Package org.apache.ws.commons.util
Class Base64.Encoder
- java.lang.Object
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- org.apache.ws.commons.util.Base64.Encoder
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- Direct Known Subclasses:
Base64.SAXEncoder
- Enclosing class:
- Base64
public abstract static class Base64.Encoder extends java.lang.Object
An encoder is an object, which is able to encode byte array in blocks of three bytes. Any such block is converted into an array of four bytes.
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Field Summary
Fields Modifier and Type Field Description private char[]
charBuffer
private int
charOffset
private int
lineChars
private int
num
private int
numBytes
private java.lang.String
sep
private int
skipChars
private int
wrapSize
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Constructor Summary
Constructors Modifier Constructor Description protected
Encoder(char[] pBuffer, int pWrapSize, java.lang.String pSep)
Creates a new instance.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description void
flush()
Writes any currently buffered data to the destination.private void
wrap()
void
write(byte[] pBuffer, int pOffset, int pLen)
Encodes the given byte array.protected abstract void
writeBuffer(char[] pChars, int pOffset, int pLen)
Called for writing the buffer contents to the target.
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Constructor Detail
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Encoder
protected Encoder(char[] pBuffer, int pWrapSize, java.lang.String pSep)
Creates a new instance.- Parameters:
pBuffer
- The encoders buffer. The encoder will write to the buffer as long as possible. If the buffer is full or the end of data is signaled, then the methodwriteBuffer(char[], int, int)
will be invoked.pWrapSize
- A nonzero value indicates, that a line wrap should be performed after the given number of characters. The value must be a multiple of 4. Zero indicates, that no line wrap should be performed.pSep
- The eol sequence being used to terminate a line in case of line wraps. May be null, in which case the default valueBase64.LINE_SEPARATOR
is being used.
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Method Detail
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writeBuffer
protected abstract void writeBuffer(char[] pChars, int pOffset, int pLen) throws java.io.IOException
Called for writing the buffer contents to the target.- Parameters:
pChars
- The buffer being written.pOffset
- Offset of first character being written.pLen
- Number of characters being written.- Throws:
java.io.IOException
- Writing to the destination failed.
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wrap
private void wrap()
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write
public void write(byte[] pBuffer, int pOffset, int pLen) throws java.io.IOException
Encodes the given byte array.- Parameters:
pBuffer
- Byte array being encoded.pOffset
- Offset of first byte being encoded.pLen
- Number of bytes being encoded.- Throws:
java.io.IOException
- Invoking thewriteBuffer(char[],int,int)
method for writing the encoded data failed.
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flush
public void flush() throws java.io.IOException
Writes any currently buffered data to the destination.- Throws:
java.io.IOException
- Invoking thewriteBuffer(char[],int,int)
method for writing the encoded data failed.
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