriptor: MetaDescriptor?): Unit =
default.writeMeta(output, meta, descriptor)
override fun writeMeta(sink: Sink, meta: Meta, descriptor: MetaDescriptor?): Unit =
default.writeMeta(sink, meta, descriptor)
override fun readMeta(input: Input, descriptor: MetaDescriptor?): Meta =
default.readMeta(input, descriptor)
override fun readMeta(source: Source, descriptor: MetaDescriptor?): Meta =
default.readMeta(source, descriptor)
}
}

31
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/Binary.kt
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@ -1,6 +1,9 @@
package space.kscience.dataforge.io
import kotlinx.io.*
import kotlinx.io.Sink
import kotlinx.io.Source
import kotlinx.io.buffered
import kotlinx.io.readByteArray
import kotlin.math.min
/**
@ -32,22 +35,6 @@ public interface Binary {
}
}
public class ByteArraySource(
public val byteArray: ByteArray,
public val offset: Int,
public val size: Int,
) : RawSource {
override fun close() {
// Do nothing
}
override fun readAtMostTo(sink: Buffer, byteCount: Long): Long {
val byteRead = min(byteCount, size.toLong())
sink.write(byteArray, offset, offset + byteRead.toInt())
return byteRead
}
}
internal class ByteArrayBinary(
internal val array: ByteArray,
internal val start: Int = 0,
@ -58,17 +45,11 @@ internal class ByteArrayBinary(
require(offset >= 0) { "Offset must be positive" }
require(offset < array.size) { "Offset $offset is larger than array size" }
val input = ByteArraySource(
return ByteArraySource(
array,
offset + start,
min(atMost, size - offset)
).buffered()
return try {
block(input)
} finally {
input.close()
}
).buffered().use(block)
}
override suspend fun <R> readSuspend(offset: Int, atMost: Int, block: suspend Source.() -> R): R {

2
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/EnvelopeParts.kt
View File

@ -23,7 +23,7 @@ private class PartDescriptor : Scheme() {
val PARTS_KEY = MULTIPART_KEY + "parts"
val SEPARATOR_KEY = MULTIPART_KEY + "separator"
val DEFAULT_MULTIPART_DATA_SEPARATOR = "\r\n#~PART~#\r\n".toACIIByteString()
val DEFAULT_MULTIPART_DATA_SEPARATOR = "\r\n#~PART~#\r\n".toAsciiByteString()
const val MULTIPART_DATA_TYPE = "envelope.multipart"
}

14
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/IOFormat.kt
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@ -23,7 +23,7 @@ public interface IOReader<out T> {
*/
public val type: KType
public fun readObject(input: Source): T
public fun readObject(source: Source): T
public fun readObject(binary: Binary): T = binary.read { readObject(this) }
@ -34,7 +34,7 @@ public interface IOReader<out T> {
public val binary: IOReader<Binary> = object : IOReader<Binary> {
override val type: KType = typeOf<Binary>()
override fun readObject(input: Source): Binary = input.readByteArray().asBinary()
override fun readObject(source: Source): Binary = source.readByteArray().asBinary()
override fun readObject(binary: Binary): Binary = binary
}
@ -44,11 +44,11 @@ public interface IOReader<out T> {
public inline fun <reified T> IOReader(crossinline read: Source.() -> T): IOReader<T> = object : IOReader<T> {
override val type: KType = typeOf<T>()
override fun readObject(input: Source): T = input.read()
override fun readObject(source: Source): T = source.read()
}
public fun interface IOWriter<in T> {
public fun writeObject(output: Sink, obj: T)
public fun writeObject(sink: Sink, obj: T)
}
/**
@ -96,9 +96,9 @@ public object DoubleIOFormat : IOFormat<Double>, IOFormatFactory<Double> {
override val type: KType get() = typeOf<Double>()
override fun writeObject(output: Sink, obj: Double) {
output.writeLong(obj.toBits())
override fun writeObject(sink: Sink, obj: Double) {
sink.writeLong(obj.toBits())
}
override fun readObject(input: Source): Double = Double.fromBits(input.readLong())
override fun readObject(source: Source): Double = Double.fromBits(source.readLong())
}

24
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/JsonMetaFormat.kt
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@ -1,10 +1,10 @@
@file:Suppress("UNUSED_PARAMETER")
package space.kscience.dataforge.io
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.Output
import kotlinx.io.Sink
import kotlinx.io.Source
import kotlinx.io.readString
import kotlinx.io.writeString
import kotlinx.serialization.json.Json
import kotlinx.serialization.json.JsonObject
import space.kscience.dataforge.context.Context
@ -18,13 +18,13 @@ import space.kscience.dataforge.meta.toMeta
*/
public class JsonMetaFormat(private val json: Json = DEFAULT_JSON) : MetaFormat {
override fun writeMeta(output: Output, meta: Meta, descriptor: MetaDescriptor?) {
override fun writeMeta(sink: Sink, meta: Meta, descriptor: MetaDescriptor?) {
val jsonObject = meta.toJson(descriptor)
output.writeUtf8String(json.encodeToString(JsonObject.serializer(), jsonObject))
sink.writeString(json.encodeToString(JsonObject.serializer(), jsonObject))
}
override fun readMeta(input: Input, descriptor: MetaDescriptor?): Meta {
val str = input.readUtf8String()//readByteArray().decodeToString()
override fun readMeta(source: Source, descriptor: MetaDescriptor?): Meta {
val str = source.readString()
val jsonElement = json.parseToJsonElement(str)
return jsonElement.toMeta(descriptor)
}
@ -39,10 +39,10 @@ public class JsonMetaFormat(private val json: Json = DEFAULT_JSON) : MetaFormat
private val default = JsonMetaFormat()
override fun writeMeta(output: Output, meta: Meta, descriptor: MetaDescriptor?): Unit =
default.run { writeMeta(output, meta, descriptor) }
override fun writeMeta(sink: Sink, meta: Meta, descriptor: MetaDescriptor?): Unit =
default.run { writeMeta(sink, meta, descriptor) }
override fun readMeta(input: Input, descriptor: MetaDescriptor?): Meta =
default.run { readMeta(input, descriptor) }
override fun readMeta(source: Source, descriptor: MetaDescriptor?): Meta =
default.run { readMeta(source, descriptor) }
}
}

22
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/MetaFormat.kt
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@ -1,9 +1,9 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.ByteReadPacket
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.Output
import io.ktor.utils.io.core.use
import kotlinx.io.Sink
import kotlinx.io.Source
import kotlinx.io.buffered
import space.kscience.dataforge.context.Context
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.io.MetaFormatFactory.Companion.META_FORMAT_TYPE
@ -23,19 +23,19 @@ public interface MetaFormat : IOFormat<Meta> {
override val type: KType get() = typeOf<Meta>()
override fun writeObject(output: Output, obj: Meta) {
writeMeta(output, obj, null)
override fun writeObject(sink: Sink, obj: Meta) {
writeMeta(sink, obj, null)
}
override fun readObject(input: Input): Meta = readMeta(input)
override fun readObject(source: Source): Meta = readMeta(source)
public fun writeMeta(
output: Output,
sink: Sink,
meta: Meta,
descriptor: MetaDescriptor? = null,
)
public fun readMeta(input: Input, descriptor: MetaDescriptor? = null): Meta
public fun readMeta(source: Source, descriptor: MetaDescriptor? = null): Meta
}
@Type(META_FORMAT_TYPE)
@ -63,9 +63,7 @@ public fun Meta.toString(format: MetaFormat): String = ByteArray {
public fun Meta.toString(formatFactory: MetaFormatFactory): String = toString(formatFactory.build(Global, Meta.EMPTY))
public fun MetaFormat.parse(str: String): Meta {
return ByteReadPacket(str.encodeToByteArray()).use { readObject(it) }
}
public fun MetaFormat.parse(str: String): Meta = readObject(StringSource(str).buffered())
public fun MetaFormatFactory.parse(str: String, formatMeta: Meta): Meta = build(Global, formatMeta).parse(str)

79
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaggedEnvelopeFormat.kt
View File

@ -1,6 +1,7 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.*
import kotlinx.io.*
import kotlinx.io.bytestring.decodeToString
import space.kscience.dataforge.context.Context
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.meta.Meta
@ -18,7 +19,7 @@ import space.kscience.dataforge.names.plus
public class TaggedEnvelopeFormat(
public val io: IOPlugin,
public val version: VERSION = VERSION.DF02,
public val metaFormatFactory: MetaFormatFactory = JsonMetaFormat
public val metaFormatFactory: MetaFormatFactory = JsonMetaFormat,
) : EnvelopeFormat {
// private val metaFormat = io.metaFormat(metaFormatKey)
@ -26,59 +27,60 @@ public class TaggedEnvelopeFormat(
private fun Tag.toBinary() = Binary {
writeRawString(START_SEQUENCE)
writeRawString(version.name)
write(START_SEQUENCE)
writeString(version.name)
writeShort(metaFormatKey)
writeUInt(metaSize)
when (version) {
VERSION.DF02 -> {
writeUInt(dataSize.toUInt())
}
VERSION.DF03 -> {
writeULong(dataSize)
}
}
writeRawString(END_SEQUENCE)
write(END_SEQUENCE)
}
override fun writeObject(
output: Output,
sink: Sink,
obj: Envelope,
) {
val metaFormat = metaFormatFactory.build(io.context, Meta.EMPTY)
val metaBytes = Binary(obj.meta,metaFormat)
val metaBytes = Binary(obj.meta, metaFormat)
val actualSize: ULong = (obj.data?.size ?: 0).toULong()
val tag = Tag(metaFormatFactory.key, metaBytes.size.toUInt() + 2u, actualSize)
output.writeBinary(tag.toBinary())
output.writeBinary(metaBytes)
output.writeRawString("\r\n")
sink.writeBinary(tag.toBinary())
sink.writeBinary(metaBytes)
sink.writeString("\r\n")
obj.data?.let {
output.writeBinary(it)
sink.writeBinary(it)
}
}
/**
* Read an envelope from input into memory
*
* @param input an input to read from
* @param source an input to read from
* @param formats a collection of meta formats to resolve
*/
override fun readObject(input: Input): Envelope {
val tag = input.readTag(this.version)
override fun readObject(source: Source): Envelope {
val tag = source.readTag(this.version)
val metaFormat = io.resolveMetaFormat(tag.metaFormatKey)
?: error("Meta format with key ${tag.metaFormatKey} not found")
val metaBinary = input.readBinary(tag.metaSize.toInt())
val metaBinary = source.readBinary(tag.metaSize.toInt())
val meta: Meta = metaFormat.readObjectFrom(metaBinary)
val data = input.readBinary(tag.dataSize.toInt())
val data = source.readBinary(tag.dataSize.toInt())
return SimpleEnvelope(meta, data)
}
override fun readObject(binary: Binary): Envelope = binary.read{
override fun readObject(binary: Binary): Envelope = binary.read {
val tag = readTag(version)
val metaFormat = io.resolveMetaFormat(tag.metaFormatKey)
@ -104,8 +106,8 @@ public class TaggedEnvelopeFormat(
}
public companion object : EnvelopeFormatFactory {
private const val START_SEQUENCE = "#~"
private const val END_SEQUENCE = "~#\r\n"
private val START_SEQUENCE = "#~".toAsciiByteString()
private val END_SEQUENCE = "~#\r\n".toAsciiByteString()
override val name: Name = EnvelopeFormatFactory.ENVELOPE_FACTORY_NAME + "tagged"
@ -121,35 +123,33 @@ public class TaggedEnvelopeFormat(
return TaggedEnvelopeFormat(io, version)
}
private fun Input.readTag(version: VERSION): Tag {
val start = readRawString(2)
private fun Source.readTag(version: VERSION): Tag {
val start = readByteString(2)
if (start != START_SEQUENCE) error("The input is not an envelope")
val versionString = readRawString(4)
if (version.name != versionString) error("Wrong version of DataForge: expected $version but found $versionString")
val versionString = readByteString(4)
if (version.name.toAsciiByteString() != versionString) error("Wrong version of DataForge: expected $version but found $versionString")
val metaFormatKey = readShort()
val metaLength = readUInt()
val dataLength: ULong = when (version) {
VERSION.DF02 -> readUInt().toULong()
VERSION.DF03 -> readULong()
}
val end = readRawString(4)
val end = readByteString(4)
if (end != END_SEQUENCE) error("The input is not an envelope")
return Tag(metaFormatKey, metaLength, dataLength)
}
override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? {
return try {
binary.read {
val header = readRawString(6)
return@read when (header.substring(2..5)) {
VERSION.DF02.name -> TaggedEnvelopeFormat(io, VERSION.DF02)
VERSION.DF03.name -> TaggedEnvelopeFormat(io, VERSION.DF03)
else -> null
}
override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? = try {
binary.read {
val header = readByteString(6)
when (header.substring(2, 6).decodeToString()) {
VERSION.DF02.name -> TaggedEnvelopeFormat(io, VERSION.DF02)
VERSION.DF03.name -> TaggedEnvelopeFormat(io, VERSION.DF03)
else -> null
}
} catch (ex: Exception) {
null
}
} catch (ex: Exception) {
null
}
private val default by lazy { build(Global, Meta.EMPTY) }
@ -158,16 +158,13 @@ public class TaggedEnvelopeFormat(
default.run { readObject(binary) }
override fun writeObject(
output: Output,
sink: Sink,
obj: Envelope,
): Unit = default.run {
writeObject(
output,
obj,
)
writeObject(sink, obj)
}
override fun readObject(input: Input): Envelope = default.readObject(input)
override fun readObject(source: Source): Envelope = default.readObject(source)
}
}

56
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/TaglessEnvelopeFormat.kt
View File

@ -1,9 +1,9 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.ByteReadPacket
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.Output
import io.ktor.utils.io.core.readUTF8UntilDelimiterTo
import kotlinx.io.*
import kotlinx.io.bytestring.ByteString
import kotlinx.io.bytestring.encodeToByteString
import space.kscience.dataforge.context.Context
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.meta.Meta
@ -29,34 +29,35 @@ public class TaglessEnvelopeFormat(
// }
override fun writeObject(
output: Output,
sink: Sink,
obj: Envelope,
) {
val metaFormat = metaFormatFactory.build(this.io.context, meta)
//printing header
output.writeRawString(TAGLESS_ENVELOPE_HEADER + "\r\n")
sink.write(TAGLESS_ENVELOPE_HEADER)
sink.writeString("\r\n")
//Printing meta
if (!obj.meta.isEmpty()) {
val metaBinary = Binary(obj.meta, metaFormat)
output.writeUtf8String(META_START + "-${metaFormatFactory.shortName}\r\n")
output.writeBinary(metaBinary)
output.writeRawString("\r\n")
sink.writeString(META_START + "-${metaFormatFactory.shortName}\r\n")
sink.writeBinary(metaBinary)
sink.writeString("\r\n")
}
//Printing data
obj.data?.let { data ->
//val actualSize: Int = envelope.data?.size ?: 0
output.writeUtf8String(DATA_START + "\r\n")
output.writeBinary(data)
sink.writeString(DATA_START + "\r\n")
sink.writeBinary(data)
}
}
override fun readObject(input: Input): Envelope {
override fun readObject(source: Source): Envelope {
//read preamble
input.discardWithSeparator(
TAGLESS_ENVELOPE_HEADER.encodeToByteArray(),
source.discardWithSeparator(
TAGLESS_ENVELOPE_HEADER,
atMost = 1024,
)
@ -64,22 +65,22 @@ public class TaglessEnvelopeFormat(
var data: Binary? = null
input.discardWithSeparator(
source.discardWithSeparator(
SEPARATOR_PREFIX,
atMost = 1024,
)
var header: String = ByteArray {
input.readUTF8UntilDelimiterTo(this, "\n")
source.readWithSeparatorTo(this, "\n".encodeToByteString())
}.decodeToString()
while (!input.endOfInput) {
while (!source.exhausted()) {
val block = ByteArray {
input.readWithSeparatorTo(this, SEPARATOR_PREFIX)
source.readWithSeparatorTo(this, SEPARATOR_PREFIX)
}
val nextHeader = ByteArray {
input.readWithSeparatorTo(this, "\n".encodeToByteArray())
source.readWithSeparatorTo(this, "\n".encodeToByteString())
}.decodeToString()
//terminate on end
@ -89,7 +90,7 @@ public class TaglessEnvelopeFormat(
if (header.startsWith("META")) {
//TODO check format
val metaFormat: MetaFormatFactory = JsonMetaFormat
meta = metaFormat.readMeta(ByteReadPacket(block))
meta = metaFormat.readMeta(ByteArraySource(block).buffered())
}
if (header.startsWith("DATA")) {
@ -111,9 +112,9 @@ public class TaglessEnvelopeFormat(
public const val TAGLESS_ENVELOPE_TYPE: String = "tagless"
public val SEPARATOR_PREFIX: ByteArray = "\n#~".encodeToByteArray()
public val SEPARATOR_PREFIX: ByteString = "\n#~".encodeToByteString()
public const val TAGLESS_ENVELOPE_HEADER: String = "#~DFTL"
public val TAGLESS_ENVELOPE_HEADER: ByteString = "#~DFTL".encodeToByteString()
// public const val META_START_PROPERTY: String = "metaSeparator"
public const val META_START: String = "#~META"
@ -134,21 +135,18 @@ public class TaglessEnvelopeFormat(
override fun readObject(binary: Binary): Envelope = default.run { readObject(binary) }
override fun writeObject(
output: Output,
sink: Sink,
obj: Envelope,
): Unit = default.run {
writeObject(
output,
obj,
)
writeObject(sink, obj)
}
override fun readObject(input: Input): Envelope = default.readObject(input)
override fun readObject(source: Source): Envelope = default.readObject(source)
override fun peekFormat(io: IOPlugin, binary: Binary): EnvelopeFormat? {
return try {
binary.read {
val string = readRawString(TAGLESS_ENVELOPE_HEADER.length)
val string = readByteString(TAGLESS_ENVELOPE_HEADER.size)
return@read if (string == TAGLESS_ENVELOPE_HEADER) {
TaglessEnvelopeFormat(io)
} else {

115
dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/ioMisc.kt
View File

@ -2,14 +2,17 @@ package space.kscience.dataforge.io
import kotlinx.io.*
import kotlinx.io.bytestring.ByteString
import kotlinx.io.bytestring.decodeToString
import kotlinx.io.bytestring.encodeToByteString
import space.kscience.dataforge.meta.Meta
import space.kscience.dataforge.misc.DFExperimental
import kotlin.math.min
/**
* Convert a string literal, containing only ASCII characters to a [ByteString].
* Throws an error if there are non-ASCII characters.
*/
public fun String.toACIIByteString(): ByteString {
public fun String.toAsciiByteString(): ByteString {
val bytes = ByteArray(length) {
val char = get(it)
val code = char.code
@ -94,24 +97,30 @@ private class RingByteArray(
else -> inputArray.indices.all { inputArray[it] == get(it) }
}
fun contentEquals(byteString: ByteString): Boolean = when {
byteString.size != buffer.size -> false
size < buffer.size -> false
else -> (0 until byteString.size).all { byteString[it] == get(it) }
}
}
private fun RingByteArray.toArray(): ByteArray = ByteArray(size) { get(it) }
/**
* Read [Input] into [output] until designated multibyte [separator] and optionally continues until
* Read [Source] into [output] until designated multibyte [separator] and optionally continues until
* the end of the line after it. Throw error if [separator] not found and [atMost] bytes are read.
* Also fails if [separator] not found until the end of input.
*
* Separator itself is not read into Output.
* The Separator itself is not read into [Sink].
*
* @param errorOnEof if true error is thrown if separator is never encountered
*
* @return bytes actually being read, including separator
*/
public fun Source.readWithSeparatorTo(
output: Sink,
separator: ByteArray,
output: Sink?,
separator: ByteString,
atMost: Int = Int.MAX_VALUE,
errorOnEof: Boolean = false,
): Int {
@ -126,7 +135,7 @@ public fun Source.readWithSeparatorTo(
if (rb.contentEquals(separator)) {
return counter
} else if (rb.isFull()) {
output.writeByte(rb[0])
output?.writeByte(rb[0])
}
}
@ -134,33 +143,93 @@ public fun Source.readWithSeparatorTo(
error("Read to the end of input without encountering ${separator.decodeToString()}")
} else {
for (i in 1 until rb.size) {
output.writeByte(rb[i])
output?.writeByte(rb[i])
}
counter += (rb.size - 1)
return counter
}
}
public fun Source.discardLine(): Int {
return discardUntilDelimiter('\n'.code.toByte()).also {
discard(1)
}.toInt() + 1
}
/**
* Discard all bytes until [separator] is encountered. Separator is discarded sa well.
* Return the total number of bytes read.
*/
public fun Source.discardWithSeparator(
separator: ByteArray,
separator: ByteString,
atMost: Int = Int.MAX_VALUE,
errorOnEof: Boolean = false,
): Int {
val dummy: Sink = object : Sink(ChunkBuffer.Pool) {
override fun closeDestination() {
// Do nothing
}
): Int = readWithSeparatorTo(null, separator, atMost, errorOnEof)
override fun flush(source: Memory, offset: Int, length: Int) {
// Do nothing
}
/**
* Discard all symbol until newline is discovered. Carriage return is not discarded.
*/
public fun Source.discardLine(
atMost: Int = Int.MAX_VALUE,
errorOnEof: Boolean = false,
): Int = discardWithSeparator("\n".encodeToByteString(), atMost, errorOnEof)
/**
* A [Source] based on [ByteArray]
*/
public class ByteArraySource(
private val byteArray: ByteArray,
private val offset: Int = 0,
private val size: Int = byteArray.size - offset,
) : RawSource {
init {
require(offset >= 0) { "Offset must be positive" }
require(offset + size <= byteArray.size) { "End index is ${offset + size}, but the array size is ${byteArray.size}" }
}
return readWithSeparatorTo(dummy, separator, atMost, errorOnEof)
private var pointer = offset
override fun close() {
// Do nothing
}
override fun readAtMostTo(sink: Buffer, byteCount: Long): Long {
if (pointer == offset + size) return -1
val byteRead = min(byteCount.toInt(), (size + offset - pointer))
sink.write(byteArray, pointer, pointer + byteRead)
pointer += byteRead
return byteRead.toLong()
}
}
/**
* A [Source] based on [String]
*/
public class StringSource(
public val string: String,
public val offset: Int = 0,
public val size: Int = string.length - offset,
) : RawSource {
private var pointer = offset
override fun close() {
// Do nothing
}
override fun readAtMostTo(sink: Buffer, byteCount: Long): Long {
if (pointer == offset + size) return -1
val byteRead = min(byteCount.toInt(), (size + offset - pointer))
sink.writeString(string, pointer, pointer + byteRead)
pointer += byteRead
return byteRead.toLong()
}
}
public fun Sink.writeDouble(value: Double) {
writeLong(value.toBits())
}
public fun Source.readDouble(): Double = Double.fromBits(readLong())
public fun Sink.writeFloat(value: Float) {
writeInt(value.toBits())
}
public fun Source.readFloat(): Float = Float.fromBits(readInt())

1
dataforge-io/src/commonTest/kotlin/space/kscience/dataforge/io/BinaryTest.kt
View File

@ -1,6 +1,5 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.readInt
import kotlin.test.Test
import kotlin.test.assertEquals

17
dataforge-io/src/commonTest/kotlin/space/kscience/dataforge/io/EnvelopeFormatTest.kt
View File

@ -1,6 +1,7 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.readBytes
import kotlinx.io.readByteArray
import kotlinx.io.writeString
import kotlin.test.Test
import kotlin.test.assertEquals
@ -12,7 +13,7 @@ class EnvelopeFormatTest {
"d" put 22.2
}
data {
writeUtf8String("12345678")
writeString("12345678")
}
}
@ -22,7 +23,7 @@ class EnvelopeFormatTest {
val res = readFromByteArray(byteArray)
assertEquals(envelope.meta, res.meta)
val bytes = res.data?.read {
readBytes()
readByteArray()
}
assertEquals("12345678", bytes?.decodeToString())
}
@ -34,13 +35,13 @@ class EnvelopeFormatTest {
val res = readFromByteArray(byteArray)
assertEquals(envelope.meta, res.meta)
val bytes = res.data?.read {
readBytes()
readByteArray()
}
assertEquals("12345678", bytes?.decodeToString())
assertEquals("12345678", bytes?.decodeToString())
}
@Test
fun testManualDftl(){
fun testManualDftl() {
val envelopeString = """
#~DFTL
#~META
@ -56,8 +57,8 @@ class EnvelopeFormatTest {
val res = TaglessEnvelopeFormat.readFromByteArray(envelopeString.encodeToByteArray())
assertEquals(envelope.meta, res.meta)
val bytes = res.data?.read {
readBytes()
readByteArray()
}
assertEquals("12345678", bytes?.decodeToString())
assertEquals("12345678", bytes?.decodeToString())
}
}

21
dataforge-io/src/commonTest/kotlin/space/kscience/dataforge/io/IOTest.kt
View File

@ -1,8 +1,9 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.ByteReadPacket
import io.ktor.utils.io.core.readBytes
import io.ktor.utils.io.core.readUTF8Line
import kotlinx.io.buffered
import kotlinx.io.bytestring.encodeToByteString
import kotlinx.io.readByteArray
import kotlinx.io.readLine
import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertFails
@ -11,9 +12,9 @@ class IOTest {
@Test
fun readBytes() {
val bytes = ByteArray(8) { it.toByte() }
val input = ByteReadPacket(bytes)
@Suppress("UNUSED_VARIABLE") val first = input.readBytes(4)
val second = input.readBytes(4)
val input = ByteArraySource(bytes).buffered()
@Suppress("UNUSED_VARIABLE") val first = input.readByteArray(4)
val second = input.readByteArray(4)
assertEquals(4.toByte(), second[0])
}
@ -31,25 +32,25 @@ class IOTest {
binary.read {
val array = ByteArray {
val read = readWithSeparatorTo(this, "---".encodeToByteArray()) + discardLine()
val read = readWithSeparatorTo(this, "---".encodeToByteString()) + discardLine()
assertEquals(12, read)
}
assertEquals("""
aaa
bbb
""".trimIndent(),array.decodeToString().trim())
assertEquals("ccc", readUTF8Line()?.trim())
assertEquals("ccc", readLine()?.trim())
}
assertFails {
binary.read {
discardWithSeparator("---".encodeToByteArray(), atMost = 3 )
discardWithSeparator("---".encodeToByteString(), atMost = 3 )
}
}
assertFails {
binary.read{
discardWithSeparator("-+-".encodeToByteArray(), errorOnEof = true)
discardWithSeparator("-+-".encodeToByteString(), errorOnEof = true)
}
}

5
dataforge-io/src/commonTest/kotlin/space/kscience/dataforge/io/MultipartTest.kt
View File

@ -1,5 +1,6 @@
package space.kscience.dataforge.io
import kotlinx.io.writeString
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.meta.get
import space.kscience.dataforge.meta.int
@ -18,9 +19,9 @@ class MultipartTest {
"value" put it
}
data {
writeUtf8String("Hello World $it")
writeString("Hello World $it")
repeat(300) {
writeRawString("$it ")
writeString("$it ")
}
}
}

5
dataforge-io/src/commonTest/kotlin/space/kscience/dataforge/io/ioTestUtils.kt
View File

@ -1,12 +1,11 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.ByteReadPacket
import io.ktor.utils.io.core.use
import kotlinx.io.buffered
fun <T : Any> IOFormat<T>.writeToByteArray(obj: T): ByteArray = ByteArray {
writeObject(this, obj)
}
fun <T : Any> IOFormat<T>.readFromByteArray(array: ByteArray): T = ByteReadPacket(array).use {
fun <T : Any> IOFormat<T>.readFromByteArray(array: ByteArray): T = ByteArraySource(array).buffered().use {
readObject(it)
}

29
dataforge-io/src/jvmMain/kotlin/space/kscience/dataforge/io/fileIO.kt
View File

@ -1,8 +1,11 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.*
import io.ktor.utils.io.streams.asOutput
import kotlinx.coroutines.runBlocking
import kotlinx.io.Sink
import kotlinx.io.Source
import kotlinx.io.asSink
import kotlinx.io.buffered
import space.kscience.dataforge.meta.Meta
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.meta.isEmpty
@ -23,18 +26,18 @@ internal class PathBinary(
override val size: Int = Files.size(path).toInt() - fileOffset,
) : Binary {
override fun <R> read(offset: Int, atMost: Int, block: Input.() -> R): R = runBlocking {
override fun <R> read(offset: Int, atMost: Int, block: Source.() -> R): R = runBlocking {
readSuspend(offset, atMost, block)
}
override suspend fun <R> readSuspend(offset: Int, atMost: Int, block: suspend Input.() -> R): R {
override suspend fun <R> readSuspend(offset: Int, atMost: Int, block: suspend Source.() -> R): R {
val actualOffset = offset + fileOffset
val actualSize = min(atMost, size - offset)
val array = path.inputStream().use {
it.skip(actualOffset.toLong())
it.readNBytes(actualSize)
}
return ByteReadPacket(array).block()
return ByteArraySource(array).buffered().use { it.block() }
}
override fun view(offset: Int, binarySize: Int) = PathBinary(path, fileOffset + offset, binarySize)
@ -42,36 +45,36 @@ internal class PathBinary(
public fun Path.asBinary(): Binary = PathBinary(this)
public fun <R> Path.read(block: Input.() -> R): R = asBinary().read(block = block)
public fun <R> Path.read(block: Source.() -> R): R = asBinary().read(block = block)
/**
* Write a live output to a newly created file. If file does not exist, throws error
*/
public fun Path.write(block: Output.() -> Unit): Unit {
public fun Path.write(block: Sink.() -> Unit): Unit {
val stream = Files.newOutputStream(this, StandardOpenOption.WRITE, StandardOpenOption.CREATE_NEW)
stream.asOutput().use(block)
stream.asSink().buffered().use(block)
}
/**
* Create a new file or append to exiting one with given output [block]
*/
public fun Path.append(block: Output.() -> Unit): Unit {
public fun Path.append(block: Sink.() -> Unit): Unit {
val stream = Files.newOutputStream(
this,
StandardOpenOption.WRITE, StandardOpenOption.APPEND, StandardOpenOption.CREATE
)
stream.asOutput().use(block)
stream.asSink().buffered().use(block)
}
/**
* Create a new file or replace existing one using given output [block]
*/
public fun Path.rewrite(block: Output.() -> Unit): Unit {
public fun Path.rewrite(block: Sink.() -> Unit): Unit {
val stream = Files.newOutputStream(
this,
StandardOpenOption.WRITE, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.CREATE
)
stream.asOutput().use(block)
stream.asSink().buffered().use(block)
}
@DFExperimental
@ -260,7 +263,7 @@ public fun IOPlugin.writeEnvelopeDirectory(
val dataFile = path.resolve(IOPlugin.DATA_FILE_NAME)
dataFile.write {
envelope.data?.read {
val copied = copyTo(this@write)
val copied = transferTo(this@write)
if (copied != envelope.data?.size?.toLong()) {
error("The number of copied bytes does not equal data size")
}

12
dataforge-io/src/jvmMain/kotlin/space/kscience/dataforge/io/resourceIO.kt
View File

@ -1,9 +1,11 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.streams.asInput
import kotlinx.io.Source
import kotlinx.io.asSource
import kotlinx.io.buffered
public fun IOPlugin.resource(name: String): Binary? = context.javaClass.getResource(name)?.readBytes()?.asBinary()
public inline fun <R> IOPlugin.readResource(name: String, block: Input.() -> R): R =
context.javaClass.getResource(name)?.openStream()?.asInput()?.block() ?: error("Can't read resource $name")
public fun IOPlugin.resource(name: String): Binary? = { }.javaClass.getResource(name)?.readBytes()?.asBinary()
public inline fun <R> IOPlugin.readResource(name: String, block: Source.() -> R): R =
{ }.javaClass.getResource(name)?.openStream()?.asSource()?.buffered()?.block() ?: error("Can't read resource $name")

1
dataforge-io/src/jvmTest/kotlin/space/kscience/dataforge/io/FileBinaryTest.kt
View File

@ -1,6 +1,5 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.writeDouble
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.misc.DFExperimental
import java.nio.file.Files

1
dataforge-io/src/jvmTest/kotlin/space/kscience/dataforge/io/FileEnvelopeTest.kt
View File

@ -1,6 +1,5 @@
package space.kscience.dataforge.io
import io.ktor.utils.io.core.writeDouble
import space.kscience.dataforge.context.Global
import space.kscience.dataforge.misc.DFExperimental
import java.nio.file.Files

4
dataforge-workspace/src/jvmMain/kotlin/space/kscience/dataforge/workspace/FileWorkspaceCache.kt
View File

@ -1,9 +1,5 @@
package space.kscience.dataforge.workspace
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.Output
import io.ktor.utils.io.core.readBytes
import io.ktor.utils.io.core.writeFully
import kotlinx.serialization.ExperimentalSerializationApi
import kotlinx.serialization.KSerializer
import kotlinx.serialization.json.Json