Oops - For XML the serialization is
public void serialize(OutputStream stream) {
try {
final XmlMapper mapper = new XmlMapper();
mapper.writeValue(stream, this);
} catch (Exception ex) {
ex.printStackTrace();
}
}
On Apr 1, 2014, at 1:49 PM, Ralph Goers <[email protected]> wrote:
> I just did this the other day for both XML and JSON.
>
> For XML I did:
>
> public static TransactionRequest deserialize(String xmlFile) {
> try {
> XmlMapper mapper = new XmlMapper();
> InputStream stream = new FileInputStream(xmlFile);
> return mapper.readValue(stream, TransactionRequest.class);
> } catch (Exception ex) {
> ex.printStackTrace();
> }
> return null;
> }
> public static TransactionRequest deserialize(String xmlFile) {
> try {
> XmlMapper mapper = new XmlMapper();
> InputStream stream = new FileInputStream(xmlFile);
> return mapper.readValue(stream, TransactionRequest.class);
> } catch (Exception ex) {
> ex.printStackTrace();
> }
> return null;
> }
>
> Where needed I used things like:
>
> @JacksonXmlProperty(localName = "return")
> private PostSale creditCardReturn;
>
> and
>
> @JacksonXmlProperty(isAttribute = true)
>
> For JSON I did
>
> public static JSONRequest deserialize(String json)
> {
> try
> {
> ObjectMapper mapper = new ObjectMapper();
> return mapper.readValue(json, JSONRequest.class);
> }
> catch (Exception ex)
> {
> ex.printStackTrace();
> }
> return null;
> }
>
> and
>
> public String serialize()
> {
> try
> {
> final ObjectMapper mapper = new ObjectMapper();
> return mapper.writeValueAsString(this);
> }
> catch (Exception ex)
> {
> ex.printStackTrace();
> }
> return null;
> }
>
> HTH,
>
> Ralph
>
>
> On Apr 1, 2014, at 1:05 PM, Gary Gregory <[email protected]> wrote:
>
>> Well... so much for Jackson making my life easy. Jackson says it "supports"
>> JAXB annotations but that must be only for the simplest cases. Jackson does
>> not work with the JAXB annotations I used on Log4jLogEvents. This suppose
>> this is not surprising. Back to the drawing board...
>>
>> Gary
>>
>>
>> On Tue, Apr 1, 2014 at 12:05 PM, Gary Gregory <[email protected]> wrote:
>> All good ideas, thank you. The JSON API I know best is GSON, which let's you
>> listen to objects opening and closing. Maybe Jackson has something like
>> that... I'll have to dig in.
>>
>> Gary
>>
>>
>> On Tue, Apr 1, 2014 at 11:14 AM, Ralph Goers <[email protected]>
>> wrote:
>> So you are hacking the stream before passing it to the unmarshalling
>> framework? Then you will have to keep track of the ‘{‘ and ‘}’ characters
>> yourself, either with the stack Matt suggests or as a counter.
>>
>> Ralph
>>
>> On Apr 1, 2014, at 8:07 AM, Matt Sicker <[email protected]> wrote:
>>
>>> Keep a stack of {'s and pop them when you get a }. Like a deterministic
>>> pushdown automaton.
>>>
>>>
>>> On 1 April 2014 07:45, Gary Gregory <[email protected]> wrote:
>>> I have a local patch for LOG4J2-583 to have the Log4j TCP and UDP socket
>>> servers unmarhsal XML log events.
>>>
>>> This is "easy" for XML because when you have a stream of bytes and you know
>>> its encoding, you can look for the end of an event by looking for its
>>> closing tag: </Event>. Right now, my XML processing code, looks for the end
>>> tag and feeds JAXB a substring from the buffer. Easy. Done.
>>>
>>> Not so much with JSON. You cannot use the same hack, there is no end tag.
>>> All you have is an "end of object" closing bracket "}" which looks the same
>>> as the closing marker for all other objects.
>>>
>>> So it looks like I would need to hook in a little deeper into a JSON
>>> unmarshalling framework to extract each JSON log events as I see them.
>>>
>>> Any thoughts here?
>>>
>>> Gary
>>>
>>> --
>>> E-Mail: [email protected] | [email protected]
>>> Java Persistence with Hibernate, Second Edition
>>> JUnit in Action, Second Edition
>>> Spring Batch in Action
>>> Blog: http://garygregory.wordpress.com
>>> Home: http://garygregory.com/
>>> Tweet! http://twitter.com/GaryGregory
>>>
>>>
>>>
>>> --
>>> Matt Sicker <[email protected]>
>>
>>
>>
>>
>> --
>> E-Mail: [email protected] | [email protected]
>> Java Persistence with Hibernate, Second Edition
>> JUnit in Action, Second Edition
>> Spring Batch in Action
>> Blog: http://garygregory.wordpress.com
>> Home: http://garygregory.com/
>> Tweet! http://twitter.com/GaryGregory
>>
>>
>>
>> --
>> E-Mail: [email protected] | [email protected]
>> Java Persistence with Hibernate, Second Edition
>> JUnit in Action, Second Edition
>> Spring Batch in Action
>> Blog: http://garygregory.wordpress.com
>> Home: http://garygregory.com/
>> Tweet! http://twitter.com/GaryGregory
>
