List of usage examples for java.lang.ref WeakReference WeakReference
public WeakReference(T referent)
From source file:com.activiti.android.ui.fragments.AlfrescoFragment.java
public void displayWaiting(int contentId) { dialogRef = new WeakReference<>(new MaterialDialog.Builder(getActivity()).title(R.string.please_wait) .content(contentId).progress(true, 0).show()); }
From source file:com.honeywell.printer.net.autobaln_websocket.WebSocketConnection.java
public void connect(URI webSocketURI, String[] subprotocols, ConnectionHandler connectionObserver, WebSocketOptions options) throws WebSocketException { if (isConnected()) { throw new WebSocketException("already connected"); }/*from w w w. j a v a 2 s . co m*/ if (webSocketURI == null) { throw new WebSocketException("WebSockets URI null."); } else { this.mWebSocketURI = webSocketURI; if (!mWebSocketURI.getScheme().equals(WS_URI_SCHEME) && !mWebSocketURI.getScheme().equals(WSS_URI_SCHEME)) { throw new WebSocketException("unsupported scheme for WebSockets URI"); } this.mWebSocketSubprotocols = subprotocols; this.mWebSocketConnectionObserver = new WeakReference<ConnectionHandler>(connectionObserver); this.mWebSocketOptions = new WebSocketOptions(options); connect(); } }
From source file:net.sf.mcf2pdf.mcfelements.util.ImageUtil.java
/** * Loads the given CLP or SVG file and creates a BufferedImage with the given dimensions. As CLP files contain Vector images, * they can be scaled to every size needed. The contents are scaled to the given width and height, <b>not</b> preserving any * ratio of the image./*from w w w.ja va2 s. c om*/ * * @param clpFile CLP or SVG file. * @param widthPixel The width, in pixels, the resulting image shall have. * @param heightPixel The height, in pixels, the resulting image shall have. * * @return An image displaying the contents of the loaded CLP file. * * @throws IOException If any I/O related problem occurs reading the file. */ public static BufferedImage loadClpFile(File clpFile, int widthPixel, int heightPixel) throws IOException { FileInputStream fis = new FileInputStream(clpFile); ClpInputStream cis = null; InputStream in = clpFile.getName().toLowerCase().endsWith(".clp") ? (cis = new ClpInputStream(fis)) : fis; UserAgentAdapter userAgentAdapter = new UserAgentAdapter(); BridgeContext bridgeContext = new BridgeContext(userAgentAdapter); SVGDocument svgDocument; GraphicsNode rootSvgNode; try { String parser = XMLResourceDescriptor.getXMLParserClassName(); SAXSVGDocumentFactory factory = new SAXSVGDocumentFactory(parser); svgDocument = (SVGDocument) factory.createDocument(clpFile.toURI().toString(), new InputStreamReader(in, "ISO-8859-1")); rootSvgNode = getRootNode(svgDocument, bridgeContext); } finally { IOUtils.closeQuietly(cis); IOUtils.closeQuietly(fis); } float[] vb = ViewBox.parseViewBoxAttribute(svgDocument.getRootElement(), svgDocument.getRootElement().getAttribute("viewBox"), bridgeContext); AffineTransform usr2dev = ViewBox.getPreserveAspectRatioTransform(vb, SVGPreserveAspectRatio.SVG_PRESERVEASPECTRATIO_NONE, true, widthPixel, heightPixel); BufferedImage img = new BufferedImage(widthPixel, heightPixel, BufferedImage.TYPE_INT_ARGB); Graphics2D g2d = img.createGraphics(); g2d.setColor(new Color(0.0f, 0.0f, 0.0f, 0.0f)); g2d.fillRect(0, 0, widthPixel, heightPixel); g2d.transform(usr2dev); // fixes "Graphics2D from BufferedImage lacks BUFFERED_IMAGE hint" - part 1 final Object oldBufferedImage = g2d.getRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE); g2d.setRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE, new WeakReference<BufferedImage>(img)); rootSvgNode.paint(g2d); // fixes "Graphics2D from BufferedImage lacks BUFFERED_IMAGE hint" - part 2 if (oldBufferedImage != null) g2d.setRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE, oldBufferedImage); else g2d.getRenderingHints().remove(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE); g2d.dispose(); return img; }
From source file:com.finchuk.clock2.stopwatch.ui.StopwatchFragment.java
@Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); // TOneverDO: Move to onCreate(). When the device rotates, onCreate() _is_ called, // but trying to find the FAB in the Activity's layout will fail, and we would get back // a null reference. This is probably because this Fragment's onCreate() is called // BEFORE the Activity's onCreate. // TODO: Any better alternatives to control the Activity's FAB from here? mActivityFab = new WeakReference<>((FloatingActionButton) getActivity().findViewById(R.id.fab)); // There is no documentation for isMenuVisible(), so what exactly does it do? // My guess is it checks for the Fragment's options menu. But we never initialize this // Fragment with setHasOptionsMenu(), let alone we don't actually inflate a menu in here. // My guess is when this Fragment becomes actually visible, it "hooks" onto the menu // options "internal API" and inflates its menu in there if it has one. ///* www. ja va2 s . c om*/ // To us, this just makes for a very good visibility check. if (savedInstanceState != null && isMenuVisible()) { // This is a pretty good indication that we just rotated. // isMenuVisible() filters out the case when you rotate on page 1 and scroll // to page 2, the icon will prematurely change; that happens because at page 2, // this Fragment will be instantiated for the first time for the current configuration, // and so the lifecycle from onCreate() to onActivityCreated() occurs. As such, // we will have a non-null savedInstanceState and this would call through. // // The reason when you open up the app for the first time and scrolling to page 2 // doesn't prematurely change the icon is the savedInstanceState is null, and so // this call would be filtered out sufficiently just from the first check. syncFabIconWithStopwatchState(isStopwatchRunning()); } }
From source file:cc.osint.graphd.server.GraphServerHandler.java
@Override public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception { String clientId = "" + e.getChannel().getId(); if (null == clientStateMap.get(clientId)) { ConcurrentHashMap<String, String> clientState = new ConcurrentHashMap<String, String>(); clientState.put(ST_NAMECON, DEFAULT_CONNECTION_NAME + "-" + clientId); clientStateMap.put(clientId, clientState); clientIdChannelMap.put(clientId, e.getChannel()); /*//from w w w . ja v a 2 s.co m * start "client fiber & channel" & connect them */ Fiber fiber = fiberFactory.create(); fiber.start(); org.jetlang.channels.Channel<JSONObject> inboundChannel = new MemoryChannel<JSONObject>(); InboundChannelProcess inboundChannelProcess = new InboundChannelProcess(clientId, fiber, inboundChannel, // jetlang channel e.getChannel()); // netty channel inboundChannelMap.put(clientId, new WeakReference<InboundChannelProcess>(inboundChannelProcess)); log.info(clientId + ": " + inboundChannelMap.get(clientId)); inboundChannel.subscribe(fiber, inboundChannelProcess); } e.getChannel().write("-graphd " + InetAddress.getLocalHost().getHostName() + GraphServerProtocol.SPACE + clientId + GraphServerProtocol.NL); }
From source file:io.kristal.locationplugin.LocationPlugin.java
/*********************************************************************************************** * * COBALT//from ww w .j a v a 2 s . co m * **********************************************************************************************/ @Override public void onMessage(CobaltPluginWebContainer webContainer, JSONObject message) { try { String action = message.getString(Cobalt.kJSAction); switch (action) { case JSActionStartLocation: JSONObject data = message.getJSONObject(Cobalt.kJSData); mMode = data.getString(kJSMode); if (!(MODE_ALL.equals(mMode) || MODE_FILTER.equals(mMode))) { throw new JSONException(TAG + " - onMessage: unknown mode " + mMode); } mAccuracy = (float) data.optDouble(kJSAccuracy, ACCURACY_DEFAULT_VALUE); mFrequency = data.optLong(kJSFrequency, FREQUENCY_DEFAULT_VALUE); mTimeout = data.optLong(kJSTimeout, TIMEOUT_DEFAULT_VALUE); mTimestamp = data.optLong(kJSTimestamp, TIMESTAMP_DEFAULT_VALUE); mActivity = new WeakReference<>(webContainer.getActivity()); mFragment = new WeakReference<>(webContainer.getFragment()); Activity activity = mActivity.get(); if (activity != null) { getActiveProviders(activity); if (mProviders.size() != 0) { requestLocationPermission(activity); } else { sendStatus(STATUS_DISABLED); } } break; case JSActionStopLocation: stopLocationUpdates(); break; default: if (Cobalt.DEBUG) { Log.d(TAG, "onMessage: unknown action " + action); } break; } } catch (JSONException exception) { if (Cobalt.DEBUG) { Log.d(TAG, "onMessage: action field missing or is not a string or data field is missing or is not an object. " + message.toString()); } exception.printStackTrace(); } }
From source file:com.appassit.common.Utils.java
public static String formatDate(long time) { if (calendar == null || calendar.get() == null) { calendar = new WeakReference<Calendar>(Calendar.getInstance()); }/*from ww w . j av a 2 s. com*/ Calendar target = calendar.get(); target.setTimeInMillis(time); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); return sdf.format(target.getTime()); }
From source file:org.Cherry.Modules.Web.Engine.RequestHandlerTemplate.java
protected Object getBeanParameter(final RequestCommand command, final Class<?> beanParameterType) throws JsonParseException, JsonMappingException, IOException { Object result = null;/* w ww . j av a2s . co m*/ final HttpRequest request = command.getRequest(); if (request instanceof HttpEntityEnclosingRequest) { final HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity(); final long contentLength = entity.getContentLength(); if (0 < contentLength) { final WeakReference<InputStream> is = new WeakReference<InputStream>(entity.getContent()); if (0 < is.get().available()) result = getObjectMapperService().readValue(is.get(), beanParameterType); } else warn("{}", "Undefined content/length 0! Did the sender missed it?!"); } else throw new IllegalArgumentException("Expected request of type [" + HttpEntityEnclosingRequest.class + "] but found [" + request.getClass() + "]"); return result; }
From source file:com.partytv.server.ImageManager.java
/** * Adds an observer to be notified when the set of items held by this * ImageManager changes.//w ww .ja va2 s .co m */ public void addObserver(DataSetObserver observer) { final WeakReference<DataSetObserver> obs = new WeakReference<DataSetObserver>(observer); mObservers.add(obs); }
From source file:ch.entwine.weblounge.common.impl.content.image.LazyImageResourceImpl.java
/** * Loads the image body only.//from www. j a v a 2s . c o m */ protected void loadImageBody() { try { // Get a hold of the image reader ImageResourceReader reader = (readerRef != null) ? readerRef.get() : null; if (reader == null) { reader = new ImageResourceReader(); readerRef = new WeakReference<ImageResourceReader>(reader); } // Load the image body image = reader.readBody(IOUtils.toInputStream(imageXml, "utf-8"), uri.getSite()); isBodyLoaded = true; if (isHeaderLoaded && isBodyLoaded) cleanupAfterLoading(); else if (headerXml != null) imageXml = null; } catch (Throwable e) { logger.error("Failed to lazy-load body of {}: {}", uri, e.getMessage()); throw new IllegalStateException(e); } }