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Pulsar Reader misses messages that were written when reader was offline


By : lyw245
Date : September 16 2020, 02:00 AM
I wish did fix the issue. With the Reader interface you have to keep track of the message IDs you are reading from the topic. Because you are using MessageId.latest, every time the client connects (for example, after a restart), it positions itself a the end of the topic. If you want to pick up where you left off, then you need to keep track of the last message ID received by the application and use that as startMessageId.
If you don't want to keep track of the message IDs, you can get Pulsar to do that for you by using the Consumer interface. With a Consumer you specify a subscription name which keeps track of your position in the topic. So if a client restarts when using the Consumer interface, you will pick up where you left off. See this page for more info.
code :


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How do you build a web-based RSS reader that doesn't mess up reader statistics for blog authors?


By : muluturk
Date : March 29 2020, 07:55 AM
may help you . As far as I know, Google Reader addresses the problem in this way: The user agent string of their client includes the number of subscribers reading this feed through their reader.
I don't know if FeedBurner or other tools interpret this, but it is at least theoretically possible to get accurate statistics from the http log files this way.
code :
User-Agent: Feedfetcher-Google; (+http://www.google.com/feedfetcher.html; 4 subscribers; feed-id=1794595805790851116)

Extract current page from Adobe Acrobat Reader and DejaVu Reader processes?


By : user2688796
Date : March 29 2020, 07:55 AM
it helps some times You may be able to do it via a the DDE protocol which is supported by Adobe Acrobat. Check the DDE Spec (Adobe Inter Proces Communication Support Paper) for Acrobat.
Now, if you are not familiar with DDE, let me give you a brief overview - it is a Microsoft (Windows) based IPC protocol similar to named pipes (Windows), COM(OLE), WCF, MSMQ (for IPC), RPC, etc.. Actually MSMQ is probably in my opinion the closest.
code :
<bleepzter/>

csv.reader misses first line


By : Hassan Raza
Date : March 29 2020, 07:55 AM
wish help you to fix your issue When you run your try, except statement, it is easy to believe that python will first try something, and if that fails, revert your environment back to the state it was in before the try statement was executed. It does not do this. As such, you have to be aware of unintended side effects that might occur from a failed try attempt.
What is happening in your case is that the dictionary comprehension calls next(...) on your csv.reader() object (csv_in), which returns the first line in the csv file. You have now used up the first item from the csv.reader() iterator. Remember, Python won't revert to a previous state if the try block fails.
code :
import datetime as dt
import csv
from copy import copy
with open(fileInput,'r') as inFile:
    csv_in = csv.reader(inFile)
    try:
        dictData = {(dt.datetime.strptime(rows[0],'%d/%m/%Y %H:%M')):
                      [rows[3],rows[4]] for rows in copy(csv_in)}
    except ValueError:
        dictData = {(dt.datetime.strptime(rows[0],'%Y-%m-%d %H:%M:%S')):
                      [rows[3],rows[4]] for rows in copy(csv_in)}

is it possible to use web view as a html reader (offline)?


By : Said Bengueid
Date : March 29 2020, 07:55 AM
seems to work fine You could just put the file into your assets folder in the source code, and then do this:
code :
WebView webView = (WebView)findViewById(R.id.webView1);
webview.loadUrl("file:///android_assets/file.html");
// create a new renderer
PdfRenderer renderer = new PdfRenderer(getSeekableFileDescriptor());

// let us just render all pages
final int pageCount = renderer.getPageCount();
for (int i = 0; i < pageCount; i++) {
  Page page = renderer.openPage(i);

  // say we render for showing on the screen
  page.render(mBitmap, null, null, Page.RENDER_MODE_FOR_DISPLAY);

  // do stuff with the bitmap

  // close the page
  page.close();
}

// close the renderer
renderer.close();
pdfView.fromUri(Uri)
or
pdfView.fromFile(File)
or
pdfView.fromAsset(String)
    .pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default
    .enableSwipe(true)
    .swipeHorizontal(false)
    .enableDoubletap(true)
    .defaultPage(0)
    .onDraw(onDrawListener)
    .onLoad(onLoadCompleteListener)
    .onPageChange(onPageChangeListener)
    .onPageScroll(onPageScrollListener)
    .onError(onErrorListener)
    .enableAnnotationRendering(false)
    .password(null)
    .scrollHandle(null)
    .load();

How do I inject a buffered reader into a class with a file reader as its parameter using Spring boot?


By : Okum
Date : March 29 2020, 07:55 AM
hope this fix your issue If you want to mock the class which have the below line inside a method.
code :
BufferedReader reader = new BufferedReader(new FileReader("somePath"));
@MockBean
private TestClass testClass;

when(testClass.readFile()).thenReturn(content);
    @Bean
BufferedReader reader(@Value("${filename}") String fileName) throws FileNotFoundException{

    return new BufferedReader(new FileReader(fileName));
}
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