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-rw-r--r--src/org/traccar/http/AsyncServlet.java201
-rw-r--r--src/org/traccar/http/MainServlet.java153
-rw-r--r--src/org/traccar/http/WebServer.java1
3 files changed, 202 insertions, 153 deletions
diff --git a/src/org/traccar/http/AsyncServlet.java b/src/org/traccar/http/AsyncServlet.java
new file mode 100644
index 000000000..c66126667
--- /dev/null
+++ b/src/org/traccar/http/AsyncServlet.java
@@ -0,0 +1,201 @@
+/*
+ * 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 org.jboss.netty.util.Timeout;
+import org.jboss.netty.util.TimerTask;
+import org.traccar.Context;
+import org.traccar.GlobalTimer;
+import org.traccar.database.DataCache;
+import org.traccar.database.ObjectConverter;
+import org.traccar.helper.Log;
+import org.traccar.model.Position;
+
+import javax.json.Json;
+import javax.json.JsonObjectBuilder;
+import javax.servlet.AsyncContext;
+import javax.servlet.ServletException;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+public class AsyncServlet extends HttpServlet {
+
+ private static final long ASYNC_TIMEOUT = 120000;
+
+ @Override
+ protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+ async(req.startAsync());
+ }
+
+ public class AsyncSession {
+
+ private static final boolean DEBUG_ASYNC = true;
+
+ private static final long SESSION_TIMEOUT = 30;
+ private static final long REQUEST_TIMEOUT = 30;
+
+ private boolean destroyed;
+ private final long userId;
+ private final Collection<Long> devices;
+ private Timeout sessionTimeout;
+ private Timeout requestTimeout;
+ private final Map<Long, Position> positions = new HashMap<Long, Position>();
+ 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 = devices;
+
+ Collection<Position> initialPositions = Context.getDataCache().getInitialState(devices);
+ for (Position position : initialPositions) {
+ positions.put(position.getDeviceId(), position);
+ }
+
+ Context.getDataCache().addListener(devices, dataListener);
+ }
+
+ @Override
+ protected void finalize() throws Throwable {
+ super.finalize();
+ logEvent("finalize");
+ }
+
+ private final DataCache.DataCacheListener dataListener = new DataCache.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.getDataCache().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", ObjectConverter.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 final Map<Long, AsyncSession> asyncSessions = new HashMap<Long, AsyncSession>();
+
+ private void async(final AsyncContext context) {
+
+ context.setTimeout(ASYNC_TIMEOUT);
+ HttpServletRequest req = (HttpServletRequest) context.getRequest();
+ long userId = (Long) req.getSession().getAttribute(MainServlet.USER_ID);
+
+ synchronized (asyncSessions) {
+
+ if (!asyncSessions.containsKey(userId)) {
+ Collection<Long> devices = Context.getPermissionsManager().allowedDevices(userId);
+ asyncSessions.put(userId, new AsyncSession(userId, devices));
+ }
+
+ asyncSessions.get(userId).request(context);
+ }
+ }
+
+}
diff --git a/src/org/traccar/http/MainServlet.java b/src/org/traccar/http/MainServlet.java
index 4dc02e81f..2ba97ed57 100644
--- a/src/org/traccar/http/MainServlet.java
+++ b/src/org/traccar/http/MainServlet.java
@@ -42,8 +42,6 @@ public class MainServlet extends HttpServlet {
public static final String USER_ID = "userId";
- private static final long ASYNC_TIMEOUT = 120000;
-
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
@@ -51,8 +49,6 @@ public class MainServlet extends HttpServlet {
if (command == null) {
resp.sendError(HttpServletResponse.SC_BAD_REQUEST);
- } else if (command.equals("/async")) {
- async(req.startAsync());
} else if (command.equals("/session")) {
session(req, resp);
} else if (command.equals("/login")) {
@@ -63,155 +59,6 @@ public class MainServlet extends HttpServlet {
resp.sendError(HttpServletResponse.SC_BAD_REQUEST);
}
}
-
- public class AsyncSession {
-
- private static final boolean DEBUG_ASYNC = true;
-
- private static final long SESSION_TIMEOUT = 30;
- private static final long REQUEST_TIMEOUT = 30;
-
- private boolean destroyed;
- private final long userId;
- private final Collection<Long> devices;
- private Timeout sessionTimeout;
- private Timeout requestTimeout;
- private final Map<Long, Position> positions = new HashMap<Long, Position>();
- 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 = devices;
-
- Collection<Position> initialPositions = Context.getDataCache().getInitialState(devices);
- for (Position position : initialPositions) {
- positions.put(position.getDeviceId(), position);
- }
-
- Context.getDataCache().addListener(devices, dataListener);
- }
-
- @Override
- protected void finalize() throws Throwable {
- logEvent("finalize");
- }
-
- private final DataCache.DataCacheListener dataListener = new DataCache.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.getDataCache().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", ObjectConverter.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 final Map<Long, AsyncSession> asyncSessions = new HashMap<Long, AsyncSession>();
-
- private void async(final AsyncContext context) {
-
- context.setTimeout(60000);
- HttpServletRequest req = (HttpServletRequest) context.getRequest();
- long userId = (Long) req.getSession().getAttribute(USER_ID);
-
- synchronized (asyncSessions) {
-
- if (!asyncSessions.containsKey(userId)) {
- Collection<Long> devices = Context.getPermissionsManager().allowedDevices(userId);
- asyncSessions.put(userId, new AsyncSession(userId, devices));
- }
-
- asyncSessions.get(userId).request(context);
- }
- }
private void session(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.getWriter().println("{ success: true, session: " + (req.getSession().getAttribute(USER_ID) != null) + " }");
diff --git a/src/org/traccar/http/WebServer.java b/src/org/traccar/http/WebServer.java
index 50ee60d04..15c8527e8 100644
--- a/src/org/traccar/http/WebServer.java
+++ b/src/org/traccar/http/WebServer.java
@@ -51,6 +51,7 @@ public class WebServer {
ServletContextHandler servletHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
servletHandler.setContextPath("/api");
+ servletHandler.addServlet(new ServletHolder(new AsyncServlet()), "/async/*");
servletHandler.addServlet(new ServletHolder(new DeviceServlet()), "/device/*");
servletHandler.addServlet(new ServletHolder(new MainServlet()), "/*");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 18:29:32 +0000