com.sk89q.worldedit.util.io

Class Closer

java.lang.Object

com.sk89q.worldedit.util.io.Closer

All Implemented Interfaces:

Closeable, AutoCloseable

public final class Closer
extends Object
implements Closeable

Method Summary

Modifier and Type	Method and Description
void	close() Closes all Closeable instances that have been added to this Closer.
static Closer	create() Creates a new Closer.
<C extends Closeable> C	register(C closeable) Registers the given closeable to be closed when this Closer is closed.
RuntimeException	rethrow(Throwable e) Stores the given throwable and rethrows it.
<X extends Exception> RuntimeException	rethrow(Throwable e, Class<X> declaredType) Stores the given throwable and rethrows it.
<X1 extends Exception,X2 extends Exception> RuntimeException	rethrow(Throwable e, Class<X1> declaredType1, Class<X2> declaredType2) Stores the given throwable and rethrows it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

create

public static Closer create()

Creates a new Closer.

register

public <C extends Closeable> C register(C closeable)

Registers the given closeable to be closed when this Closer is closed.

Returns:

the given closeable

rethrow

public RuntimeException rethrow(Throwable e)
                         throws IOException

Stores the given throwable and rethrows it. It will be rethrown as is if it is an IOException, RuntimeException or Error. Otherwise, it will be rethrown wrapped in a RuntimeException. Note: Be sure to declare all of the checked exception types your try block can throw when calling an overload of this method so as to avoid losing the original exception type.

This method always throws, and as such should be called as throw closer.rethrow(e); to ensure the compiler knows that it will throw.

Returns:

this method does not return; it always throws

Throws:

IOException - when the given throwable is an IOException

rethrow

public <X extends Exception> RuntimeException rethrow(Throwable e,
                                                      Class<X> declaredType)
                                               throws IOException,
                                                      X extends Exception

Stores the given throwable and rethrows it. It will be rethrown as is if it is an IOException, RuntimeException, Error or a checked exception of the given type. Otherwise, it will be rethrown wrapped in a RuntimeException. Note: Be sure to declare all of the checked exception types your try block can throw when calling an overload of this method so as to avoid losing the original exception type.

This method always throws, and as such should be called as throw closer.rethrow(e, ...); to ensure the compiler knows that it will throw.

Returns:

this method does not return; it always throws

Throws:

IOException - when the given throwable is an IOException

X - when the given throwable is of the declared type X

X extends Exception

rethrow

public <X1 extends Exception,X2 extends Exception> RuntimeException rethrow(Throwable e,
                                                                            Class<X1> declaredType1,
                                                                            Class<X2> declaredType2)
                                                                     throws IOException,
                                                                            X1 extends Exception,
                                                                            X2 extends Exception

Stores the given throwable and rethrows it. It will be rethrown as is if it is an IOException, RuntimeException, Error or a checked exception of either of the given types. Otherwise, it will be rethrown wrapped in a RuntimeException. Note: Be sure to declare all of the checked exception types your try block can throw when calling an overload of this method so as to avoid losing the original exception type.

This method always throws, and as such should be called as throw closer.rethrow(e, ...); to ensure the compiler knows that it will throw.

Returns:

this method does not return; it always throws

Throws:

IOException - when the given throwable is an IOException

X1 - when the given throwable is of the declared type X1

X2 - when the given throwable is of the declared type X2

X1 extends Exception

close

public void close()
           throws IOException

Closes all Closeable instances that have been added to this Closer. If an exception was thrown in the try block and passed to one of the exceptionThrown methods, any exceptions thrown when attempting to close a closeable will be suppressed. Otherwise, the first exception to be thrown from an attempt to close a closeable will be thrown and any additional exceptions that are thrown after that will be suppressed.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException