Removed log message caching from the default log provider in the interest

of KISS.  Someday the default log provider will surely be able to read
e-mail, otherwise it will be replaced by someone else's log provider that
can.


git-svn-id: https://samskivert.googlecode.com/svn/trunk@871 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/samskivert/src/java/com/samskivert/util/DefaultLogProvider.java

@@ -1,5 +1,5 @@
 //
-// $Id: DefaultLogProvider.java,v 1.16 2002/10/16 19:10:13 shaper Exp $
+// $Id: DefaultLogProvider.java,v 1.17 2002/10/16 19:30:15 shaper Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -22,8 +22,6 @@ package com.samskivert.util;
 
 import java.awt.Dimension;
 
-import java.io.PrintStream;
-
 import java.text.SimpleDateFormat;
 
 import java.util.ArrayList;
@@ -31,8 +29,6 @@ import java.util.Date;
 import java.util.Hashtable;
 import java.util.List;
 
-import com.samskivert.io.ExtensiblePrintStream;
-
 /**
  * If no log provider is registered with the log services, the default
  * provider will be used. The default provider simply logs messages to
@@ -63,45 +59,6 @@ public class DefaultLogProvider implements LogProvider
         }
     }
 
-    /**
-     * Sets whether recent log messages should be cached and made
-     * available via {@link #getRecentMessages}.  The default setting is
-     * <code>false</code>.  Note that currently all messages logged after
-     * caching is turned on will be kept forever (or until caching is
-     * turned off.)
-     */
-    public synchronized void setCacheMessages (boolean cache)
-    {
-        if (cache && _recent == null) {
-            // create the list of recent messages
-            _recent = new ArrayList();
-
-            // swap in our own custom output streams for stdout and stderr
-            // in order to cache all future output
-            _oout = System.out;
-            _oerr = System.err;
-            System.setOut(new CachingPrintStream(_oout));
-            System.setErr(new CachingPrintStream(_oerr));
-
-        } else if (!cache && _recent != null) {
-            // clear out the recent message list
-            _recent = null;
-
-            // restore the original output streams
-            System.setOut(_oout);
-            System.setErr(_oerr);
-        }
-    }
-
-    /**
-     * Returns a list of the recent log messages, or <code>null</code> if
-     * log messages are not currently being cached.
-     */
-    public synchronized List getRecentMessages ()
-    {
-        return _recent;
-    }
-
     public synchronized void log (
         int level, String moduleName, String message)
     {
@@ -216,40 +173,6 @@ public class DefaultLogProvider implements LogProvider
         }
     }
 
-    /**
-     * A print stream that caches all printed text in the {@link #_recent}
-     * list.
-     */
-    protected class CachingPrintStream extends ExtensiblePrintStream
-    {
-        /**
-         * Constructs a caching print stream that caches all output
-         * written to the supplied stream.
-         */
-        public CachingPrintStream (PrintStream s)
-        {
-            super(s, true);
-        }
-
-        // documentation inherited
-        public void handlePrinted (String s)
-        {
-            _buf.append(s);
-        }
-
-        // documentation inherited
-        public void handleNewLine ()
-        {
-            // save off the text
-            _recent.add(_buf.toString());
-            // clear out the line buffer
-            _buf = new StringBuffer();
-        }
-
-        /** The working string that gathers each log message line. */
-        protected StringBuffer _buf = new StringBuffer();
-    }
-
     /** Whether or not to use the vt100 escape codes. */
     protected boolean _useVT100 = false;
 
@@ -263,15 +186,6 @@ public class DefaultLogProvider implements LogProvider
     protected SimpleDateFormat _format =
         new SimpleDateFormat("yyyy/MM/dd HH:mm:ss:SSS");
 
-    /** The cached recent log messages that are made available to any
-     * external entities that would like access to them if we're actually
-     * caching messages. */
-    protected ArrayList _recent;
-
-    /** The original output streams that we save off if we're caching
-     * recent log messages. */
-    protected PrintStream _oout, _oerr;
-
     /** Contains the dimensions of the terminal window in which we're
      * running, if it was possible to obtain them. Otherwise, it contains
      * the default dimensions. This is used to wrap lines. */