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Monadic exception to assist in handling use of checked exceptions in Java 8+ functional programming
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package cool.arch.monadicexceptions;
/*
* @formatter:off
* cool.arch.monadicexceptions:monadic-exceptions
* %%
* Copyright (C) 2015 CoolArch
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* @formatter:on
*/
/**
*
*/
public class MonadicException extends RuntimeException {
private static final long serialVersionUID = 650942982495284918L;
private final Monad monad;
/**
* @param cause
*/
public MonadicException(Throwable cause) {
super(cause);
monad = AbstractMonad.of(cause);
}
/**
* @param throwableClass
* @return
*/
@SuppressWarnings("unchecked")
public Monad when(final Class throwableClass) {
return (Monad) monad.filter(e -> e.getClass()
.isAssignableFrom(throwableClass));
}
}
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