Remove old attempt at generalizing the converter architecture

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271464 13f79535-47bb-0310-9956-ffa450edef68

proposal/myrmidon/src/java/org/apache/aut/converter/AbstractConverter.java

@@ -1,82 +0,0 @@
-/*
- * Copyright (C) The Apache Software Foundation. All rights reserved.
- *
- * This software is published under the terms of the Apache Software License
- * version 1.1, a copy of which has been included with this distribution in
- * the LICENSE.txt file.
- */
-package org.apache.aut.converter;
-
-import org.apache.avalon.excalibur.i18n.ResourceManager;
-import org.apache.avalon.excalibur.i18n.Resources;
-
-/**
- * Instances of this interface are used to convert between different types.
- *
- * @author <a href="mailto:peter@apache.org">Peter Donald</a>
- * @version $Revision$ $Date$
- */
-public abstract class AbstractConverter
-    implements Converter
-{
-    private final static Resources REZ =
-        ResourceManager.getPackageResources( AbstractConverter.class );
-
-    private final Class m_source;
-    private final Class m_destination;
-
-    /**
-     * Constructor for a converter between types source and destination
-     *
-     * @param source the source type
-     * @param destination the destination type
-     */
-    public AbstractConverter( final Class source, final Class destination )
-    {
-        m_source = source;
-        m_destination = destination;
-    }
-
-    /**
-     * Convert an object from original to destination types
-     *
-     * @param destination the destination type
-     * @param original the original Object
-     * @param context the context in which to convert
-     * @return the converted object
-     * @exception ConverterException if an error occurs
-     */
-    public Object convert( final Class destination,
-                           final Object original,
-                           final ConverterContext context )
-        throws ConverterException
-    {
-        if( m_destination != destination )
-        {
-            final String message =
-                REZ.getString( "bad-destination.error", destination.getName(), m_destination );
-            throw new IllegalArgumentException( message );
-        }
-
-        if( !m_source.isInstance( original ) )
-        {
-            final String message =
-                REZ.getString( "bad-instance.error", original, m_source.getName() );
-            throw new IllegalArgumentException( message );
-        }
-
-        return convert( original, context );
-    }
-
-    /**
-     * Overide this in a particular converter to do the conversion.
-     *
-     * @param original the original Object
-     * @param context the context in which to convert
-     * @return the converted object
-     * @exception ConverterException if an error occurs
-     */
-    protected abstract Object convert( Object original, ConverterContext context )
-        throws ConverterException;
-}
-

proposal/myrmidon/src/java/org/apache/aut/converter/Converter.java

@@ -1,34 +0,0 @@
-/*
- * Copyright (C) The Apache Software Foundation. All rights reserved.
- *
- * This software is published under the terms of the Apache Software License
- * version 1.1, a copy of which has been included with this distribution in
- * the LICENSE.txt file.
- */
-package org.apache.aut.converter;
-
-/**
- * Instances of this interface are used to convert between different types.
- *
- * @author <a href="mailto:peter@apache.org">Peter Donald</a>
- * @version $Revision$ $Date$
- * @ant:role shorthand="converter"
- */
-public interface Converter
-{
-    String ROLE = Converter.class.getName();
-
-    /**
-     * Convert original to destination type.
-     * Destination is passed so that one converter can potentiall
-     * convert to multiple different types.
-     *
-     * @param destination the destinaiton type
-     * @param original the original type
-     * @param context the context in which to convert
-     * @return the converted object
-     * @exception ConverterException if an error occurs
-     */
-    Object convert( Class destination, Object original, ConverterContext context )
-        throws ConverterException;
-}

proposal/myrmidon/src/java/org/apache/aut/converter/ConverterContext.java

@@ -1,24 +0,0 @@
-/*
- * Copyright (C) The Apache Software Foundation. All rights reserved.
- *
- * This software is published under the terms of the Apache Software License
- * version 1.1, a copy of which has been included with this distribution in
- * the LICENSE.txt file.
- */
-package org.apache.aut.converter;
-
-/**
- * The context in which objects can be converted from one type to another type.
- *
- * @author <a href="mailto:peter@apache.org">Peter Donald</a>
- * @version $Revision$ $Date$
- * @ant:role shorthand="converter"
- */
-public interface ConverterContext
-{
-    /**
-     * Retrieve a vlaue from the context with the specified key.
-     * Will return null if no such value exists.
-     */
-    Object get( Object key );
-}

proposal/myrmidon/src/java/org/apache/aut/converter/ConverterException.java

@@ -1,42 +0,0 @@
-/*
- * Copyright (C) The Apache Software Foundation. All rights reserved.
- *
- * This software is published under the terms of the Apache Software License
- * version 1.1, a copy of which has been included with this distribution in
- * the LICENSE.txt file.
- */
-package org.apache.aut.converter;
-
-import org.apache.avalon.framework.CascadingException;
-
-/**
- * ConverterException thrown when a problem occurs during convertion etc.
- *
- * @author <a href="mailto:peter@apache.org">Peter Donald</a>
- * @version $Revision$ $Date$
- */
-public class ConverterException
-    extends CascadingException
-{
-    /**
-     * Basic constructor with a message
-     *
-     * @param message the message
-     */
-    public ConverterException( final String message )
-    {
-        this( message, null );
-    }
-
-    /**
-     * Constructor that builds cascade so that other exception information can be retained.
-     *
-     * @param message the message
-     * @param throwable the throwable
-     */
-    public ConverterException( final String message, final Throwable throwable )
-    {
-        super( message, throwable );
-    }
-}
-

proposal/myrmidon/src/java/org/apache/aut/converter/Resources.properties

@@ -1,2 +0,0 @@
-bad-destination.error=Destination type ({0}) is not equal to {1}.
-bad-instance.error=Object {0} is not an instance of {1}.