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Java library to read, modify or create Rational Rose petal files
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/**
 * Copyright (c) 2001 Markus Dahm
 * Copyright (C) 2015-2018 BITPlan GmbH http://www.bitplan.com
 *
 * This source is part of
 * https://github.com/BITPlan/CrazyBeans
 * and the license as outlined there applies
 */
package cb.util;

import cb.petal.BooleanLiteral;
import cb.petal.DescendingVisitor;
import cb.petal.FloatLiteral;
import cb.petal.IntegerLiteral;
import cb.petal.PetalFile;
import cb.petal.PetalNode;
import cb.petal.PetalObject;
import cb.petal.StringLiteral;

import java.util.*;

/**
 * Generate class derived from petal object for given type.
 * This is a bootstrap helper class which self-references the Java-Code base of this project
 *
 * @version $Id: ObjectGenerator.java,v 1.9 2001/11/01 15:56:49 dahm Exp $
 * @author M. Dahm
 */
public class ObjectGenerator extends DescendingVisitor {
	private String ident;
	private boolean first = false;
	private Set found = new HashSet();

	private ObjectGenerator(String id) {
		this.ident = id;
	}

	public void visitObject(PetalObject obj) {
		if (obj.getName().equals(ident)) {
			if (!first) {
				String class_name = Constants.makeName(obj.getName());

				System.out
						.println("package cb.petal;\nimport java.util.Collection;\n\n"
								+ "/**\n * Represents "
								+ obj.getName()
								+ " object\n"
								+ " *\n"
								+ " * @version $Id: ObjectGenerator.java,v 1.9 2001/11/01 15:56:49 dahm Exp $\n"
								+ " * @author  "
								+ "M. Dahm\n */");

				System.out.println("public class " + class_name
						+ " extends PetalObject {");
				System.out.println("  public " + class_name
						+ "(PetalObject parent, Collection params) {");
				System.out.println("    super(parent, \"" + ident + "\", params);");
				System.out.println("  }\n");

				System.out.println("  public " + class_name + "() {");
				System.out.println("    super(\"" + ident + "\");");
				System.out.println("  }\n");

				int k = 0;
				for (@SuppressWarnings("rawtypes")
				Iterator i = obj.getParameterList().iterator(); i.hasNext(); k++) {
					System.out.println("  public void setViewParameter(String o) {");
					System.out.println("    params.set(" + k + ", o);\n  }\n");

					System.out.println("  public String getViewParameter() {");
					System.out
							.println("    return (String)params.get(" + k + ");\n  }\n");
					i.next();
				}

				// for DefaultVisitor and Visitor
				System.err.println("  public void visit(" + class_name
						+ " obj) { visitObject(obj); }");
			}

			for (@SuppressWarnings("rawtypes")
			Iterator i = obj.getNames().iterator(), j = obj.getPropertyList()
					.iterator(); i.hasNext();) {
				String name = (String) i.next();
				PetalNode node = (PetalNode) j.next();
				String type = getShortType(node);

				if (!found.contains(name) && (type != null) && !name.equals("quid")
						&& !name.equals("quidu")) {
					String type2 = getLongType(type);
					String method = Constants.makeName(name);
					boolean prim = true;

					if (name.equals("name"))
						method = obj.getName() + "Name";

					if (name.equals("value"))
						type = type2 = "PetalNode";

					try { // Hack warning
						java.lang.Class cl = java.lang.Class.forName("java.lang." + type2);
						if (cl!=null) {
							prim=true;
						}
					} catch (ClassNotFoundException e) {
						prim = false;
					}

					if (prim) {
						System.out.println("  public " + type + " get" + method + "() {\n"
								+ "    return getPropertyAs" + type2 + "(\"" + name + "\");\n"
								+ "  }\n");

						System.out.println("  public void set" + method + "(" + type
								+ " o) {\n" + "    defineProperty(\"" + name + "\", o);\n"
								+ "  }\n");
					} else {
						System.out.println("  public " + type + " get" + method + "() {\n"
								+ "    return (" + type + ")getProperty(\"" + name
								+ "\");\n  }\n");

						System.out.println("  public void set" + method + "(" + type
								+ " o) {\n" + "    defineProperty(\"" + name + "\", o);\n"
								+ "  }\n");
					}
				}

				found.add(name);
			}

			first = true;
		}// else
			// System.err.println("Unknown object type " + obj.getName());

		super.visitObject(obj);
	}

	private static String getShortType(PetalNode node) {
		if (node instanceof StringLiteral)
			return "String";
		else if (node instanceof IntegerLiteral)
			return "int";
		else if (node instanceof BooleanLiteral)
			return "boolean";
		else if (node instanceof FloatLiteral)
			return "double";
		else {
			String name = node.getClass().getName();
			int index = name.lastIndexOf('.');

			return name.substring(index + 1);
		}
	}

	private static String getLongType(String type) {
		if (type.equals("double"))
			return "Float";
		else if (type.equals("int"))
			return "Integer";
		else if (type.equals("boolean"))
			return "Boolean";
		else
			return type;
	}

	public static void main(String[] args) {
		PetalFile tree = cb.parser.PetalParser.parse(args);

		tree.accept(new ObjectGenerator(args[1]));

		System.out
				.println("  public void accept(Visitor v) {\n    v.visit(this);\n  }");
		System.out.println("}");
	}
}