Package com.itextpdf.io.util
Class StreamUtil
- java.lang.Object
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- com.itextpdf.io.util.StreamUtil
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public final class StreamUtil extends java.lang.Object
This file is a helper class for internal usage only. Be aware that its API and functionality may be changed in future.
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Constructor Summary
Constructors Modifier Constructor Description private
StreamUtil()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static void
copyBytes(IRandomAccessSource source, long start, long length, java.io.OutputStream output)
Copy bytes from theRandomAccessSource
toOutputStream
.static ByteBuffer
createBufferedEscapedString(byte[] bytes)
static ByteBuffer
createBufferedHexedString(byte[] bytes)
static byte[]
createEscapedString(byte[] bytes)
Escapes abyte
array according to the PDF conventions.static byte[]
inputStreamToArray(java.io.InputStream stream)
Reads the full content of a stream and returns them in a byte arraystatic void
readFully(java.io.InputStream input, byte[] b, int off, int len)
Readslen
bytes from an input stream.static void
skip(java.io.InputStream stream, long size)
This method is an alternative for theInputStream.skip()
-method that doesn't seem to work properly for big values ofsize
.static void
transferBytes(RandomAccessFileOrArray input, java.io.OutputStream output)
static void
transferBytes(java.io.InputStream input, java.io.OutputStream output)
static void
writeEscapedString(java.io.OutputStream outputStream, byte[] bytes)
Escapes abyte
array according to the PDF conventions.static void
writeHexedString(java.io.OutputStream outputStream, byte[] bytes)
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Field Detail
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TRANSFER_SIZE
private static final int TRANSFER_SIZE
- See Also:
- Constant Field Values
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escR
private static final byte[] escR
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escN
private static final byte[] escN
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escT
private static final byte[] escT
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escB
private static final byte[] escB
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escF
private static final byte[] escF
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Method Detail
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skip
public static void skip(java.io.InputStream stream, long size) throws java.io.IOException
This method is an alternative for theInputStream.skip()
-method that doesn't seem to work properly for big values ofsize
.- Parameters:
stream
- theInputStream
size
- the number of bytes to skip- Throws:
java.io.IOException
- if an I/O error occurs.
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createEscapedString
public static byte[] createEscapedString(byte[] bytes)
Escapes abyte
array according to the PDF conventions.- Parameters:
bytes
- thebyte
array to escape- Returns:
- an escaped
byte
array
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writeEscapedString
public static void writeEscapedString(java.io.OutputStream outputStream, byte[] bytes)
Escapes abyte
array according to the PDF conventions.- Parameters:
outputStream
- theOutputStream
an escapedbyte
array write to.bytes
- thebyte
array to escape.
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writeHexedString
public static void writeHexedString(java.io.OutputStream outputStream, byte[] bytes)
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createBufferedEscapedString
public static ByteBuffer createBufferedEscapedString(byte[] bytes)
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createBufferedHexedString
public static ByteBuffer createBufferedHexedString(byte[] bytes)
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transferBytes
public static void transferBytes(java.io.InputStream input, java.io.OutputStream output) throws java.io.IOException
- Throws:
java.io.IOException
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transferBytes
public static void transferBytes(RandomAccessFileOrArray input, java.io.OutputStream output) throws java.io.IOException
- Throws:
java.io.IOException
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inputStreamToArray
public static byte[] inputStreamToArray(java.io.InputStream stream) throws java.io.IOException
Reads the full content of a stream and returns them in a byte array- Parameters:
stream
- the stream to read- Returns:
- a byte array containing all of the bytes from the stream
- Throws:
java.io.IOException
- if there is a problem reading from the input stream
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copyBytes
public static void copyBytes(IRandomAccessSource source, long start, long length, java.io.OutputStream output) throws java.io.IOException
Copy bytes from theRandomAccessSource
toOutputStream
.- Parameters:
source
- theRandomAccessSource
copy from.start
- start position of source copy from.length
- length copy to.output
- theOutputStream
copy to.- Throws:
java.io.IOException
- on error.
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readFully
public static void readFully(java.io.InputStream input, byte[] b, int off, int len) throws java.io.IOException
Readslen
bytes from an input stream.- Parameters:
input
- the stream to readb
- the buffer into which the data is read.off
- an int specifying the offset into the data.len
- an int specifying the number of bytes to read.- Throws:
java.io.IOException
- if an I/O error occurs.
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