Search Results

Search found 12061 results on 483 pages for 'non printable'.

Page 345/483 | < Previous Page | 341 342 343 344 345 346 347 348 349 350 351 352  | Next Page >

  • Strategy for avoiding duplicate object ids for data shared across devices using iCloud

    - by rmaddy
    I have a data intensive iOS app that is not using CoreData nor does it support iCloud synching (yet). All of my objects are created with unique keys. I use a simple long long initialized with the current time. Then as I need a new key I increment the value by 1. This has all worked well for a few years with the app running isolated on a single device. Now I want to add support for automatic data sync across devices using iCloud. As my app is written, there is the possibility that two objects created on two different devices could end up with the same key. I need to avoid this possibility. I'm looking for ideas for solving this issue. I have a few requirements that the solution must meet: 1) The key needs to remain a single integral data type. Converting all existing keys to a compound key or to a string or other type would affect the entire code base and likely result in more bugs than it's worth. 2) The solution can't depend on an Internet connection. A user must be able to run the app and add data even with no Internet connection. The data should still resolve properly later when the data syncs through iCloud once a connection is available. I'll accept one exception to this rule. If no other option is available, I may be open to requiring an Internet connection the first time the app's data is initialized. One idea I have been toying around with in my head is logically splitting the integer key into two parts. The high 4 or 5 bits could be used as some sort of device id while the rest represents the actual key. The fuzzy part is figuring out how to come up with non-conflicting device ids that fit in a few bits. This should be viable since I don't need to deal will millions of devices. I just need to deal with the few devices that would be shared by a given iCloud account. I'm open to suggestions. Thanks.

    Read the article

  • PHP - Internal APIs/Libraries - What makes sense?

    - by Mark Locker
    I've been having a discussion lately with some colleagues about the best way to approach a new project, and thought it'd be interesting to get some external thoughts thrown into the mix. Basically, we're redeveloping a fairly large site (written in PHP) and have differing opinions on how the platform should be setup. Requirements: The platform will need to support multiple internal websites, as well as external (non-PHP) projects which at the moment consist of a mobile app and a toolbar. We have no plans/need in the foreseeable future to open up an API externally (for use in products other than our own). My opinion: We should have a library of well documented native model classes which can be shared between projects. These models will represent everything in our database and can take advantage of object orientated features such as inheritance, traits, magic methods, etc. etc. As well as employing ORM. We can then add an API layer on top of these models which can basically accept requests and route them to the appropriate methods, translating the response so that it can be used platform independently. This routing for each method can be setup as and when it's required. Their opinion: We should have a single HTTP API which is used by all projects (internal PHP ones or otherwise). My thoughts: To me, there are a number of issues with using the sole HTTP API approach: It will be very expensive performance wise. One page request will result in several additional http requests (which although local, are still ones that Apache will need to handle). You'll lose all of the best features PHP has for OO development. From simple inheritance, to employing the likes of ORM which can save you writing a lot of code. For internal projects, the actual process makes me cringe. To get a users name, for example, a request would go out of our box, over the LAN, back in, then run through a script which calls a method, JSON encodes the output and feeds that back. That would then need to be JSON decoded, and be presented as an array ready to use. Working with arrays, as appose to objects, makes me sad in a modern PHP framework. Their thoughts (and my responses): Having one method of doing thing keeps things simple. - You'd only do things differently if you were using a different language anyway. It will become robust. - Seeing as the API will run off the library of models, I think my option would be just as robust. What do you think? I'd be really interested to hear the thoughts of others on this, especially as opinions on both sides are not founded on any past experience.

    Read the article

  • Website directory structure regarding subdomains, www, and "global" content

    - by Pawnguy7
    I am trying to make a homemade HTTP server. It occurs to me, though, I never fully understood what you might call "relativity" among web pages. I have come across that www. is a subdomain, and I understand its original purpose. IT sounds like, in general, you would redirect (is that 301 or 302?) it to a... non-subdomain, sort of. As in, redirecting www.example.com to example.com. I am not entirely sure how to make this work when retrieving files for an HTTP server though. I would assume that example.com would be the root, and www manifests as a folder within it. I am unsure. There is also the question of multi-level subdomains, e.g. subdomain2.subdomain1.example.com. It seems to me they are structured "backwards", where you go from the root left in folder structure. In this situation, subdomain2 is a directory within subdomain1, which is a directory in the root. Finally, it occurs to me I might want a sort of global location. For example, maybe all subdomains still use an image as a logo. It makes more sense to me that there is one image, rather than each having a copy. In the same way, albiet more doubtfully, you might have global CSS (though that is a bit contrary to the idea of a subdomain in the first place), or a javascript that is commonly used. (more efficient than each having its copy and better for organization purposes). Finally, mabye you have a global 404 page. I think this might be the case where you have user-created subdomains (say bloggername.example.com), where example.com still has a default 404 when either a subdomain does not exist or page does not exists under a valid blogger. I am confused on what the directory structure for this should be. To summarize: Should and how it have a global files not in a subdirectory, how should www. be handled, (or how a now www or other subdomain should be handled), and the pattern for root/subdomain, as well as subdomain within subdomains (order-wise). Sorry this is multiple questions, but I feel at the root they are all related to the directory.

    Read the article

  • Practices for domain models in Javascript (with frameworks)

    - by AndyBursh
    This is a question I've to-and-fro'd with for a while, and searched for and found nothing on: what're the accepted practices surrounding duplicating domain models in Javascript for a web application, when using a framework like Backbone or Knockout? Given a web application of a non-trivial size with a set of domain models on the server side, should we duplicate these models in the web application (see the example at the bottom)? Or should we use the dynamic nature to load these models from the server? To my mind, the arguments for duplicating the models are in easing validation of fields, ensuring that fields that expected to be present are in fact present etc. My approach is to treat the client-side code like an almost separate application, doing trivial things itself and only relying on the server for data and complex operations (which require data the client-side doesn't have). I think treating the client-side code like this is akin to separation between entities from an ORM and the models used with the view in the UI layer: they may have the same fields and relate to the same domain concept, but they're distinct things. On the other hand, it seems to me that duplicating these models on the server side is a clear violation of DRY and likely to lead to differing results on the client- and server-side (where one piece gets updated but the other doesn't). To avoid this violation of DRY we can simply use Javascripts dynamism to get the field names and data from the server as and when they're neeed. So: are there any accepted guidelines around when (and when not) to repeat yourself in these situations? Or this a purely subjective thing, based on the project and developer(s)? Example Server-side model class M { int A DateTime B int C int D = (A*C) double SomeComplexCalculation = ServiceLayer.Call(); } Client-side model function M(){ this.A = ko.observable(); this.B = ko.observable(); this.C = ko.observable(); this.D = function() { return A() * C(); } this.SomeComplexCalculation = ko.observalbe(); return this; }l M.GetComplexValue = function(){ this.SomeComplexCalculation(Ajax.CallBackToServer()); }; I realise this question is quite similar to this one, but I think this is more about almost wholly untying the web application from the server, where that question is about doing this only in the case of complex calculation.

    Read the article

  • Why is Java the lingua franca at so many institutions?

    - by Billy ONeal
    EDIT: This question at first seems to be bashing Java, and I guess at this point it is a bit. However, the bigger point I am trying to make is why any one single language is chosen as the one end all be all solution to all problems. Java happens to be the one that's used so that's the one I had to beat on here, but I'm not intentionality ripping Java a new one :) I don't like Java in most academic settings. I'm not saying the language itself is bad -- it has several extremely desirable aspects, most importantly the ability to run without recompilation on most any platform. Nothing wrong with using the language for Your Next App ^TM. (Not something I would personally do, but that's more because I have less experience with it, rather than it's design being poor) I think it is a waste that high level CS courses are taught using Java as a language. Too many of my co-students cannot program worth a damn, because they don't know how to work in a non-garbage-collected world. They don't fundamentally understand the machines they are programming for. When someone can work outside of a garbage collected world, they can work inside of one, but not vice versa. GC is a tool, not a crutch. But the way it is used to teach computer science students is a as a crutch. Computer science should not teach an entire suite of courses tailored to a single language. Students leave with the idea that all good design is idiomatic Java design, and that Object Oriented Design is the ONE TRUE WAY THAT IS THE ONLY WAY THINGS CAN BE DONE. Other languages, at least one of them not being a garbage collected language, should be used in teaching, in order to give the graduate a better understanding of the machines. It is an embarrassment that somebody with a PHD in CS from a respected institution cannot program their way out of a paper bag. What's worse, is that when I talk to those CS professors who actually do understand how things operate, they share feelings like this, that we're doing a disservice to our students by doing everything in Java. (Note that the above would be the same if I replaced it with any other language, generally using a single language is the problem, not Java itself) In total, I feel I can no longer respect any kind of degree at all -- when I can't see those around me able to program their way out of fizzbuzz problems. Why/how did it get to be this way?

    Read the article

  • Why doesn't Ubuntu detect my second hard drive?

    - by user93179
    I am new to Linux and to Ubuntu, I was wondering, I have two hard drives setup in SATA ports (non-raid, at least I don't think they are). I installed ubuntu unto the drives fresh without any previous versions or windows at all. However when I got the Ubuntu 12.04 LTS working, all I see is 1 x 120 gigabyte harddrive. Also, not sure if this is important or not, my hard drives are SSD. My computer specs are Asus P9Z77-V-LK Nvidia Geforce GTX 660 TI Intel i5 3570k 3.4 /proc/partitions shows: major minor #blocks name 8 0 117220824 sda 8 1 117219328 sda1 8 16 117220824 sdb 8 17 96256 sdb1 8 18 108780544 sdb2 8 19 8342528 sdb3 11 0 1048575 sr0 and ls -l /sys/block/ | grep -v /virtual/: lrwxrwxrwx 1 root root 0 Sep 27 17:26 sda - ../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda lrwxrwxrwx 1 root root 0 Sep 27 17:26 sdb - ../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sdb lrwxrwxrwx 1 root root 0 Sep 27 22:26 sdc - ../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/host6/target6:0:0/6:0:0:0/block/sdc lrwxrwxrwx 1 root root 0 Sep 27 22:04 sr0 - ../devices/pci0000:00/0000:00:1f.2/host3/target3:0:0/3:0:0:0/block/sr0 sudo file -s /dev/sd*: /dev/sda: x86 boot sector; partition 1: ID=0x7, starthead 32, startsector 2048, 234438656 sectors, code offset 0xc0, OEM-ID " ?", Bytes/sector 190, sectors/cluster 124, reserved sectors 191, FATs 6, root entries 185, sectors 64514 (volumes 32 MB) , physical drive 0x7e, dos 32 MB) , FAT (32 bit), sectors/FAT 749, reserved3 0x800000, serial number 0x35361a2b, unlabeled /dev/sdb2: Linux rev 1.0 ext4 filesystem data, UUID=387761ac-5eba-4d0f-93ba-746a82fb541d (needs journal recovery) (extents) (large files) (huge files) /dev/sdb3: data /dev/sdc: x86 boot sector; partition 1: ID=0xc, active, starthead 0, startsector 8064, 30473088 sectors, code offset 0xc0 /dev/sdc1: x86 boot sector, code offset 0x58, OEM-ID "SYSLINUX", sectors/cluster 64, reserved sectors 944, Media descriptor 0xf8, heads 128, hidden sectors 8064, sectors 30473088 (volumes 32 MB) , FAT (32 bit), sectors/FAT 3720, Backup boot sector 8, serial number 0xf90c12e9, label: "KINGSTON " /dev/sda1: x86 boot sector, code offset 0x52, OEM-ID "NTFS ", sectors/cluster 8, reserved sectors 0, Media descriptor 0xf8, heads 255, hidden sectors 2048, dos 32 MB) , FAT (32 bit), sectors/FAT 749, reserved3 0x800000, serial number 0x35361a2b, unlabeled Any help would be greatly appreciated! Thanks Another thing I noticed is, when i use gparted to locate my drives, it seems that sda1 is my second drive that I am not detecting when I boot up and my ubuntu + FAT Boot files are installed in sdb1

    Read the article

  • Boot error aftter clean Ubuntu 13.04 install: [Reboot and select proper boot device]

    - by IcarusNM
    I am having the same problem as this guy where a fresh Ubuntu install completes beautifully but will not boot. I get the ASUS (?) "Reboot and select proper boot device" error, first with Xubuntu 13.10 and after finally giving up there, and Xubuntu 13.4, I am back to regular Ubuntu 13.4. ASUS motherboard Z77, Intel chipset. Standard internal SATA 500GB HD. 64-bit. All-new hardware less than 3 months old. It was running Ubuntu 12.04LTC great until I tried this upgrade. I have re-installed from scratch every which way: with LVM, without LVM; with the default partitions, with my own partitions. With ext3 or ext4. Alongside; replace; upgrade. No difference. On the last two tries, I have booted afterward from the same USB stick, downloaded and run boot-repair, and now I guess I am off to the boot-repair support email with my URLs from that. It did all kinds of cool stuff but ultimately made no difference. I never got anything like this with Ubuntu 12.04. I've now probably re-installed Ubuntu 13.04 ten times slightly different ways. I finally found how to skip the language packs, so at least that sped things up! :) This starts from the ubuntu-13.04-desktop-amd64.iso and UNetbootin as suggested on the official instructions for USB thumb drive creation from OSX. That part all works fine (booting the USB on the PC and trying Ubuntu and/or installing from there on the PC HD.) I have no CD drive on this PC, but I suppose I could get one. I would rather find some Linux install that works from USB like I've always done. After running boot-repair twice, in the ASUS BIOS I now see three different UEFI boot options in the priority list, and they are all labeled exactly the same: ubuntu (P6: WDC WD5000AAKX-00U6AA0) Then there's a non-UEFI option: P6: WDC WD5000AAKX-00U6AA0 (476940MB) And a fifth option appeared after the first boot-repair: Windows Boot Manager (P6: WDC WD5000AAKX-00U6AA0) I have tried all 5 of these, and I get exactly the same error. I have never had Windows installed on this HD. ASUS is calling it Windows Boot Manaer but I presume that's a mistaken label for whatever boot-repair did. I can boot on USB and run GParted and it looks great. The partitions all look normal. I found another case of this online with no solution posted. I can't find much about it online. Needs a Master Boot Record wipe/redo?? I'm not sure how.

    Read the article

  • C Programming arrays, I dont understand how I would go about making this program, If anyone can just guide me through the basic outline please :) [on hold]

    - by Rashmi Kohli
    Problem The temperature of a car engine has been measured, from real-world experiments, as shown in the table and graph below: Time (min) Temperature (oC) 0 20 1 36 2 61 3 68 4 77 5 110 Use linear regression to find the engine’s temperature at 1.5 minutes, 4.3 minutes, and any other time specified by the user. Background In engineering, many times we measure several data points in an experiment, but then we need to predict a value that we have not measured which lies between two measured values, such as the problem statement above. If the relation between the measured parameters seems to be roughly linear, then we can use linear regression to find the relationship between those parameters. In the graph of the problem statement above, the relation seems to be roughly linear. Hence, we can apply linear regression to the above problem. Assuming y {y0, y1, …yn-1} has a linear relation with x {x0, x1, … xn-1}, we can say that: y = mx+b where m and b can be found with linear regression as follows: For the problem in this lab, using linear regression gives us the following line (in blue) compared to the measured curve (in red). As you can see, there is usually a difference between the measured values and the estimated (predicted) values. What linear regression does is to minimize those differences and still give us a straight line (blue). Other methods, such as non-linear regression, are also possible to achieve higher accuracy and better curve fitting. Requirements Your program should first print the table of the temperatures similar to the way it’s printed in the problem statement. It should then calculate the temperature at minute 1.5 and 4.3 and show the answers to the user. Next, it should prompt the user to enter a time in minutes (or -1 to quit), and after reading the user’s specified time it should give the value of the engine’s temperature at that time. It should then go back to the prompt. Hints •Use a one dimensional array to store the temperature values given in the problem statement. •Use functions to separate tasks such as calculating m, calculating b, calculating the temperature at a given time, printing the prompt, etc. You can then give your algorithm as well as you pseudo code per function, as opposed to one large algorithm diagram or one large sequence of pseudo code.

    Read the article

  • Multi-threaded JOGL Problem

    - by moeabdol
    I'm writing a simple OpenGL application in Java that implements the Monte Carlo method for estimating the value of PI. The method is pretty easy. Simply, you draw a circle inside a unit square and then plot random points over the scene. Now, for each point that is inside the circle you increment the counter for in points. After determining for all the random points wither they are inside the circle or not you divide the number of in points over the total number of points you have plotted all multiplied by 4 to get an estimation of PI. It goes something like this PI = (inPoints / totalPoints) * 4. This is because mathematically the ratio of a circle's area to a square's area is PI/4, so when we multiply it by 4 we get PI. My problem doesn't lie in the algorithm itself; however, I'm having problems trying to plot the points as they are being generated instead of just plotting everything at once when the program finishes executing. I want to give the application a sense of real-time display where the user would see the points as they are being plotted. I'm a beginner at OpenGL and I'm pretty sure there is a multi-threading feature built into it. Non the less, I tried to manually create my own thread. Each worker thread plots one point at a time. Following is the psudo-code: /* this part of the code exists in display() method in MyCanvas.java which extends GLCanvas and implements GLEventListener */ // main loop for(int i = 0; i < number_of_points; i++){ RandomGenerator random = new RandomGenerator(); float x = random.nextFloat(); float y = random.nextFloat(); Thread pointThread = new Thread(new PointThread(x, y)); } gl.glFlush(); /* this part of the code exists in run() method in PointThread.java which implements Runnable */ void run(){ try{ gl.glPushMatrix(); gl.glBegin(GL2.GL_POINTS); if(pointIsIn) gl.glColor3f(1.0f, 0.0f, 0.0f); // red point else gl.glColor3f(0.0f, 0.0f, 1.0f); // blue point gl.glVertex3f(x, y, 0.0f); // coordinates gl.glEnd(); gl.glPopMatrix(); }catch(Exception e){ } } I'm not sure if my approach to solving this issue is correct. I hope you guys can help me out. Thanks.

    Read the article

  • A Simple Entity Tagger

    - by Elton Stoneman
    In the REST world, ETags are your gateway to performance boosts by letting clients cache responses. In the non-REST world, you may also want to add an ETag to an entity definition inside a traditional service contract – think of a scenario where a consumer persists its own representation of your entity, and wants to keep it in sync. Rather than load every entity by ID and check for changes, the consumer can send in a set of linked IDs and ETags, and you can return only the entities where the current ETag is different from the consumer’s version.  If your entity is a projection from various sources, you may not have a persistent ETag, so you need an efficient way to generate an ETag which is deterministic, so an entity with the same state always generates the same ETag. I have an implementation for a generic ETag generator on GitHub here: EntityTagger code sample. The essence is simple - we get the entity, serialize it and build a hash from the serialized value. Any changes to either the state or the structure of the entity will result in a different hash. To use it, just call SetETag, passing your populated object and a Func<> which acts as an accessor to the ETag property: EntityTagger.SetETag(user, x => x.ETag); The implementation is all in at 80 lines of code, which is all pretty straightforward: var eTagProperty = AsPropertyInfo(eTagPropertyAccessor); var originalETag = eTagProperty.GetValue(entity, null); try { ResetETag(entity, eTagPropertyAccessor); string json; var serializer = new DataContractJsonSerializer(entity.GetType()); using (var stream = new MemoryStream()) { serializer.WriteObject(stream, entity); json = Encoding.UTF8.GetString(stream.GetBuffer(), 0, (int)stream.Length); } var guid = GetDeterministicGuid(json); eTagProperty.SetValue(entity, guid.ToString(), null); //... There are a couple of helper methods to check if the object has changed since the ETag value was last set, and to reset the ETag. This implementation uses JSON to do the serializing rather than XML. Benefit - should be marginally more efficient as your hashing a much smaller serialized string; downside, JSON doesn't include namespaces or class names at the root level, so if you have two classes with the exact same structure but different names, then instances which have the same content will have the same ETag. You may want that behaviour, but change to use the XML DataContractSerializer if you think that will be an issue. If you can persist the ETag somewhere, it will save you server processing to load up the entity, but that will only apply to scenarios where you can reliably invalidate your ETag (e.g. if you control all the entry points where entity contents can be updated, then you can calculate and persist the new ETag with each update).

    Read the article

  • "Whole-team" C++ features?

    - by Blaisorblade
    In C++, features like exceptions impact your whole program: you can either disable them in your whole program, or you need to deal with them throughout your code. As a famous article on C++ Report puts it: Counter-intuitively, the hard part of coding exceptions is not the explicit throws and catches. The really hard part of using exceptions is to write all the intervening code in such a way that an arbitrary exception can propagate from its throw site to its handler, arriving safely and without damaging other parts of the program along the way. Since even new throws exceptions, every function needs to provide basic exception safety — unless it only calls functions which guarantee throwing no exception — unless you disable exceptions altogether in your whole project. Hence, exceptions are a "whole-program" or "whole-team" feature, since they must be understood by everybody in a team using them. But not all C++ features are like that, as far as I know. A possible example is that if I don't get templates but I do not use them, I will still be able to write correct C++ — or will I not?. I can even call sort on an array of integers and enjoy its amazing speed advantage wrt. C's qsort (because no function pointer is called), without risking bugs — or not? It seems templates are not "whole-team". Are there other C++ features which impact code not directly using them, and are hence "whole-team"? I am especially interested in features not present in C. Update: I'm especially looking for features where there's no language-enforced sign you need to be aware of them. The first answer I got mentioned const-correctness, which is also whole-team, hence everybody needs to learn about it; however, AFAICS it will impact you only if you call a function which is marked const, and the compiler will prevent you from calling it on non-const objects, so you get something to google for. With exceptions, you don't even get that; moreover, they're always used as soon as you use new, hence exceptions are more "insidious". Since I can't phrase this as objectively, though, I will appreciate any whole-team feature. Appendix: Why this question is objective (if you wonder) C++ is a complex language, so many projects or coding guides try to select "simple" C++ features, and many people try to include or exclude some ones according to mostly subjective criteria. Questions about that get rightfully closed regularly here on SO. Above, instead, I defined (as precisely as possible) what a "whole-team" language feature is, provide an example (exceptions), together with extensive supporting evidence in the literature about C++, and ask for whole-team features in C++ beyond exceptions. Whether you should use "whole-team" features, or whether that's a relevant concept, might be subjective — but that only means the importance of this question is subjective, like always.

    Read the article

  • Can my machine run Ubuntu( kubuntu | xubuntu | mint ) 12.04 WELL?

    - by Steve
    I have a 9 year old computer packing the hardware listed below. My question is, can I run 12.04 ( Ubuntu, Kubuntu, MINT or Xubuntu ) WELL? I was running Ubuntu 10.10 and I upgraded to 12.04 by going through each release via the update manager: 11.04 - 11.10 -12.04 During the installation process for 12.04 I saw an error message that there was an error installing and setting up part of the kernel. Later, when I tried installing a package in synaptic, I got another error message mentioning the kernel. When I rebooted, I got told somehting about my video and graphics was not configured properly and that I would have to do it manually ( like I know ). It gave me the option to enter the system in low graphics mode, but it just hanged. I had an old livecd of Xubuntu 10.10 around so I used that to get into my computer and copy data over to an external hard drive. I think tried to install Xubuntu 10.10 from the livecd, with the option "download updates" checked. The install process moved along a bit, then halted for about 5 hours. I rebooted my machine and tried the Xubuntu 10.10 installer WITHOUT the option to "download updates". The install completed in about 15 minutes. So, all of that is making me wonder if there is someting about 12.04 that does not like my hardware. I'm willing to try again, but only if I know I will not have to spend hours just to get to an error message and a hosed up system like I did last night. I also think I have a lot more RAM than is being reported in the output below. I had extra ram installed last year. I'm not good with the command line readouts, but there seems like there should be a lot more. I wasn't thrilled with Unity. I am willing to try Kubuntu 12.04. Will I run into the same problems? What is the highest version of a *ubuntu can I upgrade to? Thanks CPU Model: Intel(R) Pentium(R) 4 CPU 2.53GHz Frequency: 2533.223 MHz L2 Cache: 512 KB Bogomips: 5066.44 Numbering: family(15) model(2) stepping(7) Flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe up pebs bts cid RAM ~$ free -mt total used free shared buffers cached Mem: 1506 891 615 0 91 521 -/+ buffers/cache: 278 1227 Swap: 1609 0 1609 Total: 3116 891 2225 Video Card 01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. V9180 Magic Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 16 Memory at fd000000 (32-bit, non-prefetchable) [size=16M] Memory at f0000000 (32-bit, prefetchable) [size=64M] Expansion ROM at fe9e0000 [disabled] [size=128K] Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb Motherboard Intel 845PE ATX 533FSB DDR333 USB2

    Read the article

  • Ad-hoc reporting similar to Microstrategy/Pentaho - is OLAP really the only choice (is OLAP even sufficient)?

    - by TheBeefMightBeTough
    So I'm getting ready to develop an API in Java that will provide all dimensions, metrics, hierarchies, etc to a user such that they can pick and choose what they want (say, e.g., dimensions of Location (a store) and Weekly, and the metric Product Sales $), provide their choices to the api, and have it spit out an object that contains the answer to their question (the object would probably be a set of cells). I don't even believe there will be much drill up/down. The data warehouse the APIwill interface with is in a standard form (FACT tables, dimensions, star schema format). My question is, is an OLAP framework such as Mondrian the only way to achieve something akin to ad-hoc reporting? I can envisage a really large Cube (or VirtualCube) that contains most of the dimensions and metrics the user could ever want, which would give the illusion of ad-hoc reporting. The problem is that there is a ton of setup to do (so much XML) to get the framework to work with the data. Further it requires specific knowledge, such as MDX, and even moreso learning the framework peculiars (Mondrian API). Finally, I am not positive it will scale much better than simply making queries against a SQL database. OLAP to me feels like very old technology. Is performance really an issue anymore? The alternative I can think of would be dynamic SQL. If the existing tables in the data warehouse conform to a naming scheme (FACT_, DIM_, etc), or if a very simple config file/ database table containing config information existed that stored which tables are fact tables, which are dimensions, and what metrics are available, then couldn't the api read from that and assembly the appropriate sql query? Would this necessarily be harder than learning MDX, Mondrian (or another OLAP framework), and creating all the cubes? In general, I feel that OLAP is at the same time too powerful (supports drill up/down, complex functions) and outdated and am reluctant to base my architecture on it. However, I am unsure if the alternative(s), such as rolling my own ad-hoc reporting framework using dynamic SQL would remove any complexity while still fulfilling requirements, both functional and non-functional (e.g., scalability; some FACT tables have many millions of rows). I also wonder about other techniques (e.g., hive). Has anyone here tried to do ad-hoc reporting? Any advice? I expect this project to take a pretty long time (3 months min, but probably longer), so I just do not want to commit to an architecture without being absolutely sure of its pros and cons. Thanks so much.

    Read the article

  • The term "interface" in C++

    - by Flexo
    Java makes a clear distinction between class and interface. (I believe C# does also, but I have no experience with it). When writing C++ however there is no language enforced distinction between class and interface. Consequently I've always viewed interface as a workaround for the lack of multiple inheritance in Java. Making such a distinction feels arbitrary and meaningless in C++. I've always tended to go with the "write things in the most obvious way" approach, so if in C++ I've got what might be called an interface in Java, e.g.: class Foo { public: virtual void doStuff() = 0; ~Foo() = 0; }; and I then decided that most implementers of Foo wanted to share some common functionality I would probably write: class Foo { public: virtual void doStuff() = 0; ~Foo() {} protected: // If it needs this to do its thing: int internalHelperThing(int); // Or if it doesn't need the this pointer: static int someOtherHelper(int); }; Which then makes this not an interface in the Java sense anymore. Instead C++ has two important concepts, related to the same underlying inheritance problem: virtual inhertiance Classes with no member variables can occupy no extra space when used as a base "Base class subobjects may have zero size" Reference Of those I try to avoid #1 wherever possible - it's rare to encounter a scenario where that genuinely is the "cleanest" design. #2 is however a subtle, but important difference between my understanding of the term "interface" and the C++ language features. As a result of this I currently (almost) never refer to things as "interfaces" in C++ and talk in terms of base classes and their sizes. I would say that in the context of C++ "interface" is a misnomer. It has come to my attention though that not many people make such a distinction. Do I stand to lose anything by allowing (e.g. protected) non-virtual functions to exist within an "interface" in C++? (My feeling is the exactly the opposite - a more natural location for shared code) Is the term "interface" meaningful in C++ - does it imply only pure virtual or would it be fair to call C++ classes with no member variables an interface still?

    Read the article

  • Added splash screen code to my package

    - by Youssef
    Please i need support to added splash screen code to my package /* * T24_Transformer_FormView.java */ package t24_transformer_form; import org.jdesktop.application.Action; import org.jdesktop.application.ResourceMap; import org.jdesktop.application.SingleFrameApplication; import org.jdesktop.application.FrameView; import org.jdesktop.application.TaskMonitor; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.filechooser.FileNameExtensionFilter; import javax.swing.filechooser.FileFilter; // old T24 Transformer imports import java.io.File; import java.io.FileWriter; import java.io.StringWriter; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.Iterator; //import java.util.Properties; import java.util.StringTokenizer; import javax.swing.; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.apache.log4j.Logger; import org.apache.log4j.PropertyConfigurator; import org.w3c.dom.Document; import org.w3c.dom.DocumentFragment; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.ejada.alinma.edh.xsdtransform.util.ConfigKeys; import com.ejada.alinma.edh.xsdtransform.util.XSDElement; import com.sun.org.apache.xml.internal.serialize.OutputFormat; import com.sun.org.apache.xml.internal.serialize.XMLSerializer; /* * The application's main frame. */ public class T24_Transformer_FormView extends FrameView { /**} * static holders for application-level utilities * { */ //private static Properties appProps; private static Logger appLogger; /** * */ private StringBuffer columnsCSV = null; private ArrayList<String> singleValueTableColumns = null; private HashMap<String, String> multiValueTablesSQL = null; private HashMap<Object, HashMap<String, Object>> groupAttrs = null; private ArrayList<XSDElement> xsdElementsList = null; /** * initialization */ private void init() /*throws Exception*/ { // init the properties object //FileReader in = new FileReader(appConfigPropsPath); //appProps.load(in); // log4j.properties constant String PROP_LOG4J_CONFIG_FILE = "log4j.properties"; // init the logger if ((PROP_LOG4J_CONFIG_FILE != null) && (!PROP_LOG4J_CONFIG_FILE.equals(""))) { PropertyConfigurator.configure(PROP_LOG4J_CONFIG_FILE); if (appLogger == null) { appLogger = Logger.getLogger(T24_Transformer_FormView.class.getName()); } appLogger.info("Application initialization successful."); } columnsCSV = new StringBuffer(ConfigKeys.FIELD_TAG + "," + ConfigKeys.FIELD_NUMBER + "," + ConfigKeys.FIELD_DATA_TYPE + "," + ConfigKeys.FIELD_FMT + "," + ConfigKeys.FIELD_LEN + "," + ConfigKeys.FIELD_INPUT_LEN + "," + ConfigKeys.FIELD_GROUP_NUMBER + "," + ConfigKeys.FIELD_MV_GROUP_NUMBER + "," + ConfigKeys.FIELD_SHORT_NAME + "," + ConfigKeys.FIELD_NAME + "," + ConfigKeys.FIELD_COLUMN_NAME + "," + ConfigKeys.FIELD_GROUP_NAME + "," + ConfigKeys.FIELD_MV_GROUP_NAME + "," + ConfigKeys.FIELD_JUSTIFICATION + "," + ConfigKeys.FIELD_TYPE + "," + ConfigKeys.FIELD_SINGLE_OR_MULTI + System.getProperty("line.separator")); singleValueTableColumns = new ArrayList<String>(); singleValueTableColumns.add(ConfigKeys.COLUMN_XPK_ROW + ConfigKeys.DELIMITER_COLUMN_TYPE + ConfigKeys.DATA_TYPE_XSD_NUMERIC); multiValueTablesSQL = new HashMap<String, String>(); groupAttrs = new HashMap<Object, HashMap<String, Object>>(); xsdElementsList = new ArrayList<XSDElement>(); } /** * initialize the <code>DocumentBuilder</code> and read the XSD file * * @param docPath * @return the <code>Document</code> object representing the read XSD file */ private Document retrieveDoc(String docPath) { Document xsdDoc = null; File file = new File(docPath); try { DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); xsdDoc = builder.parse(file); } catch (Exception e) { appLogger.error(e.getMessage()); } return xsdDoc; } /** * perform the iteration/modification on the document * iterate to the level which contains all the elements (Single-Value, and Groups) and start processing each * * @param xsdDoc * @return */ private Document processDoc(Document xsdDoc) { ArrayList<Object> newElementsList = new ArrayList<Object>(); HashMap<String, Object> docAttrMap = new HashMap<String, Object>(); Element sequenceElement = null; Element schemaElement = null; // get document's root element NodeList nodes = xsdDoc.getChildNodes(); for (int i = 0; i < nodes.getLength(); i++) { if (ConfigKeys.TAG_SCHEMA.equals(nodes.item(i).getNodeName())) { schemaElement = (Element) nodes.item(i); break; } } // process the document (change single-value elements, collect list of new elements to be added) for (int i1 = 0; i1 < schemaElement.getChildNodes().getLength(); i1++) { Node childLevel1 = (Node) schemaElement.getChildNodes().item(i1); // <ComplexType> element if (childLevel1.getNodeName().equals(ConfigKeys.TAG_COMPLEX_TYPE)) { // first, get the main attributes and put it in the csv file for (int i6 = 0; i6 < childLevel1.getChildNodes().getLength(); i6++) { Node child6 = childLevel1.getChildNodes().item(i6); if (ConfigKeys.TAG_ATTRIBUTE.equals(child6.getNodeName())) { if (child6.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME) != null) { String attrName = child6.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME).getNodeValue(); if (((Element) child6).getElementsByTagName(ConfigKeys.TAG_SIMPLE_TYPE).getLength() != 0) { Node simpleTypeElement = ((Element) child6).getElementsByTagName(ConfigKeys.TAG_SIMPLE_TYPE) .item(0); if (((Element) simpleTypeElement).getElementsByTagName(ConfigKeys.TAG_RESTRICTION).getLength() != 0) { Node restrictionElement = ((Element) simpleTypeElement).getElementsByTagName( ConfigKeys.TAG_RESTRICTION).item(0); if (((Element) restrictionElement).getElementsByTagName(ConfigKeys.TAG_MAX_LENGTH).getLength() != 0) { Node maxLengthElement = ((Element) restrictionElement).getElementsByTagName( ConfigKeys.TAG_MAX_LENGTH).item(0); HashMap<String, String> elementProperties = new HashMap<String, String>(); elementProperties.put(ConfigKeys.FIELD_TAG, attrName); elementProperties.put(ConfigKeys.FIELD_NUMBER, "0"); elementProperties.put(ConfigKeys.FIELD_DATA_TYPE, ConfigKeys.DATA_TYPE_XSD_STRING); elementProperties.put(ConfigKeys.FIELD_FMT, ""); elementProperties.put(ConfigKeys.FIELD_NAME, attrName); elementProperties.put(ConfigKeys.FIELD_SHORT_NAME, attrName); elementProperties.put(ConfigKeys.FIELD_COLUMN_NAME, attrName); elementProperties.put(ConfigKeys.FIELD_SINGLE_OR_MULTI, "S"); elementProperties.put(ConfigKeys.FIELD_LEN, maxLengthElement.getAttributes().getNamedItem( ConfigKeys.ATTR_VALUE).getNodeValue()); elementProperties.put(ConfigKeys.FIELD_INPUT_LEN, maxLengthElement.getAttributes() .getNamedItem(ConfigKeys.ATTR_VALUE).getNodeValue()); constructElementRow(elementProperties); // add the attribute as a column in the single-value table singleValueTableColumns.add(attrName + ConfigKeys.DELIMITER_COLUMN_TYPE + ConfigKeys.DATA_TYPE_XSD_STRING + ConfigKeys.DELIMITER_COLUMN_TYPE + maxLengthElement.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE).getNodeValue()); // add the attribute as an element in the elements list addToElementsList(attrName, attrName); appLogger.debug("added attribute: " + attrName); } } } } } } // now, loop on the elements and process them for (int i2 = 0; i2 < childLevel1.getChildNodes().getLength(); i2++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(i2); // <Sequence> element if (childLevel2.getNodeName().equals(ConfigKeys.TAG_SEQUENCE)) { sequenceElement = (Element) childLevel2; for (int i3 = 0; i3 < childLevel2.getChildNodes().getLength(); i3++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(i3); // <Element> element if (childLevel3.getNodeName().equals(ConfigKeys.TAG_ELEMENT)) { // check if single element or group if (isGroup(childLevel3)) { processGroup(childLevel3, true, null, null, docAttrMap, xsdDoc, newElementsList); // insert a new comment node with the contents of the group tag sequenceElement.insertBefore(xsdDoc.createComment(serialize(childLevel3)), childLevel3); // remove the group tag sequenceElement.removeChild(childLevel3); } else { processElement(childLevel3); } } } } } } } // add new elements // this step should be after finishing processing the whole document. when you add new elements to the document // while you are working on it, those new elements will be included in the processing. We don't need that! for (int i = 0; i < newElementsList.size(); i++) { sequenceElement.appendChild((Element) newElementsList.get(i)); } // write the new required attributes to the schema element Iterator<String> attrIter = docAttrMap.keySet().iterator(); while(attrIter.hasNext()) { Element attr = (Element) docAttrMap.get(attrIter.next()); Element newAttrElement = xsdDoc.createElement(ConfigKeys.TAG_ATTRIBUTE); appLogger.debug("appending attr. [" + attr.getAttribute(ConfigKeys.ATTR_NAME) + "]..."); newAttrElement.setAttribute(ConfigKeys.ATTR_NAME, attr.getAttribute(ConfigKeys.ATTR_NAME)); newAttrElement.setAttribute(ConfigKeys.ATTR_TYPE, attr.getAttribute(ConfigKeys.ATTR_TYPE)); schemaElement.appendChild(newAttrElement); } return xsdDoc; } /** * add a new <code>XSDElement</code> with the given <code>name</code> and <code>businessName</code> to * the elements list * * @param name * @param businessName */ private void addToElementsList(String name, String businessName) { xsdElementsList.add(new XSDElement(name, businessName)); } /** * add the given <code>XSDElement</code> to the elements list * * @param element */ private void addToElementsList(XSDElement element) { xsdElementsList.add(element); } /** * check if the <code>element</code> sent is single-value element or group * element. the comparison depends on the children of the element. if found one of type * <code>ComplexType</code> then it's a group element, and if of type * <code>SimpleType</code> then it's a single-value element * * @param element * @return <code>true</code> if the element is a group element, * <code>false</code> otherwise */ private boolean isGroup(Node element) { for (int i = 0; i < element.getChildNodes().getLength(); i++) { Node child = (Node) element.getChildNodes().item(i); if (child.getNodeName().equals(ConfigKeys.TAG_COMPLEX_TYPE)) { // found a ComplexType child (Group element) return true; } else if (child.getNodeName().equals(ConfigKeys.TAG_SIMPLE_TYPE)) { // found a SimpleType child (Single-Value element) return false; } } return false; /* String attrName = null; if (element.getAttributes() != null) { Node attribute = element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME); if (attribute != null) { attrName = attribute.getNodeValue(); } } if (attrName.startsWith("g")) { // group element return true; } else { // single element return false; } */ } /** * process a group element. recursively, process groups till no more group elements are found * * @param element * @param isFirstLevelGroup * @param attrMap * @param docAttrMap * @param xsdDoc * @param newElementsList */ private void processGroup(Node element, boolean isFirstLevelGroup, Node parentGroup, XSDElement parentGroupElement, HashMap<String, Object> docAttrMap, Document xsdDoc, ArrayList<Object> newElementsList) { String elementName = null; HashMap<String, Object> groupAttrMap = new HashMap<String, Object>(); HashMap<String, Object> parentGroupAttrMap = new HashMap<String, Object>(); XSDElement groupElement = null; if (element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME) != null) { elementName = element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME).getNodeValue(); } appLogger.debug("processing group [" + elementName + "]..."); groupElement = new XSDElement(elementName, elementName); // get the attributes if a non-first-level-group // attributes are: groups's own attributes + parent group's attributes if (!isFirstLevelGroup) { // get the current element (group) attributes for (int i1 = 0; i1 < element.getChildNodes().getLength(); i1++) { if (ConfigKeys.TAG_COMPLEX_TYPE.equals(element.getChildNodes().item(i1).getNodeName())) { Node complexTypeNode = element.getChildNodes().item(i1); for (int i2 = 0; i2 < complexTypeNode.getChildNodes().getLength(); i2++) { if (ConfigKeys.TAG_ATTRIBUTE.equals(complexTypeNode.getChildNodes().item(i2).getNodeName())) { appLogger.debug("add group attr: " + ((Element) complexTypeNode.getChildNodes().item(i2)).getAttribute(ConfigKeys.ATTR_NAME)); groupAttrMap.put(((Element) complexTypeNode.getChildNodes().item(i2)).getAttribute(ConfigKeys.ATTR_NAME), complexTypeNode.getChildNodes().item(i2)); docAttrMap.put(((Element) complexTypeNode.getChildNodes().item(i2)).getAttribute(ConfigKeys.ATTR_NAME), complexTypeNode.getChildNodes().item(i2)); } } } } // now, get the parent's attributes parentGroupAttrMap = groupAttrs.get(parentGroup); if (parentGroupAttrMap != null) { Iterator<String> iter = parentGroupAttrMap.keySet().iterator(); while (iter.hasNext()) { String attrName = iter.next(); groupAttrMap.put(attrName, parentGroupAttrMap.get(attrName)); } } // add the attributes to the group element that will be added to the elements list Iterator<String> itr = groupAttrMap.keySet().iterator(); while(itr.hasNext()) { groupElement.addAttribute(itr.next()); } // put the attributes in the attributes map groupAttrs.put(element, groupAttrMap); } for (int i = 0; i < element.getChildNodes().getLength(); i++) { Node childLevel1 = (Node) element.getChildNodes().item(i); if (childLevel1.getNodeName().equals(ConfigKeys.TAG_COMPLEX_TYPE)) { for (int j = 0; j < childLevel1.getChildNodes().getLength(); j++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(j); if (childLevel2.getNodeName().equals(ConfigKeys.TAG_SEQUENCE)) { for (int k = 0; k < childLevel2.getChildNodes().getLength(); k++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(k); if (childLevel3.getNodeName().equals(ConfigKeys.TAG_ELEMENT)) { // check if single element or group if (isGroup(childLevel3)) { // another group element.. // unfortunately, a recursion is // needed here!!! :-( processGroup(childLevel3, false, element, groupElement, docAttrMap, xsdDoc, newElementsList); } else { // reached a single-value element.. copy it under the // main sequence and apply the name<>shorname replacement processGroupElement(childLevel3, element, groupElement, isFirstLevelGroup, xsdDoc, newElementsList); } } } } } } } if (isFirstLevelGroup) { addToElementsList(groupElement); } else { parentGroupElement.addChild(groupElement); } appLogger.debug("finished processing group [" + elementName + "]."); } /** * process the sent <code>element</code> to extract/modify required * information: * 1. replace the <code>name</code> attribute with the <code>shortname</code>. * * @param element */ private void processElement(Node element) { String fieldShortName = null; String fieldColumnName = null; String fieldDataType = null; String fieldFormat = null; String fieldInputLength = null; String elementName = null; HashMap<String, String> elementProperties = new HashMap<String, String>(); if (element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME) != null) { elementName = element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME).getNodeValue(); } appLogger.debug("processing element [" + elementName + "]..."); for (int i = 0; i < element.getChildNodes().getLength(); i++) { Node childLevel1 = (Node) element.getChildNodes().item(i); if (childLevel1.getNodeName().equals(ConfigKeys.TAG_ANNOTATION)) { for (int j = 0; j < childLevel1.getChildNodes().getLength(); j++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(j); if (childLevel2.getNodeName().equals(ConfigKeys.TAG_APP_INFO)) { for (int k = 0; k < childLevel2.getChildNodes().getLength(); k++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(k); if (childLevel3.getNodeName().equals(ConfigKeys.TAG_HAS_PROPERTY)) { if (childLevel3.getAttributes() != null) { String attrName = null; Node attribute = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME); if (attribute != null) { attrName = attribute.getNodeValue(); elementProperties.put(attrName, childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue()); if (attrName.equals(ConfigKeys.FIELD_SHORT_NAME)) { fieldShortName = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_COLUMN_NAME)) { fieldColumnName = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_DATA_TYPE)) { fieldDataType = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_FMT)) { fieldFormat = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_INPUT_LEN)) { fieldInputLength = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } } } } } } } } } // replace the name attribute with the shortname if (element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME) != null) { element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME).setNodeValue(fieldShortName); } elementProperties.put(ConfigKeys.FIELD_SINGLE_OR_MULTI, "S"); constructElementRow(elementProperties); singleValueTableColumns.add(fieldShortName + ConfigKeys.DELIMITER_COLUMN_TYPE + fieldDataType + fieldFormat + ConfigKeys.DELIMITER_COLUMN_TYPE + fieldInputLength); // add the element to elements list addToElementsList(fieldShortName, fieldColumnName); appLogger.debug("finished processing element [" + elementName + "]."); } /** * process the sent <code>element</code> to extract/modify required * information: * 1. copy the element under the main sequence * 2. replace the <code>name</code> attribute with the <code>shortname</code>. * 3. add the attributes of the parent groups (if non-first-level-group) * * @param element */ private void processGroupElement(Node element, Node parentGroup, XSDElement parentGroupElement, boolean isFirstLevelGroup, Document xsdDoc, ArrayList<Object> newElementsList) { String fieldShortName = null; String fieldColumnName = null; String fieldDataType = null; String fieldFormat = null; String fieldInputLength = null; String elementName = null; Element newElement = null; HashMap<String, String> elementProperties = new HashMap<String, String>(); ArrayList<String> tableColumns = new ArrayList<String>(); HashMap<String, Object> groupAttrMap = null; if (element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME) != null) { elementName = element.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME).getNodeValue(); } appLogger.debug("processing element [" + elementName + "]..."); // 1. copy the element newElement = (Element) element.cloneNode(true); newElement.setAttribute(ConfigKeys.ATTR_MAX_OCCURS, "unbounded"); // 2. if non-first-level-group, replace the element's SimpleType tag with a ComplexType tag if (!isFirstLevelGroup) { if (((Element) newElement).getElementsByTagName(ConfigKeys.TAG_SIMPLE_TYPE).getLength() != 0) { // there should be only one tag of SimpleType Node simpleTypeNode = ((Element) newElement).getElementsByTagName(ConfigKeys.TAG_SIMPLE_TYPE).item(0); // create the new ComplexType element Element complexTypeNode = xsdDoc.createElement(ConfigKeys.TAG_COMPLEX_TYPE); complexTypeNode.setAttribute(ConfigKeys.ATTR_MIXED, "true"); // get the list of attributes for the parent group groupAttrMap = groupAttrs.get(parentGroup); Iterator<String> attrIter = groupAttrMap.keySet().iterator(); while(attrIter.hasNext()) { Element attr = (Element) groupAttrMap.get(attrIter.next()); Element newAttrElement = xsdDoc.createElement(ConfigKeys.TAG_ATTRIBUTE); appLogger.debug("adding attr. [" + attr.getAttribute(ConfigKeys.ATTR_NAME) + "]..."); newAttrElement.setAttribute(ConfigKeys.ATTR_REF, attr.getAttribute(ConfigKeys.ATTR_NAME)); newAttrElement.setAttribute(ConfigKeys.ATTR_USE, "optional"); complexTypeNode.appendChild(newAttrElement); } // replace the old SimpleType node with the new ComplexType node newElement.replaceChild(complexTypeNode, simpleTypeNode); } } // 3. replace the name with the shortname in the new element for (int i = 0; i < newElement.getChildNodes().getLength(); i++) { Node childLevel1 = (Node) newElement.getChildNodes().item(i); if (childLevel1.getNodeName().equals(ConfigKeys.TAG_ANNOTATION)) { for (int j = 0; j < childLevel1.getChildNodes().getLength(); j++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(j); if (childLevel2.getNodeName().equals(ConfigKeys.TAG_APP_INFO)) { for (int k = 0; k < childLevel2.getChildNodes().getLength(); k++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(k); if (childLevel3.getNodeName().equals(ConfigKeys.TAG_HAS_PROPERTY)) { if (childLevel3.getAttributes() != null) { String attrName = null; Node attribute = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME); if (attribute != null) { attrName = attribute.getNodeValue(); elementProperties.put(attrName, childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue()); if (attrName.equals(ConfigKeys.FIELD_SHORT_NAME)) { fieldShortName = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_COLUMN_NAME)) { fieldColumnName = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_DATA_TYPE)) { fieldDataType = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_FMT)) { fieldFormat = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(ConfigKeys.FIELD_INPUT_LEN)) { fieldInputLength = childLevel3.getAttributes().getNamedItem(ConfigKeys.ATTR_VALUE) .getNodeValue(); } } } } } } } } } if (newElement.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME) != null) { newElement.getAttributes().getNamedItem(ConfigKeys.ATTR_NAME).setNodeValue(fieldShortName); } // 4. save the new element to be added to the sequence list newElementsList.add(newElement); elementProperties.put(ConfigKeys.FIELD_SINGLE_OR_MULTI, "M"); constructElementRow(elementProperties); // create the MULTI-VALUE table // 0. Primary Key tableColumns.add(ConfigKeys.COLUMN_XPK_ROW + ConfigKeys.DELIMITER_COLUMN_TYPE + ConfigKeys.DATA_TYPE_XSD_STRING + ConfigKeys.DELIMITER_COLUMN_TYPE + ConfigKeys.COLUMN_XPK_ROW_LENGTH); // 1. foreign key tableColumns.add(ConfigKeys.COLUMN_FK_ROW + ConfigKeys.DELIMITER_COLUMN_TYPE + ConfigKeys.DATA_TYPE_XSD_NUMERIC); // 2. field value tableColumns.add(fieldShortName + ConfigKeys.DELIMITER_COLUMN_TYPE + fieldDataType + fieldFormat + ConfigKeys.DELIMITER_COLUMN_TYPE + fieldInputLength); // 3. attributes if (groupAttrMap != null) { Iterator<String> attrIter = groupAttrMap.keySet().iterator(); while (attrIter.hasNext()) { Element attr = (Element) groupAttrMap.get(attrIter.next()); tableColumns.add(attr.getAttribute(ConfigKeys.ATTR_NAME) + ConfigKeys.DELIMITER_COLUMN_TYPE + ConfigKeys.DATA_TYPE_XSD_NUMERIC); } } multiValueTablesSQL.put(sub_table_prefix.getText() + fieldShortName, constructMultiValueTableSQL( sub_table_prefix.getText() + fieldShortName, tableColumns)); // add the element to it's parent group children parentGroupElement.addChild(new XSDElement(fieldShortName, fieldColumnName)); appLogger.debug("finished processing element [" + elementName + "]."); } /** * write resulted files * * @param xsdDoc * @param docPath */ private void writeResults(Document xsdDoc, String resultsDir, String newXSDFileName, String csvFileName) { String rsDir = resultsDir + File.separator + new SimpleDateFormat("yyyyMMdd-HHmm").format(new Date()); try { File resultsDirFile = new File(rsDir); if (!resultsDirFile.exists()) { resultsDirFile.mkdirs(); } // write the XSD doc appLogger.info("writing the transformed XSD..."); Source source = new DOMSource(xsdDoc); Result result = new StreamResult(rsDir + File.separator + newXSDFileName); Transformer xformer = TransformerFactory.newInstance().newTransformer(); // xformer.setOutputProperty("indent", "yes"); xformer.transform(source, result); appLogger.info("finished writing the transformed XSD."); // write the CSV columns file appLogger.info("writing the CSV file..."); FileWriter csvWriter = new FileWriter(rsDir + File.separator + csvFileName); csvWriter.write(columnsCSV.toString()); csvWriter.close(); appLogger.info("finished writing the CSV file."); // write the master single-value table appLogger.info("writing the creation script for master table (single-values)..."); FileWriter masterTableWriter = new FileWriter(rsDir + File.separator + main_edh_table_name.getText() + ".sql"); masterTableWriter.write(constructSingleValueTableSQL(main_edh_table_name.getText(), singleValueTableColumns)); masterTableWriter.close(); appLogger.info("finished writing the creation script for master table (single-values)."); // write the multi-value tables sql appLogger.info("writing the creation script for slave tables (multi-values)..."); Iterator<String> iter = multiValueTablesSQL.keySet().iterator(); while (iter.hasNext()) { String tableName = iter.next(); String sql = multiValueTablesSQL.get(tableName); FileWriter tableSQLWriter = new FileWriter(rsDir + File.separator + tableName + ".sql"); tableSQLWriter.write(sql); tableSQLWriter.close(); } appLogger.info("finished writing the creation script for slave tables (multi-values)."); // write the single-value view appLogger.info("writing the creation script for single-value selection view..."); FileWriter singleValueViewWriter = new FileWriter(rsDir + File.separator + view_name_single.getText() + ".sql"); singleValueViewWriter.write(constructViewSQL(ConfigKeys.SQL_VIEW_SINGLE)); singleValueViewWriter.close(); appLogger.info("finished writing the creation script for single-value selection view."); // debug for (int i = 0; i < xsdElementsList.size(); i++) { getMultiView(xsdElementsList.get(i)); /*// if (xsdElementsList.get(i).getAllDescendants() != null) { // for (int j = 0; j < xsdElementsList.get(i).getAllDescendants().size(); j++) { // appLogger.debug(main_edh_table_name.getText() + "." + ConfigKeys.COLUMN_XPK_ROW // + "=" + xsdElementsList.get(i).getAllDescendants().get(j).getName() + "." + ConfigKeys.COLUMN_FK_ROW); // } // } */ } } catch (Exception e) { appLogger.error(e.getMessage()); } } private String getMultiView(XSDElement element)

    Read the article

  • PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/json.so' undefined symbol: ZVAL_DELREF

    - by crmpicco
    I have an issue where I am unable to use JSON, which would appear to be because of the following error. There is another thread on this forum this touches on a similar issue, but it's not quite the same. I am using CentOS 5.6 and have the following pear packages installed: [crmpicco@eq-www-php53 ~]$ pear list PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/json.so' - /usr/lib64/php/modules/json.so: undefined symbol: ZVAL_DELREF in Unknown on line 0 Installed packages, channel pear.php.net: ========================================= Package Version State Archive_Tar 1.3.7 stable Auth_SASL 1.0.2 stable Console_Getopt 1.3.1 stable Image_Barcode 1.1.2 stable Mail 1.1.14 stable Net_SMTP 1.2.10 stable Net_Socket 1.0.8 stable PEAR 1.9.4 stable Structures_Graph 1.0.4 stable XML_RPC 1.5.4 stable XML_Util 1.2.1 stable json 1.2.1 stable and have the following PHP packages installed: [crmpicco@eq-www-php53 ~]$ yum list installed | grep php php.x86_64 5.3.10-1.w5 installed php-cli.x86_64 5.3.10-1.w5 installed php-common.x86_64 5.3.10-1.w5 installed php-devel.x86_64 5.3.10-1.w5 installed php-gd.x86_64 5.3.10-1.w5 installed php-ldap.x86_64 5.3.10-1.w5 installed php-mcrypt.x86_64 5.3.10-1.w5 installed php-mysql.x86_64 5.3.10-1.w5 installed php-pdo.x86_64 5.3.10-1.w5 installed php-pear.noarch 1:1.9.4-1.w5 installed php-pear-Net-Socket.noarch 1.0.8-1.el5.centos installed php-soap.x86_64 5.3.10-1.w5 installed php-xml.x86_64 5.3.10-1.w5 installed The error: [crmpicco@eq-www-php53 ~]$ php -v PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/json.so' - /usr/lib64/php/modules/json.so: undefined symbol: ZVAL_DELREF in Unknown on line 0 PHP 5.3.10 (cli) (built: Feb 2 2012 23:23:12) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies My repolist reads as: [crmpicco@eq-www-php53 ~]$ yum repolist Loaded plugins: changelog, fastestmirror Excluding Packages in global exclude list Finished repo id repo name status base CentOS-5 - Base 3,548+43 epel Extra Packages for Enterprise Linux 5 - x86_64 6,815+156 extras CentOS-5 - Extras 245+23 rpmforge Red Hat Enterprise 5 - RPMforge.net - dag 11,016+67 updates CentOS-5 - Updates 233 webtatic Webtatic Repository 5 - x86_64 211+183 repolist: 22,068 I am getting HTTP 500 errors everywhere that I use JSON so my application is non functional right now.

    Read the article

  • Formatting a truecrypt volume on windows: Truecrypt failed to obtain administrator privileges

    - by daveh551
    Following shaneselman's advice (http://www.hanselman.com/blog/TheComputerBackupRuleOfThree.aspx), I'm setting up a 2TB external drive as a backup, and encrypting it using TrueCrypt. This is under Windows 7. (I've used TrueCrypt before, but not since XP days.) I installed TrueCrypt with default options. After taking 23 hours to format the 2TB container, it finishes with an error saying "TrueCrypt cannot obtain administrator privileges." When I click OK on that, it says it can't format the container as NTFS, do I want to format it as FAT, and I don't so I click No, and it exits with nothing to show for 23 hours of compute time. So I set the "Run as administrator flag" on the TrueCrypt shortcut, and try again. This time, when I go to format the contain (prepared to wait ANOTHER 23 hours), it pops up a dialog saying you're formatting this as administrator. "The volume may be created with permissions that will not allow you to write to the volume when it is mounted. If you want to avoid that, close this instance of Volume Creation Wizard and launch a new one without administrator privileges." Great - I can either run as non-administrator, and it will fail to create the volume at all, or I can run as administrator and create a volume I can't write to. I think I'm doing something wrong, but it's not clear to me what. Any help?

    Read the article

  • RouterOS on Hyper-V (v3/2012) - any way to get it working?

    - by TomTom
    Trying to set up a small VPN point to connect into a remote Hyper-V cluster using ROuterOS. Anyone got it working ON Hyper-V with the latest builds of RouterOS? It seems the legacy network adapter is not supported anymore either (or just broken). The platform is a Windows Server 2012 RC. This is not a high performance setup - the RouterOS wont do the routing for more than the backend administrative access, and the only real traffic we will see there is when ISO images for new operating systems are uploaded. Otherwise we will have possibly RDP traffic as well as web / http traffioc, but this is internal only (dashboards, some control panel). The server has no public business. So the price for non virtualized network cards is ok for me. After hooking up - ping just does not work. After some time I see in windows (arp -a on the command line), so I know that the Hyper-V side is set up properly. Just no packets arrived. I have turned off all protection on Hyper-V (or : not turned them on), so no MAC spoofing protection etc. in the Advanced page for the legacy adapters. Unless I can get it work I will have to resort to using a windows install as router / VPN endpoint, which introduces another OS into the fabric (we run all routers etc. so far on mikrotik in hardware, which is why I want this one to be RouterOS, too). And no, putting hardware there is NOT an option - the cost would be significant.

    Read the article

  • Telling subversion client to ignore certificate errors

    - by Pekka
    I have set up a copy of Redmine through the Bitnami Redmine Stack and am having trouble accessing a remote SVN repository through https. The trouble seems to be related to the fact that I don't have a signed certificate, and the certificate provided doesn't match the host name (I am accessing the same server through a number of host names). I am new to Ruby, Mongrel, Rails and Redmine. Following the advice in this forum thread, I changed the path Redmine uses to invoke the svn client in \apps\redmine\lib\ redmine\scm\adapters\subversion_adapter.rb from SVN_BIN = "svn" to SVN_BIN = "svn --trust-server-cert --non-interactive --config-dir c:/user/temp" I was hoping that the --trust-server-cert option would fix the certificate problem. However, I am still getting the following error message in mongrel.log: svn: OPTIONS of 'https://server.xyz:8443/svn/reponame': Server certificate verification failed: certificate issued for a different hostname, issuer is not trusted (https://server.xyz:8443) Does anybody know what to do about this? Additional info: I re-started the mongrel service after each change I am sure the configuration change has taken effect because subversion has created a full configuration directory in c:\user\temp I can access the remote repository using command line svn no problem The remote repository runs on a Windows box with VisualSVN

    Read the article

  • What is a Valid Trust Anchor in Windows 7 relating to Wifi?

    - by Aaron
    The error below just started happening at work with a personal laptop running Windows 7 Ultimate. I'm unable to use installed, non-expired certificates to connect to a private wireless network. No recent changes were made by IT that would explain the issue. It worked fine several weeks ago and happens on two laptops I own. The details and some screen shots are here: http://www.wiredprairie.us/blog/index.php/archives/906 The error we don't understand is this: The credentials provided by the server could not be validated. We recommend that you terminate the connection and contact your administrator with the information provided in the details. You may still connect but doing so exposes you to the security risk by a possible rogue server. The server XYZ presented a valid certificate issued by Company Name Certificate Authority but Company Name Certificate Authority is not configured as a valid trust anchor for this profile. We don't know to to resolve the issue without ignoring the error (nor what's changed that could explain this new error). Update: The new information is that we have our own Root CA, and that the certificates were not updated recently, nor have any expired.

    Read the article

  • Plesk Postfix SMTP 550 5.7.1 "Command rejected" for one external sender

    - by Mnebuerquo
    My server is rejecting emails from one external sender. I suspect this might be misconfiguration on the sending server, but I'm not sure from these error messages. The non-delivery report message the sender gets contains this text: #5.7.1 smtp;550 5.7.1 Command rejected> #SMTP# I also see this message in /var/messages at about the same time as the rejection message was sent, though I'm not sure if it's actually related: Nov 29 12:29:28 localhost postfix/smtpd[31829]: sql_sqlite3 plugin: no result found I'm using Plesk 10.4.4 Update #47, Centos 6.2, Postfix 2.8.4-11100615 on my mail server. This is only happening for one sender so far, but I found a Google result on experts-exchange.com which seemed to identify the same problem and with the same sending domain. This was posted back in June, and currently has no answers, so even if I was a paying customer it wouldn't be answered. (http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Q_27760746.html) The generating server is bigfish.com. What I need to determine is if this is a problem on my server or a problem with bigfish.com. Is there more information I can find in config files, logs, etc. to figure this out?

    Read the article

  • HOWTO: Disable complex password policy on Hyper-V Server 2008?

    - by Ian Boyd
    How do you disable the password complexity requirements on a Microsoft Hyper-V Server 2008 R2? Keep in mind that when you log into the server, the only UI you have is: And you cannot run gpedit.msc: C:\Users\Administrator>gpedit.msc 'gpedit.msc' is not recognized as an internal or external command, operable program or batch file. because there are no .msc snap-ins installed with Microsoft Hyper-V Server 2008 R2. The problem comes when you're trying to add an account to the server, so you can manage it, but it doesn't like most passwords: And, predictably, typing NET HELPMSG 2245 gives you The password does not meet the password policy requirements. Check the minimum p assword length, password complexity and password history requirements. i hoped it would have been a friendly user experience, and either: offered to disable the password policy tell me how to disable the password policy tell me how to check the minimum password length, password complexity and password history requirements. Password Complexity Requirements The Microsoft's default password complexity for Server Core is: Passwords cannot contain the user’s account name or parts of the user’s full name that exceed two consecutive characters. Passwords must be at least six characters in length. Passwords must contain characters from three of the following four categories: 1.English uppercase characters (A through Z). 2.English lowercase characters (a through z). 3.Base 10 digits (0 through 9). 4.Non-alphabetic characters (for example, !, $, #, %). External links Technet Forums: Hyper-V Server disable complex passwords Technet: Passwords must meet complexity requirements of the installed password filter Update: 2k views? So many people keep coming coming to it: up-vote it!

    Read the article

  • syspolicy_purge_history generates failed logins

    - by jbrown414
    I have a development server with 3 instances: Default, A and B. It is a physical server, non clustered. Whenever the syspolicy_purge_history job runs at 2 am, I get failed login alerts. Looking at the job steps, all are successfully completed. It appears that some point during the step "Erase Phantom System Health Records" is when the failed logins occur. syspolicy_purge_history on instance B works OK. syspolicy_purge_history on the Default instance seems to want to connect to instance B, resulting in: Error: 18456, Severity: 14, State: 11. Login failed for user 'Machinename\sqlsvc-B'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: <local machine>] . No errors are reported by Powershell. syspolicy_purge_history on the A instance seems to want to connect to the Default instance resulting in Error: 18456, Severity: 14, State: 11. Login failed for user 'Machinename\sqlsvc-Default'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: <local machine>] . Then it tries to connect to the B instance, resulting in Error: 18456, Severity: 14, State: 11. Login failed for user 'Machinename\sqlsvc-B'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: <local machine>] . No errors are reported by Powershell. I tried the steps posted here hoping they would fix it. http://support.microsoft.com/kb/955726 But again, this is not a virtual server nor is it in a cluster. Do you have any suggestions? Thanks.

    Read the article

  • How do I leverage Bitlocker cmdlets?

    - by user1418882
    This article hints at being able to unlock a bitlocked drive using: Unlock-BitLocker -MountPoint -Password However, I know diddly squat about Powershell and how to use the Powershell cmdlets to do what I want to do. So, how do I do use the above to do something like the following? Unlock-BitLocker -MountPoint D:\ -Password "password" Currently about as much as I know how to do is start Powershell and that's it. I don't want to learn masses of Powershell to get to the point where I can do this. All that I need to know in enough to know how I can execute the commands that are pointed out in the first link. So far in the powershell prompt if I past in: Unlock-BitLocker -MountPoint D:\ -Password "password" I get the following error: The term 'Unlock-BitLocker' is not recognized as the name of a cmdlet, function, script file, or operable program. Chec k the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:17 + Unlock-BitLocker <<<< -MountPoint D:\ -Password "password" + CategoryInfo : ObjectNotFound: (Unlock-BitLocker:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException This is most likely because I don't have any clue about how the commands on the initially linked page work in a powershell context. This is so that I can answer my own question here: Bitlocker and scheduled task (powershell) script to unlock non-system drive

    Read the article

  • Can't successfully run Sharepoint Foundation 2010 first time configuration

    - by Robert Koritnik
    I'm trying to run the non-GUI version of configuration wizard using power shell because I would like to set config and admin database names. GUI wizard doesn't give you all possible options for configuration. I run this command: New-SPConfigurationDatabase -DatabaseName "Sharepoint2010Config" -DatabaseServer "developer.pleiado.pri" -AdministrationContentDatabaseName "Sharepoint2010Admin" -DatabaseCredentials (Get-Credential) -Passphrase (ConvertTo-SecureString "%h4r3p0int" -AsPlainText -Force) Of course all these are in the same line. I've broken them down into separate lines to make it easier to read. When I run this command I get this error: New-SPConfigurationDatabase : Cannot connect to database master at SQL server a t developer.pleiado.pri. The database might not exist, or the current user does not have permission to connect to it. At line:1 char:28 + New-SPConfigurationDatabase <<<< -DatabaseName "Sharepoint2010Config" -Datab aseServer "developer.pleiado.pri" -AdministrationContentDatabaseName "Sharepoint 2010Admin" -DatabaseCredentials (Get-Credential) -Passphrase (ConvertTo-SecureS tring "%h4r3p0int" -AsPlainText -Force) + CategoryInfo : InvalidData: (Microsoft.Share...urationDatabase: SPCmdletNewSPConfigurationDatabase) [New-SPConfigurationDatabase], SPExcep tion + FullyQualifiedErrorId : Microsoft.SharePoint.PowerShell.SPCmdletNewSPCon figurationDatabase I created two domain accounts: SPF_DATABASE - database account SPF_ADMIN - farm account I'm running powershell console as domain administrator. I've tried to run SQL Management studio as domain admin and created a dummy database and it worked wothout a problem. I'm running: Windows 7 x64 on the machine where Sharepoint Foundation 2010 should be installed and also has preinstalled SQL Server 2008 R2 Windows Server 2008 R2 Server Core is my domain controller I've installed Sharepoint according to MS guides http://msdn.microsoft.com/en-us/library/ee554869%28office.14%29.aspx installing all additional patches that are related to my configuration. Any ideas what should I do to make it work?

    Read the article

< Previous Page | 341 342 343 344 345 346 347 348 349 350 351 352  | Next Page >