Kotlin DSL for gson

commons-gson-dsl/build.gradle.kts

@@ -0,0 +1,28 @@
+import io.gitlab.jfronny.scripts.*
+
+plugins {
+    id("commons.library")
+    kotlin("jvm")
+}
+
+dependencies {
+    implementation(project(":commons-gson"))
+}
+
+publishing {
+    publications {
+        create<MavenPublication>("maven") {
+            groupId = "io.gitlab.jfronny"
+            artifactId = "commons-gson-dsl"
+
+            from(components["java"])
+        }
+    }
+}
+
+tasks.javadoc {
+    enabled = false
+    linksOffline("https://maven.frohnmeyer-wds.de/javadoc/artifacts/io/gitlab/jfronny/commons/$version/raw", project(":"))
+    linksOffline("https://maven.frohnmeyer-wds.de/javadoc/artifacts/io/gitlab/jfronny/commons-gson/$version/raw", project(":commons-gson"))
+    //TODO link gson javadoc (harder to generate than expected)
+}

commons-gson-dsl/src/main/java/module-info.java

@@ -0,0 +1,4 @@
+module io.gitlab.jfronny.commons.gson.dsl {
+    requires io.gitlab.jfronny.commons.gson;
+    requires kotlin.stdlib;
+}

commons-gson-dsl/src/main/kotlin/io/gitlab/jfronny/commons/serialize/gson/dsl/ArrayScope.kt

@@ -0,0 +1,54 @@
+package io.gitlab.jfronny.commons.serialize.gson.dsl
+
+import io.gitlab.jfronny.gson.stream.JsonWriter
+
+class ArrayScope(val writer: JsonWriter) {
+    @JsonDsl
+    fun jObject(content: ObjectScope.() -> Unit) {
+        writer.beginObject()
+        ObjectScope(writer).content()
+        writer.endObject()
+    }
+
+    @JsonDsl
+    fun jArray(content: ArrayScope.() -> Unit) {
+        writer.beginArray()
+        content()
+        writer.endObject()
+    }
+
+    @JsonDsl
+    fun jValue(value: String) {
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(value: Boolean) {
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(value: Float) {
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(value: Double) {
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(value: Long) {
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jNull() {
+        writer.nullValue()
+    }
+
+    @JsonDsl
+    fun jComment(comment: String) {
+        writer.comment(comment)
+    }
+}

commons-gson-dsl/src/main/kotlin/io/gitlab/jfronny/commons/serialize/gson/dsl/JsonDsl.kt

@@ -0,0 +1,36 @@
+package io.gitlab.jfronny.commons.serialize.gson.dsl
+
+import io.gitlab.jfronny.gson.Gson
+import io.gitlab.jfronny.gson.stream.JsonWriter
+import java.io.OutputStream
+import java.io.Writer
+import java.nio.file.Path
+import kotlin.io.path.writer
+
+@DslMarker
+annotation class JsonDsl
+
+@JsonDsl fun Path.jObject(gson: Gson, content: ObjectScope.() -> Unit) = openJson(gson) { jObject(content) }
+@JsonDsl fun Path.jArray(gson: Gson, content: ArrayScope.() -> Unit) = openJson(gson) { jArray(content) }
+@JsonDsl fun Writer.jObject(gson: Gson, content: ObjectScope.() -> Unit) = openJson(gson) { jObject(content) }
+@JsonDsl fun Writer.jArray(gson: Gson, content: ArrayScope.() -> Unit) = openJson(gson) { jArray(content) }
+@JsonDsl fun OutputStream.jObject(gson: Gson, content: ObjectScope.() -> Unit) = openJson(gson) { jObject(content) }
+@JsonDsl fun OutputStream.jArray(gson: Gson, content: ArrayScope.() -> Unit) = openJson(gson) { jArray(content) }
+
+@JsonDsl
+fun JsonWriter.jObject(content: ObjectScope.() -> Unit) {
+    beginObject()
+    ObjectScope(this).content()
+    endObject()
+}
+
+@JsonDsl
+fun JsonWriter.jArray(content: ArrayScope.() -> Unit) {
+    beginArray()
+    ArrayScope(this).content()
+    endArray()
+}
+
+private fun Path.openJson(gson: Gson, write: JsonWriter.() -> Unit) = writer().use { it.openJson(gson, write) }
+private fun Writer.openJson(gson: Gson, write: JsonWriter.() -> Unit) = gson.newJsonWriter(this).use(write)
+private fun OutputStream.openJson(gson: Gson, write: JsonWriter.() -> Unit) = writer().use { it.openJson(gson, write) }

commons-gson-dsl/src/main/kotlin/io/gitlab/jfronny/commons/serialize/gson/dsl/ObjectScope.kt

@@ -0,0 +1,62 @@
+package io.gitlab.jfronny.commons.serialize.gson.dsl
+
+import io.gitlab.jfronny.gson.stream.JsonWriter
+
+class ObjectScope(val writer: JsonWriter) {
+    @JsonDsl
+    fun jObject(name: String, content: ObjectScope.() -> Unit) {
+        writer.name(name)
+        writer.beginObject()
+        content()
+        writer.endObject()
+    }
+
+    @JsonDsl
+    fun jArray(name: String, content: ArrayScope.() -> Unit) {
+        writer.name(name)
+        writer.beginArray()
+        ArrayScope(writer).content()
+        writer.endObject()
+    }
+
+    @JsonDsl
+    fun jValue(name: String, value: String) {
+        writer.name(name)
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(name: String, value: Boolean) {
+        writer.name(name)
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(name: String, value: Float) {
+        writer.name(name)
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(name: String, value: Double) {
+        writer.name(name)
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jValue(name: String, value: Long) {
+        writer.name(name)
+        writer.value(value)
+    }
+
+    @JsonDsl
+    fun jNull(name: String) {
+        writer.name(name)
+        writer.nullValue()
+    }
+
+    @JsonDsl
+    fun jComment(comment: String) {
+        writer.comment(comment)
+    }
+}

commons-gson/src/main/java/module-info.java

@@ -1,6 +1,6 @@
 module io.gitlab.jfronny.commons.gson {
     requires io.gitlab.jfronny.commons;
-    requires io.gitlab.jfronny.gson;
+    requires transitive io.gitlab.jfronny.gson;
     requires static org.jetbrains.annotations;
     exports io.gitlab.jfronny.commons.serialize.gson.api.v1;
 }

settings.gradle.kts

@@ -1,6 +1,7 @@
 rootProject.name = "Commons"
 
 include("commons-gson")
+include("commons-gson-dsl")
 include("commons-jlhttp")
 include("commons-manifold")
 include("commons-slf4j")