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ServerAgent

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Gravit 2018-09-24 18:36:20 +07:00
parent c646537b47
commit b1cddec0e4
1 changed files with 56 additions and 0 deletions
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Launcher/src/main/java/ru/gravit/launcher/server/ServerAgent.java Normal file
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package ru.gravit.launcher.server;
import ru.gravit.utils.helper.IOHelper;
import ru.gravit.utils.helper.LogHelper;
import java.io.IOException;
import java.lang.instrument.Instrumentation;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.Collections;
import java.util.jar.JarFile;
public class ServerAgent {
private static boolean isAgentStarted=false;
public static Instrumentation inst;
public static final class StarterVisitor extends SimpleFileVisitor<Path> {
private Instrumentation inst;
public StarterVisitor(Instrumentation inst) {
this.inst = inst;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
if (file.toFile().getName().endsWith(".jar")) addJVMClassPath(new JarFile(file.toFile()));
return super.visitFile(file, attrs);
}
}
public static void addJVMClassPath(String path) throws IOException {
LogHelper.debug("Load %s",path);
inst.appendToSystemClassLoaderSearch(new JarFile(path));
}
public static void addJVMClassPath(JarFile file) throws IOException {
LogHelper.debug("Load %s",file.getName());
inst.appendToSystemClassLoaderSearch(file);
}
public boolean isAgentStarted()
{
return isAgentStarted;
}
public static long getObjSize(Object obj) {
return inst.getObjectSize(obj);
}
public static void premain(String agentArgument, Instrumentation instrumentation) {
LogHelper.debug("Server Agent");
inst = instrumentation;
isAgentStarted = true;
try {
Files.walkFileTree(Paths.get("libraries"), Collections.singleton(FileVisitOption.FOLLOW_LINKS), Integer.MAX_VALUE, new StarterVisitor(inst));
} catch (IOException e) {
e.printStackTrace(System.err);
}
}
}