Java IOException Create toIOException(Throwable inThrownException, boolean inCheckCauses)

Description

to IO Exception

License

Open Source License

Declaration

public static IOException toIOException(Throwable inThrownException, boolean inCheckCauses) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.IOException;

import java.util.HashSet;

import java.util.Set;

public class Main {
    public static IOException toIOException(Throwable inThrownException, boolean inCheckCauses) {

        if (inThrownException == null) {
            return null;
        }//from   w ww .  ja v a2 s .c o  m
        if (inThrownException instanceof IOException) {
            return (IOException) inThrownException;
        }
        if (inCheckCauses) {

            final IOException ioe = findException(IOException.class, inThrownException);
            if (ioe != null) {
                return ioe;
            }
        }

        return new IOException(inThrownException);
    }

    @SuppressWarnings("unchecked")
    private static <T extends Throwable> T findException(Class<T> inThrowableClassToFind, Throwable inThrowable) {

        if (inThrowable == null || inThrowableClassToFind == null) {
            return null;
        }

        final Set<Throwable> checkedThrowables = new HashSet<>();

        while (inThrowable != null) {

            if (inThrowableClassToFind.isAssignableFrom(inThrowable.getClass())) {
                return (T) inThrowable;
            }

            if (checkedThrowables.contains(inThrowable)) {
                return null;
            }
            checkedThrowables.add(inThrowable);

            inThrowable = inThrowable.getCause();
        }

        return null;
    }
}

Related

1. toIOException(final Throwable e)
2. toIOException(String msg, Throwable cause)
3. toIoException(Throwable cause)
4. toIOException(Throwable cause)
5. toIOException(Throwable e)
6. toIOException(Throwable t)