CopyConstructorGeneratorExtension.java

/*
 * Distributed as part of mchange-commons-java 0.2.11
 *
 * Copyright (C) 2015 Machinery For Change, Inc.
 *
 * Author: Steve Waldman <swaldman@mchange.com>
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of EITHER:
 *
 *     1) The GNU Lesser General Public License (LGPL), version 2.1, as 
 *        published by the Free Software Foundation
 *
 * OR
 *
 *     2) The Eclipse Public License (EPL), version 1.0
 *
 * You may choose which license to accept if you wish to redistribute
 * or modify this work. You may offer derivatives of this work
 * under the license you have chosen, or you may provide the same
 * choice of license which you have been offered here.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received copies of both LGPL v2.1 and EPL v1.0
 * along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
 * If not, the text of these licenses are currently available at
 *
 * LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 *  EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php 
 * 
 */

package com.mchange.v2.codegen.bean;

import java.util.*;
import java.lang.reflect.Modifier;
import java.io.IOException;
import com.mchange.v2.codegen.CodegenUtils;
import com.mchange.v2.codegen.IndentedWriter;

public class CopyConstructorGeneratorExtension implements GeneratorExtension 
{
    int ctor_modifiers = Modifier.PUBLIC;

    public Collection extraGeneralImports()
    { return Collections.EMPTY_SET; }

    public Collection extraSpecificImports()
    { return Collections.EMPTY_SET; }

    public Collection extraInterfaceNames()
    { return Collections.EMPTY_SET; }

    public void generate(ClassInfo info, Class superclassType, Property[] props, Class[] propTypes, IndentedWriter iw)
	throws IOException
    {
	iw.print( CodegenUtils.getModifierString( ctor_modifiers ) );
	iw.print(" " + info.getClassName() + "( ");
	iw.print( info.getClassName() + " copyMe" );
	iw.println(" )");
	iw.println("{");
	iw.upIndent();

	for (int i = 0, len = props.length; i < len; ++i)
	    {
		String propGetterMethodCall;
		if (propTypes[i] == boolean.class)
		    propGetterMethodCall = "is" + BeangenUtils.capitalize( props[i].getName() ) + "()";
		else
		    propGetterMethodCall = "get" + BeangenUtils.capitalize( props[i].getName() ) + "()";
		iw.println(props[i].getSimpleTypeName() + ' ' + props[i].getName() + " = copyMe." + propGetterMethodCall + ';');
		iw.print("this." + props[i].getName() + " = ");
		String setExp = props[i].getDefensiveCopyExpression();
		if (setExp == null)
		    setExp = props[i].getName();
		iw.println(setExp + ';');
	    }

	iw.downIndent();
	iw.println("}");
    }
}