PandaLib/Core/src/main/java/fr/pandacube/lib/core/util/ThrowableUtil.java

77 lines
1.6 KiB
Java

package fr.pandacube.lib.core.util;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
public class ThrowableUtil {
public static String stacktraceToString(Throwable t) {
if (t == null) return null;
try (ByteArrayOutputStream os = new ByteArrayOutputStream()) {
try (PrintStream ps = new PrintStream(os, false, "UTF-8")) {
t.printStackTrace(ps);
ps.flush();
}
return os.toString("UTF-8");
} catch (IOException e) {
return null;
}
}
/**
* A supplier that can possibly throw a checked exception
*/
@FunctionalInterface
public interface SupplierException<T> {
public T get() throws Exception;
}
/**
* Wraps a {@link SupplierException} into a try catch.
* @param supp the {@link SupplierException} to run and get the value from.
* @return the value returned by the provided supplier.
* @throws RuntimeException if the provided {@link SupplierException} throws an exception.
*/
public static <T> T wrapEx(SupplierException<T> supp) {
try {
return supp.get();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* A runnable that can possibly throw a checked exception
*/
@FunctionalInterface
public interface RunnableException {
public void run() throws Exception;
}
/**
* Wraps a {@link RunnableException} into a try catch.
* @param run the {@link RunnableException} to run.
* @throws RuntimeException if the provided {@link RunnableException} throws an exception.
*/
public static void wrapEx(RunnableException run) {
try {
run.run();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}