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Looking at the preceding example, note that there is a performance cost associated with the acquire and release calls. There is a similar cost for using mutexes and read-write locks, so it can sometimes give a performance boost to split the transmitted data into chunks. For example, it might have been quicker to send the string as words instead of character by character, which would mean acquiring space for several characters at once in the producer thread instead of one at a time and doing slightly more processing each time. This would, of course, introduce the performance penalty that the buffer isn t always fully used because the producer would sometimes block even if there is free space in the buffer.

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UPC-A - Barcode4J - SourceForge
The configuration for the default implementation is: <barcode> < upc-a > <height>{ length:15mm}</height> <module-width>{length:0.33mm}</module-width> ...

Pylons provides powerful unit testing capabilities for your web application utilizing paste.fixture (documented at http://pythonpaste.org/testing-applications.html#the-tests-themselves) to emulate requests to your web application. Pylons integrates paste.fixture with nose so that you can test Pylons applications using the same techniques you learned for nose in the previous section.

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Java UPC-A Generator | Barcode UPCA Generation in Java Class ...
UPC-A is also known as Universal Product Code version A, UPC-A Supplement 5/Five-digit Add-On, UPC-A Supplement 2/Two-digit Add-On, UPC-A +5, ...

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Generate and draw UPC-A for Java
Integrate UPC-A barcode generation function to Java applications for drawing UPC-A in Java .

You can read more about overprovisioning and other approaches to mitigating DoS attacks in Internet Denial of Service Attack and Defense Mechanisms, by Jelena Mirkovic et al Accountability: To ensure accountability, every time Alice places an order from the DVD-Factory web site, it produces a log entry so that Alice cannot later claim to have not ordered the DVDs This may sound a bit like non-repudiation, but it is actually accountability, since the goal is to simply keep a log of what Alice has and has not done Non-repudiation: It is possible for DVD-Factory to cheat and report that Alice ordered more DVDs than she actually did If the web browser and web site run a non-repudiation protocol, it is then possible for Alice to prove to a third party that she only ordered, say, 10 DVDs, and not the 12 that DVD-Factory may claim she ordered..

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racca3141/UPC: Build a UPC-A label. - GitHub
27 Apr 2018 ... UPCMain . java is a command line program that takes in a 12 digit number and checks to see if it is a valid UPC-A barcode. It does this by ...

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Java UPC-A Barcodes Generator for Java, J2EE, JasperReports ...
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A common version of the producer-consumer scenario is to have several producers serving a consumer with data For example, you can have several working threads providing data for the main thread The main thread is the only thread that can update the user interface, so it is logical to make it a consumer (it can also be a producer a thread can be both a producer and consumer at the same time) There are two issues that you need to deal with before you can use several TextProducer objects with the TextConsumer class presented in Listing 12-20 The first issue is the atEnd flag, which needs to be converted into a semaphore It will be released in the TextProducer constructor and acquired when the producer runs out of data in the run method In the consumer, the while loop cannot check for atEnd; atEndavailable() is used instead.

Note It is likely that at some point Pylons will switch to using the newer WebTest package, but since WebTest is simply an upgrade of paste.fixture with some better support for Pylons newer request and response objects, the upgrade shouldn t introduce huge changes, and therefore the contents of this section should still largely apply.

To demonstrate functional testing with paste.fixture, let s write some tests for the SimpleSite application. If you look at the SimpleSite project, you ll notice the tests directory. Within it is a functional directory for functional tests that should contain one file for each controller in your application. These are generated automatically when you use the paster controller command to add a controller to a Pylons project. To get started, update the tests/functional/test_page.py file that was generated when you created the page controller so that it looks like this: from simplesite.tests import * class TestPageController(TestController): def test_view(self): response = self.app.get(url_for(controller='page', action='view', id=1)) assert 'Home' in response The page controller doesn t have an index() action because you replaced it as part of the tutorial in 8, so the previous example tests the view() action instead. The self.app object is a Web Server Gateway Interface application representing the whole Pylons application, but it is wrapped in a paste.fixture.TestApp object (documented at http:// pythonpaste.org/modules/fixture.html). This means the self.app object has the methods get(), post(), put(), delete(), do_request(), encode_multipart(), and reset(). Unless you are doing something particularly clever, you would usually just use get() and post(), which simulate GET and POST requests, respectively. get(url, params=None, headers=None, extra_environ=None, status=None, expect_errors=False): This gets the URL path specified by url using a GET request and returns a response object. params: A query string, or a dictionary that will be encoded into a query string. You may also include a query string on the url argument. headers: A dictionary of extra headers to send. extra_environ: A dictionary of environmental variables that should be added to the request.

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BE THE CODER > Barcodes > Barcode4j Examples > Barcode UPC-A
Barcode4J is a free and flexible Java library for Barcode generation. This requires the ... in classpath. The following example shows generating UPC-A Barcode.

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UPC-A Java Barcode Generator/Class Library - TarCode.com
UPC-A barcode generator can print UPC-A and saved it as GIF and JPEG images using Java class library. Generated UPC-A barcode images can be displayed ...

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