be.iminds.iot.dianne.jsonrpc.DianneJSONRPCServlet.java Source code

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Here is the source code for be.iminds.iot.dianne.jsonrpc.DianneJSONRPCServlet.java

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/*******************************************************************************
 * DIANNE  - Framework for distributed artificial neural networks
 * Copyright (C) 2015  iMinds - IBCN - UGent
 *
 * This file is part of DIANNE.
 *
 * DIANNE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     Tim Verbelen, Steven Bohez
 *******************************************************************************/
package be.iminds.iot.dianne.jsonrpc;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;

@Component(service = { javax.servlet.Servlet.class }, property = { "alias:String=/dianne/jsonrpc",
        "osgi.http.whiteboard.servlet.pattern=/dianne/jsonrpc", "aiolos.proxy=false" }, immediate = true)
public class DianneJSONRPCServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    private JSONRPCRequestHandler handler;

    @Reference
    void setRequestHandler(JSONRPCRequestHandler h) {
        this.handler = h;
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("application/json");

        try (JsonReader reader = new JsonReader(req.getReader());
                JsonWriter writer = new JsonWriter(resp.getWriter())) {

            handler.handleRequest(reader, writer);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}