se.entra.phantom.server

Class NpPrintStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

java.io.PrintStream

se.entra.phantom.server.NpPrintStream

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public class NpPrintStream
extends PrintStream

A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently. Two other features are provided as well. Unlike other output streams, a PrintStream never throws an IOException; instead, exceptional situations merely set an internal flag that can be tested via the checkError method. Optionally, a PrintStream can be created so as to flush automatically; this means that the flush method is automatically invoked after a byte array is written, one of the println methods is invoked, or a newline character or byte ('\n') is written.

All characters printed by a PrintStream are converted into bytes using the platform's default character encoding. The PrintWriter class should be used in situations that require writing characters rather than bytes.

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
NpPrintStream(OutputStream out) Create a new print stream.

Method Summary

Modifier and Type	Method and Description
void	close() Close the stream.
protected void	ensureOpen() Check to make sure that the stream has not been closed
void	flush() Flush the stream.
void	print(boolean b) Print a boolean value.
void	print(char c) Print a character.
void	print(char[] s) Print an array of characters.
void	print(double d) Print a double-precision floating-point number.
void	print(float f) Print a floating-point number.
void	print(int i) Print an integer.
void	print(long l) Print a long integer.
void	print(Object obj) Print an object.
void	print(String s) Print a string.
void	println() Terminate the current line by writing the line separator string.
void	println(boolean x) Print a boolean and then terminate the line.
void	println(char x) Print a character and then terminate the line.
void	println(char[] x) Print an array of characters and then terminate the line.
void	println(double x) Print a double and then terminate the line.
void	println(float x) Print a float and then terminate the line.
void	println(int x) Print an integer and then terminate the line.
void	println(long x) Print a long and then terminate the line.
void	println(Object x) Print an Object and then terminate the line.
void	println(String x) Print a String and then terminate the line.
void	setNewOutput(OutputStream out) Sets a new output stream for the output.
void	write(byte[] buf, int off, int len) Write len bytes from the specified byte array starting at offset off to this stream.
void	write(int b) Write the specified byte to this stream.

Methods inherited from class java.io.PrintStream

append, append, append, checkError, clearError, format, format, printf, printf, setError

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

NpPrintStream

public NpPrintStream(OutputStream out)

Create a new print stream.

Parameters:

out - The output stream to which values and objects will be printed

See Also:

PrintWriter(java.io.OutputStream)

Method Detail

setNewOutput

public void setNewOutput(OutputStream out)

Sets a new output stream for the output. This is used by the rotate trace files.

ensureOpen

protected void ensureOpen()
                   throws IOException

Check to make sure that the stream has not been closed

Throws:

IOException

flush

public void flush()

Flush the stream. This is done by writing any buffered output bytes to the underlying output stream and then flushing that stream.

Specified by:

flush in interface Flushable

Overrides:

flush in class PrintStream

See Also:

OutputStream.flush()

close

public void close()

Close the stream. This is done by flushing the stream and then closing the underlying output stream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class PrintStream

See Also:

OutputStream.close()

write

public void write(int b)

Write the specified byte to this stream. If the byte is a newline and automatic flushing is enabled then the flush method will be invoked.

Note that the byte is written as given; to write a character that will be translated according to the platform's default character encoding, use the print(char) or println(char) methods.

Overrides:

write in class PrintStream

Parameters:

b - The byte to be written

See Also:

print(char), println(char)

write

public void write(byte[] buf,
                  int off,
                  int len)

Write len bytes from the specified byte array starting at offset off to this stream. If automatic flushing is enabled then the flush method will be invoked.

Note that the bytes will be written as given; to write characters that will be translated according to the platform's default character encoding, use the print(char) or println(char) methods.

Overrides:

write in class PrintStream

Parameters:

buf - A byte array

off - Offset from which to start taking bytes

len - Number of bytes to write

print

public void print(boolean b)

Print a boolean value. The string produced by String.valueOf(boolean) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

b - The boolean to be printed

print

public void print(char c)

Print a character. The character is translated into one or more bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

c - The char to be printed

print

public void print(int i)

Print an integer. The string produced by String.valueOf(int) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

i - The int to be printed

See Also:

Integer.toString(int)

print

public void print(long l)

Print a long integer. The string produced by String.valueOf(long) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

l - The long to be printed

See Also:

Long.toString(long)

print

public void print(float f)

Print a floating-point number. The string produced by String.valueOf(float) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

f - The float to be printed

See Also:

Float.toString(float)

print

public void print(double d)

Print a double-precision floating-point number. The string produced by String.valueOf(double) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

d - The double to be printed

See Also:

Double.toString(double)

print

public void print(char[] s)

Print an array of characters. The characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

s - The array of chars to be printed

Throws:

NullPointerException - If s is null

print

public void print(String s)

Print a string. If the argument is null then the string "null" is printed. Otherwise, the string's characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

s - The String to be printed

print

public void print(Object obj)

Print an object. The string produced by the String.valueOf(Object) method is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Overrides:

print in class PrintStream

Parameters:

obj - The Object to be printed

See Also:

Object.toString()

println

public void println()

Terminate the current line by writing the line separator string. The line separator string is defined by the system property line.separator, and is not necessarily a single newline character ('\n').

Overrides:

println in class PrintStream

println

public void println(boolean x)

Print a boolean and then terminate the line. This method behaves as though it invokes print(boolean) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The boolean to be printed

println

public void println(char x)

Print a character and then terminate the line. This method behaves as though it invokes print(char) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The char to be printed.

println

public void println(int x)

Print an integer and then terminate the line. This method behaves as though it invokes print(int) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The int to be printed.

println

public void println(long x)

Print a long and then terminate the line. This method behaves as though it invokes print(long) and then println().

Overrides:

println in class PrintStream

Parameters:

x - a The long to be printed.

println

public void println(float x)

Print a float and then terminate the line. This method behaves as though it invokes print(float) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The float to be printed.

println

public void println(double x)

Print a double and then terminate the line. This method behaves as though it invokes print(double) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The double to be printed.

println

public void println(char[] x)

Print an array of characters and then terminate the line. This method behaves as though it invokes print(char[]) and then println().

Overrides:

println in class PrintStream

Parameters:

x - an array of chars to print.

println

public void println(String x)

Print a String and then terminate the line. This method behaves as though it invokes print(String) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The String to be printed.

println

public void println(Object x)

Print an Object and then terminate the line. This method behaves as though it invokes print(Object) and then println().

Overrides:

println in class PrintStream

Parameters:

x - The Object to be printed.