I want to download config.bin file from site. Work with htmlunit
final WebClient webClient = new WebClient(BrowserVersion.CHROME);
webClient.getOptions().setTimeout(2000);
webClient.getOptions().setThrowExceptionOnScriptError(false);
webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
webClient.setConfirmHandler(new ConfirmHandler() {
public boolean handleConfirm(Page page, String message) {
System.out.println(" -----------------------");
System.out.println("handle config");
System.out.println(" -----------------------");
return true;
}
});
final HtmlPage page = webClient.getPage("http://site");
final DomElement backup = mainFrame.getElementByName("Backup");
webClient.addWebWindowListener(new WebWindowListener()
{
public void webWindowClosed(WebWindowEvent event)
{
System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1");
};
public void webWindowContentChanged(WebWindowEvent
event)
{
System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2");
}
public void webWindowOpened(WebWindowEvent event)
{
System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!3");
}
});
InputStream input = backup.click().getWebResponse().getContentAsStream();
Then submited ckick() I think that get stream, but got submit page. I think that I have problem with browser window and I can't handle browser window. I insert sout in handler and see when this method to called but it didn't call
the problem was in period that i install. changed setTimeout and all work.
webClient.getOptions().setTimeout(15000);
Related
I want to access data on the openrouteservice API - specifically the distance between two given coordinates on the globe - from my Android application.
I have made requests and gotten viable responses from another API that converts two given addresses into their latlong coordinates using the same style of code this request is trying to execute. It works fine, the coordinates arrive and i can further utilize them no problem.
My problem is that i seem to be accessing the API wrongly because if I Log the URL as seen below and copy it from the Debug window into my browser it sends the request, gets a response and shows it in the browser window.
But my application doesn't recieve a response from the API as the onResponse code bit is never executed and the "Fetch done" Log never appears in the actual Debug Log.
The following is my setup of code, which uses Volley to access HTTP Requests and which works fine for other APIs.
#Override
protected String doInBackground(String... strings) {
Log.d("Run =>","Query 3");
String targetKoordURL = null;
String startKoordURL = null;
try {
startKoordURL = startK.getString("lon").concat(",").concat(startK.getString("lat"));
targetKoordURL = targetK.getString("lon").concat(",").concat(targetK.getString("lat"));
} catch (JSONException e) {
e.printStackTrace();
}
String URLfin = "https://api.openrouteservice.org/v2/directions/driving-car?api_key=5b3ce3597851110001cf624823e587e7a80c4c6ab02af6d394585213&start="+startKoordURL+"&end="+targetKoordURL;
Log.d("Debug =>", URLfin);
JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, URLfin, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
store = response;
Log.d("Run =>", "Fetch done!");
continueImp();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
if(error instanceof TimeoutError || error instanceof NoConnectionError){
sideFetcherHTTPRequestStart replace = new sideFetcherHTTPRequestStart();
replace.execute();
Log.d("VOLLEY_ERROR", "Retrying on Kilometer request");
}
error.printStackTrace();
}
}){
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("Accept", "application/json,application/geo+json,application/gpx+xml,img/png; charset=utf-8");
return params;
}
};
return null;
}
You forget to add the request to request queue, try to do as following:
// Instantiate the RequestQueue.
RequestQueue queue = Volley.newRequestQueue(this);
JsonObjectRequest req = new JsonObjectRequest(/*params*/);
//add above request to queue
queue.add(req);
I am working on a JavaFx application, there i have a script that extract a zip followed by some other operation like updating files etc.
I want to have a textArea that displays whats going on in background, like "Zip extracting...", "Updating xyz file" etc.
Till now i have tried following way:
MyTask<String> task;
task = new MyTask<String>() {
#Override
protected String call() throws Exception {
File path = new File(exportTo.getAbsolutePath());
updateMessage("Extracting modular app to target directory...");
patcher.unZip(appPath.getAbsolutePath(), path.getAbsolutePath());
if (path.exists()) {
AppInfo info = getAppInfo();
patcher.patchAndroid(info, resourceZip, new File(path.getAbsolutePath() + "/" + appPath.getName().substring(0, appPath.getName().lastIndexOf("."))), this);
showOkAlert("Build completed!");
} else {
showOkAlert("Modular app folder not found");
}
return "";
}
#Override
protected void updateProgress(double workDone, double max) {
patcher.reportLogs(message);
}
private String message;
#Override
public void updateMessage(final String message) {
Platform.runLater(() -> patcher.reportLogs(message));
this.message = message;
//updateProgress(0, 0);
}
};
task.run();
MyTask class
abstract class MyTask<T> extends Task<T> {
abstract public void updateMessage(String message);
}
I have tried using updateProgress method, Platform.runLater() but nothing is working.
All the message i printed in textArea are printed after all operation is done.
Please help.
As javadoc for Task states you need to manually create a Thread to execute your Task:
Thread th = new Thread(task);
th.start();
Currently your task is being run on Application UI thread and blocks UI updates.
I want to open a PDF file from server in web-view with zoom facilities.
I am using webView.setBuiltInZoomControls(true) but it throws an exception after close activity.
I am using below code:
webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setSupportZoom(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
webView.loadUrl(url);
return false;
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
});
webView.loadUrl("http://docs.google.com/gview?embedded=true&url=" + data.getTypeUrl());
Exception is :
android.view.WindowLeaked: Activity has leaked window android.widget.ZoomButtonsController$Container that was originally added here
Try this:
// make sure your pinch zoom is enabled
webView.getSettings().setBuiltInZoomControls(true);
// don't show the zoom controls
webView.getSettings().setDisplayZoomControls(false);
my web application offers a download. Javascript creats at the click the url (it depends on the user input) and the browser should open it, so that the page isn't reloaded.
For that, I think I have to alternatives:
// Alt1:
window.open(pathToFile);
// Alt2:
var downloadFrame = document.getElementById('downloads');
if (downloadFrame === null) {
downloadFrame = document.createElement('iframe');
downloadFrame.id = 'downloads';
downloadFrame.style.display = 'none';
document.body.appendChild(downloadFrame);
}
downloadFrame.src = pathToFile;
Both works under Firefox. Problem with open new window method: If the creation of the file at the server needs more time, the new empty tab will be closed late.
Problem with iframe: If there is an error at the server, no feedback is given.
I think at firefox the iframe is the better solution. But the web application must run with an JavaFX WebView, too. JavaFX haven't a download feature, I have to write it. One possible way is to listen on the location property:
final WebView webView = new WebView();
webView.getEngine().locationProperty().addListener(new ChangeListener<String>() {
#Override public void changed(ObservableValue<? extends String> observableValue, String oldLoc, String newLoc) {
if (newLoc.cotains("/download")) {
FileChooser chooser = new FileChooser();
chooser.setTitle("Save " + newLoc);
File saveFile = chooser.showSaveDialog(webView.getEngine().getScene().getWindow());
if (saveFile != null) {
BufferedInputStream is = null;
BufferedOutputStream os = null;
try {
is = new BufferedInputStream(new URL(newLoc).openStream());
os = new BufferedOutputStream(new FileOutputStream(saveFile));
while ((readBytes = is.read()) != -1) {
os.write(b);
}
} finally {
try { if (is != null) is.close(); } catch (IOException e) {}
try { if (os != null) os.close(); } catch (IOException e) {}
}
}
}
}
}
There are some problems:
The download start depends on a part of the url, because JafaFX supports no access to the http headers (that is bearable)
If the user starts the download with the same url two times, only the first download works (the change event only fires, if the url is new). I can crate unique urls (with #1, #2 and so on at the end). But this is ugly.
Only the "window.open(pathToFile);" method works. Loading an iframe don't fire the change location event of the website. That is expectable but I haven't found the right Listener.
Can someone help me to solve 2. or 3.?
Thank you!
PS: Sorry for my bad english.
edit:
For 2. I found a way. I don't know if it is a good one, if it is performant, if the new webview is deleted or is in the cache after download, ....
And the user don't get an feedback, when some a problem is raised:
webView.getEngine().setCreatePopupHandler(new Callback<PopupFeatures, WebEngine>() {
#Override public WebEngine call(PopupFeatures config) {
final WebView downloader = new WebView();
downloader.getEngine().locationProperty().addListener(/* The Listener from above */);
return downloader.getEngine();
}
}
I think you may just need to use copyURLtoFile to get the file...call that when the location changes or just call that using a registered java class. Something like this:
org.apache.commons.io.FileUtils.copyURLToFile(new URL(newLoc), new File(System.getProperty("user.home")+filename));
Using copyURLToFile the current page doesn't have to serve the file. I think registering the class is probably the easiest way to go... something like this:
PHP Code:
Download $filename
Java (in-line class in your javafx class/window... in this case my javafx window is inside of a jframe):
public class JavaApp {
JFrame cloudFrameREF;
JavaApp(JFrame cloudFrameREF)
{
this.cloudFrameREF = cloudFrameREF;
}
public void getfile(String filename) {
String newLoc = "http://your_web_site.com/send_file.php?filename=" + filename;
org.apache.commons.io.FileUtils.copyURLToFile(new URL(newLoc), new File(System.getProperty("user.home")+filename));
}
}
This part would go in the main javafx class:
Platform.runLater(new Runnable() {
#Override
public void run() {
browser2 = new WebView();
webEngine = browser2.getEngine();
appREF = new JavaApp(cloudFrame);
webEngine.getLoadWorker().stateProperty().addListener(
new ChangeListener<State>() {
#Override public void changed(ObservableValue ov, State oldState, State newState) {
if (newState == Worker.State.SUCCEEDED) {
JSObject win
= (JSObject) webEngine.executeScript("window");
// this next line registers the JavaApp class with the page... you can then call it from javascript using "app.method_name".
win.setMember("app", appREF);
}
}
});
You may not need the frame reference... I was hacking some of my own code to test this out and the ref was useful for other things...
I am developping a BlackBerry application which communicates with the server via HTTP requests(javax.microedition.io.HttpConnection). On device, user clicks some UI items, and device sends the requests to server, when the response comes, UI changes. Communication takes place under new thread, while UI thread pushes and pops ProgressDialogScreen.
The problem is sometimes, when response comes and ProgressDialogScreen is popped, UI does not change but after couple seconds UI changes. If you have requested in between when ProgressDialogScreen is popped and when new Screen is pushed, there comes the mess. First oldest new Screen is pushed, and the newest new Screen is pushed. And this situation can be observed like server responsing wrong requests. This problems occur on simulator and device.
The other problem is, sometimes two same response returns for one request. I was able to see these two problems on simulator at the logs, but i have not able to see this issue on device since i can not see the logs.
EDIT:
String utf8Response;
HttpConnection httpConn = null;
try{
httpConn = (HttpConnection) Connector.open(url);
httpConn.setRequestMethod(HttpConnection.GET);
httpConn.setRequestProperty("Content-Type", "text/html; charset=UTF8");
if(sessionIdCookie != null){
//may throw IOException, if the connection is in the connected state.
httpConn.setRequestProperty("Cookie", sessionIdCookie);
}
}catch (Exception e) {
//...
}
try{
httpConn.getResponseCode();
return httpConn;
}catch (IOException e) {
// ...
}
byte[] responseStr = new byte[(int)httpConn.getLength()];
DataInputStream strm = httpConn.openDataInputStream();
strm.readFully(responseStr);
try{
strm.close();
}catch (IOException e) {
// ....
}
utf8Response = new String(responseStr, "UTF-8");
If this code successfully run, this piece of code runs and new screen is pushed:
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
Vector accounts = Parser.parse(utf8Response,Parser.ACCOUNTS);
if (accounts.size() == 0){
DialogBox.inform(Account.NO_DEPOSIT);
return;
}
currentScreen = new AccountListScreen(accounts);
changeScreen(null,currentScreen);
}
});
public void changeScreen(final AbstractScreen currentScreen,final AbstractScreen nextScreen) {
if (currentScreen != null)
UiApplication.getUiApplication().popScreen(currentScreen);
if (nextScreen != null)
UiApplication.getUiApplication().pushScreen(nextScreen);
}
EDITv2:
private static void progress(final Stoppable runThis, String text,boolean cancelable) {
progress = new ProgressBar(runThis, text,cancelable);
Thread threadToRun = new Thread() {
public void run() {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
try{
UiApplication.getUiApplication().pushScreen(progress);
}catch(Exception e){
Logger.log(e);
}
}
});
try {
runThis.run();
} catch (Throwable t) {
t.printStackTrace();
}
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
try {
UiApplication.getUiApplication().popScreen(progress);
} catch (Exception e) { }
}
});
}
};
threadToRun.start();
}
By the way ProgressBar is extended from net.rim.device.api.ui.container.PopupScreen and Stoppable is extended from Runnable
I preferred to pop progress bar after new Screen is prepared and pushed. This way there will be no new request between request and response.
Why not do:
private static void progress(final Stoppable runThis, String text,boolean cancelable) {
progress = new ProgressBar(runThis, text,cancelable);
UiApplication.getUiApplication().pushScreen(progress);
[...]
Seems like you are parsing on the UI Thread. Please remove Vector accounts = Parser.parse(utf8Response,Parser.ACCOUNTS); from ui thread and do it in a separate thread.