com.mware.ge.util

Class IOUtils

java.lang.Object

com.mware.ge.util.IOUtils

public class IOUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static <T extends AutoCloseable,E extends Throwable> void	close(BiFunction<String,Throwable,E> constructor, T... closeables) Close all ofthe given closeables, and if something goes wrong, use the given constructor to create a Throwable instance with the specific cause attached.
static <T extends AutoCloseable> void	closeAll(T... closeables) Closes given array of closeables.
static long	copy(InputStream input, OutputStream output)
static long	copy(InputStream input, OutputStream output, long offset, long limit)
static byte[]	toBytes(InputStream in)
static byte[]	toBytes(InputStream in, long offset, long limit)
static String	toString(InputStream in)
static String	toString(InputStream in, long offset, long limit)

Methods inherited from class java.lang.Object

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

Method Detail

copy

public static long copy(InputStream input,
                        OutputStream output)
                 throws IOException

Throws:

IOException

copy

public static long copy(InputStream input,
                        OutputStream output,
                        long offset,
                        long limit)
                 throws IOException

Throws:

IOException

toBytes

public static byte[] toBytes(InputStream in)
                      throws IOException

Throws:

IOException

toBytes

public static byte[] toBytes(InputStream in,
                             long offset,
                             long limit)
                      throws IOException

Throws:

IOException

toString

public static String toString(InputStream in)
                       throws IOException

Throws:

IOException

toString

public static String toString(InputStream in,
                              long offset,
                              long limit)
                       throws IOException

Throws:

IOException

closeAll

@SafeVarargs
public static <T extends AutoCloseable> void closeAll(T... closeables)
                                                            throws IOException

Closes given array of closeables. If any AutoCloseable.close() call throws IOException than it will be rethrown to the caller after calling AutoCloseable.close() on other given resources. If more than one AutoCloseable.close() throw than resulting exception will have suppressed exceptions. See Throwable.addSuppressed(Throwable)

Type Parameters:

T - the type of closeable

Parameters:

closeables - the closeables to close

Throws:

IOException - if an exception was thrown by one of the close methods.

close

@SafeVarargs
public static <T extends AutoCloseable,E extends Throwable> void close(BiFunction<String,Throwable,E> constructor,
                                                                                    T... closeables)
                                                                             throws E extends Throwable

Close all ofthe given closeables, and if something goes wrong, use the given constructor to create a Throwable instance with the specific cause attached. The remaining closeables will still be closed, in that case, and if they in turn throw any exceptions then these will be attached as suppressed exceptions.

Type Parameters:

T - the type of things to close.

E - the type of the parent exception.

Parameters:

constructor - The function used to construct the parent throwable that will have the first thrown exception attached as a cause, and any remaining exceptions attached as suppressed exceptions. If this function returns null, then the exception is ignored.

closeables - all the things to close, in order.

Throws:

E - when any AutoCloseable.close() throws exception

E extends Throwable