Currently we are using a WPF application for creation/editing of List&Label Templates, but we are considering to move to the WebDesigner. Because we use project includes we need to use the repository mode.
I've been trying to import our existing templates, but I run into some issues regarding the RepositoryItemDescriptor. To create a RepositoryItem object you have to give a Descriptor in the constructor, but I cannot find any info regarding how you get it from the generated .lst file.
The data that we have at our disposal are:
TemplateType: List or Form
TemplateData: content of the .lst file (byte[])
IsMainTemplate: bool, is a "project include" or not
File name: name of the .lst file
The RepositoryItem constructor requires: string internalID, string descriptor, string type, DateTime lastModificationUTC.
What I have now is:
public class TemplateBaseModel : RepositoryItem
{
// Properties
// we have our own Ids and modification date, override RepositoryItem properties
public new InternalID => $"repository://{{{Id}}}";
public DateTime LastModificationUTC => ModifiedOn;
public TemplateBaseModel() : base($"repository://{{{Guid.NewGuid()}}}", /* ?? */, RepositoryItemType.ProjectList.Value, DateTime.Now) { }
public TemplateBaseModel(string internalID, string descriptor, string type, DateTime lastModificationUTC) : base(internalID, descriptor, type, lastModificationUTC) { }
}
In the documentation I can only find what it is (internal metadata that is serialized into a string, and can be edited with the class RepositoryItemDescriptor), but not how it's created or how you can get it, and if I try to debug the example I get (in the CreateOrUpdate() method)#2#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, which doesn't help either.
Any idea how to properly create a RepositoryItem from a .lst file? or how to create/get the descriptor?
You should try and use the class RepositoryImportUtil from the combit.ListLabel23.Repository namespace. This helper class does all the hard work for you. Given an IRepositoryinterface and the lst file in place, the required code would be something like
IRepository listLabelRepository = <yourRepository>;
using (ListLabel LL = new ListLabel())
{
LL.FileRepository = listLabelRepository;
using (RepositoryImportUtil importUtil = new RepositoryImportUtil(listLabelRepository))
{
importUtil.ImportProjectFileWithDependencies(LL,
#"<PathToRootProject>");
}
}
If this method is not what your require, the helper class has a couple of other methods as well to help you importing existing projects.
Related
I try to extend my MyDSLProposalProvider from an external Eclipse RCP Project. I created an extension point schema which requires a class property which extends my ProposalProvider. In the new project I extend the class an overrode some methods justs to give me some output so I can see that the external method is called. But this is currently not happening. Is there anything I have to consider?
Currently the hirachy looks like:
MyDSLProposalProvider extends AbstractMyDSLProposalProvider
ExternalProposalProvider extends MyDSLProposalProvider
I rewrote a Method generated in the AbstractMyDSLProposalProvider but when its triggered the predefined Method in the AbstractMyDSLProposalProvider is called and not my new implementation.
public class ExternalMyDSLProposalPovider extends MyDSLProposalProvider
{
#Override
public void completeComponent_Name(EObject model, Assignment
assignment, ContentAssistContext context,
ICompletionProposalAcceptor acceptor) {
System.err.println("extern");
if(model instanceof Component)
{
createProposal("foo", "foo", context, acceptor);
}
super.completeComponent_Name(model, assignment, context, acceptor);
}
}
This is the class in the external Eclipse Project.
Thanks for the help.
When you declare an extension point using a schema that you have defined Eclipse puts that declaration in the extension point registry. That is all that is does, you must then write code to make uses of those declarations.
You read the extension point registry using something like:
IExtensionRegistry extRegistry = Platform.getExtensionRegistry();
IExtensionPoint extPoint = extRegistry.getExtensionPoint("your extension point id");
IConfigurationElement [] elements = extPoint.getConfigurationElements();
elements is now an array of the declarations in the various plugins using the extension point.
IConfigurationElement has various methods to get the values of the attributes of the declaration.
If you have defined a class in one of the attributes you can create an instance of the class using:
IConfigurationElement element = .... a config element
Object obj = element.createExecutableExtension("attribute name");
In your case the result should be your ExternalMyDSLProposalPovider.
You will then need to hook this object up with whatever is doing to proposals.
With the help of other Stackoverflow users, I have gone some way to my solution but have come to a halt.
I would like to build some generic classes in an app_code .cshtml file eg one would be to return property values from documents from a function eg
public static string docFieldValue(int docID,string strPropertyName){
var umbracoHelper = new Umbraco.Web.UmbracoHelper(Umbraco.Web.UmbracoContext.Current);
var strValue = "";
try{
strValue = umbracoHelper.Content(docID).GetPropertyValue(strPropertyName).ToString();
}
catch(Exception ex){
strValue = "Error - invalid document field name (" + strPropertyName + ")";
}
var nContent = new HtmlString(strValue);
return nContent;
}
This works ok for returning one field (ie property) from a document. However, if I wanted to return 2 or more, ideally, I would store the returned node in a variable or class and then be able to fetch property values repeatedly without having to look up the document with each call
ie without calling
umbracoHelper.Content(docID).GetPropertyValue(strPropertyName).ToString();
with different strPropertyName parameters each time, as I assume that will mean multiple reads from the database).
I tried to build a class, with its properties to hold the returned node
using Umbraco.Web;
using Umbraco.Core.Models;
...
public static Umbraco.Web.UmbracoHelper umbracoHelper = new Umbraco.Web.UmbracoHelper(Umbraco.Web.UmbracoContext.Current);
public static IPublishedContent docNode;
...
docNode = umbracoHelper.Content(docID);
but this crashed the code. Can I store the node in a property on a class, and if so, what type is it?
First of all, using a .cshtml file is unnecessary, use a .cs file instead :-) CSHTML files are for Razor code and HTML and stuff, CS files are for "pure" C#. That might also explain why your last idea crashes.
Second of all, UmbracoHelper uses Umbracos own cache, which means that the database is NOT touched with every request. I would at least define the umbracoHelper object outside of the method (so it gets reused every time the method is called instead of reinitialised).
Also, beware that property values can contain all kinds of other object types than strings.
EDIT
This is an example of the entire class file - my example namespace is Umbraco7 and my example class name is Helpers:
using Umbraco.Web;
namespace Umbraco7
{
public class Helpers
{
private static UmbracoHelper umbracoHelper = new UmbracoHelper(UmbracoContext.Current);
private static dynamic docNode;
public static string docFieldValue(int docID, string strPropertyName)
{
docNode = umbracoHelper.Content(docID);
return docNode.GetPropertyValue(strPropertyName).ToString();
}
}
}
This is an example how the function is called inside a View (.cshtml file inside Views folder):
#Helpers.docFieldValue(1076, "introduction")
Helpers, again, is the class name I chose. It can be "anything" you want. I've just tested this and it works.
I suggest you read up on general ASP.NET MVC and Razor development, since this is not very Umbraco specific.
I am generating some files by using different Acceleo templates defined into a *.mtl file.
At the top op these files I need to write something like:
#-----------------------------------------------------------------------------
# Project automatically generated by XXX at (add timestamp here)
#-----------------------------------------------------------------------------
How could I generate this timestamp dynamically each time I generate the files?
Thanks!
Edit: I solved this as described below.
Just after the module declaration, add query declarations:
[module generate('platform:/resource/qt48_model/qt48_xmlschema.xsd') ]
[comment get timestamp/]
[query public getCurrentTime(c : OclAny) : String =
invoke('org.eclipse.acceleo.qt_test_api.generator.common.GenerationSupport', 'getCurrentTime()', Sequence{}) /]
Then, create a class called GenerationSupport and add a method called getCurrentTime():
package org.eclipse.acceleo.qt_test_api.generator.common;
import java.sql.Timestamp;
public class GenerationSupport {
public String getCurrentTime(){
java.util.Date date = new java.util.Date();
Timestamp ts = new Timestamp(date.getTime());
return ts.toString();
}}
try something like this:
[query public getCurrentTime(traceabilityContext : OclAny):
String = invoke('yourPackage.YourJavaClass', 'getCurrentTime()', Sequence{})
/]
And in your Java class, declare a method with this functionality:
public String getCurrentTime(){
return customDate;
}
Where "customDate" should be a String in your custom format:
new Date().toString(), use of formats mm/dd/yyyy or whatever you want.
Please, don't forget to add the package which contains this Java class to export packages in MANIFEST.MF
Good luck!
You'll have to use what's called a "service".
It's basically just a public method in a class that will return the date as a String, formatted the way you want.
Lookt at the acceleo tutorials to see how services are used, everything is there.
I am implementing a custom IBsonSerializer with the official MongoDB driver (C#). I am in the situation where I must serialize and deserialize a Guid.
If I implement the Serialize method as follow, it works:
public void Serialize(BsonWriter bsonWriter, Type nominalType, object value, IBsonSerializationOptions options)
{
BsonBinaryData data = new BsonBinaryData(value, GuidRepresentation.CSharpLegacy);
bsonWriter.WriteBinaryData(data);
}
However I don't want the Guid representation to be CSharpLegacy, I want to use the standard representation. But if I change the Guid representation in that code, I get the following error:
MongoDB.Bson.BsonSerializationException: The GuidRepresentation for the writer is CSharpLegacy, which requires the subType argument to be UuidLegacy, not UuidStandard.
How do I serialize a Guid value using the standard representation?
Old question but in case someone finds it on google like I did...
Do this once:
BsonDefaults.GuidRepresentation = GuidRepresentation.Standard;
For example, in a Web Application/Web API, your Global.asax.cs file is best place to add it once
public class WebApiApplication : System.Web.HttpApplication
{
protected void Application_Start()
{
BsonDefaults.GuidRepresentation = GuidRepresentation.Standard;
//Other code...below
}
}
If you don't want to modify the global setting BsonDefaults.GuidRepresentation (and you shouldn't, because modifying globals is a bad pattern), you can specify the setting when you create your collection:
IMongoDatabase db = ???;
string collectionName = ???;
var collectionSettings = new MongoCollectionSettings {
GuidRepresentation = GuidRepresentation.Standard
};
var collection = db.GetCollection<BsonDocument>(collectionName, collectionSettings);
Then any GUIDs written to the collection will be in the standard format.
Note that when you read records from the database, you will get a System.FormatException if the GUID format in the database is different from the format in your collection settings.
It looks like what's happening is when you are not explicitly passing the GuidRepresentation to BsonBinaryData constructor, it defaults to passing GuidRepresentation.Unspecified and that ultimately maps to GuidRepresentation.Legacy (see this line in the source)
So you need to explicitly pass the guidRepresentation as a third argument to BsonBinaryData set to GuidRepresentation.Standard.
edit: As was later pointed out, you can set BsonDefaults.GuidRepresentation = GuidRepresentation.Standard if that's what you always want to use.
A sqoop query generates a java file that contains a class that contains the code to get access in mapreduce to the columns data for each row. (the Sqoop import was done in text without the --as-sequencefile option, and with 1 line per record and commas between the columns)
But how do we actually use it?
I found a public method parse() in this class that takes Text as an input and populates all the members of the class , so to practice I modified the wordcount application to convert a line of text from the TextInputFormat in the mapper into an instnace of the class generated by sqoop. But that causes an "unreported exception.com.cloudera.sqoop.lib.RecordParser.ParseError; must be caught or declared to be thrown" when I call the parse() method.
Can it be done this way or is a custom InputFormat necessary to populate the class with the data from each record ?
Ok this seems obvious once you find out but as a java beginner this can take time.
First configure your project:
just add the sqoop generated .java file in your source folder.
I use eclipse to import it in my class source folder.
Then just make sure you configured your project's java build path correctly:
Add the following jar files in the project's properties/java build path/libraries/add external jar:
(for hadoop cdh4+) :
/usr/lib/hadoop/hadoop-common.jar
/usr/lib/hadoop-[version]-mapreduce/hadoop-core.jar
/usr/lib/sqoop/sqoop-[sqoop-version]-cdh[cdh-version].jar
Then adapt your mapreduce source code:
First configure it:
public int run(String [] args) throws exception
{
Job job = new Job(getConf());
job.setJarByClass(YourClass.class);
job.setMapperClass(SqoopImportMap.class);
job.setReducerClass(SqoopImprtReduce.class);
FileInputFormat.addInputPath((job,"hdfs_path_to_your_sqoop_imported_file"));
FileOutputFormat.setOutputPath((job,"hdfs_output_path"));
// I simply use text as output for the mapper but it can be any class you designed
// as long as you implement it as a Writable
job.setMapOutputKeyClass(Text.Class);
job.setMapOutputValueClass(Text.Class);
job.setOutputKeyClass(Text.Class);
job.setOutputValueClass(Text.Class);
...
Now configure your mapper class.
Let's assume your sqoop imported java file is called Sqimp.java:
and the table you imported had the following columns: id, name, age
your mapper class should look like this:
public static class SqoopImportMap
extends Mapper<LongWritable, Text, Text, Text>
{
public void map(LongWritable k, Text v, Context context)
{
Sqimp s = new Sqimp();
try
{
// this is where the code generated by sqoop is used.
// it automatically casts one line of the imported data into an instance of the generated class,
// to let you access the data inside the columns easily
s.parse(v);
}
catch(ParseError pe) {// do something if there is an error.}
try
{
// now the imported data is accessible:
// e.g
if (s.age>30)
{
// submit the selected data to the mapper's output as a key value pair.
context.write(new Text(s.age),new Text(s.id));
}
}
catch(Exception ex)
{//do something about the error}
}
}