com.codurance.lightaccess.executables.Throwables Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of light-access Show documentation

Non-intrusive JDBC library supporting lambdas

The newest version!

package com.codurance.lightaccess.executables;

import java.util.concurrent.Callable;

public class Throwables {

    @FunctionalInterface
    public interface Command {
        void execute() throws Exception;
    }

    @FunctionalInterface
    public interface Query extends Callable {
    }

    @FunctionalInterface
    public interface ExceptionWrapper {
        E wrap(Exception e);
    }

    public static void execute(Command command) throws RuntimeException {
        execute(command, RuntimeException::new);
    }

    public static  void execute(Command command, ExceptionWrapper wrapper) throws E {
        try {
            command.execute();
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            throw wrapper.wrap(e);
        }
    }

    public static  T executeQuery(Query callable) throws RuntimeException {
        return executeQuery(callable, RuntimeException::new);
    }

    public static  T executeQuery(Callable callable, ExceptionWrapper wrapper) throws E {
        try {
            return callable.call();
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            throw wrapper.wrap(e);
        }
    }

    public static  void executeWithResource(T closeableResource, Command command) {
        try(T ignored = closeableResource) {
            command.execute();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static  R executeWithResource(T closeableResource, Query callable) {
        try(T ignored = closeableResource) {
            return callable.call();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }



}