Greater Heights Ltd

.net Software Consultants

Grumpy DJ?

I am a big fan of React an even bigger fan of Redux. I also love the Solid Steel Podcast quality mixes by different DJs every week, what's not to love. Well apparently getting your mix picked by Solid Steel for their weekly podcast is not to love. Follow the link and take a look, every mix has a picture of the chosen DJ, most seem somewhat unhappy or are they? How to tell…….

By over engineering it that how! So I built this little web application using React, Redux, Typescript and the amazing Microsoft Emotion Api.

What does it do? Well using the Mixcloud API it fetches all the Solid Steel Podcast metadata and sends each picture to the Emotion API for analysis.  Lets have a look at the results.

 

As we can see HNNY seems rather neutral,

2016-06-03

 

Whereas Jungle, ah well this isn't really helping my case.

2016-06-03 (1)

 

Lets take a look at a few more

Fracture? not looking too cheery.

2016-06-03 (2)

 

Rob Da Bank? not unhappy.

2016-06-03 (3)

 

JD Twich? now that's better, looking quite moody, but neutral apparently.

2016-06-03 (5)

 

Paeleh? neutral apparently but I detect a hint of a smile creeping in.

2016-06-03 (4)

 

So what have we proved here?

  1. react, redux , typescript, webpack are amazing tools for building web apps
  2. Some DJs don't seem very happy about getting mixes onto Solid Steel.
  3. The Microsoft Emotion API is very clever.
  4. I may have too much time on my hands.

Well the codes all here up on my Git repository. You will need to get your own Microsoft Emotion API key to test it but that's pretty quick and easy to do, just follow the link and click the ‘Get Started’ button. When you have your generated key search the code for the string [your key here]] and replace with your key.

Kendo bootstrap grid example

Just posted a little example demonstrating using a Kendo UI grid with Web API 2 ODATA controllers and a custom bootstrap modal popup instead of the default kendo popup.

Code available from my git repository. I will be posting a full article about this code soon.

Charity Commission

The charity commission secured our services to complete the development of a new web service to allow the querying of information detailing UK charities. The web service searched the charity commission database for structured information and several document repositories for annual returns and audit reports. This information and links to found documents were returned as xml.

SOCA

SOCA secured our services to develop crime intelligence systems.

Our team created the secure data exchange service to automatically manage the transfer of data between private, restricted and confidential networks. The solution was a configurable windows service making heavy use of Spring.net to inject the required functionality. The system was high availability operationally significant.

Our team was pivotal in designing a system for the cross matching of data from multiple data sources. These data sources came in many formats and structures such as csv, xls, and databases. This system allowed data to be stored in a common format and was exposed to the existing federated search and cross matching services.

We were responsible for developing a number of services to extract data from intelligence systems, encrypting and making ready for transmission to partner agencies. A number of these systems held operationally significant data and required the design and implementation of activity monitoring systems. These ensured teams were kept informed of queries against data involving live operations.

UKHO

We provided .net consultancy for the UKHO’s first SOA implementation. This system is a re-write of an existing client server chart production system for Electronic Navigational Charts (ENC). When complete it will act as reference implementation for the UKHO.

The development used WCF for all service implementation and WF as an interim composition environment.

Lead .net consultants for production of metadata systems management and integration tools. Our team created a number of ETL tools allowing the UKHO to collate and verify metadata for approximately 20,000 paper and digital publications on a weekly basis.

We designed a metadata repository to store all product information including prices, status and geographic limits. This system was fed by a number of WF 4.0 activities exposed as WCF service endpoints. The data was presented to users via a MVC 3 web client.

The team also created a number of WCF services to expose data from legacy Oracle, Ingres and Sql Server applications to the metadata store.

To ensure data quality before publishing catalogue data the data team produced a WPF application to compare and analyse the xml catalogues. This graphical tool uses a rules engine developed using MEF to apply comparisons between catalogue data from different weeks. These rules ensured that navigational products don’t jump hemispheres, that prices don’t drop to zero and edition numbers increment the right way.

Remove magic strings from Breeze.js queries with T4 and typescript.

If you are familiar with Breeze.js you will be familiar with the following style of statement.
var manager = new breeze.EntityManager('api/northwind');

var query = new breeze.EntityQuery()
    .from("Employees");
manager.executeQuery(query).then(function(data){
    ko.applyBindings(data);
}).fail(function(e) {
    alert(e);  
});

There are a number of problems with this statement.

  1. How do we know that we have an entity set called “Employees”.
  2. What if the developer spells it wrong?
  3. How do we keep this in line with our EntityFramework entities?
To solve both these problems I have written a T4 template to generate the typescript module that exports a class for each entity in our EntityFramework context. I cannot claim the contents of the template are entirely my work the code for the FindClasses function comes from this stackoverflow post.
<#@ template language="C#" debug="false" hostspecific="true" #>
<#@ output extension=".ts" #>
<#@ assembly name="System" #>
<#@ assembly name="System.Core" #>
<#@ assembly name="System.Data.Entity" #>
<#@ assembly name="EnvDTE" #>
<#@ import namespace="EnvDTE" #>
<#@ import namespace="System" #>
<#@ import namespace="System.Collections" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.Linq" #>
<#@ import namespace="System.Reflection" #>

<#
var targetNamespace = "GreaterHeights.Test.Domain";

    IServiceProvider serviceProvider = (IServiceProvider)this.Host;
    DTE dte = serviceProvider.GetService(typeof(DTE)) as DTE;  
    var project = dte.ActiveDocument.ProjectItem.ContainingProject;
#>
module greaterheights.constants{

<#


 foreach (CodeClass c in FindClasses(project, targetNamespace, "")) { #>
    export class <#= c.Name #>Constants {

       public static <#= c.Name #>Entity : string = '<#= c.Name #>'; 
<#     var properties = c.Members.OfType<EnvDTE.CodeProperty>()
           .Where(p => p.Access.HasFlag(vsCMAccess.vsCMAccessPublic))
           .OrderBy(p => p.Name);
       foreach (var prop in properties) { 
#>
       public static <#= prop.Name #> : string = '<#= prop.Name #>'; 
<#     } #>

   }

<# } #>

}

<#+ List<CodeClass> FindClasses(Project project, string ns, string className) {
        List<CodeClass> result = new List<CodeClass>();
        FindClasses(project.CodeModel.CodeElements, className, ns, result, false);
        return result;
    }

    void FindClasses(CodeElements elements, string className, string searchNamespace, List<CodeClass> result, bool isNamespaceOk) {
        if (elements == null) return;
        foreach (CodeElement element in elements) {
            if (element is CodeNamespace) {
                CodeNamespace ns = element as CodeNamespace;
                if (ns != null) {
                    if (ns.FullName == searchNamespace)
                        FindClasses(ns.Members, className, searchNamespace, result, true);
                    else
                        FindClasses(ns.Members, className, searchNamespace, result, false);
                }
            } else if (element is CodeClass && isNamespaceOk) {
                CodeClass c = element as CodeClass;
                if (c != null) {
                    if (c.FullName.Contains(className))
                        result.Add(c);

                    FindClasses(c.Members, className, searchNamespace, result, true);
                }
            }
        }
    }

    #>
Simply add this template to the scripts directory of your web project, replace the targetNamespace with the namespace of your EntityFramework project and select the “Run Custom Tool” context menu for the template. The generated typescript file should look something similar to this.
module greaterheights.constants{

    export class Employee {

       public static EmployeeEntity : string = 'Employees'; 
       public static EmailAddress : string = 'EmailAddress'; 
       public static Forename : string = 'Forename'; 
       public static Id : string = 'Id'; 
       public static Surname : string = 'Surname'; 

   }
}
Now simply reference the file in your Typescript breeze data service and you can create the same query without magic strings.
var manager = new breeze.EntityManager('api/northwind');

var query = new breeze.EntityQuery()
    .from(greaterheights.constants.EmployeeEntity);
manager.executeQuery(query).then(function(data){
    ko.applyBindings(data);
}).fail(function(e) {
    alert(e);  
});

Capita

Design and delivery of a C# testing suite for the legacy UNISYS Magistrates court system.

Design and re-engineering of the existing Magistrates court gateway application.

This resulted in significant improvements to the time taken to transform legacy court data to and from XML and transmission times to mainframe court systems.

Analysis, verification, design and implementation of fixes to reported incidents with the NSPIS case and custody systems.