Hi I don't have much experience in C or YOLO so does anyone know what edits in demo.c I should make to be able to run a shell command whenever a specific object is detected?
Many thanks
Maybe you have some experience with .NET/C#.
You need install this two nuget packages in your project after this you can copy my exampel code. If yolo detect a motorbike a external process are starting. If you need some other objects you can use your own yolo model instead of YoloV2TinyVocData.
Install-Package Alturos.Yolo
Install-Package Alturos.YoloV2TinyVocData
Example code
var configurationDetector = new ConfigurationDetector();
var config = configurationDetector.Detect();
using (var yoloWrapper = new YoloWrapper(config))
{
var items = yoloWrapper.Detect(#"image.jpg");
foreach(var item in items)
{
if (item.Type.Equals("Motorbike", StringComparison.OrdinalIgnoreCase))
{
Process.Start("yourcommand.exe");
}
}
}
Related
This example no longer seems to work in .NET Core 2.0, it now serializes using an XmlDiffGram. Any easy way to get it working? Do I need to do this whole thing?
As of 25/04/2018. Download latest version of Newtonsoft. I upgraded to 11.0.2. It now works with ASP Core 2. Datasets get converted to JSON.
It's looks like the Netonsoft crew have written a specific converters for DataSet & DataTables which should point you in the right direction.
Quick update:
It looks like these are not quite in the latest nuget release yet, but coming soon.
when they are released, you'll need to change the line in the example to something like.
string json = JsonConvert.SerializeObject(dataSet, Formatting.Indented, new JsonSerializerSettings { Converters = new[] { new Newtonsoft.Json.Converters.DataSetConverter() } });
Well this works...
var xml = new XDocument();
using (var writer = xml.CreateWriter())
{
dataSet.WriteXml(writer);
writer.Flush();
}
return Json(xml);
I am currently working in a WiX/Burn Managed Bootstrapper Application and cannot figure out how to get the local path for a payload (MSI).
I let the user select which applications they want to install in my custom UI, and I want to not show applications for which the MSI is missing. I also need to see information in the MSI's database.
I know I can determine missing payloads by handling "ResolveSource" but that doesn't happen until right before the application in installed.
I deserialize the BootstrapperApplicationData.xml file first thing so I have information about which MSIs MIGHT be installed, but it still doesn't help me determine the source of the MSIs.
Does anyone know how to determine the local path to a payload?
EDIT: Here is an example for how I reference all the installers:
<MsiPackage Id="AppName"
SourceFile="$(var.ProjectName.TargetDir)ProjectName.msi"
Name="MSI\ProjectName.msi"
Compressed="no"/>
In the GetLastUsedSourceFolder function in cache.cpp, you can see that the engine gets the source folder from the WixBundleLastUsedSource variable, and the parent directory of the WixBundleOriginalSource variable if WixBundleLastUsedSource isn't set.
You can use this along with the Name attribute of the WixPayloadProperties element in the BootstrapperApplicationData.xml file to predetermine where the engine will look for a payload. Note that the engine will actually look in the cache first.
The MSI files are embedded into the bundle .exe and aren't extracted from the bundle until right before the application is installed, which corresponds to when the ResolveSource event fires. However, if you really want to get this information, you can programatically extract the MSI files yourself and inspect them using the WiX DTF library (wix.dll in the /bin folder of your WiX install).
using Microsoft.Tools.WindowsInstallerXml;
private void ExtractEmbeddedMsiInstallers()
{
var tmpFolder = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
var bundlePath = Engine.StringVariables["WixBundleOriginalSource"];
Unbinder unbinder = null;
try
{
unbinder = new Unbinder();
//The next line will extract the MSIs into the tmpFolder in a subfolder named "AttachedContainer"
unbinder.Unbind(bundlePath, OutputType.Bundle, tmpFolder);
}
finally
{
if (null != unbinder)
unbinder.DeleteTempFiles();
}
}
You also mentioned needing to inspect data in the MSI database. Here's a sample of how to do that:
using (var database = new InstallPackage(msiFilePath, DatabaseOpenMode.Transact) { WorkingDirectory = _someTempFolder })
{
if (database.Tables.Contains("CustomAction"))
{
using (View view = database.OpenView("SELECT `Action`, `Type`, `Source`, `Target` FROM `CustomAction`"))
{
view.Execute();
foreach (Record rowRecord in view)
using (rowRecord)
{
var actionName = rowRecord.GetString(1);
var actionType = rowRecord.GetInteger(2);
var binaryName = rowRecord.GetString(3);
var methodName = rowRecord.GetString(4);
//Do something with the values
}
}
}
}
I'm using autofac and the interfaces are correctly resolved but this code fails with "No connection could be made because the target machine actively refused it 127.0.0.1:8081"
using (var store = GetService<IDocumentStore>())
{
using (var session = store.OpenSession())
{
session.Store(new Entry { Author = "bob", Comment = "My son says this", EntryId = Guid.NewGuid(), EntryTime = DateTime.Now, Quote = "I hate you dad." });
session.SaveChanges();
}
}
Here is the registration
builder.Register<IDocumentStore>(c =>
{
var store = new DocumentStore { Url = "http://localhost:8081" };
store.Initialize();
return store;
}).SingleInstance();
When I navigate to http://localhost:8081 I do get the silverlight management UI. Although I'm running a Windows VM and vmware and Silverlight5 don't play together. That's another issue entirely. Anyways does anyone see what I'm doing wrong here or what I should be doing differently? Thanks for any code, tips, or tricks.
On a side note, can I enter some dummy records from a command line interface? Any docs or examples of how I can do that?
Thanks All.
Just curious, are you switching RavenDB to listen on 8081? The default is 8080. If you're getting the management studio to come up, I suspect you are.
I'm not too familiar with autofac but, it looks like you're wrapping your singleton DocumentStore in a using statement.
Try:
using (var session = GetService<IDocumentStore>().OpenSession())
{
}
As far as dummy records go, the management studio will ask you if you want to generate some dummy data if your DB is empty. If you can't get silverlight to work in the VM, I'm not sure if there's another automated way to do it.
Perhaps using smuggler:
http://ravendb.net/docs/server/administration/export-import
But you'd have to find something to import.
I've been trying to read a pre-built file with Car Maintenance tips, there's one in each line of my "Tips.txt" file. I've tried to follow around 4 or 5 different approaches but It's not working, it compiles but I get an exception. Here's what I've got:
using (IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication())
{
using (StreamReader sr = new StreamReader(store.OpenFile("Tips.txt", FileMode.Open, FileAccess.Read)))
{
string line;
while ((line = sr.ReadLine()) != null)
{
(App.Current as App).MyTips.Insert(new DoubleNode(line));
}
}
}
I'm getting this "Operation not permitted on IsolatedStorageFileStream", from the info inside the 2nd using statement. I tried with the build action of my "Tips.txt" set to resource, and content, yet I get the same result.
Thanks in advance.
Since you've added it to your project directory, you can't read it using Isolated Storage methods. There are various ways you can load the file. One way would be to set the text file's build type to Resource, then read it in as a stream:
//Replace 'MyProject' with the name of your XAP/Project
Stream txtStream = Application.GetResourceStream(new Uri("/MyProject;component/myTextFile.txt",
UriKind.Relative)).Stream;
using(StreamReader sr = new StreamReader(txtStream))
{
//your code
}
How would I go about extracting the IL code for classes that are generated at runtime by reflection so I can save it to disk? If at all possible. I don't have control of the piece of code that generates these classes.
Eventually, I would like to load this IL code from disk into another assembly.
I know I could serialise/deserialise classes but I wish to use purely IL code. I'm not fussed with the security implications.
Running Mono 2.10.1
Or better yet, use Mono.Cecil.
It will allow you to get at the individual instructions, even manipulating them and disassembling them (with the mono decompiler addition).
Note that the decompiler is a work in progress (last time I checked it did not fully support lambda expressions and Visual Basic exception blocks), but you can have pretty decompiled output in C# pretty easily as far as you don't hit these boundary conditions. Also, work has progressed since.
Mono Cecil in general let's you write the IL to a new assembly, as well, which you can then subsequently load into your appdomain if you like to play with bleeding edge.
Update I came round to trying this. Unfortunately I think I found what problem you run into. It turns out there is seems to be no way to get at the IL bytes for a generated type unless the assembly happened to get written out somewhere you can load it from.
I assumed you could just get the bits via reflection (since the classes support the required methods), however the related methods just raise an exception The invoked member is not supported in a dynamic module. on invocation. You can try this with the code below, but in short I suppose it means that it ain't gonna happen unless you want to f*ck with Marshal::GetFunctionPointerForDelegate(). You'd have to binary dump the instructions and manually disassemble them as IL opcodes. There be dragons.
Code snippet:
using System;
using System.Linq;
using Mono.Cecil;
using Mono.Cecil.Cil;
using System.Reflection.Emit;
using System.Reflection;
namespace REFLECT
{
class Program
{
private static Type EmitType()
{
var dyn = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("Emitted"), AssemblyBuilderAccess.RunAndSave);
var mod = dyn.DefineDynamicModule("Emitted", "Emitted.dll");
var typ = mod.DefineType("EmittedNS.EmittedType", System.Reflection.TypeAttributes.Public);
var mth = typ.DefineMethod("SuperSecretEncryption", System.Reflection.MethodAttributes.Public | System.Reflection.MethodAttributes.Static, typeof(String), new [] {typeof(String)});
var il = mth.GetILGenerator();
il.EmitWriteLine("Emit was here");
il.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
il.Emit(System.Reflection.Emit.OpCodes.Ret);
var result = typ.CreateType();
dyn.Save("Emitted.dll");
return result;
}
private static Type TestEmit()
{
var result = EmitType();
var instance = Activator.CreateInstance(result);
var encrypted = instance.GetType().GetMethod("SuperSecretEncryption").Invoke(null, new [] { "Hello world" });
Console.WriteLine(encrypted); // This works happily, print "Emit was here" first
return result;
}
public static void Main (string[] args)
{
Type emitted = TestEmit();
// CRASH HERE: even if the assembly was actually for SaveAndRun _and_ it
// has actually been saved, there seems to be no way to get at the image
// directly:
var ass = AssemblyFactory.GetAssembly(emitted.Assembly.GetFiles(false)[0]);
// the rest was intended as mockup on how to isolate the interesting bits
// but I didn't get much chance to test that :)
var types = ass.Modules.Cast<ModuleDefinition>().SelectMany(m => m.Types.Cast<TypeDefinition>()).ToList();
var typ = types.FirstOrDefault(t => t.Name == emitted.Name);
var operands = typ.Methods.Cast<MethodDefinition>()
.SelectMany(m => m.Body.Instructions.Cast<Instruction>())
.Select(i => i.Operand);
var requiredTypes = operands.OfType<TypeReference>()
.Concat(operands.OfType<MethodReference>().Select(mr => mr.DeclaringType))
.Select(tr => tr.Resolve()).OfType<TypeDefinition>()
.Distinct();
var requiredAssemblies = requiredTypes
.Select(tr => tr.Module).OfType<ModuleDefinition>()
.Select(md => md.Assembly.Name as AssemblyNameReference);
foreach (var t in types.Except(requiredTypes))
ass.MainModule.Types.Remove(t);
foreach (var unused in ass.MainModule
.AssemblyReferences.Cast<AssemblyNameReference>().ToList()
.Except(requiredAssemblies))
ass.MainModule.AssemblyReferences.Remove(unused);
AssemblyFactory.SaveAssembly(ass, "/tmp/TestCecil.dll");
}
}
}
If all you want is the IL for your User class, you already have it. It's in the dll that you compiled it to.
From your other assembly, you can load the dll with the User class dynamically and use it through reflection.
UPDATE:
If what you have is a dynamic class created with Reflection.Emit, you have an AssemblyBuilder that you can use to save it to disk.
If your dynamic type was instead created with Mono.Cecil, you have an AssemblyDefinition that you can save to disk with myAssemblyDefinition.Write("MyAssembly.dll") (in Mono.Cecil 0.9).