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RESTful Java Client - help needed

 
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netguyhere



Joined: 01 Jul 2010
Posts: 2
PostPosted: Sun Oct 03, 2010 6:38 am    Post subject: RESTful Java Client - help needed Reply with quote
Hi,
I am trying to learn about RESTful Java client.

I have created a mysql db in my laptop and with netbeans 6.9 I am able to create a RESTful API with which I can get/put data on the web-browser.

Now,I want to use the RESTful Java Client generated by NEtbeans to insert xml data into the database.




The Netbeans generated code for the client (tweetclinet) is:

Code:
public class tweetclient {
    private WebResource webResource;
    private Client client;
    private static final String BASE_URI = "http://localhost:9050/tweetsaver/resources";

    public tweetclient() {
        com.sun.jersey.api.client.config.ClientConfig config = new com.sun.jersey.api.client.config.DefaultClientConfig();
        client = Client.create(config);
        webResource = client.resource(BASE_URI).path("tweetss");

    }

    public ClientResponse post_XML(Object requestEntity) throws UniformInterfaceException {
        //webResource.type("application/xml");
        webResource.header("Content-Type", "application/xml");
        webResource.accept("application/xml");
        return webResource.type(javax.ws.rs.core.MediaType.TEXT_XML).post(ClientResponse.class, requestEntity);
    }

    public ClientResponse post_JSON(Object requestEntity) throws UniformInterfaceException {
        return webResource.type(javax.ws.rs.core.MediaType.APPLICATION_JSON).post(ClientResponse.class, requestEntity);
    }

    public <T> T get_XML(Class<T> responseType) throws UniformInterfaceException {
        return webResource.accept(javax.ws.rs.core.MediaType.APPLICATION_XML).get(responseType);
    }

    public <T> T get_JSON(Class<T> responseType) throws UniformInterfaceException {
        return webResource.accept(javax.ws.rs.core.MediaType.APPLICATION_JSON).get(responseType);
    }

    public void close() {
        getClient().destroy();
    }

    /**
     * @return the client
     */
    public Client getClient() {
        return client;
    }

    /**
     * @param client the client to set
     */
    public void setClient(Client client) {
        this.client = client;
    }

}


All the converter and entity classes are generated by netbeans:

TweetsConverter.java
------------------------

Code:

@XmlRootElement(name = "tweets")
public class TweetsConverter {
    private Tweets entity;
    private URI uri;
    private int expandLevel;
 
    /** Creates a new instance of TweetsConverter */
    public TweetsConverter() {
        entity = new Tweets();
    }

    /**
     * Creates a new instance of TweetsConverter.
     *
     * @param entity associated entity
     * @param uri associated uri
     * @param expandLevel indicates the number of levels the entity graph should be expanded@param isUriExtendable indicates whether the uri can be extended
     */
    public TweetsConverter(Tweets entity, URI uri, int expandLevel, boolean isUriExtendable) {
        this.entity = entity;
        this.uri = (isUriExtendable) ? UriBuilder.fromUri(uri).path(entity.getId() + "/").build() : uri;
        this.expandLevel = expandLevel;
    }

    /**
     * Creates a new instance of TweetsConverter.
     *
     * @param entity associated entity
     * @param uri associated uri
     * @param expandLevel indicates the number of levels the entity graph should be expanded
     */
    public TweetsConverter(Tweets entity, URI uri, int expandLevel) {
        this(entity, uri, expandLevel, false);
    }

    /**
     * Getter for user.
     *
     * @return value for user
     */
    @XmlElement
    public String getUser() {
        return (expandLevel > 0) ? entity.getUser() : null;
    }

    /**
     * Setter for user.
     *
     * @param value the value to set
     */
    public void setUser(String value) {
        entity.setUser(value);
    }

    /**
     * Getter for post.
     *
     * @return value for post
     */
    @XmlElement
    public String getPost() {
        return (expandLevel > 0) ? entity.getPost() : null;
    }

    /**
     * Setter for post.
     *
     * @param value the value to set
     */
    public void setPost(String value) {
        entity.setPost(value);
    }

    /**
     * Getter for id.
     *
     * @return value for id
     */
    @XmlElement
    public Integer getId() {
        return (expandLevel > 0) ? entity.getId() : null;
    }

    /**
     * Setter for id.
     *
     * @param value the value to set
     */
    public void setId(Integer value) {
        entity.setId(value);
    }

    /**
     * Getter for ts.
     *
     * @return value for ts
     */
    @XmlElement
    public Date getTs() {
        return (expandLevel > 0) ? entity.getTs() : null;
    }

    /**
     * Setter for ts.
     *
     * @param value the value to set
     */
    public void setTs(Date value) {
        entity.setTs(value);
    }

    /**
     * Returns the URI associated with this converter.
     *
     * @return the uri
     */
    @XmlAttribute
    public URI getUri() {
        return uri;
    }

    /**
     * Sets the URI for this reference converter.
     *
     */
    public void setUri(URI uri) {
        this.uri = uri;
    }

    /**
     * Returns the Tweets entity.
     *
     * @return an entity
     */
    @XmlTransient
    public Tweets getEntity() {
        if (entity.getId() == null) {
            TweetsConverter converter = UriResolver.getInstance().resolve(TweetsConverter.class, uri);
            if (converter != null) {
                entity = converter.getEntity();
            }
        }
        return entity;
    }

    /**
     * Returns the resolved Tweets entity.
     *
     * @return an resolved entity
     */
    public Tweets resolveEntity(EntityManager em) {
        return entity;
    }
}


I want to do something like:


Code:
public class TweetSaver {
    public static void main(String[] args) throws ParseException {
        tweetclient client = new tweetclient();

        Tweets twt = new Tweets();
        twt.setUser("JavaClient");
        twt.setPost("this post if from Java Client");
        DateFormat df = new SimpleDateFormat("yyyy-mm-dd");
        Date dt = df.parse("2010-10-02");
        twt.setTs(dt);
       
       
       

        client.post_XML(twt);
       
    }

}



When I run this I get the error,
Exception in thread "main" com.sun.jersey.api.client.ClientHandlerException: com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class com.tweet.Tweets, and MIME media type, application/xml, was not found
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:128)
at com.sun.jersey.api.client.Client.handle(Client.java:457)


Attaching Tweets class code as well.
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gliesian



Joined: 21 Oct 2008
Posts: 50
PostPosted: Sun Apr 14, 2013 1:41 pm    Post subject: Answer for this... Reply with quote
Hi, did you ever get an answer for this question?
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Edson Richter
Posted via mailing list.
PostPosted: Sun Apr 14, 2013 11:23 pm    Post subject: RESTful Java Client - help needed Reply with quote
There is a question? I've never received it...

Regards,

Edson

Em 14/04/2013 10:41, gliesian escreveu:
Quote:
Hi, did you ever get an answer for this question?





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