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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.
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*
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* Oracle and Java are registered trademarks of Oracle and/or its affiliates.
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* Other names may be trademarks of their respective owners.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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*
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* Contributor(s):
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*
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.
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*
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* If you wish your version of this file to be governed by only the CDDL
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* or only the GPL Version 2, indicate your decision by adding
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* "[Contributor] elects to include this software in this distribution
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* under the [CDDL or GPL Version 2] license." If you do not indicate a
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* single choice of license, a recipient has the option to distribute
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* Version 2 license, then the option applies only if the new code is
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* made subject to such option by the copyright holder.
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*/
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package org.netbeans.html.ko4j;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import net.java.html.js.JavaScriptBody;
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import org.apidesign.html.json.spi.JSONCall;
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import org.apidesign.html.json.spi.Transfer;
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import org.apidesign.html.json.spi.WSTransfer;
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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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final class LoadJSON implements Transfer, WSTransfer<LoadWS> {
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private LoadJSON() {}
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@Override
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public void extract(Object obj, String[] props, Object[] values) {
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extractJSON(obj, props, values);
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}
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@Override
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public void loadJSON(final JSONCall call) {
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if (call.isJSONP()) {
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String me = createJSONP(call);
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loadJSONP(call.composeURL(me), me);
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} else {
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String data = null;
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if (call.isDoOutput()) {
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try {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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call.writeData(bos);
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data = new String(bos.toByteArray(), "UTF-8");
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} catch (IOException ex) {
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call.notifyError(ex);
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}
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}
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loadJSON(call.composeURL(null), call, call.getMethod(), data);
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}
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}
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@Override
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public Object toJSON(InputStream is) throws IOException {
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StringBuilder sb = new StringBuilder();
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InputStreamReader r = new InputStreamReader(is);
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for (;;) {
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int ch = r.read();
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if (ch == -1) {
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break;
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}
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sb.append((char)ch);
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}
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return parse(sb.toString());
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}
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@Override
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public LoadWS open(String url, JSONCall callback) {
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return new LoadWS(callback, url);
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}
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@Override
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public void send(LoadWS socket, JSONCall data) {
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socket.send(data);
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}
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@Override
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public void close(LoadWS socket) {
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socket.close();
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}
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//
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// implementations
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//
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@JavaScriptBody(args = {"object", "property"},
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body
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= "if (property === null) return object;\n"
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+ "if (object === null) return null;\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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static String createJSONP(JSONCall whenDone) {
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int h = whenDone.hashCode();
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String name;
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for (;;) {
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name = "jsonp" + Integer.toHexString(h);
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if (defineIfUnused(name, whenDone)) {
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return name;
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}
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h++;
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}
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}
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@JavaScriptBody(args = {"name", "done"}, javacall = true, body
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= "if (window[name]) return false;\n "
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+ "window[name] = function(data) {\n "
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+ " delete window[name];\n"
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+ " var el = window.document.getElementById(name);\n"
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+ " el.parentNode.removeChild(el);\n"
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+ " done.@org.apidesign.html.json.spi.JSONCall::notifySuccess(Ljava/lang/Object;)(data);\n"
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+ "};\n"
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+ "return true;\n"
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)
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private static boolean defineIfUnused(String name, JSONCall done) {
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return true;
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}
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@JavaScriptBody(args = {"s"}, body = "return eval('(' + s + ')');")
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static Object parse(String s) {
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return s;
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}
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@JavaScriptBody(args = {"url", "done", "method", "data"}, javacall = true, body = ""
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+ "var request = new XMLHttpRequest();\n"
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+ "if (!method) method = 'GET';\n"
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+ "request.open(method, url, true);\n"
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+ "request.setRequestHeader('Content-Type', 'application/json; charset=utf-8');\n"
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+ "request.onreadystatechange = function() {\n"
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+ " if (this.readyState!==4) return;\n"
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+ " try {\n"
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+ " var r = this.response;\n"
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+ " try { r = eval('(' + this.response + ')'); } catch (ignore) { }"
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+ " done.@org.apidesign.html.json.spi.JSONCall::notifySuccess(Ljava/lang/Object;)(r);\n"
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+ " } catch (error) {;\n"
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+ " @org.netbeans.html.ko4j.LoadJSON::notifyError(Ljava/lang/Object;Ljava/lang/Object;)(done, this.response);\n"
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+ " }\n"
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+ "};\n"
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+ "request.onerror = function (e) {console.log('eeeor:' + Object.getOwnPropertyNames(e));\n"
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+ " @org.netbeans.html.ko4j.LoadJSON::notifyError(Ljava/lang/Object;Ljava/lang/Object;)(done, e);\n"
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+ "}\n"
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+ "if (data) request.send(data);"
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+ "else request.send();"
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)
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static void loadJSON(
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String url, JSONCall done, String method, String data
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) {
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}
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static void notifyError(Object done, Object msg) {
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((JSONCall)done).notifyError(new Exception(msg.toString()));
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}
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@JavaScriptBody(args = {"url", "jsonp"}, body
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= "var scrpt = window.document.createElement('script');\n "
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+ "scrpt.setAttribute('src', url);\n "
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+ "scrpt.setAttribute('id', jsonp);\n "
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+ "scrpt.setAttribute('type', 'text/javascript');\n "
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+ "var body = document.getElementsByTagName('body')[0];\n "
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+ "body.appendChild(scrpt);\n"
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)
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static void loadJSONP(String url, String jsonp) {
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}
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static void extractJSON(Object jsonObject, String[] props, Object[] values) {
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for (int i = 0; i < props.length; i++) {
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values[i] = getProperty(jsonObject, props[i]);
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}
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}
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}
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