Example usage for java.lang.ref WeakReference WeakReference

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:net.rim.ejde.internal.util.VMUtils.java

/**
 * Gets the string value of an EE property from a given EE file.
 *
 * @param eeFile/*  w w w  .  ja va 2  s  . c  om*/
 *            the ee file
 * @param property
 *            the property
 *
 * @return the string value of the property
 */
static public String getPropertyFromEEFile(final File eeFile, final String property) {
    if ((null != eeFile) && eeFile.exists() && eeFile.isFile()) {
        InputStream inputStream = null;
        Properties properties = null;
        WeakReference<Properties> propsStub = null;
        WeakReference<InputStream> streamStub = null;

        try {
            propsStub = new WeakReference<Properties>(new Properties());
            properties = propsStub.get();

            streamStub = new WeakReference<InputStream>(new FileInputStream(eeFile));
            inputStream = streamStub.get();

            properties.load(inputStream);

            final String id = properties.getProperty(property);

            return id;
        } catch (final FileNotFoundException e) {
            _log.error("", e); //$NON-NLS-1$
        } catch (final IOException e) {
            _log.error("", e); //$NON-NLS-1$
        } finally {
            if (null != properties) {
                properties.clear();
                if (propsStub != null) {
                    propsStub.clear();
                    propsStub = null;
                }
            }
            if (null != inputStream) {
                try {
                    inputStream.close();
                    if (streamStub != null) {
                        streamStub.clear();
                        streamStub = null;
                    }
                } catch (final IOException e) {
                    _log.error("", e); //$NON-NLS-1$
                }
            }
        }
    }

    return StringUtils.EMPTY;
}

From source file:com.apptentive.android.sdk.ApptentiveInternal.java

public void onActivityStarted(Activity activity) {
    if (activity != null) {
        // Set current foreground activity reference whenever a new activity is started
        currentTaskStackTopActivity = new WeakReference<Activity>(activity);
        messageManager.setCurrentForegroundActivity(activity);
    }/*  www .jav a2  s  .  c o m*/

    checkAndUpdateApptentiveConfigurations();

    syncDevice();
    syncPerson();
}

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

/**
 * Perform a HTTP PUT request and track the Android Context which initiated the request.
 * /*  w w  w  . j a v  a  2 s . co m*/
 * @param context the Android Context which initiated the request.
 * @param url the URL to send the request to.
 * @param entity a raw {@link HttpEntity} to send with the request, for example, use this to send string/json/xml
 *            payloads to a server by passing a {@link org.apache.http.entity.StringEntity}.
 * @param contentType the content type of the payload you are sending, for example application/json if sending a
 *            json payload.
 * @param responseHandler the response handler instance that should handle the response.
 */
public WeakReference<Future<?>> put(Context context, String url, HttpEntity entity, String contentType,
        AsyncHttpResponseHandler responseHandler) {
    return new WeakReference<Future<?>>(sendRequest(httpClient, httpContext,
            addEntityToRequestBase(new HttpPut(url), entity), contentType, responseHandler, context));
}

From source file:com.zuowuxuxi.asihttp.AsyncHttpClient.java

@SuppressWarnings("rawtypes")
private void sendRequest(DefaultHttpClient client, HttpContext httpContext, HttpUriRequest uriRequest,
        String contentType, AsyncHttpResponseHandler responseHandler, Context context) {
    if (contentType != null) {
        uriRequest.addHeader("Content-Type", contentType);
    }/* w ww .  jav a2s  .  co 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));

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

From source file:com.apptentive.android.sdk.ApptentiveInternal.java

public void onActivityResumed(Activity activity) {
    if (activity != null) {
        // Set current foreground activity reference whenever a new activity is started
        currentTaskStackTopActivity = new WeakReference<Activity>(activity);
        messageManager.setCurrentForegroundActivity(activity);
    }/*ww  w.j av  a  2 s .  c o  m*/

}

From source file:cn.edu.zafu.corepage.base.BaseActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_base);
    Intent mNewIntent = getIntent();//from w  ww  .  j a  v  a2 s .c  o m
    //?activity
    if (null != savedInstanceState) {
        loadActivitySavedData(savedInstanceState);
        //???
        //?SaveWithActivity
    }
    mHandler = new Handler(getMainLooper());
    //handler
    mCurrentInstance = new WeakReference<BaseActivity>(this);
    //?activity
    mActivities.add(mCurrentInstance);
    //?activityactivity
    printAllActivities();
    //?activity

    init(mNewIntent);
    //?activity
    IntentFilter filter = new IntentFilter();
    filter.addAction(CoreConfig.ACTION_EXIT_APP);
    filter.addCategory(Intent.CATEGORY_DEFAULT);
    CoreConfig.getLocalBroadcastManager().registerReceiver(mExitReceiver, filter);
    //?

    //?
    AnalyticsConfig.enableEncrypt(false);
    MobclickAgent.setDebugMode(true);
    MobclickAgent.openActivityDurationTrack(false);
    MobclickAgent.updateOnlineConfig(this);
}

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

/**
 * Perform a HTTP DELETE request./*  w w w.  j a va  2s  .c o m*/
 * 
 * @param context the Android Context which initiated the request.
 * @param url the URL to send the request to.
 * @param responseHandler the response handler instance that should handle the response.
 */
public WeakReference<Future<?>> delete(Context context, String url, AsyncHttpResponseHandler responseHandler) {
    final HttpDelete delete = new HttpDelete(url);
    return new WeakReference<Future<?>>(
            sendRequest(httpClient, httpContext, delete, null, responseHandler, context));
}

From source file:net.sf.maltcms.common.charts.api.overlay.SelectionOverlay.java

/**
 *
 * @return//ww  w . jav a 2s  . c om
 */
@Override
public Node createNodeDelegate() {
    Node node = null;
    if (nodeReference == null) {
        node = overlayNode(this, Children.LEAF, getLookup());
        nodeReference = new WeakReference<>(node);
    } else {
        node = nodeReference.get();
        if (node == null) {
            node = overlayNode(this, Children.LEAF, getLookup());
            nodeReference = new WeakReference<>(node);
        }
    }
    return node;
}

From source file:org.gaeproxy.GAEProxyService.java

private void markServiceStarted() {
    sRunningInstance = new WeakReference<GAEProxyService>(this);
}

From source file:com.dpbymqn.fsm.manager.FsmManager.java

private TransitionCallback invokeTransitor(final Method m, StateListener sl) {
    final WeakReference<StateListener> slRef = new WeakReference<StateListener>(sl);
    final TransitionCallback cbk = new TransitionCallback() {
        @Override//  w ww.  j a va2  s . c o m
        public void onTransition(StatefulObject st, String fromState, String toState) {
            if (m.getParameterTypes() != null) {
                // many different types and possibilities
                switch (m.getParameterTypes().length) {
                case 0:
                    invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get());
                    break;
                case 1:
                    if (String.class.equals(m.getParameterTypes()[0])) {
                        if (fromState != null) {
                            invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), toState);
                        } else {
                            invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), fromState);
                        }
                    } else if (StatefulObject.class.isAssignableFrom(m.getParameterTypes()[0])) {
                        invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), st);
                    } else {
                        //                                invoke(m, Modifier.isStatic(m.getModifiers()) ? null : sl, st);
                        throw new UnsupportedOperationException("Single parameter, but not recognized:"
                                + m.getParameterTypes()[0].getSimpleName());
                    }
                    break;
                case 2:
                    if (String.class.equals(m.getParameterTypes()[0])) {
                        invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), fromState, toState);
                    } else if (StatefulObject.class.isAssignableFrom(m.getParameterTypes()[0])) {
                        if (fromState != null) {
                            invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), st, toState);
                        } else {
                            invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), st, fromState);
                        }
                    }
                    break;
                case 3:
                    // format: void method( Stated st, String fromState, String toState )
                    invoke(m, Modifier.isStatic(m.getModifiers()) ? null : slRef.get(), st, fromState, toState);
                    break;
                }
            }
        }
    };
    return cbk;
}