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:co.paralleluniverse.common.monitoring.PeriodicMonitor.java

public void setMonitoredObject(Object obj) {
    this.monitored = new WeakReference<Object>(obj);
}

From source file:com.actionbarsherlock.internal.nineoldandroids.view.animation.AnimatorProxy.java

private AnimatorProxy(View view) {
    setDuration(0); //perform transformation immediately
    setFillAfter(true); //persist transformation beyond duration
    view.setAnimation(this);
    mView = new WeakReference<View>(view);
}

From source file:org.Cherry.Modules.Web.Engine.JSONRequestHandler.java

@Override
public void handle(final RequestCommand command) throws HttpException, IOException {
    final CallDef call = scanRESTBeanURI(command.getUri());

    final JSONAgentDefinition jsonAgent = getController(call.getControllerURI());

    assert null != jsonAgent : "Undefined controller for URI [" + command.getUri() + "]";

    final RESTMethodDefinition restMethodDef = jsonAgent.get(call.getMethodURI());

    assert null != restMethodDef : "Undefined controller method for URI [" + command.getUri() + "/"
            + call.getMethodURI() + "]";

    WeakReference<Object> wkRef = null;

    if (null != restMethodDef.getBeanParameterType())
        wkRef = new WeakReference<Object>(
                restMethodDef.invoke(getBeanParameter(command, restMethodDef.getBeanParameterType())));
    else//from  ww w.  ja va 2s.com
        wkRef = new WeakReference<Object>(restMethodDef.invoke((Object[]) null));

    AbstractHttpEntity entity = null;

    if (null != wkRef && null != wkRef.get())
        if (getObjectMapperService().canSerialize(wkRef.get().getClass())) {
            debug("Handled URI [{}] with controller [{}] and result [{}]", command.getUri(), jsonAgent,
                    wkRef.get());

            final WeakReference<ByteArrayOutputStream> os = new WeakReference<ByteArrayOutputStream>(
                    new ByteArrayOutputStream());

            getObjectMapperService().writeValue(os.get(), wkRef.get());

            entity = new InputStreamEntity(new ByteArrayInputStream(os.get().toByteArray()),
                    APPLICATION_JSON_CONTENT_TYPE);
        } else
            warn("Object [{}] not JSON serializable!", wkRef.get());
    else
        warn("JSON Controller returned null for expected result of type [{}]",
                restMethodDef.getBeanParameterType());

    command.getResponse().setStatusCode(HttpStatus.SC_OK);

    if (null == entity)
        entity = new StringEntity(EMPTY_JSON_OBJECT, APPLICATION_JSON_CONTENT_TYPE);

    command.getResponse().setEntity(entity);
}

From source file:com.dgsd.android.ShiftTracker.Adapter.MonthPagerAdapter.java

@Override
public Fragment getItem(int pos) {
    final YearAndMonth ym = getYearAndMonthForPosition(pos);
    final MonthFragment frag = MonthFragment.newInstance(ym.month, ym.year);

    mPosToFragRef.put(pos, new WeakReference<MonthFragment>(frag));
    return frag;/*from w  w w. j av a  2  s  .com*/
}

From source file:py.una.pol.karaku.util.I18nHelper.java

/**
 * Retorna el {@link I18nHelper} que actualmente esta siendo utilizado por
 * la aplicacin./*from w w  w .  j  a  va 2 s  . c  o m*/
 * 
 * @return
 */
public static I18nHelper getSingleton() {

    if (weakSingleton != null) {
        return weakSingleton.get();
    }

    synchronized (I18nHelper.class) {
        if (weakSingleton == null) {
            weakSingleton = new WeakReference<I18nHelper>(context.getBean(I18nHelper.class));
        }
    }
    return weakSingleton.get();
}

From source file:com.parse.ParseRelation.java

void ensureParentAndKey(ParseObject someParent, String someKey) {
    synchronized (mutex) {
        if (parent == null) {
            parent = new WeakReference<>(someParent);
            parentObjectId = someParent.getObjectId();
            parentClassName = someParent.getClassName();
        }/*from  w  w w .  ja v a 2s .  co m*/
        if (key == null) {
            key = someKey;
        }
        if (parent.get() != someParent) {
            throw new IllegalStateException(
                    "Internal error. One ParseRelation retrieved from two different ParseObjects.");
        }
        if (!key.equals(someKey)) {
            throw new IllegalStateException(
                    "Internal error. One ParseRelation retrieved from two different keys.");
        }
    }
}

From source file:com.gargoylesoftware.htmlunit.javascript.background.JavaScriptExecutor.java

/** Creates an EventLoop for the webClient.
 *
 * @param webClient the provided webClient
 *//*  w  w w .j a va 2s  . c  om*/
public JavaScriptExecutor(final WebClient webClient) {
    jobManagerList_ = new ArrayList<WeakReference<JavaScriptJobManager>>();
    webClient_ = new WeakReference<WebClient>(webClient);
}

From source file:org.Cherry.Modules.Web.Engine.ResponseInterceptor.java

@Override
public void process(final HttpResponse response, final HttpContext context) throws HttpException, IOException {
    log.debug("Intercepted response [{}] for context [{}].", response, context);

    if (authenticated(context))
        if (createCookie(context)) {
            final WeakReference<BasicServerCookie> cookie = new WeakReference<BasicServerCookie>(
                    new BasicServerCookie(getSessionCookie(),
                            getServerSessions() ? getSession().toString() : UUID.randomUUID().toString()));

            cookie.get().setDomain(getSessionCookieDomain());
            cookie.get().setPath(getSessionCookiePath());
            cookie.get().setVersion(getSessionCookieVersion());
            cookie.get().setSecure(true);

            final Date expiryDate = new DateTime().plusMinutes(getSessionCookieTimeToLive().intValue())
                    .toDate();// ww  w. j  ava  2s  .  c om

            cookie.get().setExpiryDate(expiryDate);

            response.addHeader(Set_Cookie, cookie.get().toString());
        }
}

From source file:com.microsoft.tfs.core.ws.runtime.transport.IdleHTTPConnectionCloser.java

/**
 * Adds a client to be monitored by this thread.
 *
 * @param client//from   w  w w.j  a v  a  2 s .  c om
 *        the client whose connection manager should be monitored for idle
 *        connections that should be closed (not null).
 */
public void addClient(final HttpClient client) {
    Check.notNull(client, "client"); //$NON-NLS-1$

    synchronized (clientWeakReferences) {
        clientWeakReferences.add(new WeakReference(client));
    }
}

From source file:com.espian.ticktock.oss.CursorPagerAdapter.java

@Override
public Fragment getItem(int position) {
    if (cursor == null || cursor.getCount() == 0) {
        if (emptyFragmentClass != null) {
            try {
                return emptyFragmentClass.newInstance();
            } catch (Exception ex) {
                throw new RuntimeException(ex);
            }/*from ww  w  .j a  v a2s.c om*/
        }
        return null;
    }

    if (fragmentRefs.get(position) != null && fragmentRefs.get(position).get() != null)
        return fragmentRefs.get(position).get();

    cursor.moveToPosition(position);
    F frag;
    try {
        frag = fragmentClass.newInstance();
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
    Bundle args = new Bundle();
    if (projection == null || projection.length == 0) {
        for (int i = 0; i < cursor.getColumnCount(); i++) {
            args.putString(cursor.getColumnName(i), cursor.getString(i));
        }
    } else {
        for (int i = 0; i < projection.length; ++i) {
            args.putString(projection[i], cursor.getString(i));
        }
    }
    frag.setArguments(args);
    fragmentRefs.put(position, new WeakReference<F>(frag));
    return frag;
}