Class UTF8Writer
- java.lang.Object
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- java.io.Writer
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- com.fasterxml.jackson.dataformat.csv.impl.UTF8Writer
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- All Implemented Interfaces:
java.io.Closeable
,java.io.Flushable
,java.lang.Appendable
,java.lang.AutoCloseable
public final class UTF8Writer extends java.io.Writer
Efficient UTF-8 backed writer.Note: original implementation based on writer from Jackson core package; modified slightly, copied to reduce dependency to impl details.
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Field Summary
Fields Modifier and Type Field Description private com.fasterxml.jackson.core.io.IOContext
_context
private java.io.OutputStream
_out
private byte[]
_outBuffer
private int
_outBufferEnd
private int
_outPtr
private int
_surrogate
When outputting chars from BMP, surrogate pairs need to be coalesced.private static int
SURR1_FIRST
private static int
SURR1_LAST
private static int
SURR2_FIRST
private static int
SURR2_LAST
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Constructor Summary
Constructors Constructor Description UTF8Writer(com.fasterxml.jackson.core.io.IOContext ctxt, java.io.OutputStream out)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.io.Writer
append(char c)
void
close()
private int
convertSurrogate(int secondPart)
Method called to calculate UTF code point, from a surrogate pair.void
flush()
private void
throwIllegal(int code)
void
write(char[] cbuf)
void
write(char[] cbuf, int off, int len)
void
write(int c)
void
write(java.lang.String str)
void
write(java.lang.String str, int off, int len)
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Field Detail
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SURR1_FIRST
private static final int SURR1_FIRST
- See Also:
- Constant Field Values
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SURR1_LAST
private static final int SURR1_LAST
- See Also:
- Constant Field Values
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SURR2_FIRST
private static final int SURR2_FIRST
- See Also:
- Constant Field Values
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SURR2_LAST
private static final int SURR2_LAST
- See Also:
- Constant Field Values
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_context
private final com.fasterxml.jackson.core.io.IOContext _context
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_out
private java.io.OutputStream _out
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_outBuffer
private byte[] _outBuffer
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_outBufferEnd
private final int _outBufferEnd
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_outPtr
private int _outPtr
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_surrogate
private int _surrogate
When outputting chars from BMP, surrogate pairs need to be coalesced. To do this, both pairs must be known first; and since it is possible pairs may be split, we need temporary storage for the first half
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Method Detail
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append
public java.io.Writer append(char c) throws java.io.IOException
- Specified by:
append
in interfacejava.lang.Appendable
- Overrides:
append
in classjava.io.Writer
- Throws:
java.io.IOException
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close
public void close() throws java.io.IOException
- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Specified by:
close
in classjava.io.Writer
- Throws:
java.io.IOException
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flush
public void flush() throws java.io.IOException
- Specified by:
flush
in interfacejava.io.Flushable
- Specified by:
flush
in classjava.io.Writer
- Throws:
java.io.IOException
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write
public void write(char[] cbuf) throws java.io.IOException
- Overrides:
write
in classjava.io.Writer
- Throws:
java.io.IOException
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write
public void write(char[] cbuf, int off, int len) throws java.io.IOException
- Specified by:
write
in classjava.io.Writer
- Throws:
java.io.IOException
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write
public void write(int c) throws java.io.IOException
- Overrides:
write
in classjava.io.Writer
- Throws:
java.io.IOException
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write
public void write(java.lang.String str) throws java.io.IOException
- Overrides:
write
in classjava.io.Writer
- Throws:
java.io.IOException
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write
public void write(java.lang.String str, int off, int len) throws java.io.IOException
- Overrides:
write
in classjava.io.Writer
- Throws:
java.io.IOException
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convertSurrogate
private int convertSurrogate(int secondPart) throws java.io.IOException
Method called to calculate UTF code point, from a surrogate pair.- Throws:
java.io.IOException
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throwIllegal
private void throwIllegal(int code) throws java.io.IOException
- Throws:
java.io.IOException
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