- All Implemented Interfaces:
Closeable
,Flushable
,AutoCloseable
The data can be retrieved using toByteArray()
and toString()
.
Closing a ByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.
This is an alternative implementation of the java.io.ByteArrayOutputStream class. The original implementation only allocates 32 bytes at the beginning. As this class is designed for heavy duty it starts at 1024 bytes. In contrast to the original it doesn't reallocate the whole memory block but allocates additional buffers. This way no buffers need to be garbage collected and the contents don't have to be copied to the new buffer. This class is designed to behave exactly like the original. The only exception is the deprecated toString(int) method that has been ignored.
- Version:
- $Id$
- Author:
- Jeremias Maerki
-
Constructor Summary
ConstructorsConstructorDescriptionCreates a new byte array output stream.ByteArrayOutputStream
(int size) Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes. -
Method Summary
Modifier and TypeMethodDescriptionvoid
close()
Closing a ByteArrayOutputStream has no effect.void
reset()
int
size()
Gets the size.byte[]
Writes to a byte array.toString()
This as a string using the provided encoding.void
write
(byte[] b, int off, int len) void
write
(int b) Calls the write(byte[]) method.void
writeTo
(OutputStream out) Write to the given output stream.Methods inherited from class java.io.OutputStream
flush, nullOutputStream, write
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Constructor Details
-
ByteArrayOutputStream
public ByteArrayOutputStream()Creates a new byte array output stream. The buffer capacity is initially 1024 bytes, though its size increases if necessary. -
ByteArrayOutputStream
Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.- Parameters:
size
- the initial size.- Throws:
IllegalArgumentException
- if size is negative.
-
-
Method Details
-
close
Closing a ByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Overrides:
close
in classOutputStream
- Throws:
IOException
- in case an I/O error occurs
-
reset
- See Also:
-
size
Gets the size.- Returns:
- the size
-
toByteArray
Writes to a byte array.- Returns:
- this is a byte array
-
toString
-
toString
This as a string using the provided encoding.- Parameters:
enc
- the encoding to use- Returns:
- This as a string using the provided encoding
- Throws:
UnsupportedEncodingException
-
write
- Overrides:
write
in classOutputStream
- See Also:
-
write
Calls the write(byte[]) method.- Specified by:
write
in classOutputStream
- See Also:
-
writeTo
Write to the given output stream.- Parameters:
out
- the output stream to write to- Throws:
IOException
- See Also:
-