org.apache.paimon.utils

类 IOUtils

java.lang.Object

org.apache.paimon.utils.IOUtils

public final class IOUtils
extends Object

An utility class for I/O related functionality.

构造器概要

构造器

构造器和说明
IOUtils()

方法概要

限定符和类型	方法和说明
static void	closeAll(AutoCloseable... closeables)
static void	closeAll(Iterable<? extends AutoCloseable> closeables) Closes all AutoCloseable objects in the parameter, suppressing exceptions.
static <T extends Throwable> void	closeAll(Iterable<? extends AutoCloseable> closeables, Class<T> suppressedException) Closes all AutoCloseable objects in the parameter, suppressing exceptions.
static void	closeQuietly(AutoCloseable closeable) Closes the given AutoCloseable.
static void	copyBytes(InputStream in, OutputStream out) Copies from one stream to another.
static void	copyBytes(InputStream in, OutputStream out, int buffSize, boolean close) Copies from one stream to another.
static void	readFully(InputStream in, byte[] buf) Reads len bytes in a loop.
static void	readFully(InputStream in, byte[] buf, int off, int len) Reads len bytes in a loop.

从类继承的方法 java.lang.Object

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

构造器详细资料

IOUtils

public IOUtils()

方法详细资料

copyBytes

public static void copyBytes(InputStream in,
                             OutputStream out,
                             int buffSize,
                             boolean close)
                      throws IOException

Copies from one stream to another.

参数:

in - InputStream to read from

out - OutputStream to write to

buffSize - the size of the buffer

close - whether or not close the InputStream and OutputStream at the end. The streams are closed in the finally clause.

抛出:

IOException - thrown if an error occurred while writing to the output stream

copyBytes

public static void copyBytes(InputStream in,
                             OutputStream out)
                      throws IOException

Copies from one stream to another. closes the input and output streams at the end.

参数:

in - InputStream to read from

out - OutputStream to write to

抛出:

IOException - thrown if an I/O error occurs while copying

readFully

public static void readFully(InputStream in,
                             byte[] buf)
                      throws IOException

Reads len bytes in a loop.

参数:

in - The InputStream to read from

buf - The buffer to fill

抛出:

IOException - if it could not read requested number of bytes for any reason (including EOF)

readFully

public static void readFully(InputStream in,
                             byte[] buf,
                             int off,
                             int len)
                      throws IOException

Reads len bytes in a loop.

参数:

in - The InputStream to read from

buf - The buffer to fill

off - offset from the buffer

len - the length of bytes to read

抛出:

IOException - if it could not read requested number of bytes for any reason (including EOF)

closeAll

public static void closeAll(AutoCloseable... closeables)
                     throws Exception

抛出:

Exception

另请参阅:

closeAll(Iterable)

closeAll

public static void closeAll(Iterable<? extends AutoCloseable> closeables)
                     throws Exception

Closes all AutoCloseable objects in the parameter, suppressing exceptions. Exception will be emitted after calling close() on every object.

参数:

closeables - iterable with closeables to close.

抛出:

Exception - collected exceptions that occurred during closing

closeAll

public static <T extends Throwable> void closeAll(Iterable<? extends AutoCloseable> closeables,
                                                  Class<T> suppressedException)
                                           throws Exception

Closes all AutoCloseable objects in the parameter, suppressing exceptions. Exception will be emitted after calling close() on every object.

参数:

closeables - iterable with closeables to close.

suppressedException - class of exceptions which should be suppressed during the closing.

抛出:

Exception - collected exceptions that occurred during closing

closeQuietly

public static void closeQuietly(AutoCloseable closeable)

Closes the given AutoCloseable.

Important: This method is expected to never throw an exception.