Fix inclusion of croftsoft source code

Lightstreamer · Mar 29, 2024 · ae754de · ae754de
1 parent caec0fa
commit ae754de
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diff --git a/src/main/java/com/croftsfot/core/applet/AppletLib.java b/src/main/java/com/croftsfot/core/applet/AppletLib.java
@@ -0,0 +1,110 @@
+     package com.croftsoft.core.applet;
+
+     import java.applet.*;
+     import java.io.*;
+
+     import com.croftsoft.core.io.SerializableLib;
+     import com.croftsoft.core.lang.NullArgumentException;
+
+     /*********************************************************************
+     * Static library methods for manipulating Applets.
+     *
+     * @version
+     *   $Id: AppletLib.java,v 1.3 2008/09/28 21:50:42 croft Exp $
+     * @since
+     *   2002-12-22
+     * @author
+     *   <a href="http://www.CroftSoft.com/">David Wallace Croft</a>
+     *********************************************************************/
+
+     public final class  AppletLib
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+     {
+
+     /*********************************************************************
+     * Loads GZIP compressed data.
+     *********************************************************************/
+     public static Serializable  loadSerializableUsingAppletPersistence (
+       Applet  applet,
+       String  key )
+       throws ClassNotFoundException, IOException,
+         UnsupportedOperationException
+     //////////////////////////////////////////////////////////////////////
+     {
+       NullArgumentException.check ( applet, "null applet" );
+
+       NullArgumentException.check ( key, "null key" );
+
+       AppletContext  appletContext = null;
+
+       try
+       {
+         appletContext = applet.getAppletContext ( );
+       }
+       catch ( NullPointerException  ex )
+       {
+         // ignore
+       }
+
+       if ( appletContext == null )
+       {
+         throw new UnsupportedOperationException ( "null AppletContext" );
+       }
+
+       InputStream  inputStream = appletContext.getStream ( key );
+
+       if ( inputStream == null )
+       {
+         return null;
+       }
+
+       return SerializableLib.load ( inputStream );
+     }
+
+     /*********************************************************************
+     * Saves data using GZIP compression.
+     *********************************************************************/
+     public static void  saveSerializableUsingAppletPersistence (
+       Applet        applet,
+       String        key,
+       Serializable  serializable )
+       throws IOException, UnsupportedOperationException
+     //////////////////////////////////////////////////////////////////////
+     {
+       NullArgumentException.check ( applet, "null applet" );
+
+       NullArgumentException.check ( key, "null key" );
+
+       NullArgumentException.check ( serializable, "null serializable" );
+
+       AppletContext  appletContext = null;
+
+       try
+       {
+         appletContext = applet.getAppletContext ( );
+       }
+       catch ( NullPointerException  ex )
+       {
+         // ignore
+       }
+
+       if ( appletContext == null )
+       {
+         throw new UnsupportedOperationException ( "null AppletContext" );
+       }
+
+       InputStream  inputStream = new ByteArrayInputStream (
+         SerializableLib.compress ( serializable ) );
+
+       appletContext.setStream ( key, inputStream );
+     }
+
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+
+     private  AppletLib ( ) { /* empty */ }
+
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+     }
diff --git a/src/main/java/com/croftsfot/core/applet/package.html b/src/main/java/com/croftsfot/core/applet/package.html
@@ -0,0 +1,7 @@
+<html>
+<head>
+</head>
+<body>
+Applet manipulation code.
+</body>
+</html>
diff --git a/src/main/java/com/croftsfot/core/io/EchoReader.java b/src/main/java/com/croftsfot/core/io/EchoReader.java
@@ -0,0 +1,116 @@
+     package com.croftsoft.core.io;
+
+     import java.io.*;
+
+     import com.croftsoft.core.lang.NullArgumentException;
+
+     /*********************************************************************
+     * A FilterReader that echoes characters read to a Writer.
+     *
+     * <p />
+     *
+     * @version
+     *   2002-09-19
+     * @since
+     *   2002-09-19
+     * @author
+     *   <a href="http://www.CroftSoft.com/">David Wallace Croft</a>
+     *********************************************************************/
+
+     public final class  EchoReader
+       extends FilterReader
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+     {
+
+     private final Writer  echoWriter;
+
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+
+     /*********************************************************************
+     * Main constructor.
+     *********************************************************************/
+     public  EchoReader (
+       Reader  in,
+       Writer  echoWriter )
+     //////////////////////////////////////////////////////////////////////
+     {
+       super ( in );
+
+       NullArgumentException.check ( this.echoWriter = echoWriter );
+     }
+
+     /*********************************************************************
+     * Echoes to the standard output.
+     * <code><pre>this ( in, new PrintWriter ( System.out ) );</pre></code>
+     *********************************************************************/
+     public  EchoReader ( Reader  in )
+     //////////////////////////////////////////////////////////////////////
+     {
+       this ( in, new PrintWriter ( System.out ) );
+     }
+
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+
+     public int  read ( )
+       throws IOException
+     //////////////////////////////////////////////////////////////////////
+     {
+       int  ch = super.read ( );
+
+       if ( ch > -1 )
+       {
+         echoWriter.write ( ch );
+       }
+
+       return ch;
+     }
+
+     public int  read (
+       char [ ]  cbuf,
+       int       off,
+       int       len )
+       throws IOException
+     //////////////////////////////////////////////////////////////////////
+     {
+       int  count = super.read ( cbuf, off, len );
+
+       if ( count > -1 )
+       {
+         echoWriter.write ( cbuf, off, count );
+       }
+
+       return count;
+     }
+
+     public int  read ( char [ ]  cbuf )
+       throws IOException
+     //////////////////////////////////////////////////////////////////////
+     {
+       int  count = super.read ( cbuf );
+
+       if ( count > -1 )
+       {
+         echoWriter.write ( cbuf, 0, count );
+       }
+
+       return count;
+     }
+
+     /*********************************************************************
+     * Flushes the echoWriter in addition to closing the input.
+     *********************************************************************/
+     public void  close ( )
+       throws IOException
+     //////////////////////////////////////////////////////////////////////
+     {
+       super.close ( );
+
+       echoWriter.flush ( );
+     }
+
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+     }
diff --git a/src/main/java/com/croftsfot/core/io/Encoder.java b/src/main/java/com/croftsfot/core/io/Encoder.java
@@ -0,0 +1,28 @@
+     package com.croftsoft.core.io;
+
+     import java.io.*;
+
+     /*********************************************************************
+     * A generic interface for Object encoders.
+     *
+     * @see
+     *   Parser
+     * @version
+     *   2003-05-13
+     * @since
+     *   2000-03-23
+     * @author
+     *   <a href="http://www.CroftSoft.com/">David Wallace Croft</a>
+     *********************************************************************/
+
+     public interface  Encoder
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+     {
+
+     public byte [ ]  encode ( Object  object )
+       throws IOException;
+
+     //////////////////////////////////////////////////////////////////////
+     //////////////////////////////////////////////////////////////////////
+     }