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/**
 * JBoss, Home of Professional Open Source
 * Copyright Red Hat, Inc., and individual contributors.
 *
 * 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.jboss.aerogear.simplepush.vertx;

import static org.jboss.aerogear.simplepush.protocol.impl.json.JsonUtil.toJson;

import java.util.concurrent.ConcurrentMap;

import org.jboss.aerogear.simplepush.protocol.NotificationMessage;
import org.jboss.aerogear.simplepush.protocol.impl.NotificationMessageImpl;
import org.jboss.aerogear.simplepush.server.Notification;
import org.jboss.aerogear.simplepush.server.SimplePushServer;
import org.vertx.java.core.Handler;
import org.vertx.java.core.Vertx;
import org.vertx.java.core.buffer.Buffer;
import org.vertx.java.core.http.HttpServerRequest;
import org.vertx.java.core.logging.Logger;
import org.vertx.java.platform.Container;

/**
 * Handles HTTP PUT notification in the SimplePush Server.
 */
public class HttpNotificationHandler implements Handler {

    private final SimplePushServer simplePushServer;
    private final Vertx vertx;
    private final Logger logger;
    private final ConcurrentMap writeHandlerMap;

    public HttpNotificationHandler(final SimplePushServer simplePushServer, final Vertx vertx, final Container container) {
        this.simplePushServer = simplePushServer;
        this.vertx = vertx;
        writeHandlerMap = vertx.sharedData().getMap(VertxSimplePushServer.WRITE_HANDLER_MAP);
        logger = container.logger();
    }

    @Override
    public void handle(final HttpServerRequest request) {
        request.bodyHandler(new Handler() {
            @Override
            public void handle(final Buffer buffer) {
                try {
                    final String endpointToken = request.params().get("endpoint");
                    final String payload = buffer.toString();
                    logger.info("Notification endpointToken  [" + endpointToken + "] " + payload);
                    final Notification notification = simplePushServer.handleNotification(endpointToken, payload);
                    final NotificationMessage notificationMessage = new NotificationMessageImpl(notification.ack());
                    vertx.eventBus().send(writeHandlerMap.get(notification.uaid()), new Buffer(toJson(notificationMessage)));
                    request.response().setStatusCode(200);
                    request.response().end();
                } catch (final Exception e) {
                    logger.error(e);
                    request.response().setStatusCode(400);
                    request.response().setStatusMessage(e.getMessage());
                    request.response().end();
                }
            }
        });
    }

}