info.unterrainer.commons.jreutils.Exceptions Maven / Gradle / Ivy
package info.unterrainer.commons.jreutils;
import java.util.function.Supplier;
import lombok.experimental.UtilityClass;
@UtilityClass
public class Exceptions {
/**
* Swallows any given Exception (checked or unchecked alike) silently.
*
* @param runnable the {@link Runnable} that could throw the exception to
* swallow
* @param throwables a List of Exception-types
*/
@SafeVarargs
public static void swallow(final Runnable runnable, final Class... throwables) {
Supplier supplier = () -> {
runnable.run();
return null;
};
swallowReturning(supplier, throwables);
}
/**
* Swallows any given Exception (checked or unchecked alike) silently.
*
* @param the return-value of the {@link Supplier}
* @param supplier the {@link Supplier} that could throw the exception to
* swallow
* @param throwables a List of Exception-types
* @return the return-value of the {@link Supplier}
*/
@SafeVarargs
public static T swallowReturning(final Supplier supplier, final Class... throwables) {
try {
return supplier.get();
} catch (Exception throwable) {
boolean swallow = false;
for (Class omit : throwables)
if (omit.isAssignableFrom(throwable.getClass())) {
swallow = true;
break;
}
if (!swallow)
throw throwable;
return null;
}
}
}