Add API that debugger renderer can rely on to avoid breaking changes

Author: koperagen

dataframe-json/build.gradle.kts

@@ -45,6 +45,10 @@ tasks.withType<KotlinCompile> {
     friendPaths.from(project(projects.core.path).projectDir)
 }
 
+tasks.withType<Javadoc> {
+    enabled = false
+}
+
 tasks.test {
     useJUnitPlatform()
 }

dataframe-json/src/main/kotlin/org/jetbrains/kotlinx/dataframe/io/JsonFacadeForDebugger.java

@@ -0,0 +1,16 @@
+package org.jetbrains.kotlinx.dataframe.io;
+
+import org.jetbrains.kotlinx.dataframe.DataFrame;
+import java.util.Collections;
+
+class JsonFacadeForDebugger {
+    /**
+     * utility for rendering dataframe as interactive table in the debugger - it needs json model
+     * Java class easier to discover in the debugger
+     * DO NOT BREAK ABI OF THIS METHOD!!
+     * Keep it for backward compatibility, create a new method if signature must change
+     */
+    static String convertToJson(DataFrame<?> df, int rowLimit, Integer nestedRowLimit) {
+        return JsonKt.toJsonWithMetadata(df, rowLimit, nestedRowLimit, false, Collections.emptyList(), false);
+    }
+}