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