| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.web.bindery.autobean.shared.impl; |
| |
| import com.google.gwt.thirdparty.json.JSONObject; |
| import com.google.web.bindery.autobean.shared.Splittable; |
| import com.google.web.bindery.autobean.vm.impl.JsonSplittable; |
| |
| import java.text.DateFormat; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| /** |
| * This class has a super-source version with a client-only implementation. |
| */ |
| public class StringQuoter { |
| private static final String ISO8601_PATTERN = "yyyy-MM-dd'T'HH:mm:ss.SSSz"; |
| private static final DateFormat ISO8601 = new SimpleDateFormat(ISO8601_PATTERN, Locale |
| .getDefault()); |
| |
| private static final String RFC2822_PATTERN = "EEE, d MMM yyyy HH:mm:ss Z"; |
| private static final DateFormat RFC2822 = new SimpleDateFormat(RFC2822_PATTERN, Locale |
| .getDefault()); |
| |
| public static Splittable create(boolean value) { |
| return JsonSplittable.create(String.valueOf(value)); |
| } |
| |
| public static Splittable create(double value) { |
| return JsonSplittable.create(String.valueOf(value)); |
| } |
| |
| public static Splittable create(String value) { |
| return JsonSplittable.create(quote(value)); |
| } |
| |
| public static Splittable createIndexed() { |
| return JsonSplittable.createIndexed(); |
| } |
| |
| public static Splittable createSplittable() { |
| return JsonSplittable.create(); |
| } |
| |
| public static Splittable nullValue() { |
| return JsonSplittable.createNull(); |
| } |
| |
| /** |
| * Create a quoted JSON string. |
| */ |
| public static String quote(String raw) { |
| return JSONObject.quote(raw); |
| } |
| |
| public static Splittable split(String payload) { |
| return JsonSplittable.create(payload); |
| } |
| |
| /** |
| * Attempt to parse an ISO-8601 date format. May return {@code null} if the |
| * input cannot be parsed. |
| */ |
| public static Date tryParseDate(String date) { |
| try { |
| return new Date(Long.parseLong(date)); |
| } catch (NumberFormatException ignored) { |
| } |
| if (date.endsWith("Z")) { |
| date = date.substring(0, date.length() - 1) + "+0000"; |
| } |
| try { |
| return ISO8601.parse(date); |
| } catch (ParseException ignored) { |
| } |
| try { |
| return RFC2822.parse(date); |
| } catch (ParseException ignored) { |
| } |
| return null; |
| } |
| } |