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authorAnton Tananaev <anton.tananaev@gmail.com>2015-04-30 16:48:17 +1200
committerAnton Tananaev <anton.tananaev@gmail.com>2015-04-30 16:48:17 +1200
commitfceecda9e32313916ab8695192c6e12bb59bd717 (patch)
tree8960cc3617b41dece440a8a8a390f422ab1b52ac /src/org/traccar/http/MainServlet.java
parent6c3367bc3fb2e60e9a9a48e419907a3e49ba07e6 (diff)
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Separate async API servlet
Diffstat (limited to 'src/org/traccar/http/MainServlet.java')
-rw-r--r--src/org/traccar/http/MainServlet.java153
1 files changed, 0 insertions, 153 deletions
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) + " }");