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• Migrating R Scripts from Development to Production

  - by Mark Hornick

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 “How do I move my R scripts stored in one database instance to another? I have my development/test system and want to migrate to production.” Users of Oracle R Enterprise Embedded R Execution will often store their R scripts in the R Script Repository in Oracle Database, especially when using the ORE SQL API. From previous blog posts, you may recall that Embedded R Execution enables running R scripts managed by Oracle Database using both R and SQL interfaces. In ORE 1.3.1., the SQL API requires scripts to be stored in the database and referenced by name in SQL queries. The SQL API enables seamless integration with database-based applications and ease of production deployment. Loading R scripts in the repository Before talking about migration, we’ll first introduce how users store R scripts in Oracle Database. Users can add R scripts to the repository in R using the function ore.scriptCreate, or SQL using the function sys.rqScriptCreate. For the sample R script     id <- 1:10     plot(1:100,rnorm(100),pch=21,bg="red",cex =2)     data.frame(id=id, val=id / 100) users wrap this in a function and store it in the R Script Repository with a name. In R, this looks like ore.scriptCreate("RandomRedDots", function () { line-height: 115%; font-family: "Courier New";">     id <- 1:10     plot(1:100,rnorm(100),pch=21,bg="red",cex =2)     data.frame(id=id, val=id / 100)) }) In SQL, this looks like begin sys.rqScriptCreate('RandomRedDots',  'function(){     id <- 1:10     plot(1:100,rnorm(100),pch=21,bg="red",cex =2)     data.frame(id=id, val=id / 100)   }'); end; / The R function ore.scriptDrop and SQL function sys.rqScriptDrop can be used to drop these scripts as well. Note that the system will give an error if the script name already exists. Accessing R scripts once they’ve been loaded If you’re not using a source code control system, it is possible that your R scripts can be misplaced or files modified, making what is stored in Oracle Database to only or best copy of your R code. If you’ve loaded your R scripts to the database, it is straightforward to access these scripts from the database table SYS.RQ_SCRIPTS. For example, select * from sys.rq_scripts where name='myScriptName'; From R, scripts in the repository can be loaded into the R client engine using a function similar to the following: ore.scriptLoad <- function(name) { query <- paste("select script from sys.rq_scripts where name='",name,"'",sep="") str.f <- OREbase:::.ore.dbGetQuery(query) assign(name,eval(parse(text = str.f)),pos=1) } ore.scriptLoad("myFunctionName") This function is also useful if you want to load an existing R script from the repository into another R script in the repository – think modular coding style. Just include this function in the body of the other function and load the named script. Migrating R scripts from one database instance to another To move a set of functions from one system to another, the following script loads the functions from one R script repository into the client R engine, then connects to the target database and creates the scripts there with the same names. scriptNames <- OREbase:::.ore.dbGetQuery("select name from sys.rq_scripts where name not like 'RQG$%' and name not like 'RQ$%'")$NAME for(s in scriptNames) { cat(s,"\n") ore.scriptLoad(s) } ore.disconnect() ore.connect("rquser","orcl","localhost","rquser") for(s in scriptNames) { cat(s,"\n") ore.scriptDrop(s) ore.scriptCreate(s,get(s)) } Best Practice When naming R scripts, keep in mind that the name can be up to 128 characters. As such, consider organizing scripts in a directory structure manner. For example, if an organization has multiple groups or applications sharing the same database and there are multiple components, use “/” to facilitate the function organization: line-height: 115%;">ore.scriptCreate("/org1/app1/component1/myFuntion1", myFunction1) ore.scriptCreate("/org1/app1/component1/myFuntion2", myFunction2) ore.scriptCreate("/org1/app2/component2/myFuntion2", myFunction2) ore.scriptCreate("/org2/app2/component1/myFuntion3", myFunction3) ore.scriptCreate("/org3/app2/component1/myFuntion4", myFunction4) Users can then query for all functions using the path prefix when looking up functions. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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• MySQL Connector/Net 6.6.2 has been released

  - by fernando

  MySQL Connector/Net 6.6.2, a new version of the all-managed .NET driver for MySQL has been released.  This is the first of two beta releases intended to introduce users to the new features in the release.  This release is feature complete it should be stable enough for users to understand the new features and how we expect them to work.  As is the case with all non-GA releases, it should not be used in any production environment.  It is appropriate for use with MySQL server versions 5.0-5.6 It is now available in source and binary form from http://dev.mysql.com/downloads/connector/net/#downloads and mirror sites (note that not all mirror sites may be up to date at this point-if you can't find this version on some mirror, please try again later or choose another download site.) The 6.6 version of MySQL Connector/Net brings the following new features:   * Stored routine debugging   * Entity Framework 4.3 Code First support   * Pluggable authentication (now third parties can plug new authentications mechanisms into the driver).   * Full Visual Studio 2012 support: everything from Server Explorer to Intellisense & the Stored Routine debugger. Stored Procedure Debugging ------------------------------------------- We are very excited to introduce stored procedure debugging into our Visual Studio integration.  It works in a very intuitive manner by simply clicking 'Debug Routine' from Server Explorer. You can debug stored routines, functions & triggers. Some of the new features in this release include:   * Besides normal breakpoints, you can define conditional & pass count breakpoints.   * Now the debugger editor shows colorizing.   * Now you can change the values of locals in a function scope (previously caused deadlock due to functions executing within their own transaction).   * Now you can also debug triggers for 'replace' sql statements.   * In general anything related to locals, watches, breakpoints, stepping & call stack should work in a similar way to the C#'s Visual Studio debugger. Some limitations remains, due to the current debugger architecture:   * Some MySQL functions cannot be debugged currently (get_lock, release_lock, begin, commit, rollback, set transaction level)..   * Only one debug session may be active on a given server. The Debugger is feature complete at this point. We look forward to your feedback. Documentation ------------------------------------- The documentation is still being developed and will be readily available soon (before Beta 2).  You can view current Connector/Net documentation at http://dev.mysql.com/doc/refman/5.5/en/connector-net.html You can find our team blog at http://blogs.oracle.com/MySQLOnWindows. You can also post questions on our forums at http://forums.mysql.com/. Enjoy and thanks for the support! 

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• Cloud – the forecast is improving

  - by Rob Farley

  There is a lot of discussion about “the cloud”, and how that affects people’s data stories. Today the discussion enters the realm of T-SQL Tuesday, hosted this month by Jorge Segarra. Over the years, companies have invested a lot in making sure that their data is good, and I mean every aspect of it – the quality of it, the security of it, the performance of it, and more. Experts such as those of us at LobsterPot Solutions have helped these companies with this, and continue to work with clients to make sure that data is a strong part of their business, not an oversight. Whether business intelligence systems are being utilised or not, every business needs to be able to rely on its data, and have the confidence in it. Data should be a foundation upon which a business is built. In the past, data had been stored in paper-based systems. Filing cabinets stored vital information. Today, people have server rooms with storage of various kinds, recognising that filing cabinets don’t necessarily scale particularly well. It’s easy to ‘lose’ data in a filing cabinet, when you have people who need to make sure that the sheets of paper are in the right spot, and that you know how things are stored. Databases help solve that problem, but still the idea of a large filing cabinet continues, it just doesn’t involve paper. If something happens to the physical ‘filing cabinet’, then the problems are larger still. Then the data itself is under threat. Many clients have generators in case the power goes out, redundant cables in case the connectivity dies, and spare servers in other buildings just in case they’re required. But still they’re maintaining filing cabinets. You see, people like filing cabinets. There’s something to be said for having your data ‘close’. Even if the data is not in readable form, living as bits on a disk somewhere, the idea that its home is ‘in the building’ is comforting to many people. They simply don’t want to move their data anywhere else. The cloud offers an alternative to this, and the human element is an obstacle. By leveraging the cloud, companies can have someone else look after their filing cabinet. A lot of people really don’t like the idea of this, partly because the administrators of the data, those people who could potentially log in with escalated rights and see more than they should be allowed to, who need to be trusted to respond if there’s a problem, are now a faceless entity in the cloud. But this doesn’t mean that the cloud is bad – this is simply a concern that some people may have. In new functionality that’s on its way, we see other hybrid mechanisms that mean that people can leverage parts of the cloud with less fear. Companies can use cloud storage to hold their backup data, for example, backups that have been encrypted and are therefore not able to be read by anyone (including administrators) who don’t have the right password. Companies can have a database instance that runs locally, but which has its data files in the cloud, complete with Transparent Data Encryption if needed. There can be a higher level of control, making the change easier to accept. Hybrid options allow people who have had fears (potentially very justifiable) to take a new look at the cloud, and to start embracing some of the benefits of the cloud (such as letting someone else take care of storage, high availability, and more) without losing the feeling of the data being close. @rob_farley

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• Windows Phone 8 Launch Event Summary

  - by Tim Murphy

  Today was the official coming out party for Windows Phone 8.  Below is a summary of the launch event.  There is a lot here to stay with me. They started with a commercial staring Joe Belfiore show how his Windows Phone 8 was personal too him which highlights something I think Microsoft has done well over the last couple of event: spotlight how Windows Phone is a different experience from other smartphones.  Joe actually called iPhone and Android “tired old metaphors" and explained that the idea around Windows Phone was to “reinvent the smartphone around you” as “the most personal smartphone operating system”.  The is the message that they need to drive home in their adds. The only real technical aspect we found out was that they have optimized the operating system around the dual core Qualcomm Snapdragon chip set.  It seems like all of the other hardware goodies had already been announced.  The remainder of the event was centered around new features of the OS and app announcements. So what are we getting?  The integrated features included lock screen live tile, Data Sense, Rooms and Kids corner.  There wasn’t a lot of information about it, but Joe also talked about apps not just having live tiles, but being live apps that could integrate with wallet and the hub. The lock screen will now be able to be personalized with live tile data or even a photo slide show.  This gives the lock screen an even better ability to give you the information you want to know before you even unlock the phone. The Kids Corner allows you as a parent to setup an area on your phone that you kids can go into an use it without disturbing your apps.  They can play games or use apps that you have designated and will only see those apps.  It even has a special lock screen gesture just for the kids corner. Rooms allow you to organize your phone around the groups of people in your life.  You get a shared calendar, a room wall as well as shared notes beyond just being able to send messages to a group.  You can also invite people not on the Windows Phone platform to access an online version of the room. Data Sense is a new feature that gives you better control and understanding of your data plan usage.  You can see which applications are using data and it can automatically adjust they way your phone behaves as you get close to your data limit. Add to these features the fact that the entire Windows ecosystem is integrated with SkyDrive and you have an available anywhere experience that is unequaled by any other platform.  Your document, photos and music are available on your Windows Phone, Window 8 device and Xbox.  SkyDrive also doesn’t limit how long you can keep files like the competing cloud platforms and give more free storage. It was interesting the way they made the launch event more personal.  First Joe brought out his own kids to demo the Kids Corner.  They followed this up by bringing out Jessica Alba to discuss her experience on the Windows Phone 8.  They need to keep putting a face on the product instead of just showing features as a cold list. Then we get to apps.  We knew that the new Skype was coming, but we found out that it was created in such a way that it can receive calls without running consistently in the background which would eat up battery.  This announcement was follow by the coming Facebook app that is optimized for Windows Phone 8.  As a matter of fact they indicated that just after launch the marketplace would have 46 out of the top 50 apps used by all smartphone platforms.  In a rational world this tide with over 120,000 apps currently in the marketplace there should be no more argument about the Windows Phone ecosystem. For those of us who develop for Windows Phone and weren’t on the early adoption program will finally get access to the SDK tomorrow after an announcement at Build (more waiting).  Perhaps we will get a few new features then. In the end I wouldn’t say there were any huge surprises, but I am really excited about getting my hands on the devices next month and starting to develop.  Stay tuned. del.icio.us Tags: Windows Phone,Windows Phone 8,Winodws Phone 8 Launch,Joe Belfiore,Jessica Alba

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• Deduping your redundancies

  - by nospam(at)example.com (Joerg Moellenkamp)

  Robin Harris of Storagemojo pointed to an interesting article about about deduplication and it's impact to the resiliency of your data against data corruption on ACM Queue. The problem in short: A considerable number of filesystems store important metadata at multiple locations. For example the ZFS rootblock is copied to three locations. Other filesystems have similar provisions to protect their metadata. However you can easily proof, that the rootblock pointer in the uberblock of ZFS for example is pointing to blocks with absolutely equal content in all three locatition (with zdb -uu and zdb -r). It has to be that way, because they are protected by the same checksum. A number of devices offer block level dedup, either as an option or as part of their inner workings. However when you store three identical blocks on them and the devices does block level dedup internally, the device may just deduplicated your redundant metadata to a block stored just once that is stored on the non-voilatile storage. When this block is corrupted, you have essentially three corrupted copies. Three hit with one bullet. This is indeed an interesting problem: A device doing deduplication doesn't know if a block is important or just a datablock. This is the reason why I like deduplication like it's done in ZFS. It's an integrated part and so important parts don't get deduplicated away. A disk accessed by a block level interface doesn't know anything about the importance of a block. A metadata block is nothing different to it's inner mechanism than a normal data block because there is no way to tell that this is important and that those redundancies aren't allowed to fall prey to some clever deduplication mechanism. Robin talks about this in regard of the Sandforce disk controllers who use a kind of dedup to reduce some of the nasty effects of writing data to flash, but the problem is much broader. However this is relevant whenever you are using a device with block level deduplication. It's just the point that you have to activate it for most implementation by command, whereas certain devices do this by default or by design and you don't know about it. However I'm not perfectly sure about that ? given that storage administration and server administration are often different groups with different business objectives I would ask your storage guys if they have activated dedup without telling somebody elase on their boxes in order to speak less often with the storage sales rep. The problem is even more interesting with ZFS. You may use ditto blocks to protect important data to store multiple copies of data in the pool to increase redundancy, even when your pool just consists out of one disk or just a striped set of disk. However when your device is doing dedup internally it may remove your redundancy before it hits the nonvolatile storage. You've won nothing. Just spend your disk quota on the the LUNs in the SAN and you make your disk admin happy because of the good dedup ratio However you can just fall in this specific "deduped ditto block"trap when your pool just consists out of a single device, because ZFS writes ditto blocks on different disks, when there is more than just one disk. Yet another reason why you should spend some extra-thought when putting your zpool on a single LUN, especially when the LUN is sliced and dices out of a large heap of storage devices by a storage controller. However I have one problem with the articles and their specific mention of ZFS: You can just hit by this problem when you are using the deduplicating device for the pool. However in the specifically mentioned case of SSD this isn't the usecase. Most implementations of SSD in conjunction with ZFS are hybrid storage pools and so rotating rust disk is used as pool and SSD are used as L2ARC/sZIL. And there it simply doesn't matter: When you really have to resort to the sZIL (your system went down, it doesn't matter of one block or several blocks are corrupt, you have to fail back to the last known good transaction group the device. On the other side, when a block in L2ARC is corrupt, you simply read it from the pool and in HSP implementations this is the already mentioned rust. In conjunction with ZFS this is more interesting when using a storage array, that is capable to do dedup and where you use LUNs for your pool. However as mentioned before, on those devices it's a user made decision to do so, and so it's less probable that you deduplicating your redundancies. Other filesystems lacking acapability similar to hybrid storage pools are more "haunted" by this problem of SSD using dedup-like mechanisms internally, because those filesystem really store the data on the the SSD instead of using it just as accelerating devices. However at the end Robin is correct: It's jet another point why protecting your data by creating redundancies by dispersing it several disks (by mirror or parity RAIDs) is really important. No dedup mechanism inside a device can dedup away your redundancy when you write it to a totally different and indepenent device.

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• Validation and authorization in layered architecture

  - by SonOfPirate

  I know you are thinking (or maybe yelling), "not another question asking where validation belongs in a layered architecture?!?" Well, yes, but hopefully this will be a little bit of a different take on the subject. I am a firm believer that validation takes many forms, is context-based and varies at each level of the architecture. That is the basis for the post - helping to identify what type of validation should be performed in each layer. In addition, a question that often comes up is where authorization checks belong. The example scenario comes from an application for a catering business. Periodically during the day, a driver may turn in to the office any excess cash they've accumulated while taking the truck from site to site. The application allows a user to record the 'cash drop' by collecting the driver's ID, and the amount. Here's some skeleton code to illustrate the layers involved: public class CashDropApi // This is in the Service Facade Layer { [WebInvoke(Method = "POST")] public void AddCashDrop(NewCashDropContract contract) { // 1 Service.AddCashDrop(contract.Amount, contract.DriverId); } } public class CashDropService // This is the Application Service in the Domain Layer { public void AddCashDrop(Decimal amount, Int32 driverId) { // 2 CommandBus.Send(new AddCashDropCommand(amount, driverId)); } } internal class AddCashDropCommand // This is a command object in Domain Layer { public AddCashDropCommand(Decimal amount, Int32 driverId) { // 3 Amount = amount; DriverId = driverId; } public Decimal Amount { get; private set; } public Int32 DriverId { get; private set; } } internal class AddCashDropCommandHandler : IHandle<AddCashDropCommand> { internal ICashDropFactory Factory { get; set; } // Set by IoC container internal ICashDropRepository CashDrops { get; set; } // Set by IoC container internal IEmployeeRepository Employees { get; set; } // Set by IoC container public void Handle(AddCashDropCommand command) { // 4 var driver = Employees.GetById(command.DriverId); // 5 var authorizedBy = CurrentUser as Employee; // 6 var cashDrop = Factory.CreateCashDrop(command.Amount, driver, authorizedBy); // 7 CashDrops.Add(cashDrop); } } public class CashDropFactory { public CashDrop CreateCashDrop(Decimal amount, Employee driver, Employee authorizedBy) { // 8 return new CashDrop(amount, driver, authorizedBy, DateTime.Now); } } public class CashDrop // The domain object (entity) { public CashDrop(Decimal amount, Employee driver, Employee authorizedBy, DateTime at) { // 9 ... } } public class CashDropRepository // The implementation is in the Data Access Layer { public void Add(CashDrop item) { // 10 ... } } I've indicated 10 locations where I've seen validation checks placed in code. My question is what checks you would, if any, be performing at each given the following business rules (along with standard checks for length, range, format, type, etc): The amount of the cash drop must be greater than zero. The cash drop must have a valid Driver. The current user must be authorized to add cash drops (current user is not the driver). Please share your thoughts, how you have or would approach this scenario and the reasons for your choices.

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• KnpLabs / DoctrineBehaviors Translatable - currentLocale = null

  - by Ruben

  Using the trait \Knp\DoctrineBehaviors\Model\Translatable\Translation inside an Entity, I see that the property currentLocale is never setted , so we always obtain the default locale ('en') in all the calls to $this->translate(). If I change this getDefaultLocale, all the translations are made correctly, so I think that is no problem with the fallback. I tried debug the currentLocaleCallable. I see that if I put a "var_dump ($this-container-get('request'));" in the contructor of currentLocaleCallable, the request have a locale to null. And outside the request has the correct locale.It seems that container is not in the scope: request , i don't know how can I get it to work I post an issue in github https://github.com/KnpLabs/DoctrineBehaviors/issues/71 EDITED This service is defined in vendor/knplabs/doctrine-behaviors/config/orm-services.yml and is: knp.doctrine_behaviors.reflection.class_analyzer: class: "%knp.doctrine_behaviors.reflection.class_analyzer.class%" public: false knp.doctrine_behaviors.translatable_listener: class: "%knp.doctrine_behaviors.translatable_listener.class%" public: false arguments: - "@knp.doctrine_behaviors.reflection.class_analyzer" - "%knp.doctrine_behaviors.reflection.is_recursive%" - "@knp.doctrine_behaviors.translatable_listener.current_locale_callable" tags: - { name: doctrine.event_subscriber } knp.doctrine_behaviors.translatable_listener.current_locale_callable: class: "%knp.doctrine_behaviors.translatable_listener.current_locale_callable.class%" arguments: - "@service_container" # lazy request resolution public: false EDIT 2: My composer.json "php": ">=5.3.3", "symfony/symfony": "2.3.*", "doctrine/orm": ">=2.2.3,<2.4-dev", "doctrine/doctrine-bundle": "1.2.*", "twig/extensions": "1.0.*", "symfony/assetic-bundle": "2.3.*", "symfony/swiftmailer-bundle": "2.3.*", "symfony/monolog-bundle": "2.3.*", "sensio/distribution-bundle": "2.3.*", "sensio/framework-extra-bundle": "2.3.*", "sensio/generator-bundle": "2.3.*", "incenteev/composer-parameter-handler": "~2.0", "friendsofsymfony/user-bundle": "1.3.*", "avalanche123/imagine-bundle": "v2.1", "raulfraile/ladybug-bundle": "~1.0", "genemu/form-bundle": "2.2.*", "friendsofsymfony/rest-bundle": "0.12.0", "stof/doctrine-extensions-bundle": "dev-master", "sonata-project/admin-bundle": "dev-master", "a2lix/translation-form-bundle": "1.*@dev", "sonata-project/user-bundle": "dev-master", "psliwa/pdf-bundle": "dev-master", "jms/serializer-bundle": "dev-master", "jms/di-extra-bundle": "dev-master", "knplabs/doctrine-behaviors": "dev-master", "sonata-project/doctrine-orm-admin-bundle": "dev-master", "knplabs/knp-paginator-bundle": "dev-master", "friendsofsymfony/jsrouting-bundle": "~1.1", "zendframework/zend-validator": ">=2.0.0-rc2", "zendframework/zend-barcode": ">=2.0.0-rc2"

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• java.lang.ClassCastException: java.lang.Integer cannot be cast to java.util.HashMap

  - by kongkea

  I've got this Error When I click listview to show full image size. how can i solve it? Error 11-20 10:27:47.039: D/AndroidRuntime(5078): Shutting down VM 11-20 10:27:47.039: W/dalvikvm(5078): threadid=1: thread exiting with uncaught exception (group=0x40c061f8) 11-20 10:27:47.047: E/AndroidRuntime(5078): FATAL EXCEPTION: main 11-20 10:27:47.047: E/AndroidRuntime(5078): java.lang.ClassCastException: java.lang.Integer cannot be cast to java.util.HashMap 11-20 10:27:47.047: E/AndroidRuntime(5078): at com.example.mylistview.MainActivity$1.onItemClick(MainActivity.java:103) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.widget.AdapterView.performItemClick(AdapterView.java:292) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.widget.AbsListView.performItemClick(AbsListView.java:1173) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.widget.AbsListView$PerformClick.run(AbsListView.java:2701) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.widget.AbsListView$1.run(AbsListView.java:3453) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.os.Handler.handleCallback(Handler.java:605) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.os.Handler.dispatchMessage(Handler.java:92) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.os.Looper.loop(Looper.java:137) 11-20 10:27:47.047: E/AndroidRuntime(5078): at android.app.ActivityThread.main(ActivityThread.java:4514) 11-20 10:27:47.047: E/AndroidRuntime(5078): at java.lang.reflect.Method.invokeNative(Native Method) 11-20 10:27:47.047: E/AndroidRuntime(5078): at java.lang.reflect.Method.invoke(Method.java:511) 11-20 10:27:47.047: E/AndroidRuntime(5078): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 11-20 10:27:47.047: E/AndroidRuntime(5078): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 11-20 10:27:47.047: E/AndroidRuntime(5078): at dalvik.system.NativeStart.main(Native Method) MainActivity public class MainActivity extends Activity { public static final int DIALOG_DOWNLOAD_JSON_PROGRESS = 0; private ProgressDialog mProgressDialog; ArrayList<HashMap<String, Object>> MyArrList; @SuppressLint("NewApi") @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Permission StrictMode if (android.os.Build.VERSION.SDK_INT > 9) { StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy); } // Download JSON File new DownloadJSONFileAsync().execute(); } @Override protected Dialog onCreateDialog(int id) { switch (id) { case DIALOG_DOWNLOAD_JSON_PROGRESS: mProgressDialog = new ProgressDialog(this); mProgressDialog.setMessage("Downloading....."); mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); mProgressDialog.setCancelable(true); mProgressDialog.show(); return mProgressDialog; default: return null; } } // Show All Content public void ShowAllContent() { // listView1 final ListView lstView1 = (ListView)findViewById(R.id.listView1); lstView1.setAdapter(new ImageAdapter(MainActivity.this,MyArrList)); lstView1.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View v, int position, long id) { HashMap<String, Object> hm = (HashMap<String, Object>) lstView1.getAdapter().getItem(position); String imagePath = (String) hm.get("photo"); Intent i = new Intent(MainActivity.this,FullImageActivity.class); i.putExtra("fullImage", imagePath); startActivity(i); } }); } public class ImageAdapter extends BaseAdapter { private Context context; private ArrayList<HashMap<String, Object>> MyArr = new ArrayList<HashMap<String, Object>>(); public ImageAdapter(Context c, ArrayList<HashMap<String, Object>> myArrList) { // TODO Auto-generated method stub context = c; MyArr = myArrList; } public int getCount() { // TODO Auto-generated method stub return MyArr.size(); } public Object getItem(int position) { // TODO Auto-generated method stub return position; } public long getItemId(int position) { // TODO Auto-generated method stub return position; } public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); if (convertView == null) { convertView = inflater.inflate(R.layout.activity_column, null); } // ColImage ImageView imageView = (ImageView) convertView.findViewById(R.id.ColImgPath); imageView.getLayoutParams().height = 80; imageView.getLayoutParams().width = 80; imageView.setPadding(5, 5, 5, 5); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); try { imageView.setImageBitmap((Bitmap)MyArr.get(position).get("ImageThumBitmap")); } catch (Exception e) { // When Error imageView.setImageResource(android.R.drawable.ic_menu_report_image); } // ColImgID TextView txtImgID = (TextView) convertView.findViewById(R.id.ColImgID); txtImgID.setPadding(10, 0, 0, 0); txtImgID.setText("ID : " + MyArr.get(position).get("id").toString()); // ColImgName TextView txtPicName = (TextView) convertView.findViewById(R.id.ColImgName); txtPicName.setPadding(50, 0, 0, 0); txtPicName.setText("Name : " + MyArr.get(position).get("first_name").toString()); return convertView; } } // Download JSON in Background public class DownloadJSONFileAsync extends AsyncTask<String, Void, Void> { protected void onPreExecute() { super.onPreExecute(); showDialog(DIALOG_DOWNLOAD_JSON_PROGRESS); } @Override protected Void doInBackground(String... params) { // TODO Auto-generated method stub String url = "http://192.168.10.104/adchara1/"; JSONArray data; try { data = new JSONArray(getJSONUrl(url)); MyArrList = new ArrayList<HashMap<String, Object>>(); HashMap<String, Object> map; for(int i = 0; i < data.length(); i++){ JSONObject c = data.getJSONObject(i); map = new HashMap<String, Object>(); map.put("id", (String)c.getString("id")); map.put("first_name", (String)c.getString("first_name")); // Thumbnail Get ImageBitmap To Object map.put("photo", (String)c.getString("photo")); map.put("ImageThumBitmap", (Bitmap)loadBitmap(c.getString("photo"))); // Full (for View Popup) map.put("frame", (String)c.getString("frame")); MyArrList.add(map); } } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } protected void onPostExecute(Void unused) { ShowAllContent(); // When Finish Show Content dismissDialog(DIALOG_DOWNLOAD_JSON_PROGRESS); removeDialog(DIALOG_DOWNLOAD_JSON_PROGRESS); } } /*** Get JSON Code from URL ***/ public String getJSONUrl(String url) { StringBuilder str = new StringBuilder(); HttpClient client = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(url); try { HttpResponse response = client.execute(httpGet); StatusLine statusLine = response.getStatusLine(); int statusCode = statusLine.getStatusCode(); if (statusCode == 200) { // Download OK HttpEntity entity = response.getEntity(); InputStream content = entity.getContent(); BufferedReader reader = new BufferedReader(new InputStreamReader(content)); String line; while ((line = reader.readLine()) != null) { str.append(line); } } else { Log.e("Log", "Failed to download file.."); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return str.toString(); } /***** Get Image Resource from URL (Start) *****/ private static final String TAG = "Image"; private static final int IO_BUFFER_SIZE = 4 * 1024; public static Bitmap loadBitmap(String url) { Bitmap bitmap = null; InputStream in = null; BufferedOutputStream out = null; try { in = new BufferedInputStream(new URL(url).openStream(), IO_BUFFER_SIZE); final ByteArrayOutputStream dataStream = new ByteArrayOutputStream(); out = new BufferedOutputStream(dataStream, IO_BUFFER_SIZE); copy(in, out); out.flush(); final byte[] data = dataStream.toByteArray(); BitmapFactory.Options options = new BitmapFactory.Options(); //options.inSampleSize = 1; bitmap = BitmapFactory.decodeByteArray(data, 0, data.length,options); } catch (IOException e) { Log.e(TAG, "Could not load Bitmap from: " + url); } finally { closeStream(in); closeStream(out); } return bitmap; } private static void closeStream(Closeable stream) { if (stream != null) { try { stream.close(); } catch (IOException e) { android.util.Log.e(TAG, "Could not close stream", e); } } } private static void copy(InputStream in, OutputStream out) throws IOException { byte[] b = new byte[IO_BUFFER_SIZE]; int read; while ((read = in.read(b)) != -1) { out.write(b, 0, read); } } /***** Get Image Resource from URL (End) *****/ @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } } FullImageActivity String imagePath = getIntent().getStringExtra("fullImage"); if(imagePath != null && !imagePath.isEmpty()){ File imageFile = new File(imagePath); if(imageFile.exists()){ Bitmap myBitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath()); ImageView iv = (ImageView) findViewById(R.id.fullimage); iv.setImageBitmap(myBitmap); } }

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• Core Data migration problem: "Persistent store migration failed, missing source managed object model

  - by John Gallagher

  The Background A Cocoa Non Document Core Data project with two Managed Object Models. Model 1 stays the same. Model 2 has changed, so I want to migrate the store. I've created a new version by Design Data Model Add Model Version in Xcode. The difference between versions is a single relationship that's been changed from to a one to many. I've made my changes to the model, then saved. I've made a new Mapping Model that has the old model as a source and new model as a destination. I've ensured all Mapping Models and Data Models and are being compiled and all are copied to the Resource folder of my app bundle. I've switched on migrations by passing in a dictionary with the NSMigratePersistentStoresAutomaticallyOption key as [NSNumber numberWithBool:YES] when adding the Persistent Store. Rather than merging all models in the bundle, I've specified the two models I want to use (model 1 and the new version of model 2) and merged them using modelByMergingModels: The Problem No matter what I do to migrate, I get the error message: "Persistent store migration failed, missing source managed object model." What I've Tried I clean after every single build. I've tried various combinations of having only the model I'm migrating to in Resources, being compiled, or both. Since the error message implies it can't find the source model for my migration, I've tried having every version of the model in both the Resources folder and being compiled. I've made sure I'm not making a really basic error by switching back to the original version of my data model. The app runs fine. I've deleted the Mapping Model and the new version of the model, cleaned, then recreated both. I've tried making a different change in the new model - deleting an entity instead. I'm at my wits end. I can't help but think I've made a huge mistake somewhere that I'm not seeing. Any ideas?

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• Dynamics CRM error "A currency is required if a value exists in a money field" after converting Acti

  - by Evgeny

  We have a Dynamics CRM 4.0 instance with some custom attributes of type "money" on the Case entity and on all Activity entities (Email, Phone Call, etc.) When I use the built-in "Convert Activity to Case" functionality I find that the resulting Case does not have a Currency set, even if the Activity it was created from does have it. Whenever the case is opened the user then gets this JavaScript error: A currency is required if a value exists in a money field. Select a currency and try again. This is extremely annoying! How do I fix it? Is there any way I can set the currency? It needs to be done synchronously, because the Case is opened immediately when it's created from an Activity. So even if I started a workflow to set the currency the user would still get that error at least once. Alterntatively, can I just suppress the warning somehow? I don't really care about setting the Currency, I just want the error gone. Thanks in advance for any help!

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• Ajax call from a form rendered as Ajax response (jQuery + Grails: chaining ajax requests)

  - by bsreekanth

  Hello, I was expecting the below scenario common, but couldn't find much help online. I have a form loaded through Ajax (say, create entity form). It is loaded through a button click (load) event $("#bt-create").click(function(){ $ ('#pid').load('/controller/vehicleModel/create3'); return false; }); the response (a form) is written in to the pid element. The name and id of the form is ajax-form, and the submit event is attached to an ajax post request $(function() { $("#ajax-form").submit(function(){ // do something... var url = "/app/controller/save" $.post(url, $(this).serialize(), function(data) { alert( data ) ; /// alert data from server }); I could make the above ajax operations individually. That is the ajax post operation succeeds if it calls from a static html file. But if I chain the requests (after completing the first), so that it calls from the output form generated by the first request, nothing happens. I could see the post method is called through firebug. Is there a better way to handle above flow? One more interesting thing I noticed. As you could see, I use grails as my platform. If I keep the javascripts in the main.gsp (master layout), the submit event would not register as the breakpoint is not hit in firebug. But, if I define the javascript in the template file (which renders the form above), the breakpoint is hit, but as I explained, the action is not called at the controller. I changes the javascript to the head section but same result. any help greatly appreciated. thanks, Babu.

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• Unable to determine the provider name for connection of type 'System.Data.SqlServerCe.SqlCeConnectio

  - by Hobbes1312

  Hi, i am using the Ado.Net Entity Framework with Code Only (Tutorial at: ADO.NET team blog) and i want to be as much database independent as possible. In my first approach i just want to go for Sql Express and Sql Compact databases. With Sql Express everthing works fine but with Sql Compact i get the exception mentioned in my question. Does anybody knows if it is possible to connect to Sql Compact with the Code Only approach? (with a generated .edmx file for a Sql Compact database everthing works fine, but i want to use code only!) Here is some code: My Class which is building the DataContext: public class DataContextBuilder : IDataContextBuilder { private readonly DbProviderFactory _factory; public DataContextBuilder(DbProviderFactory factory) { _factory = factory; } #region Implementation of IDataContextBuilder public IDataContext CreateDataContext(string connectionString) { var builder = new ContextBuilder<DataContext>(); RegisterConfiguration(builder); var connection = _factory.CreateConnection(); connection.ConnectionString = connectionString; var ctx = builder.Create(connection); return ctx; } #endregion private void RegisterConfiguration(ContextBuilder<DataContext> builder) { builder.Configurations.Add(new PersonConfiguration()); } } The line var ctx = builder.Create(connection); is throwing the exception. The IDataContext is just a simple Interface for the ObjectContext: public interface IDataContext { int SaveChanges(); IObjectSet<Person> PersonSet { get; } } My connection string is configured in the app.config: <connectionStrings> <add name="CompactConnection" connectionString="|DataDirectory|\Test.sdf" providerName="System.Data.SqlServerCe.3.5" /> </connectionStrings> And the build action is started with var cn = ConfigurationManager.ConnectionStrings["CompactConnection"]; var factory = DbProviderFactories.GetFactory(cn.ProviderName); var builder = new DataContextBuilder(factory); var context = builder.CreateDataContext(cn.ConnectionString);

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• How to retrieve value from DropDownListFor html helper in ASP>NET MVC2?

  - by Eedoh

  Hello I know there was few similar questions here about DropDownListFor, but neither helped me... I use Entity Framework as ORM in my project. There's EF model called "Stete". Stete has Foreign on EF model called "Drustva" Now I'm trying to make a form for editing the data, for Stete model. I managed to display everything, including Stete.Drustva.Naziv property, but I can't get this last property in my handler method [HttpPost]. It always return 0, no matter what I select in drop down list. Here's the code: DrustvaController: public static IEnumerable<SelectListItem> DrustvaToSelectListItemsById(this KnjigaStetnikaEntities pEntities, int Id) { IEnumerable<Drustva> drustva = (from d in pEntities.Drustva select d).ToList(); return drustva.OrderBy(drustvo => drustvo.Naziv).Select(drustvo => new SelectListItem { Text = drustvo.Naziv, Value = drustvo.Id.ToString(), Selected = (drustvo.Id == Id)? true : false }); } SteteController: private IEnumerable<SelectListItem> privremenaListaDrustava(int Id) { using (var ctx = new KnjigaStetnikaEntities()) { return ctx.DrustvaToSelectListItemsById(Id); } } public ActionResult IzmijeniPodatkeStete(Int32 pBrojStete) { PretragaStetaModel psm = new PretragaStetaModel(); ViewData["drustva"] = privremenaListaDrustava(psm.VratiStetuPoBrojuStete(pBrojStete).Drustva.Id); ViewData.Model = new Models.Stete(); return View("EditView", (Stete.Models.Stete)psm.GetSteta(pBrojStete)); } EditView: <div class="editor-label"> <%: Html.Label("Društvo") %> </div> <div class="editor-field"> <%: Html.DropDownListFor(m => m.Drustva.Naziv, ViewData["drustva"] as IEnumerable<SelectListItem>) %> <%: Html.ValidationMessageFor(model => model.FKDrustvo) %> </div> I am sorry for not translating names of the objects into english, but they hardly have appropriate translation. If necessary, I can try creating similar example...

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• Solr DataImportHandler configuration

  - by talo

  I want to get data from mysql database with the help of DataImportHandler so i can create indexes. Now I've configured my Solr instance so that it works on Tomcat (the example admin page), but if I try to change the sorlconfig.xml file i'll get the error message. I'm working with Solr 3.6 So my configuration is: In solrconfig.xml i added: <dataDir>${solr.data.dir:/usr/share/tomcat7/solr2}</dataDir> to specify my working directory and then <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler"> <lst name="defaults"> <str name="config">/usr/share/tomcat7/solr2/conf/data-config.xml</str> </lst> </requestHandler> to specify new request handler. Theese two are my lib directives for DIH. Do i need to change them? <lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" /> <lib dir="../../contrib/dataimporthandler/lib/" regex=".*\.jar" /> I also created data-config.xml file and added following: <?xml version="1.0" encoding="UTF-8"?> <dataConfig> <dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/ethicsweb_experts" user="root" password=""/> <document> <entity name="experts" datasource="mysql" pk="mainid" query="SELECT experts.mainid as mainid FROM experts WHERE validRec = 'y'"> <field column="mainid" name="mainid"/> <field column="validRec" name="validRec"/> </entity> </document> I've coppied following jars to tomcat/lib folder (DIH jar files and mysql JDBC connector jar file) apache-solr-dataimporthandler-3.6.0.jar apache-solr-dataimporthandler-extras-3.6.0.jar mysql-connector-java-5.1.20-bin.jar Also in the schema.xml file i added folowing fields: <field name="mainid" type="int" indexed="true" stored="true" /> <field name="validRec" type="string" indexed="true" stored="true" /> <field name="recSource" type="string" indexed="true" stored="true" /> <uniqueKey>mainid</uniqueKey> But now when i try to acces: http://localhost:8080/solr2/ I get following output: HTTP Status 500 - Severe errors in solr configuration. Check your log files for more detailed information on what may be wrong. If you want solr to continue after configuration errors, change: false in solr.xml ------------------------------------------------------------- org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) ------------------------------------------------------------- java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1698) at java.lang.ClassLoader.loadClass(ClassLoader.java:410) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:419) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:455) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:159) at org.apache.solr.core.SolrCore.(SolrCore.java:563) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219) at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 47 more My log entries show me that: SEVERE: java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1698) at java.lang.ClassLoader.loadClass(ClassLoader.java:410) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:419) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:455) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:159) at org.apache.solr.core.SolrCore.(SolrCore.java:563) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335) at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219) at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 47 more Jun 15, 2012 4:07:50 PM org.apache.solr.servlet.SolrDispatchFilter init SEVERE: Could not start Solr. Check solr/home property and the logs org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Jun 15, 2012 4:07:50 PM org.apache.solr.common.SolrException log SEVERE: org.apache.solr.common.SolrException: No cores were created, please check the logs for errors at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:172) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) So now I wonder where did i screw up the configuration for the DataImportHandler. Do i need to specify more jar files? Did i put jar files in the correct directory? Any help would be greatly appreciated.

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• Listview of items from a object selected in another listview

  - by Ingó Vals

  Ok the title maybe a little confusing. I have a database with the table Companies wich has one-to-many relotionship with another table Divisions ( so each company can have many divisions ) and division will have many employees. I have a ListView of the companies. What I wan't is that when I choose a company from the ListView another ListView of divisions within that company appears below it. Then I pick a division and another listview of employees within that division appaers below that. You get the picture. Is there anyway to do this mostly inside the XAML code declaritively (sp?). I'm using linq so the Company entity objects have a property named Division wich if I understand linq correctly should include Division objects of the divisions connected to the company. So after getting all the companies and putting them as a itemsource to CompanyListView this is where I currently am. <ListView x:Name="CompanyListView" DisplayMemberPath="CompanyName" Grid.Row="0" Grid.Column="0" /> <ListView DataContext="{Binding ElementName=CompanyListView, Path=SelectedItem}" DisplayMemberPath="Division.DivisionName" Grid.Row="1" Grid.Column="0" /> I know I'm way off but I was hoping by putting something specific in the DataContext and DisplayMemberPath I could get this to work. If not then I have to capture the Id of the company I guess and capture a select event or something. Another issue but related is the in the seconde column besides the lisview I wan't to have a details/edit view for the selected item. So when only a company is selected details about that will appear then when a division under the company is picked It will go there instead, any ideas?

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• SharePoint: You cannot grant limited access permission level

  - by chiccodoro

  In my team, we implemented some UI to set user access rights (assign/revoke permission levels) on a certain SharePoint list. The UI supplies a "undo" feature: If you change the rights over the UI, you can restore the rights the user had before by clicking "undo". Now there is a problem if the user had the "Limited Access" permission level: This permission level is removed when you do a change over the UI. When trying to Undo, the permission level should be added again, which leads to a You cannot grant a user the limited access permission level. I've read that SharePoint grants that right automatically when a user gets access to some entity beneath the site. Still I can revoke the right manually, but then I cannot re-grant it. Is there a proper way I could work around that? My thoughts: Did I get it right that this "limited access" is granted by SharePoint on the site level only? So, do all the lists beneath the site only contain that permission level "accidentally" because they inherit it? Does that permission level have any effect at all on a list, or does it only apply to the site itself? So, would it be save to just remove it from a list and do not add it anymore when the user clicks "undo", since it has no effect anyway? (My UI always works on list / list item level, never on the whole site/web).

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• Hibernate + PostgreSQL : relation does not exist - SQL Error: 0, SQLState: 42P01

  - by tommy599

  Hello, I am having some problems trying to work with PostgreSQL and Hibernate, more specifically, the issue mentioned in the title. I've been searching the net for a few hours now but none of the found solutions worked for me. I am using Eclipse Java EE IDE for Web Developers. Build id: 20090920-1017 with HibernateTools, Hibernate 3, PostgreSQL 8.4.3 on Ubuntu 9.10. Here are the relevant files: Message.class package hello; public class Message { private Long id; private String text; public Message() { } public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getText() { return text; } public void setText(String text) { this.text = text; } } Message.hbm.xml <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="hello"> <class name="Message" table="public.messages"> <id name="id" column="id"> <generator class="assigned"/> </id> <property name="text" column="messagetext"/> </class> </hibernate-mapping> hibernate.cfg.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">org.postgresql.Driver</property> <property name="hibernate.connection.password">bar</property> <property name="hibernate.connection.url">jdbc:postgresql:postgres/tommy</property> <property name="hibernate.connection.username">foo</property> <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property> <property name="show_sql">true</property> <property name="log4j.logger.org.hibernate.type">DEBUG</property> <mapping resource="hello/Message.hbm.xml"/> </session-factory> </hibernate-configuration> Main package hello; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; public class App { public static void main(String[] args) { SessionFactory sessionFactory = new Configuration().configure() .buildSessionFactory(); Message message = new Message(); message.setText("Hello Cruel World"); message.setId(2L); Session session = null; Transaction transaction = null; try { session = sessionFactory.openSession(); transaction = session.beginTransaction(); session.save(message); } catch (Exception e) { System.out.println("Exception attemtping to Add message: " + e.getMessage()); } finally { if (session != null && session.isOpen()) { if (transaction != null) transaction.commit(); session.flush(); session.close(); } } } } Table structure: foo=# \d messages Table "public.messages" Column | Type | Modifiers -------------+---------+----------- id | integer | messagetext | text | Eclipse console output when I run it Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Environment <clinit> INFO: Hibernate 3.5.1-Final Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Environment <clinit> INFO: hibernate.properties not found Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Environment buildBytecodeProvider INFO: Bytecode provider name : javassist Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Environment <clinit> INFO: using JDK 1.4 java.sql.Timestamp handling Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Configuration configure INFO: configuring from resource: /hibernate.cfg.xml Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Configuration getConfigurationInputStream INFO: Configuration resource: /hibernate.cfg.xml Apr 28, 2010 11:13:53 PM org.hibernate.cfg.Configuration addResource INFO: Reading mappings from resource : hello/Message.hbm.xml Apr 28, 2010 11:13:54 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues INFO: Mapping class: hello.Message -> public.messages Apr 28, 2010 11:13:54 PM org.hibernate.cfg.Configuration doConfigure INFO: Configured SessionFactory: null Apr 28, 2010 11:13:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: Using Hibernate built-in connection pool (not for production use!) Apr 28, 2010 11:13:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: Hibernate connection pool size: 20 Apr 28, 2010 11:13:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: autocommit mode: false Apr 28, 2010 11:13:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: using driver: org.postgresql.Driver at URL: jdbc:postgresql:postgres/tommy Apr 28, 2010 11:13:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: connection properties: {user=foo, password=****} Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: RDBMS: PostgreSQL, version: 8.4.3 Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC driver: PostgreSQL Native Driver, version: PostgreSQL 8.4 JDBC4 (build 701) Apr 28, 2010 11:13:54 PM org.hibernate.dialect.Dialect <init> INFO: Using dialect: org.hibernate.dialect.PostgreSQLDialect Apr 28, 2010 11:13:54 PM org.hibernate.engine.jdbc.JdbcSupportLoader useContextualLobCreation INFO: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException Apr 28, 2010 11:13:54 PM org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory INFO: Using default transaction strategy (direct JDBC transactions) Apr 28, 2010 11:13:54 PM org.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup INFO: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended) Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Automatic flush during beforeCompletion(): disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Automatic session close at end of transaction: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC batch size: 15 Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC batch updates for versioned data: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Scrollable result sets: enabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC3 getGeneratedKeys(): enabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Connection release mode: auto Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Default batch fetch size: 1 Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Generate SQL with comments: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Order SQL updates by primary key: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Order SQL inserts for batching: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory INFO: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory Apr 28, 2010 11:13:54 PM org.hibernate.hql.ast.ASTQueryTranslatorFactory <init> INFO: Using ASTQueryTranslatorFactory Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Query language substitutions: {} Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: JPA-QL strict compliance: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Second-level cache: enabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Query cache: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory createRegionFactory INFO: Cache region factory : org.hibernate.cache.impl.NoCachingRegionFactory Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Optimize cache for minimal puts: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Structured second-level cache entries: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Echoing all SQL to stdout Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Statistics: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Deleted entity synthetic identifier rollback: disabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Default entity-mode: pojo Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Named query checking : enabled Apr 28, 2010 11:13:54 PM org.hibernate.cfg.SettingsFactory buildSettings INFO: Check Nullability in Core (should be disabled when Bean Validation is on): enabled Apr 28, 2010 11:13:54 PM org.hibernate.impl.SessionFactoryImpl <init> INFO: building session factory Apr 28, 2010 11:13:55 PM org.hibernate.impl.SessionFactoryObjectFactory addInstance INFO: Not binding factory to JNDI, no JNDI name configured Hibernate: insert into public.messages (messagetext, id) values (?, ?) Apr 28, 2010 11:13:55 PM org.hibernate.util.JDBCExceptionReporter logExceptions WARNING: SQL Error: 0, SQLState: 42P01 Apr 28, 2010 11:13:55 PM org.hibernate.util.JDBCExceptionReporter logExceptions SEVERE: Batch entry 0 insert into public.messages (messagetext, id) values ('Hello Cruel World', '2') was aborted. Call getNextException to see the cause. Apr 28, 2010 11:13:55 PM org.hibernate.util.JDBCExceptionReporter logExceptions WARNING: SQL Error: 0, SQLState: 42P01 Apr 28, 2010 11:13:55 PM org.hibernate.util.JDBCExceptionReporter logExceptions SEVERE: ERROR: relation "public.messages" does not exist Position: 13 Apr 28, 2010 11:13:55 PM org.hibernate.event.def.AbstractFlushingEventListener performExecutions SEVERE: Could not synchronize database state with session org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:179) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1206) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:375) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137) at hello.App.main(App.java:31) Caused by: java.sql.BatchUpdateException: Batch entry 0 insert into public.messages (messagetext, id) values ('Hello Cruel World', '2') was aborted. Call getNextException to see the cause. at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2569) at org.postgresql.core.v3.QueryExecutorImpl$1.handleError(QueryExecutorImpl.java:459) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1796) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:407) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2708) at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268) ... 8 more Exception in thread "main" org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:179) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1206) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:375) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137) at hello.App.main(App.java:31) Caused by: java.sql.BatchUpdateException: Batch entry 0 insert into public.messages (messagetext, id) values ('Hello Cruel World', '2') was aborted. Call getNextException to see the cause. at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2569) at org.postgresql.core.v3.QueryExecutorImpl$1.handleError(QueryExecutorImpl.java:459) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1796) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:407) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2708) at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268) ... 8 more PostgreSQL log file 2010-04-28 23:13:55 EEST LOG: execute S_1: BEGIN 2010-04-28 23:13:55 EEST ERROR: relation "public.messages" does not exist at character 13 2010-04-28 23:13:55 EEST STATEMENT: insert into public.messages (messagetext, id) values ($1, $2) 2010-04-28 23:13:55 EEST LOG: unexpected EOF on client connection If I copy/paste the query into the postgre command line and put the values in and ; after it, it works. Everything is lowercase, so I don't think that it's that issue. If I switch to MySQL, the same code same project (I only change driver,URL, authentication), it works. In Eclipse Datasource Explorer, I can ping the DB and it succeeds. Weird thing is that I can't see the tables from there either. It expands the public schema but it doesn't expand the tables. Could it be some permission issue? Thanks!

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• Manual (Dynamic) LINQ subquery using IN clause

  - by immortalali-msn-com

  Hi Everyone, I want to query the DB through LINQ writing manual SQL, my linq method is: var q = db.TableView.Where(sqlAfterWhere); returnValue = q.Count(); this method queries well if the value passed to variable "sqlAfterWhere" is: (this variable is String type) it.Name = 'xyz' but what if i want to use IN clause, using a sub query. (i need to use 'it' before every column name in the above query to work), i cant use 'it' before the sub query columns as its a separate query, so what should i do, if i dont use any thing, and use column names directly it gives error saying " could not be resolved" where is my column names with out 'it' at the begining. So the query not working is: (this is a string passed to the variable above): it.Name IN (SELECT Name FROM TableName WHERE Address LIKE '%SomeAddress%') the errors come out as: Name could not be resolved Address could not be resolved The exact error is: "'Name' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly., near simple identifier, line 6, column 25." Same error for "Address as well if i use 'it.' before these columns it gives error as: "The element type 'Edm.Int32' and the CollectionType 'Transient.collection[Transient.rowtype(GroupID,Edm.Int32(Nullable=True,DefaultValue=))]' are not compatible. The IN expression only supports entity, primitive, and reference types. , near WHERE predicate, line 6, column 14." Thanks for the help

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• NHibernate SubclassMap gives DuplicateMappingException

  - by stiank81

  I'm using NHibernate to handle my database - with Fluent configuration. I'm not using Automappings. All mappings are written explicitly, and everything is working just fine. Now I wanted to add my first mapping to a subclass, using the SubclassMap, and I run into problems. With the simplest possible setup an Nhibernate DuplicateMappingException is thrown, saying that the subclass is mapped more than once: NHibernate.MappingException : Could not compile the mapping document: (XmlDocument) ---- NHibernate.DuplicateMappingException : Duplicate class/entity mapping MyNamespace.SubPerson I get this with my simple classes written for testing: public class Person { public int Id { get; set; } public string Name { get; set; } } public class SubPerson : Person { public string Foo { get; set; } } With the following mappings: public class PersonMapping : ClassMap<Person> { public PersonMapping() { Not.LazyLoad(); Id(c => c.Id); Map(c => c.Name); } } public class SubPersonMapping : SubclassMap<SubPerson> { public SubPersonMapping() { Not.LazyLoad(); Map(m => m.Foo); } } Any idea why this is happening? If there were automappings involved I guess it might have been caused by the automappings adding a mapping too, but there should be no automapping. I create my database specifying a fluent mapping: private static ISession CreateSession() { var cfg = Fluently.Configure(). Database(SQLiteConfiguration.Standard.ShowSql().UsingFile("unit_test.db")). Mappings(m => m.FluentMappings.AddFromAssemblyOf<SomeClassInTheAssemblyContainingAllMappings>()); var sessionSource = new SessionSource(cfg.BuildConfiguration().Properties, new TestModel()); var session = sessionSource.CreateSession(); _sessionSource.BuildSchema(session); return session; } Again; note that this only happens with SubclassMap. ClassMap's are working just fine!

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• Java XML Unmarshalling fails on ampersand (&amp;) using JAXB

  - by ryanprayogo

  I have the following XML: <?xml version="1.0" encoding="UTF-8"?> <details> ... <address1>Test&amp;Address</address1> ... </details> When I try to unmarshal it using JAXB, it throws the following exception: Caused by: org.xml.sax.SAXParseException: The reference to entity "Address" must end with the ';' delimiter. at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source) at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEntityReference(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:194) But when I changed the &amp; in the XML to &apos;, it works. Looks like the problem is only with ampersand &amp; and I cannot understand why. The code to unmarshal is: JAXBContext context = JAXBContext.newInstance("some.package.name", this.getClass().getClassLoader()); Unmarshaller unmarshaller = context.createUnmarshaller(); obj = unmarshaller.unmarshal(new StringReader(xml)); Anyone have some insight?

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• How do I properly host a WCF Data Service in IIS? Why am I getting errors?

  - by j0rd4n

  I'm playing around with WCF Data Services (ADO.NET Data Services). I have an entity framework model pointed at the AdventureWorks database. When I debug my svc file from within Visual Studio, it works great. I can say /awservice.svc/Customers and get back the ATOM feed I expect. If I publish the service (hosted in an ASP.NET web application) to IIS7, the same query string returns a 500 fault. The root svc page itself works as expected and successfully returns ATOM. The /Customers path fails. Here is what my grants look like in the svc file: public class AWService : DataService<AWEntities> { public static void InitializeService( DataServiceConfiguration config ) { config.SetEntitySetAccessRule( "*", EntitySetRights.All ); config.SetServiceOperationAccessRule( "*", ServiceOperationRights.All ); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2; } } Update: I enabled verbose errors and get the following in the XML message: <innererror> <message>The underlying provider failed on Open.</message> <type>System.Data.EntityException</type> <stacktrace> at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf( ... ... <internalexception> <message> Login failed for user 'IIS APPPOOL\DefaultAppPool'. </message> <type>System.Data.SqlClient.SqlException</type> <stacktrace> at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, ...

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• Cant insert row with auto-increment key via FluentNhibernate

  - by Jeff Shattock

  I'm getting started with Fluent NHibernate, and NHibernate in general. I'm trying to do something that I feel is pretty basic, but I cant quite get it to work. I'm trying to add a new entry to a simple table. Here's the Entity class. public class Product { public Product() { id = 0; } public virtual int id {get; set;} public virtual string description { get; set; } } Here's its mapping. public class ProductMap : ClassMap<Product> { public ProductMap() { Id(p => p.id).GeneratedBy.Identity().UnsavedValue(0); Map(p => p.description); } } I've tried that with and without the additional calls after Id(). And the insert code: var p = new Product() { description = "Apples" }; using (var s = _sf.CreateSession()) { s.Save(new_product); s.Flush(); } where _sf is a properly configured SessionSource. When I execute this code, I get: NHibernate.AssertionFailure : null identifier, which makes sense based on the SQL that NHibernate is executing: INSERT INTO "Product" (description) VALUES (@p0);@p0 = 'Apples' It doesnt seem to be trying to set the Id field, which seems ok (on its face) since the DB should generate that. But its not, I think. The DB schema is autogenerated by FNH: var config = Fluently.Configure().Database(MsSqlCeConfiguration.Standard.ShowSql().ConnectionString(@"Data Source=Database1.sdf")); var SessionSource = new SessionSource(config.BuildConfiguration().Properties, new ModelMappings()); var Session = SessionSource.CreateSession(); SessionSource.BuildSchema(Session); CreateInitialData(Session); Session.Flush(); Session.Clear(); I'm sure to be doing tons of things wrong, but whats the one thats causing this error?

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• LinqToSql - Parallel - DataContext and Parallel

  - by Gregoire

  In .NET 4 and multicore environment, does the linq to sql datacontext object take advantage of the new parallels if we use DataLoadOptions.LoadWith? EDIT I know linq to sql does not parallelize ordinary queries. What I want to know is when we specify DataLoadOption.LoadWith, does it use parallelization to perform the match between each entity and its sub entities? Example: using(MyDataContext context = new MyDataContext()) { DataLaodOptions options =new DataLoadOptions(); options.LoadWith<Product>(p=>p.Category); return this.DataContext.Products.Where(p=>p.SomeCondition); } generates the following sql: Select Id,Name from Categories Select Id,Name, CategoryId from Products where p.SomeCondition when all the products are created, will we have a categories.ToArray(); Parallel.Foreach(products, p => { p.Category == categories.FirstOrDefault(c => c.Id == p.CategoryId); }); or categories.ToArray(); foreach(Product product in products) { product.Category = categories.FirstOrDefault(c => c.Id == product.CategoryId); } ?

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• MVVM Light Toolkit - RelayCommands, DelegateCommands, and ObservableObjects

  - by DanM

  I just started experimenting with Laurent Bugnion's MVVM Light Toolkit. I think I'm going to really like it, but I have a couple questions. Before I get to them, I need to explain where I'm coming from. I currently use a combination of Josh Smith's MVVM Foundation and another project on Codeplex called MVVM Toolkit. I use ObservableObject and Messenger from MVVM Foundation and DelegateCommand and CommandReference from MVVM Toolkit. The only real overlap between MVVM Foundation and MVVM Tookit is that they both have an implementation for ICommand: MVVM Foundation has a RelayCommand and MVVM Tookit has a DelegateCommand. Of these two, DelegateCommand appears to be more sophisticated. It employs a CommandManagerHelper that uses weak references to avoid memory leaks. With that said, a couple questions: Why does MVVM Light Toolkit use RelayCommand rather than DelegateCommand? Is the use of weak references in an ICommand unnecessary or not recommended for some reason? Why is there no ObservableObject in MVVM Light? ObservableObject is basically just the part of ViewModelBase that implements INotifyPropertyChanged, but it's very convenient to have as a separate class because view-models are not the only objects that need to implement INotifyPropertyChanged. For example, let's say you have DataGrid that binds to a list of Person objects. If any of the properties in Person can change while the user is viewing the DataGrid, Person would need to implement INotifyPropertyChanged. (I realize that if Person is auto-generated using something like LinqToSql, it will probably already implement INotifyPropertyChanged, but there are cases where I need to make a view-specific version of entity model objects, say, because I need to include a command to support a button column in a DataGrid.) Thanks.

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• Using M2Crypto to save and load X509 certs in pem files

  - by Brock Pytlik

  I would expect that if I have a X509 cert as an object in memory, saved it as a pem file, then loaded it back in, I would end up with the same cert I started with. This seems not to be the case however. Let's call the original cert A, and the cert loaded from the pem file B. A.as_text() is identical to B.as_text(), but A.as_pem() differs from B.as_pem(). To say the least, I'm confused by this. As a side note, if A has been signed by another entity C, then A will verify against C's cert, but B will not. I've put together a tiny sample program to demonstrate what I'm seeing. When I run this, the second RuntimeError is raised. Thanks, Brock #!/usr/bin/python2.6 import M2Crypto as m2 import time cur_time = m2.ASN1.ASN1_UTCTIME() cur_time.set_time(int(time.time()) - 60*60*24) expire_time = m2.ASN1.ASN1_UTCTIME() # Expire certs in 1 hour. expire_time.set_time(int(time.time()) + 60 * 60 * 24) cs_rsa = m2.RSA.gen_key(1024, 65537, lambda: None) cs_pk = m2.EVP.PKey() cs_pk.assign_rsa(cs_rsa) cs_cert = m2.X509.X509() # These two seem the minimum necessary to make the as_text function call work # at all cs_cert.set_not_before(cur_time) cs_cert.set_not_after(expire_time) # This seems necessary to fill out the complete cert without errors. cs_cert.set_pubkey(cs_pk) # I've tried with the following set lines commented out and not commented. cs_name = m2.X509.X509_Name() cs_name.C = "US" cs_name.ST = "CA" cs_name.OU = "Fake Org CA 1" cs_name.CN = "www.fakeorg.dex" cs_name.Email = "[email protected]" cs_cert.set_subject(cs_name) cs_cert.set_issuer_name(cs_name) cs_cert.sign(cs_pk, md="sha256") orig_text = cs_cert.as_text() orig_pem = cs_cert.as_pem() print "orig_text:\n%s" % orig_text cs_cert.save_pem("/tmp/foo") tcs = m2.X509.load_cert("/tmp/foo") tcs_text = tcs.as_text() tcs_pem = tcs.as_pem() if orig_text != tcs_text: raise RuntimeError( "Texts were different.\nOrig:\n%s\nAfter load:\n%s" % (orig_text, tcs_text)) if orig_pem != tcs_pem: raise RuntimeError( "Pems were different.\nOrig:\n%s\nAfter load:\n%s" % (orig_pem, tcs_pem))

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