Package com.saperion.common.io

Class ConcatenationInputStream

java.lang.Object

java.io.InputStream

com.saperion.common.io.ConcatenationInputStream

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable

public class ConcatenationInputStream
extends InputStream
implements Serializable

Concatenates several input streams to another input stream so that if one reads the resulting stream it is the same as reading the streams one after another. A ConcatenationInputStream is serializable if and only if all the streams concatenated are serializable.

Author:

jschwarz

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ConcatenationInputStream(List<? extends InputStream> streams)	Creates a new ConcatenationInputStream that concatenates the given streams

Method Summary

Modifier and Type	Method	Description
void	close()
static InputStream	create(InputStream... streams)	Creates a new InputStream that concatenates the given streams.
static InputStream	create(List<? extends InputStream> streams)	Creates a new InputStream that concatenates the given streams.
int	read()
int	read(byte[] b, int off, int len)
long	skip(long n)

Methods inherited from class java.io.InputStream

available, mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

ConcatenationInputStream

public ConcatenationInputStream(List<? extends InputStream> streams)

Creates a new ConcatenationInputStream that concatenates the given streams

Parameters:

streams - the streams to concatenate

Method Details

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b,
 int off,
 int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

create

public static InputStream create(InputStream... streams)

Creates a new InputStream that concatenates the given streams.

If streams is null or does not contain any elements an EmptyInputStream is created. If streams contains one and only one element this element is returned. Otherwise a ConcatenationInputStream is returned.

Parameters:

streams - the streams to concatenate

Returns:

a new InputStream that concatenates the given streams

create

public static InputStream create(List<? extends InputStream> streams)

Creates a new InputStream that concatenates the given streams.

If streams is null or does not contain any elements an EmptyInputStream is created. If streams contains one and only one element this element is returned. Otherwise a ConcatenationInputStream is returned.

Parameters:

streams - the streams to concatenate

Returns:

a new InputStream that concatenates the given streams