angularBeans.remote.OneWayEndPoint.java Source code

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Here is the source code for angularBeans.remote.OneWayEndPoint.java

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/*
 * AngularBeans, CDI-AngularJS bridge 
 *
 * Copyright (c) 2014, Bessem Hmidi. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * for more details.
 *
 */

/**
 @author Bessem Hmidi
 */
package angularBeans.remote;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.Serializable;

import javax.enterprise.event.Event;
import javax.inject.Inject;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import angularBeans.context.BeanLocator;
import angularBeans.context.NGSessionScopeContext;
import angularBeans.util.AngularBeansUtil;

import com.google.gson.JsonObject;

@WebServlet(asyncSupported = false, urlPatterns = "/http/invoke/*")
public class OneWayEndPoint extends HttpServlet implements Serializable {

    @Inject
    InvocationHandler remoteInvoker;

    @Inject
    BeanLocator locator;

    @Inject
    AngularBeansUtil util;

    @Inject
    @DataReceivedEvent
    private Event<DataReceived> receiveEvents;

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write(process(req).toString());
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write(process(req).toString());
    }

    @Override
    protected void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write(process(req).toString());
    }

    @Override
    protected void doDelete(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write(process(req).toString());
    }

    private Object process(HttpServletRequest request) {

        String fullPath = request.getRequestURI();
        fullPath = (fullPath.substring(fullPath.indexOf("/service/") + 9));

        String parts[] = fullPath.split("/");

        String beanName = parts[0];
        String method = parts[1];

        String params = request.getParameter("params");

        if (request.getMethod().equals("POST")) {
            try {
                StringBuilder buffer = new StringBuilder();
                BufferedReader reader;

                reader = request.getReader();

                String line;

                while ((line = reader.readLine()) != null) {
                    buffer.append(line);
                }

                params = buffer.toString();
                // System.out.println(params);
            } catch (Exception e) {
                // TODO: handle exception
            }
        }

        JsonObject paramsObj = util.parse(params);

        String UID = (paramsObj.get("sessionUID")).getAsString();

        NGSessionScopeContext.setCurrentContext(UID);

        receiveEvents.fire(new OneWayDataReceivedEvent(paramsObj));

        Object result = remoteInvoker.invoke(locator.lookup(beanName, UID), method, paramsObj, UID);

        String jsonResponse = util.getJson(result);

        // System.out.println(jsonResponse);

        return jsonResponse;
    }

}