blob: 6c5f1ef132a3833c53b506cb15f3b0b3c57d6547 [file] [log] [blame]
<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you 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.
-->
<document>
<properties>
<title>JSON Component for GSON</title>
<author email="gk@apache.org">Georg Kallidis</author>
</properties>
<body>
<section name="Overview">
<p>The intent of this component is to provide a configurable and customized integration of JSON De-/Seriallizers using <a href="https://github.com/google/gson/">GSON</a>, Jackson 1 and Jackson 2 APIs into Avalon/Turbine.
It is written for use in Turbine but it can be used in any container compatible
with Avalon's ECM container. There are three implementations
<ul>
<li>GSONBuilderService and</li>
<li>Jackson2MapperService</li>
<li>JacksonMapperService</li>
</ul>
All Services provide basic serialization and deserialization functions for applications.
</p>
</section>
<section name="JSON Service Component with GSON API">
<subsection name="Role Configuration">
<source><![CDATA[
<role
name="org.apache.fulcrum.json.JsonService"
shorthand="json"
default-class="org.apache.fulcrum.json.gson.GSONBuilderService"/>
]]></source>
</subsection>
<subsection name="Component Configuration">
<table>
<tr>
<th>Item</th>
<th>Datatype</th>
<th>Cardinality</th>
<th>Description</th>
</tr>
<tr>
<td>globalAdapters</td>
<td>Complex</td>
<td>[0|1]</td>
<td>
If not set no adapter is set. Otherwise provide for each sub element <code>adapter</code> the class name of the adapter and set the attribute <code>forClass</code> to the class name the adapter should be applied. See the configuration example below.
</td>
</tr>
<tr>
<td>dateFormat</td>
<td>String</td>
<td>[0|*]</td>
<td>
If set changes the date format. Provided string should be in a Format acceptable to the class <code>java.text.SimpleDateFormat.SimpleDateFormat(String)</code>. The default value is
<code>MM/dd/yyyy</code>.
</td>
</tr>
</table>
</subsection>
<subsection name="Component Configuration Example">
<source><![CDATA[
<json>
<dateFormat>MM/dd/yyyy</dateFormat>
<globalAdapters>>
<adapter forClass="x.y.z.Class">a.b.c.d.AdapterForClassXYZ</adapter-->
</globalAdapters>
</json>
]]></source>
</subsection>
<subsection name="Usage">
<p>
You get a JSON service from the service like this:
</p>
<source><![CDATA[
JsonService jsonService = (JsonService)TurbineServices
.getInstance().getService(JsonService.ROLE);
]]></source>
<p>
</p>
</subsection>
</section>
</body>
</document>