Example usage for java.lang.ref WeakReference WeakReference

List of usage examples for java.lang.ref WeakReference WeakReference

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Introduction

In this page you can find the example usage for java.lang.ref WeakReference WeakReference.

Prototype

public WeakReference(T referent)

Source Link

Document

Creates a new weak reference that refers to the given object.

Usage

From source file:com.hippoapp.asyncmvp.http.AsyncHttpClient.java

private void sendRequest(DefaultHttpClient client, HttpContext httpContext, HttpUriRequest uriRequest,
        String contentType, IAsyncHttpResponseHandler responseHandler, Context context, int protocol,
        int cacheProtocol, String cacheId) {
    if (contentType != null) {
        uriRequest.addHeader("Content-Type", contentType);
    }//from  w  w w .j  a v  a  2 s. co m
    Future request = threadPool.submit(new AsyncCachedHttpRequest(client, httpContext, uriRequest,
            responseHandler, protocol, cacheProtocol, cacheId));
    // TODO if use application context there is no need to check
    if (context != null) {
        // Add request to request map
        List<WeakReference<Future>> requestList = requestMap.get(context);
        if (requestList == null) {
            requestList = new LinkedList<WeakReference<Future>>();
            requestMap.put(context, requestList);
        }

        requestList.add(new WeakReference<Future>(request));

        // TODO: Remove dead weakrefs from requestLists?
    }
}

From source file:com.android.leanlauncher.LauncherModel.java

/**
 * Set this as the current Launcher activity object for the loader.
 */// w  ww. j  a  v  a 2  s  . c  om
public void initialize(Callbacks callbacks) {
    synchronized (mLock) {
        mCallbacks = new WeakReference<Callbacks>(callbacks);
    }
}

From source file:com.baidu.asynchttpclient.AsyncHttpClient.java

private Future<?> sendRequest(DefaultHttpClient client, HttpContext httpContext, HttpUriRequest uriRequest,
        String contentType, AsyncHttpResponseHandler responseHandler, Context context) {
    if (contentType != null) {
        uriRequest.addHeader("Content-Type", contentType);
    }/*  w  w w. j  a  v a2s  .c om*/
    /*
     * ------------------ http header ----------------- uriRequest.addHeader("Platform", "8"); // ? 1=IOS
     * 8=Android uriRequest.addHeader("SDKVersion", NdCommplatformExtends.getInstance().getVersion()); // SDK??
     * uriRequest.addHeader("FWVersion", Utils.getDeviceSDKVersion()); // ? String model =
     * android.os.Build.MODEL; if(!TextUtils.isEmpty(model)) { if(model.length() > 10) { model =
     * model.substring(model.length() - 10); } uriRequest.addHeader("PhoneType", model); // ?(N97, Touch
     * HD10??10) } uriRequest.addHeader("Resolution", ScreenUtil.screen_width(context) + "x" +
     * ScreenUtil.screen_height(context)); // x640x960 uriRequest.addHeader("Network",
     * Utils.isWifi(context)? "1" : "0"); //  0=?WIFI 1=WIFI /* ------------------ http header
     * -----------------
     */

    Future<?> request = threadPool
            .submit(new AsyncHttpRequest(client, httpContext, uriRequest, responseHandler));

    if (context != null) {
        // Add request to request map
        List<WeakReference<Future<?>>> requestList = requestMap.get(context);
        if (requestList == null) {
            requestList = new LinkedList<WeakReference<Future<?>>>();
            requestMap.put(context, requestList);
        }

        requestList.add(new WeakReference<Future<?>>(request));

        // TODO: Remove dead weakrefs from requestLists?
    }
    return request;
}

From source file:com.folioreader.ui.folio.activity.FolioActivity.java

@Override
public WeakReference<FolioActivity> getActivity() {
    return new WeakReference<>(this);
}

From source file:org.sakaiproject.iclicker.logic.IClickerLogic.java

/**
 * Executes the add or remove tool workspace operation
 * @param type the type of runner to make, from BigRunner.RUNNER_TYPE_*
 * @return the runner object indicating progress
 * @throws IllegalArgumentException if the runner type is unknown
 * @throws IllegalStateException if there is a runner in progress of a different type
 * @throws ClickerLockException if a lock cannot be obtained
 *///  ww w  . j  ava 2s  .  c  o  m
public BigRunner startRunnerOperation(String type) {
    BigRunner runner = getRunnerStatus();
    if (runner != null) {
        // allow the runner to be cleared if done
        if (runner.isComplete()) {
            runner = null;
        } else {
            if (!type.equals(runner.getType())) {
                throw new IllegalStateException(
                        "Already running a big runner of a different type: " + runner.getType());
            }
        }
    }

    if (runner == null) {
        // try to obtain a lock
        Boolean gotLock = dao.obtainLock(BigRunner.RUNNER_LOCK, serverId, 600000); // expire 10 mins
        if (gotLock != null && gotLock) {
            if (BigRunner.RUNNER_TYPE_ADD.equalsIgnoreCase(type)) {
                runner = getExternalLogic().makeAddToolToWorkspacesRunner(ICLICKER_TOOL_ID, workspacePageTitle,
                        null);
            } else if (BigRunner.RUNNER_TYPE_REMOVE.equalsIgnoreCase(type)) {
                runner = getExternalLogic().makeRemoveToolFromWorkspacesRunner(ICLICKER_TOOL_ID);
            } else {
                throw new IllegalArgumentException("Unknown type of runner operation: " + type);
            }
            final BigRunner bigRunner = runner;
            Runnable runnable = new Runnable() {
                public void run() {
                    try {
                        bigRunner.run();
                    } catch (Exception e) {
                        String msg = "long running process (" + bigRunner + ") failure: " + e;
                        sendNotification(msg, e);
                        log.warn(msg, e);
                        // sleep for 5 secs to hold the error state so it can be checked
                        try {
                            Thread.sleep(5000);
                        } catch (InterruptedException e1) {
                            // nothing to do here
                        }
                    } finally {
                        clearRunner(); // when done
                        dao.releaseLock(BigRunner.RUNNER_LOCK, serverId);
                    }
                }
            };
            new Thread(runnable).start(); // start up a thread to run this
            log.info("Starting new long running process (" + runner + ")");
            this.runnerHolder = new WeakReference<BigRunner>(runner);
        } else {
            // failed to obtain the lock
            String msg = "Could not obtain a lock (" + BigRunner.RUNNER_LOCK + ") on server (" + serverId
                    + "): " + gotLock;
            log.info(msg);
            throw new ClickerLockException(msg, BigRunner.RUNNER_LOCK, serverId);
        }
    }
    return runner;
}

From source file:biz.laenger.android.vpbs.ViewPagerBottomSheetBehavior.java

private View findAllScrollableChild(View view) {
    if (view instanceof NestedScrollingChild) {
        return view;
    }/*  w  w w. j av a  2s. c  o  m*/
    if (view instanceof ViewPager) {
        ViewPager viewPager = ((ViewPager) view);
        for (int c = 0; c < viewPager.getChildCount(); c++) {
            View currentViewPagerChild = viewPager.getChildAt(c);
            if (currentViewPagerChild != null) {
                View scrollingChild = findAllScrollableChild(currentViewPagerChild);
                if (scrollingChild != null) {
                    scrollableViews.add(new WeakReference<View>(scrollingChild));
                }
            }
        }
    } else if (view instanceof ViewGroup) {
        ViewGroup group = (ViewGroup) view;
        for (int i = 0, count = group.getChildCount(); i < count; i++) {
            View scrollingChild = findAllScrollableChild(group.getChildAt(i));
            if (scrollingChild != null) {
                scrollableViews.add(new WeakReference<>(scrollingChild));
            }
        }
    }
    return null;
}

From source file:com.heyzap.http.AsyncHttpClient.java

private void sendRequest(DefaultHttpClient client, HttpContext httpContext, HttpUriRequest uriRequest,
        String contentType, AsyncHttpResponseHandler responseHandler, Context context) {
    if (contentType != null) {
        uriRequest.addHeader("Content-Type", contentType);
    }/*from  w w w . j  av  a  2  s. c o m*/

    Future<?> request = threadPool
            .submit(new AsyncHttpRequest(client, httpContext, uriRequest, responseHandler));

    if (context != null) {
        // Add request to request map
        List<WeakReference<Future<?>>> requestList = requestMap.get(context);
        if (requestList == null) {
            requestList = new LinkedList<WeakReference<Future<?>>>();
            requestMap.put(context, requestList);
        }

        requestList.add(new WeakReference<Future<?>>(request));

    }
}

From source file:com.benefit.buy.library.http.query.callback.AbstractAjaxCallback.java

/**
 * Starts the async process. If activity is passed, the callback method will not be invoked if the activity is no
 * longer in use. Specifically, isFinishing() is called to determine if the activity is active.
 * @param act activity/*from  ww w . ja  v  a2  s.c o m*/
 */
public void async(Activity act) {
    if (act.isFinishing()) {
        AQUtility.warn("Warning", "Possible memory leak. Calling ajax with a terminated activity.");
    }
    if (type == null) {
        AQUtility.warn("Warning", "type() is not called with response type.");
        return;
    }
    this.act = new WeakReference<Activity>(act);
    async((Context) act);
}

From source file:uk.ac.horizon.ug.exploding.client.BackgroundThread.java

/** check */
private static synchronized void checkThread(Context context) {
    if (currentClientState == null)
        currentClientState = new ClientState(ClientStatus.CONFIGURING, GameStatus.UNKNOWN);
    //      if (singleton==null || !singleton.isAlive()) {
    //         Log.i(TAG, (singleton!=null ? "(Re)": "")+"starting background thread");
    //         singleton = new Thread(new BackgroundThread());
    //         singleton.start();         
    //      }/*from   w  w  w  .  j  a va  2s . c o  m*/
    if (contextRef == null || contextRef.get() == null) {
        contextRef = new WeakReference<Context>(context);
        //         PreferenceManager.getDefaultSharedPreferences(context).registerOnSharedPreferenceChangeListener(new SharedPreferenceChangeListener());
    }
    // TODO
}

From source file:com.appbase.androidquery.callback.AbstractAjaxCallback.java

/**
 * Starts the async process. /*from   w  ww. j  av  a 2 s  .c om*/
 *
 * If activity is passed, the callback method will not be invoked if the activity is no longer in use.
 * Specifically, isFinishing() is called to determine if the activity is active.
 *
 * @param act activity
 */
public void async(Activity act) {

    if (act.isFinishing()) {
        AQUtility.warn("Warning", "Possible memory leak. Calling ajax with a terminated activity.");
    }

    if (type == null) {
        AQUtility.warn("Warning", "type() is not called with response type.");
        return;
    }

    this.act = new WeakReference<Activity>(act);
    async((Context) act);

}