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import java.io.File;

import java.io.IOException;

import java.nio.charset.StandardCharsets;

import java.nio.file.Files;

import org.graalvm.visualvm.lib.jfluid.heap.Heap;

import org.graalvm.visualvm.lib.jfluid.heap.HeapFactory;

import org.graalvm.visualvm.lib.profiler.oql.engine.api.OQLEngine;

public class HeapQuery {

public static void main(String... args) throws Exception {

final File file = new File(args[0]);

if (!file.exists()) {

throw new IOException("Cannot find " + file);

}

Heap heap = HeapFactory.createHeap(file);

System.setProperty("polyglot.js.nashorn-compat", "true");

final OQLEngine eng = new OQLEngine(heap);

final String script;

if (args[1].equals("-e")) {

script = args[2];

} else {

script = new String(Files.readAllBytes(new File(args[1]).toPath()), StandardCharsets.UTF_8);

}

eng.executeQuery(script, OQLEngine.ObjectVisitor.DEFAULT);

}

}