com.google.android.gcm.demo.server.RegisterServlet.java Source code

Introduction

Here is the source code for com.google.android.gcm.demo.server.RegisterServlet.java

Source

/*
 * Copyright 2012 Google Inc.
 *
 * 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 com.google.android.gcm.demo.server;

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

import java.util.Collections;
import java.util.Map;
import java.util.HashMap;

import org.json.simple.*;
import java.io.*;

/**
 * Servlet that registers a device, whose registration id is identified by
 * {@link #PARAMETER_REG_ID}.
 *
 * <p>
 * The client app should call this servlet everytime it receives a
 * {@code com.google.android.c2dm.intent.REGISTRATION C2DM} intent without an
 * error or {@code unregistered} extra.
 */
@SuppressWarnings("serial")
public class RegisterServlet extends BaseServlet {

    private static final String PARAMETER_REG_ID = "regId";
    /* I added the rest of these constants */
    private static final String PARAMETER_CON_TYPE = "conType";
    private static final String PARAMETER_OLD_ID = "oldId";
    private static final String PUSH = "push";

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
        String regId = getParameter(req, PARAMETER_REG_ID);
        /* BEGIN MINE */
        String conType = getParameter(req, PARAMETER_CON_TYPE, "");
        if (conType.equals(PUSH)) {
            Datastore.toPush(getParameter(req, PARAMETER_OLD_ID), regId);
            PrintWriter out = resp.getWriter();
            JSONValue.writeJSONString(Datastore.getList(regId), out);
            out.close();
            return;
        } /* END MINE */
        Datastore.register(regId);
        setSuccess(resp);
    }

}