Add Envelope encoding to protobuf

dataforge-io/dataforge-io-proto/build.gradle.kts

@@ -7,6 +7,7 @@ description = "ProtoBuf meta IO"
 
 kscience {
     jvm()
+//    js()
     dependencies {
         api(projects.dataforgeIo)
         api("com.squareup.wire:wire-runtime:4.9.9")

dataforge-io/dataforge-io-proto/src/commonMain/kotlin/ProtoEnvelopeFormat.kt

@@ -0,0 +1,32 @@
+package pace.kscience.dataforge.io.proto
+
+import kotlinx.io.Sink
+import kotlinx.io.Source
+import kotlinx.io.readByteArray
+import okio.ByteString
+import okio.ByteString.Companion.toByteString
+import space.kscience.dataforge.io.Envelope
+import space.kscience.dataforge.io.EnvelopeFormat
+import space.kscience.dataforge.io.asBinary
+import space.kscience.dataforge.io.proto.ProtoEnvelope
+import space.kscience.dataforge.io.toByteArray
+import space.kscience.dataforge.meta.Meta
+
+
+public object ProtoEnvelopeFormat : EnvelopeFormat {
+    override fun readFrom(source: Source): Envelope {
+        val protoEnvelope = ProtoEnvelope.ADAPTER.decode(source.readByteArray())
+        return Envelope(
+            meta = protoEnvelope.meta?.let { ProtoMetaWrapper(it) } ?: Meta.EMPTY,
+            data = protoEnvelope.dataBytes.toByteArray().asBinary()
+        )
+    }
+
+    override fun writeTo(sink: Sink, obj: Envelope) {
+        val protoEnvelope = ProtoEnvelope(
+            obj.meta.toProto(),
+            obj.data?.toByteArray()?.toByteString() ?: ByteString.EMPTY
+        )
+        sink.write(ProtoEnvelope.ADAPTER.encode(protoEnvelope))
+    }
+}

dataforge-io/dataforge-io-proto/src/commonMain/kotlin/ProtoMetaFormat.kt

@@ -1,11 +1,10 @@
-package space.kscience.dataforge.io.proto
+package pace.kscience.dataforge.io.proto
 
 import kotlinx.io.Sink
 import kotlinx.io.Source
-import kotlinx.io.asInputStream
+import kotlinx.io.readByteArray
-import kotlinx.io.asOutputStream
-import org.slf4j.LoggerFactory
 import space.kscience.dataforge.io.MetaFormat
+import space.kscience.dataforge.io.proto.ProtoMeta
 import space.kscience.dataforge.meta.*
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.names.NameToken
@@ -50,8 +49,8 @@ internal fun Meta.toProto(): ProtoMeta {
             is Long -> ProtoMeta.ProtoValue(int64Value = long)
             is Float -> ProtoMeta.ProtoValue(floatValue = float)
             else -> {
-                LoggerFactory.getLogger(ProtoMeta::class.java)
+//                LoggerFactory.getLogger(ProtoMeta::class.java)
-                    .warn("Unknown number type ${value} encoded as Double")
+//                    .warn("Unknown number type ${value} encoded as Double")
                 ProtoMeta.ProtoValue(doubleValue = double)
             }
         }
@@ -67,12 +66,11 @@ internal fun Meta.toProto(): ProtoMeta {
     )
 }
 
-
 public object ProtoMetaFormat : MetaFormat {
     override fun writeMeta(sink: Sink, meta: Meta, descriptor: MetaDescriptor?) {
-        ProtoMeta.ADAPTER.encode(sink.asOutputStream(), meta.toProto())
+        sink.write(ProtoMeta.ADAPTER.encode(meta.toProto()))
     }
 
     override fun readMeta(source: Source, descriptor: MetaDescriptor?): Meta =
-        ProtoMetaWrapper(ProtoMeta.ADAPTER.decode(source.asInputStream()))
+        ProtoMetaWrapper(ProtoMeta.ADAPTER.decode(source.readByteArray()))
 }

dataforge-io/dataforge-io-proto/src/commonMain/proto/meta.proto

@@ -28,3 +28,8 @@ message ProtoMeta {
 
   map<string, ProtoMeta> items = 2;
 }
+
+message ProtoEnvelope{
+  ProtoMeta meta = 1;
+  bytes dataBytes = 2;
+}

dataforge-io/dataforge-io-proto/src/commonTest/kotlin/ProtoBufTest.kt

@@ -0,0 +1,83 @@
+package pace.kscience.dataforge.io.proto
+
+import kotlinx.io.writeString
+import space.kscience.dataforge.io.Envelope
+import space.kscience.dataforge.io.toByteArray
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.asValue
+import space.kscience.dataforge.meta.get
+import kotlin.test.Test
+import kotlin.test.assertContentEquals
+import kotlin.test.assertEquals
+
+class ProtoBufTest {
+
+    @Test
+    fun testProtoBufMetaFormat(){
+        val meta = Meta {
+            "a" put 22
+            "node" put {
+                "b" put "DDD"
+                "c" put 11.1
+                "d" put {
+                    "d1" put {
+                        "d11" put "aaa"
+                        "d12" put "bbb"
+                    }
+                    "d2" put 2
+                }
+                "array" put doubleArrayOf(1.0, 2.0, 3.0)
+                "array2d" put listOf(
+                    doubleArrayOf(1.0, 2.0, 3.0).asValue(),
+                    doubleArrayOf(1.0, 2.0, 3.0).asValue()
+                ).asValue()
+            }
+        }
+        val buffer = kotlinx.io.Buffer()
+        ProtoMetaFormat.writeTo(buffer,meta)
+        val result = ProtoMetaFormat.readFrom(buffer)
+
+//        println(result["a"]?.value)
+
+        meta.items.keys.forEach {
+            assertEquals(meta[it],result[it],"${meta[it]} != ${result[it]}")
+        }
+
+        assertEquals(meta, result)
+    }
+
+    @Test
+    fun testProtoBufEnvelopeFormat(){
+        val envelope = Envelope{
+            meta {
+                "a" put 22
+                "node" put {
+                    "b" put "DDD"
+                    "c" put 11.1
+                    "d" put {
+                        "d1" put {
+                            "d11" put "aaa"
+                            "d12" put "bbb"
+                        }
+                        "d2" put 2
+                    }
+                    "array" put doubleArrayOf(1.0, 2.0, 3.0)
+                    "array2d" put listOf(
+                        doubleArrayOf(1.0, 2.0, 3.0).asValue(),
+                        doubleArrayOf(1.0, 2.0, 3.0).asValue()
+                    ).asValue()
+                }
+            }
+            data {
+                writeString("Hello world!")
+            }
+        }
+
+        val buffer = kotlinx.io.Buffer()
+        ProtoEnvelopeFormat.writeTo(buffer,envelope)
+        val result = ProtoEnvelopeFormat.readFrom(buffer)
+
+        assertEquals(envelope.meta, result.meta)
+        assertContentEquals(envelope.data?.toByteArray(), result.data?.toByteArray())
+    }
+}

dataforge-io/dataforge-io-proto/src/jvmTest/kotlin/ProtoBufTest.kt

@@ -1,44 +0,0 @@
-package space.kscience.dataforge.io.proto
-
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.asValue
-import space.kscience.dataforge.meta.get
-import kotlin.test.Test
-import kotlin.test.assertEquals
-
-class ProtoBufTest {
-
-    @Test
-    fun testProtoBufMetaFormat(){
-        val meta = Meta {
-            "a" put 22
-            "node" put {
-                "b" put "DDD"
-                "c" put 11.1
-                "d" put {
-                    "d1" put {
-                        "d11" put "aaa"
-                        "d12" put "bbb"
-                    }
-                    "d2" put 2
-                }
-                "array" put doubleArrayOf(1.0, 2.0, 3.0)
-                "array2d" put listOf(
-                    doubleArrayOf(1.0, 2.0, 3.0).asValue(),
-                    doubleArrayOf(1.0, 2.0, 3.0).asValue()
-                ).asValue()
-            }
-        }
-        val buffer = kotlinx.io.Buffer()
-        ProtoMetaFormat.writeTo(buffer,meta)
-        val result = ProtoMetaFormat.readFrom(buffer)
-
-//        println(result["a"]?.value)
-
-        meta.items.keys.forEach {
-            assertEquals(meta[it],result[it],"${meta[it]} != ${result[it]}")
-        }
-
-        assertEquals(meta, result)
-    }
-}

dataforge-io/src/commonMain/kotlin/space/kscience/dataforge/io/Envelope.kt

@@ -2,7 +2,6 @@ package space.kscience.dataforge.io
 
 import space.kscience.dataforge.meta.Laminate
 import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
@@ -34,7 +33,9 @@ public interface Envelope {
     }
 }
 
-internal class SimpleEnvelope(override val meta: Meta, override val data: Binary?) : Envelope
+internal class SimpleEnvelope(override val meta: Meta, override val data: Binary?) : Envelope{
+    override fun toString(): String  = "Envelope(meta=$meta, data=$data)"
+}
 
 public fun Envelope(meta: Meta, data: Binary?): Envelope = SimpleEnvelope(meta, data)