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Modifying of the Mwe2 workflow generated by Xtext programmatically

I'm running Mwe2 workflow programmatically and I need to add referencedResource for the Terminals.xtext to the GenerateYourDsl.mwe2 file in order to run this workflow successfully. Mentioned GenerateYourDsl.mwe2 file is generated by Xtext when I create new project - I didn't modify it.
Is it somehow possible to get object out of this workflow, access it in Java and add this one attribute to the language attribute of the component attribute of the workflow ?
Here's the workflow:
Workflow {
component = XtextGenerator {
configuration = {
project = StandardProjectConfig {
baseName = "org.example.yourdsl"
rootPath = rootPath
eclipsePlugin = {
enabled = true
}
createEclipseMetaData = true
}
code = {
encoding = "UTF-8"
lineDelimiter = "\n"
fileHeader = "/*\n * generated by Xtext \${version}\n */"
}
}
language = StandardLanguage {
name = "org.example.yourdsl.YourDsl"
fileExtensions = "yourdsl"
//following line needs to be added - in original generated workflow it is not
referencedResource = "platform:/resource/org.eclipse.xtext/org/eclipse/xtext/common/Terminals.xtext"
serializer = {
generateStub = false
}
validator = {
// composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
// Generates checks for #Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
generateDeprecationValidation = true
}
}
}
}
I'm generating projects programmatically (using CliProjectsCreator and WizardConfiguration) and need to run the workflow when the projects are generated in order to generate src, src-gen files etc. But as I'm trying to run it programmatically (not in Eclipse) and Terminals are used in my grammar, I'm getting this error:
XtextLinkingDiagnostic: null:1 Couldn't resolve reference to Grammar 'org.eclipse.xtext.common.Terminals'.
TransformationDiagnostic: null:36 Cannot create datatype WS. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)
TransformationDiagnostic: null:39 Cannot create datatype NAME_TERMINAL. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)
TransformationDiagnostic: null:42 Cannot create datatype VALUE_TERMINAL. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)

there should be no need to add the terminals grammar explicitely. It should be found on the classpath via org.eclipse.xtext.resource.ClassloaderClasspathUriResolver.resolve(Object, URI) if the workflow is called with a proper classpath.
have a look what the wizard creates when selecting maven: a call to the maven exec plugin calling into Mwe2Launcher main with the proper classpath

List all files in (sub)directories in Azure

I am developing an azure function using Java. I need to iterate all the files in the following folder
aDirectory/aSubdirectoryWithManyFiles/
There are many files in that path,:
aDirectory/aSubdirectoryWithManyFiles/file1
aDirectory/aSubdirectoryWithManyFiles/file2
aDirectory/aSubdirectoryWithManyFiles/file3
aDirectory/aSubdirectoryWithManyFiles/file4
aDirectory/aSubdirectoryWithManyFiles/file5
so I wrote the following code in order to get them all:
// myCloudBlobContainer is a CloudBlobContainer
// I expected to get all files thanks to the next row
Iterable<ListBlobItem> blobs = myCloudBlobContainer.listBlobs();
// The only blob found in the container is the directory itself
for (ListBlobItem blob : blobs) {
//log the current blob URI
if (blob instanceof CloudBlob) { // this never happens
CloudBlob cloudBlob = (CloudBlob) blob;
//make nice things with every found file
}
}
The only blob iterated in the for is the directory, noone of the expected files. so in logs i get only the following URI:
https://blablablabla.blob.core.windows.net/aDirectory/aSubdirectoryWithManyFiles/
What should I do in order to access every file?
And in case I would have more than one subdirectory, as in the following example?
aDirectory/aSubdirectoryWithManyFiles/files(1-5)
aDirectory/anotherSubdirectoryWithManyFiles/files(6-10)
Thanks in advance
Edit
In order to make methods testable, the project uses wrappers and interfaces instead of directly using directly a CloudBlobContainer; basically, the CloudBlobContainer is given by CloudBlobClient.getContainerReference("containername")
After the answer to this question, I changed teh code to the following
so I used listBlobs with parameters myCloudBlobContainer.listBlobs("aDirectory", true) and I wrote the following code in order to get them all:
// myCloudBlobClient is a CloudBlobClient
CloudBlobContainer myCloudBlobContainer = myCloudBlobClient.getContainerReference("containername")
// I expected to get all files thanks to the next row
Iterable<ListBlobItem> blobs = myCloudBlobContainer.listBlobs("aDirectory", true); // HERE THE CHANGE
// No blob found this time
for (ListBlobItem blob : blobs) { // NEVER IN THE FOR
//log the current blob URI
if (blob instanceof CloudBlob) {
CloudBlob cloudBlob = (CloudBlob) blob;
//make nice things with every found file
}
}
But this time, it doesn't go at all in the for...

I must say that the previous answer made me to waste time; the problem was in the fact that only one for is not enough to find files in folders. The first for finds the folders and subfolders, plus (maybe, i didn't check) files that are in the "root" (let's call it like that).
Having the folders, for each of them we have to cast as CloudBlobDirectory in order to see and iterate all contained files with another for.
Here the solution that works for me:
// myCloudBlobClient is a CloudBlobClient
CloudBlobContainer myCloudBlobContainer = myCloudBlobClient.getContainerReference("containername")
// I expected to get all files thanks to the next row
Iterable<ListBlobItem> blobs = myCloudBlobContainer.listBlobs();
// only directories here, another for needed to scan files
for (ListBlobItem blob : blobs) {
if (blob instanceof CloudBlobDirectory) {
CloudBlobDirectory directory = (CloudBlobDirectory)blob;
//next is in try/catch
Iterable<ListBlobItem> fileBlobs = directory.listBlobs();
for (ListBlobItem fileBlob : fileBlobs) {
if (fileBlob instanceof CloudBlob) {
CloudBlob cloudBlob = (CloudBlob) fileBlob;
//make nice things with every found file
}
}
} // else: may be we found a cloudBlob in root?
}
This helped me to find the right way:
https://social.msdn.microsoft.com/Forums/en-US/1cfdc91f-e588-4839-a878-9650339a0a06/list-all-blobs-in-c?forum=windowsazuredata

Try using the following override of listBlobs method:
listBlobs(String prefix, boolean useFlatBlobListing)
So your code would be:
Iterable<ListBlobItem> blobs = myCloudBlobContainer.listBlobs("aDirectory", true);
This will list all blobs inside "aDirectory" virtual folder in your blob container.

ERROR : Caused by: java.lang.IllegalArgumentException: Relationship null doesn't start with this part /ppt/slides/slide3.xml

I'm working with apache poi xslf to export ppt file.
First, I have a template set with 3 slides : title slide, summary slide, and third slide
I duplicate the 3rd slide (i have it as a template) in order to copy many data/graphics as I have in database.
So in order to do that :
XMLSlideShow slideShow = new XMLSlideShow(dlfile.getContentStream());
XSLFSlide[] slides = slideShow.getSlides();
XSLFSlide createdSlide = slideShow.createSlide(slides[2].getSlideLayout());
//get content from slide to createdslide
createdSlide.importContent(slides[2]);
//... add data to created slide
I have an error at line : createdSlide.importContent(slides[2]);
Caused by: java.lang.IllegalArgumentException: Relationship null doesn't start with this part /ppt/slides/slide3.xml
at org.apache.poi.openxml4j.opc.PackagePart.getRelatedPart(PackagePart.java:468)
at org.apache.poi.xslf.usermodel.XSLFSheet.importBlip(XSLFSheet.java:521)
at org.apache.poi.xslf.usermodel.XSLFSlide.importContent(XSLFSlide.java:235)
P.S : this code works just fine with another tempalte.
I need to use different templates based on user selection. (templates are stored in db as i'm using liferay).
I've searched for hours, but in vain!
I don't even understand what the error means.
Any links/help would appreciated.

The error comes from org.apache.poi.openxml4j.opc.PackagePart.getRelatedPart code line 468:
throw new IllegalArgumentException("Relationship " + rel + " doesn't start with this part " + _partName);.
The error states that rel is null. So org.apache.poi.xslf.usermodel.XSLFSheet.importBlip in code line 521:
blipPart = packagePart.getRelatedPart(blipRel);
had handed over blipRelas null. So org.apache.poi.xslf.usermodel.XSLFSlide.importContent in code line 235:
String relId = importBlip(blipId, src.getPackagePart());
had handed over blipId as null.
This is pretty clear if one of the pictures in your template in Slide 3 is not an embedded picture but a linked picture. The code:
#Override
public XSLFSlide importContent(XSLFSheet src){
super.importContent(src);
XSLFBackground bgShape = getBackground();
if(bgShape != null) {
CTBackground bg = (CTBackground)bgShape.getXmlObject();
if(bg.isSetBgPr() && bg.getBgPr().isSetBlipFill()){
CTBlip blip = bg.getBgPr().getBlipFill().getBlip();
String blipId = blip.getEmbed();
String relId = importBlip(blipId, src.getPackagePart());
blip.setEmbed(relId);
}
}
return this;
}
consideres only embedded blip data.
From your code lines I can see that you are using apache poi version 3.9. But as far as I see in current versions this had not changed until now. Only embedded bilp data will be considered.
So have a look at your template and make sure that all pictures are embedded and not linked.

Why would this cause a StringIndexOutOfBoundsException? Android

I am working on a small file manager to help me learn the basics of android, but I keep running into an error. WHenever I have a lot of items in the folder, it crashes and I get a message similar to this one,
java.lang.StringIndexOutOfBoundsException: length=26; regionStart=23; regionLength=-2
What could be causing this? The line it points to is line 2:
1.)String mimeType = "";
2.)mimeType = URLConnection.guessContentTypeFromName(f.getName());

You are missing some key lines we need to see, such as where f (a File? a URI?) is defined. However when I have seen this problem before it was caused by a URI with no Protocol set.
Making sure you have an extension and using MimeTypeMap#getMimeTypeFromExtension() is probably a good bet too

This error happens to me when the URL has a fragment, which can be identified by a # followed by some value. (For more on URL fragments, see https://www.w3.org/Addressing/URL/4_2_Fragments.html)
The URL fragment is not helpful in guessing content type, and since it is problematic in this case, it should be removed before calling URLConnection.guessContentTypeFromName().
Here is a simple function that returns a URL without the fragment:
private fun getSafeUrlForGuessing(url: String): String {
return try {
val uri = Uri.parse(url)
if (uri.scheme?.startsWith("http") == true) {
uri.buildUpon()
.fragment(null) // URLs with fragments cause URLConnection.guessContentTypeFromName() to throw
.build()
.toString()
} else {
url
}
} catch (error: Throwable) {
url
}
}

Getting info from PsiMethod in Intellij IDEA plugin

I'm writing Intellij IDEA plugin for my project, and I've faced a problem - I cannot get some ingo about method (PsiMethod) from my code.
First, I want to know is this method public.
And second, I want to get fully-qualified names of the parameter classes. Currently I'm doing it like this:
method.getReturnTypeNoResolve().getInternalCanonicalText()
But it doesn't provide full name (with package name) for the standard JVM classes like String and List.
UPDATE First problem solved with the following code:
PsiUtil.getAccessLevel(method.getModifierList()) == PsiUtil.ACCESS_LEVEL_PUBLIC
But I still cannot get fully qualified class name
UPDATE 2 Here is the full listing of my code:
Project currentProject = DataKeys.PROJECT.getData(e.getDataContext());
PsiClass abstractComponentClass = JavaPsiFacade.getInstance(currentProject).findClass("com.mjolnirr.lib.component.AbstractComponent", GlobalSearchScope.allScope(currentProject));
TreeClassChooser result = TreeClassChooserFactory
.getInstance(currentProject)
.createInheritanceClassChooser("Choose the class to generate manifest",
GlobalSearchScope.projectScope(currentProject),
abstractComponentClass,
false,
false,
null);
result.showDialog();
PsiClass classToGenerate = result.getSelected();
List<ManifestMethod> methods = new ArrayList<ManifestMethod>();
for (PsiMethod method : classToGenerate.getAllMethods()) {
// If this method is inherited from the Object class we don't need it
if (isComponentInitialize(method)) {
continue;
}
List<ManifestParameter> parameters = new ArrayList<ManifestParameter>();
for (PsiParameter param : method.getParameterList().getParameters()) {
parameters.add(new ManifestParameter(param.getType().getCanonicalText().replaceAll("\\<.*?\\>", "")));
}
if (method.getReturnType() != null) {
ManifestMethod manifestMethod = new ManifestMethod(method.getName(),
method.getReturnTypeNoResolve().getInternalCanonicalText().replaceAll("\\<.*?\\>", ""),
parameters);
if (!methods.contains(manifestMethod) && isPublic(method)) {
System.out.println("->" + method.getReturnType().getCanonicalText());
methods.add(manifestMethod);
}
}
}

Solved - my test IDEA instance has wrong Java SDK connected.