1 Reply Latest reply on Oct 4, 2012 11:30 AM by Zdeněk Obst

    RestEasy Jettison/Jackson customization

    Zdeněk Obst Newbie

      I'm trying to use my objects with JAXB annotations for application/json output with my JAX-RS resource. I'm running on JBoss AS7 7.1.1.Final with RestEasy (included within AS). The issue is that I would like to customize my JSON output. I must note that I don't care if I will use Jettison or Jackson, but I was able only make Jettison work (deploy application) without errors. I also would like to stick only with JAXB annotations on my objects if possible.

       

      1) I want to omit "@" within XmlAttribute annotated fields. I found out property how to do it with Jettison, but I don't know how to configure it on JBoss AS7. Didn't find any working ContextResolver or any other example.

       

      2) I would like to have "normal" JSON arrays, e.g.

       

      @XmlRootElement(name = "root")
      @XmlAccessorType(XmlAccessType.FIELD)
      public class Root { 
          @XmlElementRef(type = Entry.class, required = false)
          // no difference with @XmlElement
          private Set<Entry> entries;
      }
      

       

      serializes into

      {"entries":
        {"entry":[{...},{...},{...}]}
      }
      

       

      and I would expect one of those:

      {"entries":
        [
         {"entry":{...}},
         {"entry":{...}},
         {"entry":{...}}      
        ]
      }
      
      

      or (omitting XmlRootElement)

      {"entries":
        [{...}, {...}]]
      }
      

       

      3) As I noted, I don't care what provider (Jettison/Jackson) will I use but it is hard to find working example how to correctly set maven dependencies for application to be deployable without errors. So far I'm using:

       

          <dependency>
              <groupId>org.jboss.resteasy</groupId>
              <artifactId>resteasy-jaxrs</artifactId>
              <version>${resteasyVersion}</version>
              <scope>provided</scope>
          </dependency>
          <dependency>
              <groupId>org.jboss.resteasy</groupId>
              <artifactId>resteasy-jaxb-provider</artifactId>
              <version>${resteasyVersion}</version>
              <scope>provided</scope>
          </dependency>
          <dependency>
              <groupId>org.jboss.resteasy</groupId>
              <artifactId>resteasy-jettison-provider</artifactId>
              <version>${resteasyVersion}</version>
              <!--<scope>provided</scope>-->
              <exclusions>
                  <exclusion>
                      <groupId>javax.xml.bind</groupId>
                      <artifactId>jaxb-api</artifactId>
                  </exclusion>
                  <exclusion>
                      <groupId>com.sun.xml.bind</groupId>
                      <artifactId>jaxb-impl</artifactId>
                  </exclusion>
                  <exclusion>
                      <groupId>javax.xml.stream</groupId>
                      <artifactId>stax-api</artifactId>
                  </exclusion>
              </exclusions>
          </dependency>
      

       

      Thanks for all answers

        • 1. Re: RestEasy Jettison/Jackson customization
          Zdeněk Obst Newbie

          So far I managed to make Jackson working and use its provider-specific annotations (@JsonProperty ... and so) which solved my problem. I tried to find only JAXB solution but I can accept also this. Btw my dependencies

           

                  <dependency>
                      <groupId>org.jboss.resteasy</groupId>
                      <artifactId>resteasy-jaxrs</artifactId>
                      <version>${resteasyVersion}</version>
                      <scope>provided</scope>
                  </dependency>
                  <dependency>
                      <groupId>org.jboss.resteasy</groupId>
                      <artifactId>resteasy-jaxb-provider</artifactId>
                      <version>${resteasyVersion}</version>
                  </dependency>
                  <dependency>
                      <groupId>org.jboss.resteasy</groupId>
                      <artifactId>resteasy-jackson-provider</artifactId>
                      <version>${resteasyVersion}</version>
                  </dependency>