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| |
| SerializerGroups and ParserGroups |
| |
| <p> |
| Above the serializers and parsers are the {@link oaj.serializer.SerializerGroup} and |
| {@link oaj.parser.ParserGroup} classes. |
| These classes allow serializers and parsers to be retrieved by W3C-compliant HTTP <c>Accept</c> |
| and <c>Content-Type</c> values... |
| </p> |
| <p class='bpcode w800'> |
| <jc>// Construct a new serializer group with configuration parameters that get applied to all serializers.</jc> |
| SerializerGroup sg = SerializerGroup.<jsm>create</jsm>() |
| .append(JsonSerializer.<jk>class</jk>, UrlEncodingSerializer.<jk>class</jk>); |
| .ws <jc>// or .useWhitespace(true)</jc> |
| .pojoSwaps(TemporalCalendarSwap.IsoLocalDateTime.<jk>class</jk>) |
| .build(); |
| |
| <jc>// Find the appropriate serializer by Accept type and serialize our POJO to the specified writer.</jc> |
| sg.getSerializer(<js>"text/invalid, text/json;q=0.8, text/*;q:0.6, *\/*;q=0.0"</js>) |
| .serialize(myPersonObject, myWriter); |
| |
| <jc>// Construct a new parser group with configuration parameters that get applied to all parsers.</jc> |
| ParserGroup pg = ParserGroup.<jsm>create</jsm>() |
| .append(JsonSerializer.<jk>class</jk>, UrlEncodingSerializer.<jk>class</jk>); |
| .pojoSwaps(CalendarSwap.IsoLocalDateTime.<jk>class</jk>) |
| .build(); |
| |
| Person p = pg.getParser(<js>"text/json"</js>).parse(myReader, Person.<jk>class</jk>); |
| </p> |
| <p> |
| The REST servlet API builds upon the <c>SerializerGroup</c> and <c>ParserGroup</c> classes |
| to provide annotated REST servlets that automatically negotiate the HTTP media types and allow the developer |
| to work with requests and responses as POJOs. |
| </p> |