org.fuzzydb.samples.social.ConnectedToHandlerInterceptor.java Source code

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Here is the source code for org.fuzzydb.samples.social.ConnectedToHandlerInterceptor.java

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/*
 * Copyright 2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.fuzzydb.samples.social;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.social.connect.ConnectionRepository;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

public class ConnectedToHandlerInterceptor extends HandlerInterceptorAdapter {

    private ConnectionRepository connectionRepository;

    public ConnectedToHandlerInterceptor(ConnectionRepository connectionRepository) {
        this.connectionRepository = connectionRepository;
    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        if (request.getUserPrincipal() != null) {
            request.setAttribute("connectedToTwitter", connectionRepository.findConnections("twitter").size() > 0);
            request.setAttribute("connectedToFacebook",
                    connectionRepository.findConnections("facebook").size() > 0);
        }
        return true;
    }

}