Package de.intarsys.tools.writer

Class LogWriter

java.lang.Object
java.io.Writer
java.io.FilterWriter
de.intarsys.tools.writer.LogWriter
All Implemented Interfaces:
Closeable, Flushable, Appendable, AutoCloseable
public class LogWriter extends FilterWriter
A writer that logs any char written.

The writer is piped in the writing process, any characters written are copied to an associated writer object. 

 Client -> LogWriter -> Writer -> Destination
            |
            v
           Writer (Copy)

  • Constructor Details

    • LogWriter

      public LogWriter(Writer o, Writer log)
      EscapeWriter constructor comment.
      Parameters:
      o - java.io.Writer
      log -

  • Method Details

    • close

      public void close() throws IOException
      Close the stream, flushing it first. Once a stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously-closed stream, however, has no effect.
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Overrides:
      close in class FilterWriter
      Throws:
      IOException - If an I/O error occurs

    • flush

      public void flush() throws IOException
      Flush the stream. If the stream has saved any characters from the various write() methods in a buffer, write them immediately to their intended destination. Then, if that destination is another character or byte stream, flush it. Thus one flush() invocation will flush all the buffers in a chain of Writers and OutputStreams.
      Specified by:
      flush in interface Flushable
      Overrides:
      flush in class FilterWriter
      Throws:
      IOException - If an I/O error occurs

    • getLog

      public Writer getLog()

    • write

      public void write(char[] cbuf, int off, int len) throws IOException
      Overrides:
      write in class FilterWriter
      Throws:
      IOException

    • write

      public void write(int c) throws IOException
      Overrides:
      write in class FilterWriter
      Throws:
      IOException

    • write

      public void write(String str, int off, int len) throws IOException
      Overrides:
      write in class FilterWriter
      Throws:
      IOException