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author | Anton Tananaev <anton.tananaev@gmail.com> | 2016-04-16 11:24:54 +1200 |
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committer | Anton Tananaev <anton.tananaev@gmail.com> | 2016-04-16 11:24:54 +1200 |
commit | 30f10f12d32915d74e36b4bf336e4e2d7ac3aada (patch) | |
tree | 995c926096db04c6b3e90b58bcb6a6f7db1bb322 /src/org/traccar/web/AsyncServlet.java | |
parent | fdd2fdf77cc5152986e26abf79f348b23b24ca64 (diff) | |
download | trackermap-server-30f10f12d32915d74e36b4bf336e4e2d7ac3aada.tar.gz trackermap-server-30f10f12d32915d74e36b4bf336e4e2d7ac3aada.tar.bz2 trackermap-server-30f10f12d32915d74e36b4bf336e4e2d7ac3aada.zip |
Remove old web API service
Diffstat (limited to 'src/org/traccar/web/AsyncServlet.java')
-rw-r--r-- | src/org/traccar/web/AsyncServlet.java | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/src/org/traccar/web/AsyncServlet.java b/src/org/traccar/web/AsyncServlet.java deleted file mode 100644 index e4cb64c57..000000000 --- a/src/org/traccar/web/AsyncServlet.java +++ /dev/null @@ -1,237 +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.web; - -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.Device; -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 static class AsyncSession { - - public 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<Long> devices = new HashSet<>(); - private Timeout sessionTimeout; - private Timeout requestTimeout; - private final Set<Device> deviceUpdates = new HashSet<>(); - private final Set<Position> positionUpdates = new HashSet<>(); - private AsyncContext activeContext; - - private void logEvent(String message) { - if (DEBUG_ASYNC) { - Log.debug("AsyncSession: " + this.hashCode() + " destroyed: " + destroyed + " " + message); - } - } - - public AsyncSession(long userId, Collection<Long> devices) { - logEvent("create userId: " + userId + " devices: " + devices.size()); - this.userId = userId; - this.devices.addAll(devices); - - Collection<Position> initialPositions = Context.getConnectionManager().getInitialState(devices); - for (Position position : initialPositions) { - positionUpdates.add(position); - } - - Context.getConnectionManager().addListener(devices, dataListener); - } - - public boolean hasDevice(long deviceId) { - return devices.contains(deviceId); - } - - private final ConnectionManager.UpdateListener dataListener = new ConnectionManager.UpdateListener() { - @Override - public void onUpdateDevice(Device device) { - synchronized (AsyncSession.this) { - logEvent("onUpdateDevice deviceId: " + device.getId()); - if (!destroyed) { - if (requestTimeout != null) { - requestTimeout.cancel(); - requestTimeout = null; - } - deviceUpdates.add(device); - if (activeContext != null) { - response(); - } - } - } - } - - @Override - public void onUpdatePosition(Position position) { - synchronized (AsyncSession.this) { - logEvent("onUpdatePosition deviceId: " + position.getDeviceId()); - if (!destroyed) { - if (requestTimeout != null) { - requestTimeout.cancel(); - requestTimeout = null; - } - positionUpdates.add(position); - if (activeContext != null) { - response(); - } - } - } - } - }; - - private final TimerTask sessionTimer = new TimerTask() { - @Override - public void run(Timeout tmt) throws Exception { - synchronized (AsyncSession.this) { - logEvent("sessionTimeout"); - destroyed = true; - } - Context.getConnectionManager().removeListener(devices, dataListener); - synchronized (ASYNC_SESSIONS) { - if (ASYNC_SESSIONS.get(userId) == AsyncSession.this) { - ASYNC_SESSIONS.remove(userId); - } - } - } - }; - - private final TimerTask requestTimer = new TimerTask() { - @Override - public void run(Timeout tmt) throws Exception { - synchronized (AsyncSession.this) { - logEvent("requestTimeout"); - if (!destroyed && 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 (!deviceUpdates.isEmpty() || !positionUpdates.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(positionUpdates)); - - deviceUpdates.clear(); - positionUpdates.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<Long, AsyncSession> ASYNC_SESSIONS = new HashMap<>(); - - public static void sessionRefreshUser(long userId) { - synchronized (ASYNC_SESSIONS) { - ASYNC_SESSIONS.remove(userId); - } - } - - public static void sessionRefreshDevice(long deviceId) { - synchronized (ASYNC_SESSIONS) { - Iterator<Entry<Long, AsyncSession>> iterator = ASYNC_SESSIONS.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 (ASYNC_SESSIONS) { - - if (Boolean.parseBoolean(req.getParameter("first")) || !ASYNC_SESSIONS.containsKey(userId)) { - Collection<Long> devices = Context.getPermissionsManager().getDevicePermissions(userId); - ASYNC_SESSIONS.put(userId, new AsyncSession(userId, devices)); - } - - ASYNC_SESSIONS.get(userId).request(context); - } - } - -} |