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java.lang.Objectjava.io.OutputStream
java.io.FilterOutputStream
org.ka2ddo.yaac.io.NonshareableBufferedDataOutputStream
public final class NonshareableBufferedDataOutputStream
This class is a merged duplicate of java.io.BufferedOutputStream and java.io.DataOutputStream, except that its methods are not synchronized, limiting its use to a single thread.
BufferedOutputStream
,
DataOutputStream
Field Summary |
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Fields inherited from class java.io.FilterOutputStream |
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out |
Constructor Summary | |
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NonshareableBufferedDataOutputStream(java.io.OutputStream out)
Creates a new buffered output stream to write data to the specified underlying output stream. |
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NonshareableBufferedDataOutputStream(java.io.OutputStream out,
byte[] buf)
Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer. |
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NonshareableBufferedDataOutputStream(java.io.OutputStream out,
byte[] buf,
long previousFileSize)
Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer. |
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NonshareableBufferedDataOutputStream(java.io.OutputStream out,
int size)
Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size. |
Method Summary | |
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void |
flush()
Flushes this buffered output stream. |
long |
getNumWritten()
Report the number of bytes written through this stream. |
void |
write(byte[] b,
int off,
int len)
Writes len bytes from the specified byte array
starting at offset off to this buffered output stream. |
void |
write(int b)
Writes the specified byte to this buffered output stream. |
void |
writeBoolean(boolean v)
Writes a boolean to the underlying output stream as
a 1-byte value. |
void |
writeByte(int v)
Writes out a byte to the underlying output stream as
a 1-byte value. |
void |
writeBytes(java.lang.String s)
Writes out the string to the underlying output stream as a sequence of bytes. |
void |
writeChar(int v)
Writes a char to the underlying output stream as a
2-byte value, high byte first. |
void |
writeChars(java.lang.String s)
Writes a string to the underlying output stream as a sequence of characters. |
void |
writeDouble(double v)
Converts the double argument to a long using the
doubleToLongBits method in class Double ,
and then writes that long value to the underlying
output stream as an 8-byte quantity, high byte first. |
void |
writeFloat(float v)
Converts the float argument to an int using the
floatToIntBits method in class Float ,
and then writes that int value to the underlying
output stream as a 4-byte quantity, high byte first. |
void |
writeInt(int v)
Writes an int to the underlying output stream as four
bytes, high byte first. |
void |
writeLong(long v)
Writes a long to the underlying output stream as eight
bytes, high byte first. |
void |
writeShort(int v)
Writes a short to the underlying output stream as two
bytes, high byte first. |
void |
writeUTF(java.lang.String str)
Writes a string to the underlying output stream using modified UTF-8 encoding in a machine-independent manner. |
Methods inherited from class java.io.FilterOutputStream |
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close, write |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.io.DataOutput |
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write |
Constructor Detail |
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public NonshareableBufferedDataOutputStream(java.io.OutputStream out)
out
- the underlying output stream.public NonshareableBufferedDataOutputStream(java.io.OutputStream out, int size)
out
- the underlying output stream.size
- the buffer size.
java.lang.IllegalArgumentException
- if size < 8.public NonshareableBufferedDataOutputStream(java.io.OutputStream out, byte[] buf)
out
- the underlying output stream.buf
- the buffer to use
java.lang.IllegalArgumentException
- if buf.length < 8.public NonshareableBufferedDataOutputStream(java.io.OutputStream out, byte[] buf, long previousFileSize)
out
- the underlying output stream.buf
- the buffer to usepreviousFileSize
- number of bytes already in the file (suitable for appending to an existing file)
java.lang.IllegalArgumentException
- if buf.length < 8.Method Detail |
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public void write(int b) throws java.io.IOException
write
in interface java.io.DataOutput
write
in class java.io.FilterOutputStream
b
- the byte to be written.
java.io.IOException
- if an I/O error occurs.public void write(byte[] b, int off, int len) throws java.io.IOException
len
bytes from the specified byte array
starting at offset off
to this buffered output stream.
Ordinarily this method stores bytes from the given array into this
stream's buffer, flushing the buffer to the underlying output stream as
needed. If the requested length is at least as large as this stream's
buffer, however, then this method will flush the buffer and write the
bytes directly to the underlying output stream. Thus redundant
BufferedOutputStream
s will not copy data unnecessarily.
write
in interface java.io.DataOutput
write
in class java.io.FilterOutputStream
b
- the data.off
- the start offset in the data.len
- the number of bytes to write.
java.io.IOException
- if an I/O error occurs.public void flush() throws java.io.IOException
flush
in interface java.io.Flushable
flush
in class java.io.FilterOutputStream
java.io.IOException
- if an I/O error occurs.public final void writeBoolean(boolean v) throws java.io.IOException
boolean
to the underlying output stream as
a 1-byte value. The value true
is written out as the
value (byte)1
; the value false
is
written out as the value (byte)0
.
writeBoolean
in interface java.io.DataOutput
v
- a boolean
value to be written.
java.io.IOException
- if an I/O error occurs.public final void writeByte(int v) throws java.io.IOException
byte
to the underlying output stream as
a 1-byte value.
writeByte
in interface java.io.DataOutput
v
- a byte
value to be written.
java.io.IOException
- if an I/O error occurs.public final void writeShort(int v) throws java.io.IOException
short
to the underlying output stream as two
bytes, high byte first.
writeShort
in interface java.io.DataOutput
v
- a short
to be written.
java.io.IOException
- if an I/O error occurs.public final void writeChar(int v) throws java.io.IOException
char
to the underlying output stream as a
2-byte value, high byte first.
writeChar
in interface java.io.DataOutput
v
- a char
value to be written.
java.io.IOException
- if an I/O error occurs.public final void writeInt(int v) throws java.io.IOException
int
to the underlying output stream as four
bytes, high byte first.
writeInt
in interface java.io.DataOutput
v
- an int
to be written.
java.io.IOException
- if an I/O error occurs.public final void writeLong(long v) throws java.io.IOException
long
to the underlying output stream as eight
bytes, high byte first.
writeLong
in interface java.io.DataOutput
v
- a long
to be written.
java.io.IOException
- if an I/O error occurs.public final void writeFloat(float v) throws java.io.IOException
int
using the
floatToIntBits
method in class Float
,
and then writes that int
value to the underlying
output stream as a 4-byte quantity, high byte first.
writeFloat
in interface java.io.DataOutput
v
- a float
value to be written.
java.io.IOException
- if an I/O error occurs.Float.floatToIntBits(float)
public final void writeDouble(double v) throws java.io.IOException
long
using the
doubleToLongBits
method in class Double
,
and then writes that long
value to the underlying
output stream as an 8-byte quantity, high byte first.
writeDouble
in interface java.io.DataOutput
v
- a double
value to be written.
java.io.IOException
- if an I/O error occurs.Double.doubleToLongBits(double)
public final void writeBytes(java.lang.String s) throws java.io.IOException
writeBytes
in interface java.io.DataOutput
s
- a string of bytes to be written.
java.io.IOException
- if an I/O error occurs.public final void writeChars(java.lang.String s) throws java.io.IOException
writeChar
method.
writeChars
in interface java.io.DataOutput
s
- a String
value to be written.
java.io.IOException
- if an I/O error occurs.writeChar(int)
public final void writeUTF(java.lang.String str) throws java.io.IOException
First, two bytes are written to the output stream as if by the
writeShort
method giving the number of bytes to
follow. This value is the number of bytes actually written out,
not the length of the string. Following the length, each character
of the string is output, in sequence, using the modified UTF-8 encoding
for the character. If no exception is thrown, the counter
written
is incremented by the total number of
bytes written to the output stream. This will be at least two
plus the length of str
, and at most two plus
thrice the length of str
.
writeUTF
in interface java.io.DataOutput
str
- a string to be written.
java.io.IOException
- if an I/O error occurs.public long getNumWritten()
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