com.partnersoft.io
Class IOLib

java.lang.Object
  com.partnersoft.io.IOLib

public class IOLib
extends java.lang.Object

General-purpose I/O routines.

Author:

Paul Reavis Copyright 2003 Partner Software, Inc.

Field Summary

static int

BUFFER_SIZE

Constructor Summary

IOLib()

Method Summary

static long	checksum(byte[] victim) Generates a checksum for the given byte array.
static long	dataCopy(java.io.DataInput source, java.io.DataOutput sink, int howMany) Binary copies up to the given number of bytes from a DataInput object to an DataOutput object.
static long	dataToStream(java.io.DataInput source, java.io.OutputStream sink, int howMany)
static long	dataToStream(java.io.DataInput source, java.io.OutputStream sink, int howMany, java.security.MessageDigest digest) Binary copies up to the given number of bytes from a DataInput object to an output stream.
static long	streamCopy(java.io.InputStream source, java.io.OutputStream sink) Binary copies bytes from an input stream to an output stream.
static long	streamCopy(java.io.InputStream source, java.io.OutputStream sink, ActivityProgress progress, int progressLevel)
static long	streamCopy(java.io.InputStream source, java.io.OutputStream sink, int howMany) Binary copies up to the given number of bytes from an input stream to an output stream.
static long	streamCopy(java.io.InputStream source, java.io.OutputStream sink, int howMany, java.security.MessageDigest digest) Binary copies up to the given number of bytes from an input stream to an output stream.
static long	streamCopyWithChecksum(java.io.InputStream source, java.io.OutputStream sink, int howMany) Binary copies up to the given number of bytes from an input stream to an output stream.
static long	textCopy(java.io.Reader source, java.io.Writer sink) Copies text from a read to a writer.
static long	textCopy(java.io.Reader source, java.io.Writer sink, ActivityProgress progress, int progressLevel)
static long	textCopy(java.io.Reader source, java.io.Writer sink, int howMany) Binary copies up to the given number of bytes from an input stream to an output stream.

Methods inherited from class java.lang.Object

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

Field Detail

BUFFER_SIZE

public static final int BUFFER_SIZE

See Also:

Constant Field Values

Constructor Detail

IOLib

public IOLib()

Method Detail

streamCopy

public static long streamCopy(java.io.InputStream source,
                              java.io.OutputStream sink)
                       throws java.io.IOException

Binary copies bytes from an input stream to an output stream. The process is buffered, so you shouldn't need BufferedInput/OutputStreams. Flushes when it's finished, but does not close either stream. Returns the number of bytes copied.

Throws:

java.io.IOException

streamCopy

public static long streamCopy(java.io.InputStream source,
                              java.io.OutputStream sink,
                              ActivityProgress progress,
                              int progressLevel)
                       throws java.io.IOException

Throws:

java.io.IOException

streamCopy

public static long streamCopy(java.io.InputStream source,
                              java.io.OutputStream sink,
                              int howMany)
                       throws java.io.IOException

Binary copies up to the given number of bytes from an input stream to an output stream. The process is buffered, so you shouldn't need BufferedInput/OutputStreams. Flushes when it's finished, but does not close either stream. Throws an EOFExeption if there aren't enough bytes available to transfer the requested amount. Returns the total number of bytes copied.

Throws:

java.io.IOException

streamCopy

public static long streamCopy(java.io.InputStream source,
                              java.io.OutputStream sink,
                              int howMany,
                              java.security.MessageDigest digest)
                       throws java.io.IOException

Binary copies up to the given number of bytes from an input stream to an output stream. The process is buffered, so you shouldn't need BufferedInput/OutputStreams. Flushes when it's finished, but does not close either stream. Throws an EOFExeption if there aren't enough bytes available to transfer the requested amount. Returns the total number of bytes copied.

Throws:

java.io.IOException

textCopy

public static long textCopy(java.io.Reader source,
                            java.io.Writer sink)
                     throws java.io.IOException

Copies text from a read to a writer. The process is buffered, so you shouldn't need BufferedReader/BufferedWriter. Flushes when it's finished, but does not close either stream. Returns the number of bytes copied.

Throws:

java.io.IOException

textCopy

public static long textCopy(java.io.Reader source,
                            java.io.Writer sink,
                            ActivityProgress progress,
                            int progressLevel)
                     throws java.io.IOException

Throws:

java.io.IOException

textCopy

public static long textCopy(java.io.Reader source,
                            java.io.Writer sink,
                            int howMany)
                     throws java.io.IOException

Binary copies up to the given number of bytes from an input stream to an output stream. The process is buffered, so you shouldn't need BufferedInput/Writers. Flushes when it's finished, but does not close either stream. Throws an EOFExeption if there aren't enough bytes available to transfer the requested amount. Returns the total number of bytes copied.

Throws:

java.io.IOException

dataToStream

public static long dataToStream(java.io.DataInput source,
                                java.io.OutputStream sink,
                                int howMany)
                         throws java.io.IOException

Throws:

java.io.IOException

dataToStream

public static long dataToStream(java.io.DataInput source,
                                java.io.OutputStream sink,
                                int howMany,
                                java.security.MessageDigest digest)
                         throws java.io.IOException

Binary copies up to the given number of bytes from a DataInput object to an output stream. The process is buffered, so you shouldn't need BufferedInput/OutputStreams. Flushes when it's finished, but does not close either stream. Throws an EOFExeption if there aren't enough bytes available to transfer the requested amount. Returns the total number of bytes copied.

Throws:

java.io.IOException

streamCopyWithChecksum

public static long streamCopyWithChecksum(java.io.InputStream source,
                                          java.io.OutputStream sink,
                                          int howMany)
                                   throws java.io.IOException

Binary copies up to the given number of bytes from an input stream to an output stream. The process is buffered, so you shouldn't need BufferedInput/OutputStreams. Flushes when it's finished, but does not close either stream. Throws an EOFExeption if there aren't enough bytes available to transfer the requested amount. Returns the checksum of the bytes copied.

Throws:

java.io.IOException

dataCopy

public static long dataCopy(java.io.DataInput source,
                            java.io.DataOutput sink,
                            int howMany)
                     throws java.io.IOException

Binary copies up to the given number of bytes from a DataInput object to an DataOutput object. The process is buffered. Since DataOutput doesn't support closing or flushing, it does neither. Returns the total number of bytes copied.

Throws:

java.io.IOException

checksum

public static long checksum(byte[] victim)
                     throws java.io.IOException

Generates a checksum for the given byte array.

Throws:

java.io.IOException