org.kurento.tutorial.magicmirror.MagicMirrorRest.java Source code

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Here is the source code for org.kurento.tutorial.magicmirror.MagicMirrorRest.java

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/*
 * (C) Copyright 2014 Kurento (http://kurento.org/)
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-2.1.html
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 */
package org.kurento.tutorial.magicmirror;

import java.io.IOException;
import java.io.StringReader;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.stream.JsonReader;

/**
 * Hello World REST Controller (application logic).
 * 
 * @author Boni Garcia (bgarcia@gsyc.es)
 * @since 5.0.0
 */
@RestController
public class MagicMirrorRest {

    private final Logger log = LoggerFactory.getLogger(MagicMirrorRest.class);

    @Autowired
    public ConcurrentHashMap<String, WebSocketSession> kurentoSession;

    @RequestMapping(value = "/message", method = RequestMethod.POST)
    private String processRequest(@RequestBody String bMessage) {

        log.debug("New REST message " + bMessage);

        JsonObject response = createJson(bMessage);
        for (Map.Entry<String, WebSocketSession> element : kurentoSession.entrySet()) {
            try {
                element.getValue().sendMessage(new TextMessage(response.toString()));
            } catch (IOException e) {
                log.error("Exception sending message in processRequest", e);
            }
        }

        return kurentoSession.toString();
    }

    private JsonObject createJson(String bMessage) {

        JsonReader reader = new JsonReader(new StringReader(bMessage));
        reader.setLenient(true);
        JsonObject request = (JsonObject) new JsonParser().parse(reader);

        JsonObject response = new JsonObject();
        response.addProperty("id", "rest");
        response.add("source", request.get("source"));
        response.add("description", request.get("description"));
        response.add("value", request.get("value"));

        return response;
    }
}