Examples with NetworkEvent com.codename1.io.NetworkEvent used on opensource projects

Example 16 with NetworkEvent

use of com.codename1.io.NetworkEvent in project CodenameOne by codenameone.

the class ConnectionRequest method downloadImage.

private void downloadImage(final SuccessCallback<Image> onSuccess, final FailureCallback<Image> onFail, boolean useCache) {
    setReadResponseForErrors(false);
    if (useCache) {
        Display.getInstance().scheduleBackgroundTask(new Runnable() {

            public void run() {
                if (getDestinationFile() != null) {
                    String file = getDestinationFile();
                    FileSystemStorage fs = FileSystemStorage.getInstance();
                    if (fs.exists(file)) {
                        try {
                            EncodedImage img = EncodedImage.create(fs.openInputStream(file), (int) fs.getLength(file));
                            if (img == null) {
                                throw new IOException("Failed to load image at " + file);
                            }
                            CallbackDispatcher.dispatchSuccess(onSuccess, img);
                        } catch (Exception ex) {
                            CallbackDispatcher.dispatchError(onFail, ex);
                        }
                    } else {
                        downloadImage(onSuccess, onFail, false);
                    }
                } else if (getDestinationStorage() != null) {
                    String file = getDestinationStorage();
                    Storage fs = Storage.getInstance();
                    if (fs.exists(file)) {
                        try {
                            EncodedImage img = EncodedImage.create(fs.createInputStream(file), fs.entrySize(file));
                            if (img == null) {
                                throw new IOException("Failed to load image at " + file);
                            }
                            CallbackDispatcher.dispatchSuccess(onSuccess, img);
                        } catch (Exception ex) {
                            CallbackDispatcher.dispatchError(onFail, ex);
                        }
                    } else {
                        downloadImage(onSuccess, onFail, false);
                    }
                }
            }
        });
    } else {
        final ActionListener onDownload = new ActionListener<NetworkEvent>() {

            public void actionPerformed(NetworkEvent nevt) {
                int rc = nevt.getResponseCode();
                if (rc == 200 || rc == 201) {
                    downloadImage(onSuccess, onFail, true);
                } else {
                    if (nevt.getError() == null) {
                        nevt.setError(new IOException("Failed to get image:  Code was " + nevt.getResponseCode()));
                    }
                    CallbackDispatcher.dispatchError(onFail, nevt.getError());
                }
                removeResponseListener(this);
            }
        };
        addResponseListener(onDownload);
        NetworkManager.getInstance().addToQueue(this);
    }
}

Example 17 with NetworkEvent

use of com.codename1.io.NetworkEvent in project CodenameOne by codenameone.

the class ConnectionRequest method addResponseCodeListener.

/**
 * Adds a listener that would be notified on the CodenameOne thread of a response code that
 * is not a 200 (OK) or 301/2 (redirect) response code.
 *
 * @param a listener
 */
public void addResponseCodeListener(ActionListener<NetworkEvent> a) {
    if (responseCodeListeners == null) {
        responseCodeListeners = new EventDispatcher();
        responseCodeListeners.setBlocking(false);
    }
    responseCodeListeners.addListener(a);
}

Example 18 with NetworkEvent

use of com.codename1.io.NetworkEvent in project CodenameOne by codenameone.

the class SliderBridge method bindProgress.

/**
 * Allows binding progress to an arbitrary slider
 *
 * @param sources the source connection request (null for all network activity)
 * @param s the slider
 */
public static void bindProgress(final ConnectionRequest[] sources, final Slider s) {
    Vector v = null;
    int portions = 100;
    if (sources != null) {
        v = new Vector();
        int slen = sources.length;
        for (int iter = 0; iter < slen; iter++) {
            v.addElement(sources[iter]);
        }
        portions = portions / slen;
    }
    final Vector sourceVec = v;
    final int portionPerSource = portions;
    NetworkManager.getInstance().addProgressListener(new ActionListener() {

        private float currentLength;

        private int soFar;

        /**
         * {@inheritDoc}
         */
        public void actionPerformed(ActionEvent evt) {
            if (sources != null) {
                if (!sourceVec.contains(evt.getSource())) {
                    return;
                }
            }
            NetworkEvent e = (NetworkEvent) evt;
            switch(e.getProgressType()) {
                case NetworkEvent.PROGRESS_TYPE_COMPLETED:
                    s.setInfinite(false);
                    // s.setProgress(s.getMaxValue());
                    soFar += portionPerSource;
                    s.setProgress(soFar);
                    if (sources != null) {
                        NetworkManager.getInstance().removeProgressListener(this);
                    }
                    break;
                case NetworkEvent.PROGRESS_TYPE_INITIALIZING:
                    s.setInfinite(true);
                    break;
                case NetworkEvent.PROGRESS_TYPE_INPUT:
                case NetworkEvent.PROGRESS_TYPE_OUTPUT:
                    if (e.getLength() > 0) {
                        currentLength = e.getLength();
                        // s.setMaxValue(1000);
                        s.setInfinite(false);
                        float sentReceived = e.getSentReceived();
                        sentReceived = sentReceived / currentLength * portionPerSource;
                        s.setProgress((int) sentReceived + soFar);
                    // s.setProgress(e.getSentReceived());
                    // s.setMaxValue(e.getLength());
                    } else {
                        s.setInfinite(true);
                    }
                    break;
            }
        }
    });
}

Example 19 with NetworkEvent

use of com.codename1.io.NetworkEvent in project CodenameOne by codenameone.

the class RequestBuilder method getAsStringAsync.

/**
 * Executes the request asynchronously and writes the response to the provided
 * Callback
 * @param callback writes the response to this callback
 */
public void getAsStringAsync(final Callback<Response<String>> callback) {
    ConnectionRequest request = createRequest(false);
    request.addResponseListener(new ActionListener<NetworkEvent>() {

        @Override
        public void actionPerformed(NetworkEvent evt) {
            Response res = null;
            try {
                res = new Response(evt.getResponseCode(), new String(evt.getConnectionRequest().getResponseData(), "UTF-8"), evt.getMessage());
                callback.onSucess(res);
            } catch (UnsupportedEncodingException ex) {
                ex.printStackTrace();
            }
        }
    });
    CN.addToQueue(request);
}

Example 20 with NetworkEvent

use of com.codename1.io.NetworkEvent in project CodenameOne by codenameone.

the class CachedDataService method readResponse.

/**
 * {@inheritDoc}
 */
protected void readResponse(InputStream input) throws IOException {
    data.setData(Util.readInputStream(input));
    fireResponseListener(new NetworkEvent(this, data));
    data.setFetching(false);
}