LinkedinButton.java

package org.vaadin.oauth;

import org.scribe.builder.api.Api;
import org.scribe.builder.api.LinkedInApi;

public class LinkedinButton extends OAuthButton {

    /**
     * Creates a "Log in with LinkedIn" button that will use the given API
     * key/secret to authenticate the user with LinkedIn, and then call the
     * given callback with {@link User} details.
     * 
     * @param apiKey
     *            API key from the service providing OAuth
     * @param apiSecret
     *            API secret from the service providing OAuth
     * @param authListener
     *            called once the user has been authenticated
     */
    public LinkedinButton(String apiKey, String apiSecret,
            OAuthListener authListener) {
        super("Log in with LinkedIn", apiKey, apiSecret, authListener);
    }

    /**
     * Creates a button with the given caption that will use the given API
     * key/secret to authenticate the user with LinkedIn, and then call the
     * given callback with {@link User} details.
     * 
     * @param caption
     *            button caption
     * @param apiKey
     *            API key from the service providing OAuth
     * @param apiSecret
     *            API secret from the service providing OAuth
     * @param authListener
     *            called once the user has been authenticated
     */
    public LinkedinButton(String caption, String apiKey, String apiSecret,
            OAuthListener authListener) {
        super(caption, apiKey, apiSecret, authListener);
    }

    @Override
    protected String getAuthUrl() {
        requestToken = getService().getRequestToken();
        return getService().getAuthorizationUrl(requestToken);
    }

    @Override
    protected Class<? extends Api> getApi() {
        return LinkedInApi.class;
    }

    @Override
    protected String getVerifierName() {
        return "oauth_verifier";
    }

    @Override
    protected String getJsonDataUrl() {
        return "http://api.linkedin.com/v1/people/~:(id,first-name,last-name,picture-url,public-profile-url)?format=json";
    }

    @Override
    protected Class<? extends User> getUserClass() {
        return LinkedinUser.class;
    }

    public static class LinkedinUser implements User {

        private String firstName;
        private String lastName;
        private String pictureUrl;
        private String id;
        private String publicProfileUrl;
        private String token;
        private String tokenSecret;

        public String getToken() {
            return token;
        }

        public String getTokenSecret() {
            return tokenSecret;
        }

        public String getName() {
            return firstName + " " + lastName;
        }

        public String getScreenName() {
            return publicProfileUrl
                    .substring(publicProfileUrl.lastIndexOf("/") + 1);
        }

        public String getPictureUrl() {
            return pictureUrl;
        }

        public String getId() {
            return id;
        }

        public String getPublicProfileUrl() {
            return publicProfileUrl;
        }

        public String getService() {
            return "linkedin";
        }

        public String getEmail() {
            return null;
        }

    }

}