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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 2011 OpenConcerto, by ILM Informatique. All rights reserved.
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*
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* The contents of this file are subject to the terms of the GNU General Public License Version 3
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* only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
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* copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* When distributing the software, include this License Header Notice in each file.
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*/
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package org.openconcerto.utils.io;
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import java.awt.Color;
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import java.sql.Date;
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import java.sql.Timestamp;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import javax.xml.bind.DatatypeConverter;
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import org.openconcerto.utils.NumberUtils;
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import net.minidev.json.JSONArray;
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import net.minidev.json.JSONObject;
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public class JSONConverter {
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final static Pattern pattern = Pattern.compile("d{4}-[01]d-[0-3]dT[0-2]d:[0-5]d:[0-5]d.d+([+-][0-2]d:[0-5]d|Z)");
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public static Object getJSON(Object param) {
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Object result = null;
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if (param != null) {
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if (param instanceof JSONAble) {
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result = ((JSONAble) param).toJSON();
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} else if (param instanceof Timestamp) {
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final SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.S'Z'");
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result = df.format((Timestamp) param);
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} else if (param instanceof Class<?>) {
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result = ((Class<?>) param).getName();
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} else if (param instanceof Iterable) {
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final Iterable<?> tmp = (Iterable<?>) param;
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final JSONArray jsonArray = new JSONArray();
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for (Object o : tmp) {
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jsonArray.add(getJSON(o));
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}
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result = jsonArray;
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} else if (param instanceof Color) {
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if (param != null) {
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final Color paramColor = (Color) param;
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final JSONObject jsonColor = new JSONObject();
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jsonColor.put("r", paramColor.getRed());
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jsonColor.put("g", paramColor.getGreen());
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jsonColor.put("b", paramColor.getBlue());
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result = jsonColor;
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}
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} else {
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result = param;
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}
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}
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return result;
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}
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public static Object getObjectFromJSON(final Object o, final Class<?> type) {
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Object result = null;
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if (o != null && !o.equals("null")) {
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if (type == Integer.class) {
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if (!o.getClass().isAssignableFrom(Long.class)) {
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throw new IllegalArgumentException("object (" + o.getClass().getName() + ") is not assignable for '" + type + "'");
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} else {
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try {
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result = NumberUtils.ensureInt((Long) o);
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} catch (IllegalArgumentException ex) {
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throw new IllegalArgumentException("object (" + o.getClass().getName() + ") is not assignable for '" + type + "', " + ex.getMessage());
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}
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}
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} else if (type == Date.class) {
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if (!o.getClass().isAssignableFrom(String.class)) {
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throw new IllegalArgumentException("object (" + o.getClass().getName() + ") is not assignable for '" + type + "'");
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}
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final String sparam = (String) o;
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final Matcher matcher = pattern.matcher(sparam);
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if (matcher.find()) {
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final Calendar c = DatatypeConverter.parseDateTime(sparam);
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result = c.getTime();
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} else {
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throw new IllegalArgumentException("object (" + o.getClass().getName() + ") is not assignable for '" + type + "', the format is not valid");
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}
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} else {
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if (!o.getClass().isAssignableFrom(type)) {
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throw new IllegalArgumentException("object (" + o.getClass().getName() + ") is not assignable for '" + type + "'");
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}
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result = o;
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}
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}
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return result;
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}
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public static Object getParameterFromJSON(final JSONObject json, final String key, final Class<?> type) {
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return getParameterFromJSON(json, key, type, null);
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}
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public static Object getParameterFromJSON(final JSONObject json, final String key, final Class<?> type, Object defaultValue) {
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Object o = defaultValue;
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if (json.containsKey(key)) {
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o = json.get(key);
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if (o == null || o.equals("null")) {
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o = null;
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} else {
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if (type == Integer.class) {
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if (!o.getClass().isAssignableFrom(Long.class)) {
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throw new IllegalArgumentException("value for '" + key + "' is invalid");
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} else {
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try {
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o = NumberUtils.ensureInt((Long) o);
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} catch (IllegalArgumentException ex) {
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throw new IllegalArgumentException("value for '" + key + "' is invalid, " + ex.getMessage());
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}
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}
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} else {
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if (!o.getClass().isAssignableFrom(type)) {
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throw new IllegalArgumentException("value for '" + key + "' is invalid");
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}
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}
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}
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}
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return o;
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}
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// TODO move to another class
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public static boolean listInstanceOf(Object object, Class<?> c) {
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if (object instanceof List<?>) {
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final List<?> list = (List<?>) object;
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final int listSize = list.size();
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for (int i = 0; i < listSize; i++) {
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if (!c.isInstance(list.get(i))) {
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return false;
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}
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}
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} else {
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return false;
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}
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return true;
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}
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}
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