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• In OpenRasta is it possible to Pattern match multiple key/value pairs?

  - by Scott Littlewood

  Is it possible in OpenRasta to have a Uri pattern that allows for an array of values of the same key to be submitted and mapped to a handler method accepting an array of the query parameters. Example: Return all the contacts named Dave Smith from a collection. HTTP GET /contacts?filterBy=first&filterValue=Dave&filterBy=last&filterValue=Smith With a configuration of: What syntax would be best for the Uri string pattern matching? (Suggestions welcome) ResourceSpace.Has.ResourcesOfType<List<ContactResource>>() .AtUri("/contacts") .And.AtUri("/contacts?filterBy[]={filterBy}[]&filterValue[]={fv}[]") // Option 1 .And.AtUri("/contacts?filterBy={filterBy}[]&fv={fv}[]") // Option 2 Would map to a Handler method of: public object Get(params Filter[] filters) { /* create a Linq Expression based on the filters using dynamic linq query the repository using the Linq */ return Query.All<Contact>().Where(c => c.First == "Dave" && c.Last == "Smith").ToResource() } where Filter is defined by public class Filter { public string FilterBy { get; set; } public string FilterValue { get; set; } }

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• Is testability alone justification for dependency injection?

  - by fearofawhackplanet

  The advantages of DI, as far as I am aware, are: Reduced Dependencies More Reusable Code More Testable Code More Readable Code Say I have a repository, OrderRepository, which acts as a repository for an Order object generated through a Linq to Sql dbml. I can't make my orders repository generic as it performs mapping between the Linq Order entity and my own Order POCO domain class. Since the OrderRepository by necessity is dependent on a specific Linq to Sql DataContext, parameter passing of the DataContext can't really be said to make the code reuseable or reduce dependencies in any meaningful way. It also makes the code harder to read, as to instantiate the repository I now need to write new OrdersRepository(new MyLinqDataContext()) which additionally is contrary to the main purpose of the repository, that being to abstract/hide the existence of the DataContext from consuming code. So in general I think this would be a pretty horrible design, but it would give the benefit of facilitating unit testing. Is this enough justification? Or is there a third way? I'd be very interested in hearing opinions.

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• Silverlight Line Graph with Gradient

  - by gav

  I have a series of points which I will turn into a line on a graph. What I want is to give the area under the graph a gradient fill. It would look somewhat similar to a Bloomberg graph like this; My question really has three parts; First, how should I fill only the area under the graph? Second, how do I fill that with a gradient? Finally, if I have multiple lines on the same graph any area under more than one line should have a greyscale gradient fill, how would you set this up? My biggest problem is deciding on the data structures to use, I could use many multiple sided shapes (One for each line/ data series) and then tell the brush to draw; Transparent if it's not in any shape The colour of one series if it's in one shape (Alpha relative to height to give grad) Black if it's in multiple shapes (Alpha relative to height to give grad) Then I'd draw the shapes' boundaries in white afterwards. Thanks, Gav

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• .NET chart Datamanipulator

  - by peter

  In .NET C#4.0 with the .NET Chart control I have this code to generate a pie chart: chart.Series[0].ChartType = SeriesChartType.Pie; foreach (Order order in orderCollection) { // If I set point.LegendText = order.UserName, .Group will erase it chart.Series[0].Points.AddXY(order.UserName, order.Total); } chart.DataManipulator.Sort(PointSortOrder.Ascending, "X", "Series1"); chart.DataManipulator.Group("SUM", 1, IntervalType.Months, "Series1"); This works well, it generates a pie chart with the top 10 users showing their total order sum. I would like to set the DataPoints' legendtext to the order.UserName property. The problem is, DataManipulator.Group overwrites the series DataPoints. So if I set the legendtext in the foreach loop, they will be erased after the Group call. And after the Group call, I don't see a way to retrieve the correct UserName for a DataPoint to set the legendtext. What is the best approach for this situation?

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• How do I get a title or some text to appear in a Silverlight mediaplayer when switching to FullScree

  - by Matt

  I am working on an ASP.NET website with VB.NET code-behind. I have a Silverlight mediaplayer object on one of the pages and the user may view that video in FullScreen mode. When changing to full-screen mode they are losing the title and chapter of the video series they are viewing. I have tried accessing properties and searched the web for examples on how I could put a title or some text over the player when in FullScreen mode to give the user an indication of where they are currently at while viewing each video. I am using OnClientMediaEnded to move through the videos after each video has ended so they are able to watch the whole series once in FullScreen mode. I am using a call to javascript in with this method to do that and want to know if there is any way to get a title or text up there and then change once the video switches to the next in the series? The controls on the player also go away when going into FullScreen mode so any help with that would be greatly appreciated as well. Thanks

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• Excel plugin: Finding a Chart's Source Data Number Format String

  - by Jack

  I'm currently working on a plugin for excel (using VB.net--not VBA) that will attempt (among other things) to recognize the format of the source data of a chart and configure the chart's series' number format strings appropriately. That is, yearly data should always be two numbers, monthly data should always be a 3-letter month followed by a 2-digit year, etc. The goal is to have a uniform representation across all charts for monthly data, annual data, daily data, etc. My question is this: how do I find the number format string for the cells (or any cell that is part of that series, as I will be assuming all cells that make up a particular series have the same format) that represent the source data for the chart? Note: I can assume that the chart will always point to a range of cells (not, for example, an array of data).

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• Learning rails and AJAX. How do I load a div via ajax and then toggle hiding/showing it?

  - by Kevin L.

  I'm doing my first Ruby on Rails project. I am working on a project where the user can add a new message. Then they can add updates to this message like a thread. I've got it all written and now I'm going back and applying some AJAX. I want to show just the main message when the page first loads. Then when I click a link I want an AJAX event to fire that populates a div with all the updates to the message. Then I want this same link to toggle hiding and showing the div. I've made a submit button to fire the ajax and get back the updates using form_remote_tag. I've also created a separate link to toggle the hiding using $(div_id).toggle();. But now I'm stuck on how to combine these two things into one all purpose link. Thanks.

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• Returning EF entities using WCF - Read only web service / public API

  - by alex

  I'm currently migrating an application from Linq-to-SQL & ASP.net Web Services (asmx) to Entity Framework and WCF. My question is, I have a bunch of POCO classes which i have xml mapping files for (for the linq to sql) I've replaced my linq to sql with an entity framework data model I've got an interface - something like IService - that has all the methods on it that i need my service to implement - for example: Product[] GetProductsByKeyword(string keyword); In the above case, Product is a POCO. I now have them as entities within my ef data model - i'm using .net 4, and could take advantage of poco support, but don't really see the need - This service is strictly read only. What's the best way of returning entities in my WCF service? I want it to support other client platforms, not just .net (so php guys could use it)

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• C# Hook Forms / Windows / Dialogs etc. (via HWND?) to Capture Video Buffer (D3D Device?)

  - by Drax

  I am looking to create a very simple C# application which runs Full-Screen in Direct3D, and is able to grab the Desktop 'scene', mapping each Window from the Desktop to a Textured Polygon in my D3D Scene... I'm hoping to create a simplistic "3D Desktop" type of application as an experiment, and I'm wondering if there is a specific method for doing something like the following: 1)Get a list of all the Windows open on the Desktop (List of HWNDs?). 2)Grab the X,Y position of each Window, as well as the Width and Height. 3)Grab the Rendered image of each Window (magic happens here). 4)Create a new Texture/Surface in D3D using the Width and Height of the Window(s), and apply the Image we grabbed as a Texture. Is there an efficient 'best practice' for acquiring the actual image(s) being rendered to the Desktop? Is there also a 'best practice' for "extending the desktop" to a virtual second, third, etc. "desktop" and being able to swap between them, including creating a unique instance of the task-bar for each virtual desktop. Thanks a million for any suggestions!

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• Grails - ElasticSearch - QueryParsingException[[index] No query registered for [query]]; with elasticSearchHelper; JSON via curl works fine though

  - by v1p

  I have been working on a Grails project, clubbed with ElasticSearch ( v 20.6 ), with a custom build of elasticsearch-grails-plugin(to support geo_point indexing : v.20.6) have been trying to do a filtered Search, while using script_fields (to calculate distance). Following is Closure & the generated JSON from the GXContentBuilder : Closure records = Domain.search(searchType:'dfs_query_and_fetch'){ query { filtered = { query = { if(queryTxt){ query_string(query: queryTxt) }else{ match_all {} } } filter = { geo_distance = { distance = "${userDistance}km" "location"{ lat = latlon[0]?:0.00 lon = latlon[1]?:0.00 } } } } } script_fields = { distance = { script = "doc['location'].arcDistanceInKm($latlon)" } } fields = ["_source"] } GXContentBuilder generated query JSON : { "query": { "filtered": { "query": { "match_all": {} }, "filter": { "geo_distance": { "distance": "5km", "location": { "lat": "37.752258", "lon": "-121.949886" } } } } }, "script_fields": { "distance": { "script": "doc['location'].arcDistanceInKm(37.752258, -121.949886)" } }, "fields": ["_source"] } The JSON query, using curl-way, works perfectly fine. But when I try to execute it from Groovy Code, I mean with this : elasticSearchHelper.withElasticSearch { Client client -> def response = client.search(request).actionGet() } It throws following error : Failed to execute phase [dfs], total failure; shardFailures {[1][index][3]: SearchParseException[[index][3]: from[0],size[60]: Parse Failure [Failed to parse source [{"from":0,"size":60,"query_binary":"eyJxdWVyeSI6eyJmaWx0ZXJlZCI6eyJxdWVyeSI6eyJtYXRjaF9hbGwiOnt9fSwiZmlsdGVyIjp7Imdlb19kaXN0YW5jZSI6eyJkaXN0YW5jZSI6IjVrbSIsImNvbXBhbnkuYWRkcmVzcy5sb2NhdGlvbiI6eyJsYXQiOiIzNy43NTIyNTgiLCJsb24iOiItMTIxLjk0OTg4NiJ9fX19fSwic2NyaXB0X2ZpZWxkcyI6eyJkaXN0YW5jZSI6eyJzY3JpcHQiOiJkb2NbJ2NvbXBhbnkuYWRkcmVzcy5sb2NhdGlvbiddLmFyY0Rpc3RhbmNlSW5LbSgzNy43NTIyNTgsIC0xMjEuOTQ5ODg2KSJ9fSwiZmllbGRzIjpbIl9zb3VyY2UiXX0=","explain":true}]]]; nested: QueryParsingException[[index] No query registered for [query]]; } The above Closure works if I only use filtered = { ... } script_fields = { ... } but it doesn't return the calculated distance. Anyone had any similar problem ? Thanks in advance :) It's possible that I might have been dim to point out the obvious here :P

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• How to add or remove a value inside a table cell on selection / de-selection of checkbox of that row, trying to submit the value via Jquery?

  - by Raul

  Here is the table: <%= form_tag '', :id => "costs" do %> <table class="table table-bordered" id="service_cost"> <% @services.each do |service| %> <tbody> <tr> <td><%= check_box_tag :open_service, {}, false, :class => 'checkable' %></td> <td><%= service.phone %></td> <td><%= service.internet %></td> <td></td> <td></td> <td></td> <td></td> <td></td> <td><%= service.house_keeping %> </td> <td>0.0 </td> <td><%= service.laundry %></td> <td><%= text_field_tag "service_cost", service.total, :class => "input-small" %></td> </tr> <% end %> when the form gets submitted, the javascript gets into action: $("#costs").submit(function(){ formData=$("#costs").serializeArray(); processFormData(formData) return false; }); This ensures form submission on selecting the checkbox: $('.checkable').live('change', function() { $(this).parents('form:first').submit(); }); But, what I am looking for is adding or removing a cell value based on checkbox selection/de-selection and submitting it, kindly suggest a way to do it.

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• Rails controller processing as HTML instead of XML

  - by Andy

  I've recently upgraded from Ruby 1.8.6 and Rails 2.3.4 to Ruby 1.9 and Rails 3.0.3. I have the following controller: class ChartController < ApplicationController before_filter :login_required respond_to :html, :xml def load_progress chart.add( :series, "Memorized", y_memorized ) chart.add( :series, "Learning", y_learning ) chart.add( :series, "Mins / Day", y_time ) chart.add( :user_data, :secondary_y_interval, time_axis_interval ) respond_to do |fmt| fmt.xml { render :xml => chart.to_xml } end # Also tried # respond_with chart end end However, when I call the 'load_progress method' I get the following: Started GET "/load_progress.xml" for 127.0.0. Processing by ChartController#load_progress as HTML Completed 406 Not Acceptable in 251ms I have also tried changing the respond_to block to respond_with chart But I get the same response. I've read all the new Rails documentation on the new respond_with format but I can't seem to elicit an XML response. Am desperately hoping someone has some ideas.

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• MySQL is there a Single Select to Query Various Unrelated Values from a database?

  - by zzapper

  I saw somewhere what seemed to be nested selects, one "master" select on the "outside" and a series of selects inside- is this possible? I'm not talking about joins as there is particular relation between the selects. I seem not to be explaining myself very well. I want to do a single query which will pull out a series of stats from various tables latest order, latest customer, largest order. Obviously I can do that with a series of selects. The example I saw was something like select ( select ... from tbl_1 where .., select ... from tbl_2 where .., select ... from tbl_3 where .., ... )

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• .NET DB Query Without Allocations?

  - by Michael Covelli

  I have been given the task of re-writing some libraries written in C# so that there are no allocations once startup is completed. I just got to one project that does some DB queries over an OdbcConnection every 30 seconds. I've always just used .ExecuteReader() which creates an OdbcDataReader. Is there any pattern (like the SocketAsyncEventArgs socket pattern) that lets you re-use your own OdbcDataReader? Or some other clever way to avoid allocations? I haven't bothered to learn LINQ since all the dbs at work are Oracle based and the last I checked, there was no official Linq To Oracle provider. But if there's a way to do this in Linq, I could use one of the third-party ones.

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• Sneak peek at next generation Three MiFi unit – Huawei E585

  - by Liam Westley

  Last Wednesday I was fortunate to be invited to a sneak preview of the next generation Three MiFi unit, the Huawei E585. Many thanks to all those who posted questions both via this blog or via @westleyl on Twitter. I think I made sure I asked every question posed to the MiFi product manager from Three UK, and so here's the answers you were after. What is a MiFi? For those who are wondering, a MiFi unit is a 3G broadband modem combined with a WiFi access point, providing 3G broadband data access to up to five devices simultaneously via standard WiFi connections. What is different? It appears the prime task of enhancing the MiFi was to improve the user experience and user interface, both in terms of the device hardware and within the management software to configure the device.  I think this was a very sensible decision as these areas had substantial room for improvement. Single button operation to switch on, enable WiFi and connect to 3G Improved OELD display (see below), replacing the multi coloured LEDs; including signal strength, SMS notifications, the number of connected clients and data usage Management is via a web based dashboard accessible from any web browser. This is a big win for those running Linux, Mac OS/X, iPad users and, for me, as I can now configure the device from Windows 7 64-bit Charging is via micro USB, the new standard for small USB devices; you cannot use your old charger for the new MiFi unit Automatic reconnection when regaining a signal Improved charging time, which should allow recharging of the device when in use Although subjective, the black and silver design does look more classy than the silver and white plastic of the original MiFi What is the same? Virtually the same size and weight The battery is the same unit as the original MiFi so you’ll have a handy spare if you upgrade Data plans remain the same as the current MiFi, so cheapest price for upgraders will be £49 pay as you go Still only works on 3G networks, with no fallback to GPRS or EDGE There is no specific upgrade path for existing three customers, either from dongle or from the original MiFi My opinion I think three have concentrated on the correct areas of usability and user experience rather than trying to add new whizz bang technology features which aren’t of interest to mainstream users. The one button operation and the improved device display will make it much easier to use when out and about. If the automatic reconnection proves reliable that will remove a major bugbear that I experienced the previous evening when travelling on the First Great Western line from Paddington to Didcot Parkway.  The signal was repeatedly lost as we sped through tunnels and cuttings, and without automatic reconnection is was a real pain to keep pressing the data button on the MiFi to re-establish my data connection. And finally, the web based dashboard will mean I no longer need to resort to my XP based netbook to configure the SSID and password. My everyday laptop runs Windows 7 64-bit which appears to confuse the older 3 WiFi manager which cannot locate the MiFi when connected. Links to other sites, and other images of the device Good first impressions from Ben Smith, http://thereallymobileproject.com/2010/06/3uk-announce-a-new-mifi-with-a-screen/ Also, a round up of other sneak preview posts, http://www.3mobilebuzz.com/2010/06/11/mifi-round-two-your-view/ Pictures Here is a comparison of the old MiFi device next to the new device, complete with OLED display and the Huawei logo now being a prominent feature on the front of the device. One of my fellow bloggers had a Linux based netbook, showing off the web based dashboard complete with Text messages panel to manage SMS. And finally, I never thought that my blog sub title would ever end up printed onto a cup cake, ... and here's some of the other cup cakes ...

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• C# 5 Async, Part 3: Preparing Existing code For Await

  - by Reed

  While the Visual Studio Async CTP provides a fantastic model for asynchronous programming, it requires code to be implemented in terms of Task and Task<T>.  The CTP adds support for Task-based asynchrony to the .NET Framework methods, and promises to have these implemented directly in the framework in the future.  However, existing code outside the framework will need to be converted to using the Task class prior to being usable via the CTP. Wrapping existing asynchronous code into a Task or Task<T> is, thankfully, fairly straightforward.  There are two main approaches to this. Code written using the Asynchronous Programming Model (APM) is very easy to convert to using Task<T>.  The TaskFactory class provides the tools to directly convert APM code into a method returning a Task<T>.  This is done via the FromAsync method.  This method takes the BeginOperation and EndOperation methods, as well as any parameters and state objects as arguments, and returns a Task<T> directly. For example, we could easily convert the WebRequest BeginGetResponse and EndGetResponse methods into a method which returns a Task<WebResponse> via: Task<WebResponse> task = Task.Factory .FromAsync<WebResponse>( request.BeginGetResponse, request.EndGetResponse, null); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Event-based Asynchronous Pattern (EAP) code can also be wrapped into a Task<T>, though this requires a bit more effort than the one line of code above.  This is handled via the TaskCompletionSource<T> class.  MSDN provides a detailed example of using this to wrap an EAP operation into a method returning Task<T>.  It demonstrates handling cancellation and exception handling as well as the basic operation of the asynchronous method itself. The basic form of this operation is typically: Task<YourResult> GetResultAsync() { var tcs = new TaskCompletionSource<YourResult>(); // Handle the event, and setup the task results... this.GetResultCompleted += (o,e) => { if (e.Error != null) tcs.TrySetException(e.Error); else if (e.Cancelled) tcs.TrySetCanceled(); else tcs.TrySetResult(e.Result); }; // Call the asynchronous method this.GetResult(); // Return the task from the TaskCompletionSource return tcs.Task; } We can easily use these methods to wrap our own code into a method that returns a Task<T>.  Existing libraries which cannot be edited can be extended via Extension methods.  The CTP uses this technique to add appropriate methods throughout the framework. The suggested naming for these methods is to define these methods as “Task<YourResult> YourClass.YourOperationAsync(…)”.  However, this naming often conflicts with the default naming of the EAP.  If this is the case, the CTP has standardized on using “Task<YourResult> YourClass.YourOperationTaskAsync(…)”. Once we’ve wrapped all of our existing code into operations that return Task<T>, we can begin investigating how the Async CTP can be used with our own code.

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• Ops Center 12c - Update - Provisioning Solaris on x86 Using a Card-Based NIC

  - by scottdickson

  Last week, I posted a blog describing how to use Ops Center to provision Solaris over the network via a NIC on a card rather than the built-in NIC.  Really, that was all about how to install Solaris on a SPARC system.  This week, we'll look at how to do the same thing for an x86-based server. Really, the overall process is exactly the same, at least for Solaris 11, with only minor updates. We will focus on Solaris 11 for this blog.  Once I verify that the same approach works for Solaris 10, I will provide another update. Booting Solaris 11 on x86 Just as before, in order to configure the server for network boot across a card-based NIC, it is necessary to declare the asset to associate the additional MACs with the server.  You likely will need to access the server console via the ILOM to figure out the MAC and to get a good idea of the network instance number.  The simplest way to find both of these is to start a network boot using the desired NIC and see where it appears in the list of network interfaces and what MAC is used when it tries to boot.  Go to the ILOM for the server.  Reset the server and start the console.  When the BIOS loads, select the boot menu, usually with Ctrl-P.  This will give you a menu of devices to boot from, including all of the NICs.  Select the NIC you want to boot from.  Its position in the list is a good indication of what network number Solaris will give the device. In this case, we want to boot from the 5th interface (GB_4, net4).  Pick it and start the boot processes.  When it starts to boot, you will see the MAC address for the interface Once you have the network instance and the MAC, go through the same process of declaring the asset as in the SPARC case.  This associates the additional network interface with the server.. Creating an OS Provisioning Plan The simplest way to do the boot via an alternate interface on an x86 system is to do a manual boot.  Update the OS provisioning profile as in the SPARC case to reflect the fact that we are booting from a different interface.  Update, in this case, the network boot device to be GB_4/net4, or the device corresponding to your network instance number.  Configure the profile to support manual network boot by checking the box for manual boot in the OS Provisioning profile. Booting the System Once you have created a profile and plan to support booting from the additional NIC, we are ready to install the server. Again, from the ILOM, reset the system and start the console.  When the BIOS loads, select boot from the Boot Menu as above.  Select the network interface from the list as before and start the boot process.  When the grub bootloader loads, the default boot image is the Solaris Text Installer.  On the grub menu, select Automated Installer and Ops Center takes over from there. Lessons The key lesson from all of this is that Ops Center is a valuable tool for provisioning servers whether they are connected via built-in network interfaces or via high-speed NICs on cards.  This is great news for modern datacenters using converged network infrastructures.  The process works for both SPARC and x86 Solaris installations.  And it's easy and repeatable.

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• Load balancing with multiple gateways

  - by ttouch

  I have to different ISPs, each on each own network. The main connects via ethernet and the secondary via wifi. The two networks have no relation at all. I just connect to them simultaneously. The reason I want to load balance between them is to achieve higher Internet speeds. Note: I have no advanced network hardware. Just my pc and the two routers that I have no access... main network: if: eth0 gw: 192.168.178.1 my ip: 192.168.178.95 speed: 400 kbit/s secondary network: if: wlan0 gw: 192.168.1.1 my ip: 192.168.1.95 speed: 300 kbit/s A diagram to explain the situation: http://i.imgur.com/NZdsv.jpg I'm on Arch Linux x64. I use netcfg to configure the interfaces Configs: # /etc/network.d/main CONNECTION='ethernet' DESCRIPTION='A basic static ethernet connection using iproute' INTERFACE='eth0' IP='static' ADDR='192.168.178.95' # /etc/network.d/second CONNECTION='wireless' DESCRIPTION='A simple WEP encrypted wireless connection' INTERFACE='wlan0' SECURITY='wep' ESSID='wifi_essid' KEY='the_password' IP="static" ADDR='192.168.1.95' And I use iptables to load balance, rules: #!/bin/bash /usr/sbin/ip route flush table ISP1 2>/dev/null /usr/sbin/ip rule del fwmark 101 table ISP1 2>/dev/null /usr/sbin/ip route add table ISP1 192.168.178.0/24 dev eth0 proto kernel scope link src 192.168.178.95 metric 202 /usr/sbin/ip route add table ISP1 default via 192.168.178.1 dev eth0 /usr/sbin/ip rule add fwmark 101 table ISP1 /usr/sbin/ip route flush table ISP2 2>/dev/null /usr/sbin/ip rule del fwmark 102 table ISP2 2>/dev/null /usr/sbin/ip route add table ISP2 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.95 metric 202 /usr/sbin/ip route add table ISP2 default via 192.168.1.1 dev wlan0 /usr/sbin/ip rule add fwmark 102 table ISP2 /usr/sbin/iptables -t mangle -F /usr/sbin/iptables -t mangle -X /usr/sbin/iptables -t mangle -N MARK-gw1 /usr/sbin/iptables -t mangle -A MARK-gw1 -m comment --comment 'send via 192.168.178.1' -j MARK --set-mark 101 /usr/sbin/iptables -t mangle -A MARK-gw1 -j CONNMARK --save-mark /usr/sbin/iptables -t mangle -A MARK-gw1 -j RETURN /usr/sbin/iptables -t mangle -N MARK-gw2 /usr/sbin/iptables -t mangle -A MARK-gw2 -m comment --comment 'send via 192.168.1.1' -j MARK --set-mark 102 /usr/sbin/iptables -t mangle -A MARK-gw2 -j CONNMARK --save-mark /usr/sbin/iptables -t mangle -A MARK-gw2 -j RETURN /usr/sbin/iptables -t mangle -A PREROUTING -j CONNMARK --restore-mark /usr/sbin/iptables -t mangle -A PREROUTING -m comment --comment "this stream is already marked; escape early" -m mark ! --mark 0 -j ACCEPT /usr/sbin/iptables -t mangle -A PREROUTING -m comment --comment 'prevent asynchronous routing' -i eth0 -m conntrack --ctstate NEW -j MARK-gw1 /usr/sbin/iptables -t mangle -A PREROUTING -m comment --comment 'prevent asynchronous routing' -i wlan0 -m conntrack --ctstate NEW -j MARK-gw2 /usr/sbin/iptables -t mangle -N DEF_POL /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'default balancing' -p tcp -m conntrack --ctstate ESTABLISHED,RELATED -j CONNMARK --restore-mark /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'default balancing' -p udp -m conntrack --ctstate ESTABLISHED,RELATED -j CONNMARK --restore-mark /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw1 tcp' -p tcp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 0 -j MARK-gw1 /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw1 tcp' -p tcp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 0 -j ACCEPT /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw2 tcp' -p tcp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 1 -j MARK-gw2 /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw2 tcp' -p tcp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 1 -j ACCEPT /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw1 udp' -p udp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 0 -j MARK-gw1 /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw1 udp' -p udp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 0 -j ACCEPT /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw2 udp' -p udp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 1 -j MARK-gw2 /usr/sbin/iptables -t mangle -A DEF_POL -m comment --comment 'balance gw2 udp' -p udp -m conntrack --ctstate NEW -m statistic --mode nth --every 2 --packet 1 -j ACCEPT /usr/sbin/iptables -t mangle -A PREROUTING -j DEF_POL /usr/sbin/iptables -t nat -A POSTROUTING -m comment --comment 'snat outbound eth0' -o eth0 -s 192.168.0.0/16 -m mark --mark 101 -j SNAT --to-source 192.168.178.95 /usr/sbin/iptables -t nat -A POSTROUTING -m comment --comment 'snat outbound wlan0' -o wlan0 -s 192.168.0.0/16 -m mark --mark 102 -j SNAT --to-source 192.168.1.95 /usr/sbin/ip route flush cache (this script was made by fukawi2, I don't know how to use iptables) but I have no Internet connection... output of iptables -t mangle -nvL Chain PREROUTING (policy ACCEPT 1254K packets, 1519M bytes) pkts bytes target prot opt in out source destination 1278K 1535M CONNMARK all -- * * 0.0.0.0/0 0.0.0.0/0 CONNMARK restore 21532 15M ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 /* this stream is already marked; escape early */ mark match ! 0x0 582 72579 MARK-gw1 all -- eth0 * 0.0.0.0/0 0.0.0.0/0 /* prevent asynchronous routing */ ctstate NEW 2376 696K MARK-gw2 all -- wlan0 * 0.0.0.0/0 0.0.0.0/0 /* prevent asynchronous routing */ ctstate NEW 1257K 1520M DEF_POL all -- * * 0.0.0.0/0 0.0.0.0/0 Chain INPUT (policy ACCEPT 1276K packets, 1535M bytes) pkts bytes target prot opt in out source destination Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 870K packets, 97M bytes) pkts bytes target prot opt in out source destination Chain POSTROUTING (policy ACCEPT 870K packets, 97M bytes) pkts bytes target prot opt in out source destination Chain DEF_POL (1 references) pkts bytes target prot opt in out source destination 1236K 1517M CONNMARK tcp -- * * 0.0.0.0/0 0.0.0.0/0 /* default balancing */ ctstate RELATED,ESTABLISHED CONNMARK restore 15163 2041K CONNMARK udp -- * * 0.0.0.0/0 0.0.0.0/0 /* default balancing */ ctstate RELATED,ESTABLISHED CONNMARK restore 555 33176 MARK-gw1 tcp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw1 tcp */ ctstate NEW statistic mode nth every 2 555 33176 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw1 tcp */ ctstate NEW statistic mode nth every 2 277 16516 MARK-gw2 tcp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw2 tcp */ ctstate NEW statistic mode nth every 2 packet 1 277 16516 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw2 tcp */ ctstate NEW statistic mode nth every 2 packet 1 1442 384K MARK-gw1 udp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw1 udp */ ctstate NEW statistic mode nth every 2 1442 384K ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw1 udp */ ctstate NEW statistic mode nth every 2 720 189K MARK-gw2 udp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw2 udp */ ctstate NEW statistic mode nth every 2 packet 1 720 189K ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 /* balance gw2 udp */ ctstate NEW statistic mode nth every 2 packet 1 Chain MARK-gw1 (3 references) pkts bytes target prot opt in out source destination 2579 490K MARK all -- * * 0.0.0.0/0 0.0.0.0/0 /* send via 192.168.178.1 */ MARK set 0x65 2579 490K CONNMARK all -- * * 0.0.0.0/0 0.0.0.0/0 CONNMARK save 2579 490K RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 Chain MARK-gw2 (3 references) pkts bytes target prot opt in out source destination 3373 901K MARK all -- * * 0.0.0.0/0 0.0.0.0/0 /* send via 192.168.1.1 */ MARK set 0x66 3373 901K CONNMARK all -- * * 0.0.0.0/0 0.0.0.0/0 CONNMARK save 3373 901K RETURN all -- * * 0.0.0.0/0 0.0.0.0/0

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• fluent nhibernate one to many mapping

  - by Sammy

  I am trying to figure out what I thought was just a simple one to many mapping using fluent Nhibernate. I hoping someone can point me to the right directory to achieve this one to many relations I have an articles table and a categories table Many Articles can only belong to one Category Now my Categores table has 4 Categories and Articles has one article associated with cateory1 here is my setup. using FluentNHibernate.Mapping; using System.Collections; using System.Collections.Generic; namespace FluentMapping { public class Article { public virtual int Id { get; private set; } public virtual string Title { get; set; } public virtual Category Category{get;set;} } public class Category { public virtual int Id { get; private set; } public virtual string Description { get; set; } public virtual IList<Article> Articles { get; set; } public Category() { Articles=new List<Article>(); } public virtual void AddArticle(Article article) { article.Category = this; Articles.Add(article); } public virtual void RemoveArticle(Article article) { Articles.Remove(article); } } public class ArticleMap:ClassMap<Article> { public ArticleMap() { Table("Articles"); Id(x => x.Id).GeneratedBy.Identity(); Map(x => x.Title); References(x => x.Category).Column("CategoryId").LazyLoad(); } public class CategoryMap:ClassMap<Category> { public CategoryMap() { Table("Categories"); Id(x => x.Id).GeneratedBy.Identity(); Map(x => x.Description); HasMany(x => x.Articles).KeyColumn("CategoryId").Fetch.Join(); } } } } if I run this test [Fact] public void Can_Get_Categories() { using (var session = SessionManager.Instance.Current) { using (var transaction = session.BeginTransaction()) { var categories = session.CreateCriteria(typeof(Category)) //.CreateCriteria("Articles").Add(NHibernate.Criterion.Restrictions.EqProperty("Category", "Id")) .AddOrder(Order.Asc("Description")) .List<Category>(); } } } I am getting 7 Categories due to Left outer join used by Nhibernate any idea what I am doing wrong in here? Thanks [Solution] After a couple of hours reading nhibernate docs I here is what I came up with var criteria = session.CreateCriteria(typeof (Category)); criteria.AddOrder(Order.Asc("Description")); criteria.SetResultTransformer(new DistinctRootEntityResultTransformer()); var cats1 = criteria.List<Category>(); Using Nhibernate linq provider var linq = session.Linq<Category>(); linq.QueryOptions.RegisterCustomAction(c => c.SetResultTransformer(new DistinctRootEntityResultTransformer())); var cats2 = linq.ToList();

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• SQL SERVER – Quick Look at SQL Server Configuration for Performance Indications

  - by pinaldave

  Earlier I wrote SQL SERVER – Beginning SQL Server: One Step at a Time – SQL Server Magazine. That was the first article on the series of my real world experience of Performance Tuning experience. I have written second part the same series over here. Read second part over here: Quick Look at SQL Server Configuration for Performance Indications. In this second part I talk about two types of my clients. 1) Those who want instant results 2) Those who want the right results It is really fun to work with both the clients. I talk about various configuration options which I look at when I try to give very early opinion about SQL Server Performance. There are various eight configurations, I give quick look and start talking about performance. Head over to original article over here: Quick Look at SQL Server Configuration for Performance Indications. Reference : Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Optimization, SQL Performance, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• April 30th Links: ASP.NET, ASP.NET MVC, Visual Studio 2010

  Here is the latest in my link-listing series. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] ASP.NET Data Web Control Enhancements in ASP.NET 4.0: Scott Mitchell has a good article that summarizes some of the nice improvements coming to the ASP.NET 4 data controls. Refreshing an ASP.NET AJAX UpdatePanel with JavaScript: Scott Mitchell has another nice article in his series...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• April 30th Links: ASP.NET, ASP.NET MVC, Visual Studio 2010

  Here is the latest in my link-listing series. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] ASP.NET Data Web Control Enhancements in ASP.NET 4.0: Scott Mitchell has a good article that summarizes some of the nice improvements coming to the ASP.NET 4 data controls. Refreshing an ASP.NET AJAX UpdatePanel with JavaScript: Scott Mitchell has another nice article in his series...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Dec 5th Links: ASP.NET, ASP.NET MVC, jQuery, Silverlight, Visual Studio

  - by ScottGu

  Here is the latest in my link-listing series.  Also check out my VS 2010 and .NET 4 series for another on-going blog series I’m working on. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] ASP.NET ASP.NET Code Samples Collection: J.D. Meier has a great post that provides a detailed round-up of ASP.NET code samples and tutorials from a wide variety of sources.  Lots of useful pointers. Slash your ASP.NET compile/load time without any hard work: Nice article that details a bunch of optimizations you can make to speed up ASP.NET project load and compile times. You might also want to read my previous blog post on this topic here. 10 Essential Tools for Building ASP.NET Websites: Great article by Stephen Walther on 10 great (and free) tools that enable you to more easily build great ASP.NET Websites.  Highly recommended reading. Optimize Images using the ASP.NET Sprite and Image Optimization Framework: A nice article by 4GuysFromRolla that discusses how to use the open-source ASP.NET Sprite and Image Optimization Framework (one of the tools recommended by Stephen in the previous article).  You can use this to significantly improve the load-time of your pages on the client. Formatting Dates, Times and Numbers in ASP.NET: Scott Mitchell has a great article that discusses formatting dates, times and numbers in ASP.NET.  A very useful link to bookmark.  Also check out James Michael’s DateTime is Packed with Goodies blog post for other DateTime tips. Examining ASP.NET’s Membership, Roles and Profile APIs (Part 18): Everything you could possibly want to known about ASP.NET’s built-in Membership, Roles and Profile APIs must surely be in this tutorial series. Part 18 covers how to store additional user info with Membership. ASP.NET with jQuery An Introduction to jQuery Templates: Stephen Walther has written an outstanding introduction and tutorial on the new jQuery Template plugin that the ASP.NET team has contributed to the jQuery project. Composition with jQuery Templates and jQuery Templates, Composite Rendering, and Remote Loading: Dave Ward has written two nice posts that talk about composition scenarios with jQuery Templates and some cool scenarios you can enable with them. Using jQuery and ASP.NET to Build a News Ticker: Scott Mitchell has a nice tutorial that demonstrates how to build a dynamically updated “news ticker” style UI with ASP.NET and jQuery. Checking All Checkboxes in a GridView using jQuery: Scott Mitchell has a nice post that covers how to use jQuery to enable a checkbox within a GridView’s header to automatically check/uncheck all checkboxes contained within rows of it. Using jQuery to POST Form Data to an ASP.NET AJAX Web Service: Rick Strahl has a nice post that discusses how to capture form variables and post them to an ASP.NET AJAX Web Service (.asmx). ASP.NET MVC ASP.NET MVC Diagnostics Using NuGet: Phil Haack has a nice post that demonstrates how to easily install a diagnostics page (using NuGet) that can help identify and diagnose common configuration issues within your apps. ASP.NET MVC 3 JsonValueProviderFactory: James Hughes has a nice post that discusses how to take advantage of the new JsonValueProviderFactory support built into ASP.NET MVC 3.  This makes it easy to post JSON payloads to MVC action methods. Practical jQuery Mobile with ASP.NET MVC: James Hughes has another nice post that discusses how to use the new jQuery Mobile library with ASP.NET MVC to build great mobile web applications. Credit Card Validator for ASP.NET MVC 3: Benjii Me has a nice post that demonstrates how to build a [CreditCard] validator attribute that can be used to easily validate credit card numbers are in the correct format with ASP.NET MVC. Silverlight Silverlight FireStarter Keynote and Sessions: A great blog post from John Papa that contains pointers and descriptions of all the great Silverlight content we published last week at the Silverlight FireStarter.  You can watch all of the talks online.  More details on my keynote and Silverlight 5 announcements can be found here. 31 Days of Windows Phone 7: 31 great tutorials on how to build Windows Phone 7 applications (using Silverlight).  Silverlight for Windows Phone Toolkit Update: David Anson has a nice post that discusses some of the additional controls provided with the Silverlight for Windows Phone Toolkit. Visual Studio JavaScript Editor Extensions: A nice (and free) Visual Studio plugin built by the web tools team that significantly improves the JavaScript intellisense support within Visual Studio. HTML5 Intellisense for Visual Studio: Gil has a blog post that discusses a new extension my team has posted to the Visual Studio Extension Gallery that adds HTML5 schema support to Visual Studio 2008 and 2010. Team Build + Web Deployment + Web Deploy + VS 2010 = Goodness: Visual blogs about how to enable a continuous deployment system with VS 2010, TFS 2010 and the Microsoft Web Deploy framework.  Visual Studio 2010 Emacs Emulation Extension and VIM Emulation Extension: Check out these two extensions if you are fond of Emacs and VIM key bindings and want to enable them within Visual Studio 2010. Hope this helps, Scott

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• Top 31 Favorite Features in Windows Server 2012

  - by KeithMayer

  Over the past month, my fellow IT Pro Technical Evangelists and I have authored a series of articles about our Top 31 Favorite Features in Windows Server 2012.  Now that our series is complete, I’m providing a clickable index below of all of the articles in the series for your convenience, just in case you perhaps missed any of them when they were first released.  Hope you enjoy our Favorite Features in Windows Server 2012! Top 31 Favorite Features in Windows Server 2012 The Cloud OS Platform by Kevin Remde Server Manager in Windows Server 2012 by Brian Lewis Feel the Power of PowerShell 3.0 by Matt Hester Live Migrate Your VMS in One Line of PowerShell by Keith Mayer Windows Server 2012 and Hyper-V Replica by Kevin Remde Right-size IT Budgets with “Storage Spaces” by Keith Mayer Yes, there is an “I” in Team – the NIC Team! by Kevin Remde Hyper-V Network Virtualization by Keith Mayer Get Happy over the FREE Hyper-V Server 2012 by Matt Hester Simplified BranchCache in Windows Server 2012 by Brian Lewis Getting Snippy with PowerShell 3.0 by Matt Hester How to Get Unbelievable Data Deduplication Results by Chris Henley of Veeam Simplified VDI Configuration and Management by Brian Lewis Taming the New Task Manager by Keith Mayer Improve File Server Resiliency with ReFS by Keith Mayer Simplified DirectAccess by Sumeeth Evans SMB 3.0 – The Glue in Windows Server 2012 by Matt Hester Continuously Available File Shares by Steven Murawski of Edgenet Server Core - Improved Taste, Less Filling, More Uptime by Keith Mayer Extend Your Hyper-V Virtual Switch by Kevin Remde To NIC or to Not NIC Hardware Requirements by Brian Lewis Simplified Licensing and Server Versions by Kevin Remde I Think, Therefore IPAM! by Kevin Remde Windows Server 2012 and the RSATs by Kevin Remde Top 3 New Tricks in the Active Directory Admin Center by Keith Mayer Dynamic Access Control by Brian Lewis Get the Gremlin out of Your Active Directory Virtualized Infrastructure by Matt Hester Scoping out the New DHCP Failover by Keith Mayer Gone in 8 Seconds – The New CHKDSK by Matt Hester New Remote Desktop Services (RDS) by Brian Lewis No Better Time Than Now to Choose Hyper-V by Matt Hester What’s Next? Keep Learning! Want to learn more about Windows Server 2012 and Hyper-V Server 2012?  Want to prepare for certification on Windows Server 2012? Do It: Join our Windows Server 2012 “Early Experts” Challenge online peer study group for FREE at http://earlyexperts.net. You’ll get FREE access to video-based lectures, structured study materials and hands-on lab activities to help you study and prepare!  Along the way, you’ll be part of an IT Pro community of over 1,000+ IT Pros that are all helping each other learn Windows Server 2012! What are Your Favorite Features? Do you have a Favorite Feature in Windows Server 2012 that we missed in our list above?  Feel free to share your favorites in the comments below! Keith Build Your Lab! Download Windows Server 2012 Don’t Have a Lab? Build Your Lab in the Cloud with Windows Azure Virtual Machines Want to Get Certified? Join our Windows Server 2012 "Early Experts" Study Group

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• Building a StackOverflow inspired Knowledge Exchange - Three Tiers to MVC – Hooray - A simple MVC ap

  In this article series we are going to discuss some architectural concepts.

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