org.eclipse.osbp.infogrid.model/src/org/eclipse/osbp/infogrid/model/gridsource/util/Util.xtend

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * All rights reserved. This program and the accompanying materials           
 * are made available under the terms of the Eclipse Public License 2.0        
 * which accompanies this distribution, and is available at                  
 * https://www.eclipse.org/legal/epl-2.0/                                 
 *                                 
 * SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 * Contributors:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 * 
 * 
 *  This copyright notice shows up in the generated Java code
 *
 */
 
package org.eclipse.osbp.infogrid.model.gridsource.util

import org.eclipse.xtext.common.types.JvmType
import org.eclipse.osbp.infogrid.model.gridsource.CxGridNestedField
import org.eclipse.osbp.infogrid.model.gridsource.CxGridNestedPath
import org.eclipse.osbp.infogrid.model.gridsource.CxGridProperty

class Util {

	def static String calcDotPath(CxGridProperty property) {
		if (property.path == null) {
			return "";
		}

		return property.path.calcDotPath
	}

	def static String calcDotPath(CxGridNestedField field) {
		if (field == null || field.field == null) {
			return "";
		}

		val String fieldName = field.field.simpleName.toPropertyName
		val String tail = field.path?.calcDotPath
		return if(!tail.nullOrEmpty) fieldName + "." + tail else fieldName
	}

	def static String calcDotPath(CxGridNestedPath path) {
		if (path == null || path.field == null) {
			return "";
		}

		val String fieldName = path.field.simpleName.toPropertyName
		val String tail = path.path?.calcDotPath

		return if(!tail.nullOrEmpty) fieldName + "." + tail else fieldName
	}

	def static JvmType calcLeafType(CxGridProperty property) {
		if (property.path == null) {
			return null;
		}

		return property.path.calcLeafType
	}

	def static JvmType calcLeafType(CxGridNestedField field) {
		if (field == null || field.field == null) {
			return null;
		}

		if (field.path != null) {
			return field.path.calcLeafType
		} else {
			return field.field.returnType.type
		}
	}

	def static JvmType calcLeafType(CxGridNestedPath path) {
		if (path == null || path.field == null) {
			return null;
		}

		if (path.path != null) {
			return path.path.calcLeafType
		} else {
			return path.field.returnType.type
		}
	}
	
		/**
	 * Normalizes the method name.
	 * 
	 * @param simpleName
	 * @return
	 */
	def static String toPropertyName(String simpleName) {
		if (simpleName == null) {
			return null;
		}
		var String tempName = null;
		if (isSetter(simpleName)) {
			tempName = StringExtensions.toFirstLower(simpleName.replaceFirst(
					"set", ""));
		} else if (isGetter(simpleName)) {
			if (simpleName.startsWith("get")) {
				tempName = StringExtensions.toFirstLower(simpleName
						.replaceFirst("get", ""));
			} else {
				tempName = StringExtensions.toFirstLower(simpleName
						.replaceFirst("is", ""));
			}
		}
		return tempName;
	}

	def static boolean isGetter(String simpleName) {
		if (simpleName == null) {
			return false;
		}
		return simpleName.startsWith("get") || simpleName.startsWith("is");
	}

	def static boolean isSetter(String simpleName) {
		return simpleName != null && simpleName.startsWith("set");
	}
}