ConstantsGenerator.java

/******************************************************************************
 * Copyright (c) 2013, Linagora
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * 		Linagora - initial API and implementation
 *******************************************************************************/
 
package com.ebmwebsourcing.petals.studio.dev.properties.internal;

import com.ebmwebsourcing.petals.studio.dev.properties.AbstractModel;

/**
 * A class that generates a Java class with constants and important meta information.
 * @author Vincent Zurczak - Linagora
 */
public class ConstantsGenerator {

	/**
	 * Generates a simple Java class with constants to easily access model properties.
	 * @param javaPackage the Java package
	 * @param className the class name
	 * @param model the abstract model
	 * @return the Java class' content
	 */
	public String generateJavaClass( String javaPackage, String className, AbstractModel model ) {

		StringBuilder sb = new StringBuilder();
		sb.append( "package " + javaPackage + ";\n\n" );
		sb.append( "public class " + className + " {\n\n" );
		for( String key : model.getProperties().getPropertyMap().keySet()) {
			if( AbstractModel.PROPERTY_VERSION.equals( key ))
				continue;

			sb.append( "\t/**\n" );
			String doc = model.getDocumentation( key );
			int indexDot = doc.indexOf( '.' );
			int indexBl = doc.indexOf( '\n' );
			int index = indexDot == -1 ? indexBl : indexBl == -1 ? indexDot : Math.min( indexDot, indexBl );

			boolean multiLine = index > 0 && index < doc.length() - 1;
			if( multiLine) {
				index ++;
				sb.append( "\t * " + doc.substring( 0, index ).trim() + "\n" );
				doc = "<p>\n" + doc.substring( index ).trim().replaceAll( "((\n\r)|(\n)){2,}", "\n</p>\n<p>\n" );
			}

			for( String s : doc.split( "\n" ))
				sb.append( "\t * " + s + "\n" );

			if( multiLine )
				sb.append( "\t * </p>\n" );

			sb.append( "\t */\n" );
			sb.append( "\tpublic static final String " );
			sb.append( key.toUpperCase().replaceAll( "\\.|-", "_" ));
			sb.append( " = \"" );
			sb.append( key );
			sb.append( "\";\n\n" );
		}

		sb.append( "}\n" );
		return sb.toString().replaceAll( "\t \\* <p>\n\t \\* </p>\n", "" );
	}
}