| // |
| // ======================================================================== |
| // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.util.ajax; |
| |
| import java.text.DateFormatSymbols; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.TimeZone; |
| |
| import org.eclipse.jetty.util.DateCache; |
| import org.eclipse.jetty.util.ajax.JSON.Output; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| |
| /* ------------------------------------------------------------ */ |
| /** |
| * Convert a {@link Date} to JSON. |
| * If fromJSON is true in the constructor, the JSON generated will |
| * be of the form {class="java.util.Date",value="1/1/1970 12:00 GMT"} |
| * If fromJSON is false, then only the string value of the date is generated. |
| */ |
| public class JSONDateConvertor implements JSON.Convertor |
| { |
| private static final Logger LOG = Log.getLogger(JSONDateConvertor.class); |
| |
| private final boolean _fromJSON; |
| private final DateCache _dateCache; |
| private final SimpleDateFormat _format; |
| |
| public JSONDateConvertor() |
| { |
| this(false); |
| } |
| |
| public JSONDateConvertor(boolean fromJSON) |
| { |
| this(DateCache.DEFAULT_FORMAT,TimeZone.getTimeZone("GMT"),fromJSON); |
| } |
| |
| public JSONDateConvertor(String format,TimeZone zone,boolean fromJSON) |
| { |
| _dateCache=new DateCache(format); |
| _dateCache.setTimeZone(zone); |
| _fromJSON=fromJSON; |
| _format=new SimpleDateFormat(format); |
| _format.setTimeZone(zone); |
| } |
| |
| public JSONDateConvertor(String format, TimeZone zone, boolean fromJSON, Locale locale) |
| { |
| _dateCache = new DateCache(format, locale); |
| _dateCache.setTimeZone(zone); |
| _fromJSON = fromJSON; |
| _format = new SimpleDateFormat(format, new DateFormatSymbols(locale)); |
| _format.setTimeZone(zone); |
| } |
| |
| public Object fromJSON(Map map) |
| { |
| if (!_fromJSON) |
| throw new UnsupportedOperationException(); |
| try |
| { |
| synchronized(_format) |
| { |
| return _format.parseObject((String)map.get("value")); |
| } |
| } |
| catch(Exception e) |
| { |
| LOG.warn(e); |
| } |
| return null; |
| } |
| |
| public void toJSON(Object obj, Output out) |
| { |
| String date = _dateCache.format((Date)obj); |
| if (_fromJSON) |
| { |
| out.addClass(obj.getClass()); |
| out.add("value",date); |
| } |
| else |
| { |
| out.add(date); |
| } |
| } |
| } |