Package org.hsqldb.lib

Class InOutUtil

java.lang.Object

org.hsqldb.lib.InOutUtil

public final class InOutUtil
extends Object

Input / Output utility

Since:

1.7.2

Author:

Fred Toussi (fredt@users dot sourceforge.net), Campbell Burnet (campbell-burnet@users dot sourceforge.net)

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DEFAULT_COPY_AMOUNT
static final int	DEFAULT_COPY_BUFFER_SIZE

Method Summary

Modifier and Type	Method	Description
static long	copy(InputStream inputStream, OutputStream outputStream)
static long	copy(InputStream inputStream, OutputStream outputStream, long amount)
static long	copy(InputStream inputStream, OutputStream outputStream, long amount, int bufferSize)	the specified amount from the given input stream to the given output stream, using a buffer of the given size.
static long	copy(Reader reader, Writer writer)
static long	copy(Reader reader, Writer writer, long amount)
static long	copy(Reader reader, Writer writer, long amount, int bufferSize)	the specified amount from the given input stream to the given output stream, using a buffer of the given size.
static Serializable	deserialize(byte[] ba)	Deserializes the specified byte array to an Object instance.
static int	readLine(InputStream in, OutputStream out)	Implementation only supports unix line-end format and is suitable for processing HTTP and other network protocol communications.
static byte[]	serialize(Serializable s)	Retrieves the serialized form of the specified Object as an array of bytes.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_COPY_BUFFER_SIZE

public static final int DEFAULT_COPY_BUFFER_SIZE

See Also:

• Constant Field Values

DEFAULT_COPY_AMOUNT

public static final long DEFAULT_COPY_AMOUNT

See Also:

• Constant Field Values

Method Details

readLine

public static int readLine(InputStream in,
 OutputStream out)
                    throws IOException

Implementation only supports unix line-end format and is suitable for processing HTTP and other network protocol communications. Reads and writes a line of data. Returns the number of bytes read/written.

Throws:

IOException

serialize

public static byte[] serialize(Serializable s)
                        throws IOException

Retrieves the serialized form of the specified Object as an array of bytes.

Parameters:

s - the Object to serialize

Returns:

a static byte array representing the passed Object

Throws:

IOException

deserialize

public static Serializable deserialize(byte[] ba)
                                throws IOException,
ClassNotFoundException

Deserializes the specified byte array to an Object instance.

Parameters:

ba - the byte array to deserialize to an Object

Returns:

the Object resulting from deserializing the specified array of bytes

Throws:

IOException

ClassNotFoundException

copy

public static long copy(InputStream inputStream,
 OutputStream outputStream)
                 throws IOException

Throws:

IOException

See Also:

• copy(java.io.InputStream, java.io.OutputStream, long, int)

copy

public static long copy(InputStream inputStream,
 OutputStream outputStream,
 long amount)
                 throws IOException

Throws:

IOException

See Also:

• copy(java.io.InputStream, java.io.OutputStream, long, int)

copy

public static long copy(InputStream inputStream,
 OutputStream outputStream,
 long amount,
 int bufferSize)
                 throws IOException

the specified amount from the given input stream to the given output stream, using a buffer of the given size.

Parameters:

inputStream - from which to source bytes

outputStream - to which to sink bytes

amount - max # of bytes to transfer.

bufferSize - to use internally

Returns:

the number of bytes actually transferred.

Throws:

IOException - if any, thrown by either of the given stream objects

copy

public static long copy(Reader reader,
 Writer writer)
                 throws IOException

Throws:

IOException

See Also:

• copy(java.io.Reader, java.io.Writer, long, int)

copy

public static long copy(Reader reader,
 Writer writer,
 long amount)
                 throws IOException

Throws:

IOException

See Also:

• copy(java.io.Reader, java.io.Writer, long, int)

copy

public static long copy(Reader reader,
 Writer writer,
 long amount,
 int bufferSize)
                 throws IOException

the specified amount from the given input stream to the given output stream, using a buffer of the given size.

Parameters:

reader - from which to source characters

writer - to which to sink characters

amount - max # of characters to transfer.

bufferSize - to use internally

Returns:

the number of characters actually transferred.

Throws:

IOException - if any, thrown by either of the given stream objects