Package org.elasticsearch.core.internal.io

Class Streams

java.lang.Object

org.elasticsearch.core.internal.io.Streams

public class Streams
extends Object

Simple utility methods for file and stream copying. All copy methods use a block size of 4096 bytes, and close all affected streams when done.

Mainly for use within the framework, but also useful for application code.

Method Summary

Modifier and Type	Method	Description
static long	copy(InputStream in, OutputStream out)
static long	copy(InputStream in, OutputStream out, boolean close)
static long	copy(InputStream in, OutputStream out, byte[] buffer)
static long	copy(InputStream in, OutputStream out, byte[] buffer, boolean close)	Copy the contents of the given InputStream to the given OutputStream.

Methods inherited from class java.lang.Object

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

Method Details

copy

public static long copy(InputStream in,
 OutputStream out,
 byte[] buffer,
 boolean close)
                 throws IOException

Copy the contents of the given InputStream to the given OutputStream. Optionally, closes both streams when done.

Parameters:

in - the stream to copy from

out - the stream to copy to

close - whether to close both streams after copying

buffer - buffer to use for copying

Returns:

the number of bytes copied

Throws:

IOException - in case of I/O errors

copy

public static long copy(InputStream in,
 OutputStream out,
 boolean close)
                 throws IOException

Throws:

IOException

See Also:

• copy(InputStream, OutputStream, byte[], boolean)

copy

public static long copy(InputStream in,
 OutputStream out,
 byte[] buffer)
                 throws IOException

Throws:

IOException

See Also:

• copy(InputStream, OutputStream, byte[], boolean)

copy

public static long copy(InputStream in,
 OutputStream out)
                 throws IOException

Throws:

IOException

See Also:

• copy(InputStream, OutputStream, byte[], boolean)