graalvm/GraalVmJavaScriptExecutionEngine.java

Executes JavaScript code using GraalVM Polyglot, returning output and result.

// Source: https://github.com/langchain4j/langchain4j | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
package dev.langchain4j.code.graalvm;

import static java.nio.charset.StandardCharsets.UTF_8;
import static org.graalvm.polyglot.HostAccess.UNTRUSTED;
import static org.graalvm.polyglot.SandboxPolicy.CONSTRAINED;

import dev.langchain4j.code.CodeExecutionEngine;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.HostAccess;
import org.graalvm.polyglot.SandboxPolicy;
import org.graalvm.polyglot.Value;

/**
 * {@link CodeExecutionEngine} that uses GraalVM Polyglot/Truffle to execute provided JavaScript 

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