Package jj2000.j2k.util
Class StreamMsgLogger
- java.lang.Object
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- jj2000.j2k.util.StreamMsgLogger
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- All Implemented Interfaces:
MsgLogger
public class StreamMsgLogger extends Object implements MsgLogger
This class implements the MsgLogger interface for streams. Streams can be simple files, terminals, stdout, stderr, etc. The messages or simple strings are formatted using the linewidth given to the constructor.Messages are printed to the 'err' stream if they are of severity WARNING or ERROR, otherwise they are printed to the 'out' stream. Simple strings are always printed the 'out' stream.
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Constructor Summary
Constructors Constructor Description StreamMsgLogger(OutputStream outstr, OutputStream errstr, int lw)
Constructs a StreamMsgLogger that uses 'outstr' as the 'out' stream, and 'errstr' as the 'err' stream.StreamMsgLogger(PrintWriter outstr, PrintWriter errstr, int lw)
Constructs a StreamMsgLogger that uses 'outstr' as the 'out' stream, and 'errstr' as the 'err' stream.StreamMsgLogger(Writer outstr, Writer errstr, int lw)
Constructs a StreamMsgLogger that uses 'outstr' as the 'out' stream, and 'errstr' as the 'err' stream.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
flush()
Writes any buffered data from the print() and println() methods to the device.void
println(String str, int flind, int ind)
Prints the string 'str' to the 'out' stream, appending a newline.void
printmsg(int sev, String msg)
Prints the message 'msg' to the output device, appending a newline, with severity 'sev'.
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Constructor Detail
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StreamMsgLogger
public StreamMsgLogger(OutputStream outstr, OutputStream errstr, int lw)
Constructs a StreamMsgLogger that uses 'outstr' as the 'out' stream, and 'errstr' as the 'err' stream. Note that 'outstr' and 'errstr' can be System.out and System.err.- Parameters:
outstr
- Where to print simple strings and LOG and INFO messages.errstr
- Where to print WARNING and ERROR messageslw
- The line width to use in formatting
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StreamMsgLogger
public StreamMsgLogger(Writer outstr, Writer errstr, int lw)
Constructs a StreamMsgLogger that uses 'outstr' as the 'out' stream, and 'errstr' as the 'err' stream. Note that 'outstr' and 'errstr' can be System.out and System.err.- Parameters:
outstr
- Where to print simple strings and LOG and INFO messages.errstr
- Where to print WARNING and ERROR messageslw
- The line width to use in formatting
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StreamMsgLogger
public StreamMsgLogger(PrintWriter outstr, PrintWriter errstr, int lw)
Constructs a StreamMsgLogger that uses 'outstr' as the 'out' stream, and 'errstr' as the 'err' stream. Note that 'outstr' and 'errstr' can be System.out and System.err.- Parameters:
outstr
- Where to print simple strings and LOG and INFO messages.errstr
- Where to print WARNING and ERROR messageslw
- The line width to use in formatting
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Method Detail
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printmsg
public void printmsg(int sev, String msg)
Prints the message 'msg' to the output device, appending a newline, with severity 'sev'. The severity of the message is prepended to the message.
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println
public void println(String str, int flind, int ind)
Prints the string 'str' to the 'out' stream, appending a newline. The message is reformatted to the line width given to the constructors and using 'flind' characters to indent the first line and 'ind' characters to indent the second line. However, any newlines appearing in 'str' are respected. The output device may or may not display the string until flush() is called, depending on the autoflush state of the PrintWriter, to be sure flush() should be called to write the string to the device. This method just prints the string, the string does not make part of a "message" in the sense that noe severity is associated to it.
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