From b6ba5a8ac60e8013e22ed44b15ffdc5ad8097060 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Fri, 17 Jul 2015 14:32:55 +1200 Subject: Rename package from http to web --- src/org/traccar/http/AsyncServlet.java | 211 --------------------------------- 1 file changed, 211 deletions(-) delete mode 100644 src/org/traccar/http/AsyncServlet.java (limited to 'src/org/traccar/http/AsyncServlet.java') diff --git a/src/org/traccar/http/AsyncServlet.java b/src/org/traccar/http/AsyncServlet.java deleted file mode 100644 index 0fc1cd2fb..000000000 --- a/src/org/traccar/http/AsyncServlet.java +++ /dev/null @@ -1,211 +0,0 @@ -/* - * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com) - * - * 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.traccar.http; - -import java.io.IOException; -import java.util.Collection; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Iterator; -import java.util.Map; -import java.util.Map.Entry; -import java.util.Set; -import java.util.concurrent.TimeUnit; -import javax.json.Json; -import javax.json.JsonObjectBuilder; -import javax.servlet.AsyncContext; -import javax.servlet.ServletResponse; -import javax.servlet.http.HttpServletRequest; -import javax.servlet.http.HttpServletResponse; -import org.jboss.netty.util.Timeout; -import org.jboss.netty.util.TimerTask; -import org.traccar.Context; -import org.traccar.GlobalTimer; -import org.traccar.database.ConnectionManager; -import org.traccar.helper.Log; -import org.traccar.model.Position; - -public class AsyncServlet extends BaseServlet { - - private static final long ASYNC_TIMEOUT = 120000; - - @Override - protected boolean handle(String command, HttpServletRequest req, HttpServletResponse resp) throws Exception { - async(req.startAsync(), getUserId(req)); - return true; - } - - public class AsyncSession { - - private static final boolean DEBUG_ASYNC = false; - - private static final long SESSION_TIMEOUT = 30; - private static final long REQUEST_TIMEOUT = 20; - - private boolean destroyed; - private final long userId; - private final Set devices = new HashSet<>(); - private Timeout sessionTimeout; - private Timeout requestTimeout; - private final Map positions = new HashMap<>(); - private AsyncContext activeContext; - - private void logEvent(String message) { - if (DEBUG_ASYNC) { - Log.debug("AsyncSession: " + this.hashCode() + " destroyed: " + destroyed + " " + message); - } - } - - public AsyncSession(long userId, Collection devices) { - logEvent("create userId: " + userId + " devices: " + devices.size()); - this.userId = userId; - this.devices.addAll(devices); - - Collection initialPositions = Context.getConnectionManager().getInitialState(devices); - for (Position position : initialPositions) { - positions.put(position.getDeviceId(), position); - } - - Context.getConnectionManager().addListener(devices, dataListener); - } - - public boolean hasDevice(long deviceId) { - return devices.contains(deviceId); - } - - private final ConnectionManager.DataCacheListener dataListener = new ConnectionManager.DataCacheListener() { - @Override - public void onUpdate(Position position) { - synchronized (AsyncSession.this) { - logEvent("onUpdate deviceId: " + position.getDeviceId()); - if (!destroyed) { - if (requestTimeout != null) { - requestTimeout.cancel(); - requestTimeout = null; - } - positions.put(position.getDeviceId(), position); - if (activeContext != null) { - response(); - } - } - } - } - }; - - private final TimerTask sessionTimer = new TimerTask() { - @Override - public void run(Timeout tmt) throws Exception { - synchronized (AsyncSession.this) { - logEvent("sessionTimeout"); - Context.getConnectionManager().removeListener(devices, dataListener); - synchronized (asyncSessions) { - asyncSessions.remove(userId); - } - destroyed = true; - } - } - }; - - private final TimerTask requestTimer = new TimerTask() { - @Override - public void run(Timeout tmt) throws Exception { - synchronized (AsyncSession.this) { - logEvent("requestTimeout"); - if (!destroyed) { - if (activeContext != null) { - response(); - } - } - } - } - }; - - public synchronized void request(AsyncContext context) { - logEvent("request context: " + context.hashCode()); - if (!destroyed) { - activeContext = context; - if (sessionTimeout != null) { - sessionTimeout.cancel(); - sessionTimeout = null; - } - - if (!positions.isEmpty()) { - response(); - } else { - requestTimeout = GlobalTimer.getTimer().newTimeout( - requestTimer, REQUEST_TIMEOUT, TimeUnit.SECONDS); - } - } - } - - private synchronized void response() { - logEvent("response context: " + activeContext.hashCode()); - if (!destroyed) { - ServletResponse response = activeContext.getResponse(); - - JsonObjectBuilder result = Json.createObjectBuilder(); - result.add("success", true); - result.add("data", JsonConverter.arrayToJson(positions.values())); - positions.clear(); - - try { - response.getWriter().println(result.build().toString()); - } catch (IOException error) { - Log.warning(error); - } - - activeContext.complete(); - activeContext = null; - - sessionTimeout = GlobalTimer.getTimer().newTimeout( - sessionTimer, SESSION_TIMEOUT, TimeUnit.SECONDS); - } - } - - } - - private static final Map asyncSessions = new HashMap<>(); - - public static void sessionRefreshUser(long userId) { - asyncSessions.remove(userId); - } - - public static void sessionRefreshDevice(long deviceId) { - Iterator> iterator = asyncSessions.entrySet().iterator(); - while (iterator.hasNext()) { - if (iterator.next().getValue().hasDevice(deviceId)) { - iterator.remove(); - } - } - } - - private void async(final AsyncContext context, long userId) { - - context.setTimeout(ASYNC_TIMEOUT); - HttpServletRequest req = (HttpServletRequest) context.getRequest(); - - synchronized (asyncSessions) { - - if (Boolean.valueOf(req.getParameter("first")) || !asyncSessions.containsKey(userId)) { - Collection devices = Context.getPermissionsManager().allowedDevices(userId); - asyncSessions.put(userId, new AsyncSession(userId, devices)); - } - - asyncSessions.get(userId).request(context); - } - } - -} -- cgit v1.2.3