jaroslav@813: /**
jaroslav@813:  * Back 2 Browser Bytecode Translator
jaroslav@813:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@813:  *
jaroslav@813:  * This program is free software: you can redistribute it and/or modify
jaroslav@813:  * it under the terms of the GNU General Public License as published by
jaroslav@813:  * the Free Software Foundation, version 2 of the License.
jaroslav@813:  *
jaroslav@813:  * This program is distributed in the hope that it will be useful,
jaroslav@813:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@813:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@813:  * GNU General Public License for more details.
jaroslav@813:  *
jaroslav@813:  * You should have received a copy of the GNU General Public License
jaroslav@813:  * along with this program. Look for COPYING file in the top folder.
jaroslav@813:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@813:  */
jaroslav@813: package org.apidesign.bck2brwsr.htmlpage;
jaroslav@813: 
jaroslav@813: import org.apidesign.bck2brwsr.core.JavaScriptBody;
jaroslav@813: 
jaroslav@813: /**
jaroslav@813:  *
jaroslav@813:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@813:  */
jaroslav@813: public final class ConvertTypes {
jaroslav@813:     ConvertTypes() {
jaroslav@813:     }
jaroslav@813:     
jaroslav@813:     public static String toString(Object object, String property) {
jaroslav@813:         Object ret = getProperty(object, property);
jaroslav@813:         return ret == null ? null : ret.toString();
jaroslav@813:     }
jaroslav@813: 
jaroslav@813:     public static double toDouble(Object object, String property) {
jaroslav@813:         Object ret = getProperty(object, property);
jaroslav@813:         return ret instanceof Number ? ((Number)ret).doubleValue() : Double.NaN;
jaroslav@813:     }
jaroslav@813: 
jaroslav@813:     public static int toInt(Object object, String property) {
jaroslav@813:         Object ret = getProperty(object, property);
jaroslav@813:         return ret instanceof Number ? ((Number)ret).intValue() : Integer.MIN_VALUE;
jaroslav@813:     }
jaroslav@906: 
jaroslav@906:     public static <T> T toModel(Class<T> modelClass, Object object, String property) {
jaroslav@906:         Object ret = getProperty(object, property);
jaroslav@906:         if (ret == null || modelClass.isInstance(ret)) {
jaroslav@906:             return modelClass.cast(ret);
jaroslav@906:         }
jaroslav@906:         throw new IllegalStateException("Value " + ret + " is not of type " + modelClass);
jaroslav@906:     }
jaroslav@813:     
jaroslav@920:     public static String toJSON(Object value) {
jaroslav@920:         if (value == null) {
jaroslav@920:             return "null";
jaroslav@920:         }
jaroslav@920:         if (value instanceof String) {
jaroslav@920:             return '"' + 
jaroslav@920:                 ((String)value).
jaroslav@920:                     replace("\"", "\\\"").
jaroslav@920:                     replace("\n", "\\n").
jaroslav@920:                     replace("\r", "\\r").
jaroslav@920:                     replace("\t", "\\t")
jaroslav@920:                 + '"';
jaroslav@920:         }
jaroslav@920:         return value.toString();
jaroslav@920:     }
jaroslav@920:     
jaroslav@813:     @JavaScriptBody(args = { "object", "property" },
jaroslav@879:         body = "if (property === null) return object;\n"
jaroslav@879:         + "var p = object[property]; return p ? p : null;"
jaroslav@813:     )
jaroslav@813:     private static Object getProperty(Object object, String property) {
jaroslav@813:         return null;
jaroslav@813:     }
jaroslav@813: }