.dwl File
Last Updated on 22/02/2019 by
I like the idea of clean easily read XML configuration in my Mule projects. Therefore I externalize DataWeave transformations, SQL quires, and other content. In this article, I will compare assets that Mule gives us to share such things in Mule 3 and Mule 4.
What is a DWL file? Files that contain the.dwl file extension are most commonly associated with the TurboCAD 2D and 3D design software applications. The DWL files that are used by these programs contain lock files of the TCW files that are being used by the application. Step 2: Then to recover deleted Autocad files, you can search for the ones with having a BAK or ac$ extension. You would need to figure out the right file with the help of either the file size or the partial name. Step 3: Copy this file on to the local server. You would not want to corrupt the temporary files in this process.
Mule 3
It is up to the component if we can load content from the resource or not. The most obvious example is DataWeave Transform Message component that allows that. We have such possibility for Database component using Template query.
As a result we got clear XML configuration as depicted below
.dwl File Type
It is much more readable, just by looking at XML we may infer what the code does on the high level. If we want to get know better transformation we have a path to the file, that we can examine.
Mule 4
First I was not aware of new functionality delivered with this Mule version. I had a case to rewrite the application to the new runtime. The application makes a couple of database calls.
When I drop Select operation on canvas I could not find any way to externalize my SQL statement. In Anypoint Studio I had a field called SQL Query Text only. Below you can find the XML snippet.
File placeholder syntax
Then I found out that Mule has introduced new syntax to load content from the files
${file::path-to-the-file/filename}
We have three parts. The first one, file::,implies that the engine should load the file specified after the double colon. Next, you write the file name and path to it. The address is relative to the resources folder.
As you may remember we use similar syntax to load properties like ${http.port}. Mule will try to resolve property http.port before project startup. If the property is missing the project won’t start. If the property is present, placeholder ${} will be replaced with the loaded value for example 8091.
File placeholder syntax is pretty the same. Mule will look for the file just before startup and won’t start if the file is missing. After the content will be loaded it will be put in place of the placeholder ${}.
Information
This functionality is not only dedicated to load DataWeave files. We may load any file that we want. However, when we would like to load DataWeave we need to remember to embrace our call within expression brackets #[]. Otherwise, we may get a text of our transformation :).
Examples
Static SQL statement
File: src/main/resources/sql/select-records.sql
Brief description: SQL statement from the file select-records.sql will be put between <db:sql> tags.
Choice logic
File: src/main/resources/dwl/rule.dwl
Content: sizeOf(payload) > 15
Brief description: content from the file rule.dwl will be put in expression attribute.
Advice
I guess that externalizing choice logic may be useful only if the expression is really complicated and long. For other cases do not use it in order to maintain greater readability.
Mock response
File: src/test/resources/test_data/system-response.dwl
Information
Why did I put a response in
Often I have a case that input should be a Java object, but I have its JSON representation. Therefore I use
Brief description: As you may see I enclosed file placeholder with expression brackets #[]. I used this because the content of the dwl file is a DataWeave script and it needs to be evaluated at runtime. If I would omit the expression brackets my mock component would return string having transformation text.
Composition
File: src/test/resources/test_data/record-to-compare.json
Brief description: I could provide an inline object to compare in equalTo function. However, I decided to externalize all examples. We may use file placeholder even in the middle of DataWeave as in the example above.
Warning
In Anypoint Studio 7.3.2 using file placeholder you may have errors like that one:
Description Resource Path Location Type
Invalid input ‘{‘, expected ~ (line 1, column 2):
For the time being, just ignore it, you will be able to run and build your project without any problem. That is an issue with Studio.
Summary
I think that file placeholder is really great feature that gives more flexibility than we have before in Mule 3. Now we may use this wherever we like even in the middle of DataWeave transformation. It makes XML configuration files more concise and readable. Small drawback, that I see currently, is a problem with Anypoint Studio that misinforms you.
Related posts:
Opening a DWL file is possible if you have the right program installed on your computer. It can be started by installing some of the most common programs related to DWL files. One of the most popular software associated with it is called AutoCAD Drawing Database File Locking Information.
AutoCAD is the name of the biggest and the most powerful computer design and drafting software in the whole world. This one was developed and published by Autodesk, which is the biggest design automation software company worldwide. This one is the main representative product of the company with about one thousand or even more training centers around the globe for the utilization of the software.
In order to open a DWL file with AutoCAD, the first thing that you will need to do is to get the AutoCAD. The main and the common issue of the opening DWL is caused by no program and can handle the DWL files. This kind of issue is able to be solved by downloading AutoCAD. The safest way to download it is by going to the official website of the developer and downloading the software using the provided links.
Do not forget to verify that you have the newest version of AutoCAD. If the issues with opening DWL files still appear even after installing AutoCAD, it is possible that you have the outdated version of this software. In this case, please check if there is a newer version of AutoCAD available on the official website of the developer. The issue also may happen due to the software creators updating their applications and adding the compatibility with the other newer file formats. Once again, please update to the latest version.
Once you have downloaded and installed the most recent version of the AutoCAD, make sure to set the app set as the default to open the DWL files.
If you want to select the first choice application on Windows, first of all, you will need to right click the DWL and select Open with option. Next, choose Choose another app > More apps. After that, choose Look for another app on this PC entry and using the file explorer choose the AutoCAD installation folder. remember to confirm by checking Always use this app to open the DWL files box and pressing the Ok button.
In order to select the first choice application on Mac OS, the first thing that should be done is to select Information from the drop down menu, accessed by clicking the file with DWL. Then, find the Open with by clicking its name. The next thing that you will have to do is to choose the software and save the settings by clicking Change all. Lastly, a This change will be applied to all files with KUX extension message should be displayed. Upon seeing it, please click the Continue button in order to confirm your choice.
If the DWL file cannot be opened or you get an error message, there are some other methods that you can try, aside from trying different programs like Autocad.
Alternative 1: Use the file type as hint
If you know the kind of file that you are working with, it might be used to figure out how to open it. Most DWL files are Misc Files. Please look for a program on your computer that opens this kind of file and see if it will open the DWL file.
For those who are not sure about the kind of file, you are able to find it within the DWL file itself. To be able to find this information, please follow these instructions.
In order to find the information about the type of file in Windows computer, the first thing that you will need to do is to right click the file icon. Then, choose Properties from the drop down menu. After that, find the file type listed under Type of File. If you are on Mac, first of all, you will have to right click on the file icon. The next thing that should be done is to choose More Info from the drop down menu. Lastly, look for the file type listed under Kind.
Alternative 2: Ask a developer
Dwl File To Dwg
For those who are still getting issues opening the DWL file, the developer of the software may be able to help you. In case you know which software program should open the file, you are recommended to reach out the developer who created the program. If you are not really sure about the one program to use, it is better for you too consult the list below to find the developers for the most common programs related to DWL files:
| Software | Developer |
| Textur Editor Compressed File | Windows Software |
| AutoCAD Drawing Database File Locking Information | Autodesk Inc. |
Alternative 3: Use a universal file viewer
Del File In Linux
If no one of the above methods works for you, a universal file viewer like File Magic might be able to help you to open the DWL file. universal file viewers are able to open a lot of different kinds of file, depending on the format. Please keep in mind that some files are incompatible and will only open in binary format.
Dwl File To Dwg
The other files that are related to the DWL files include .VRL, .SKP, .WRZ, .DW2, .WRL, .AI, .DC, .DWG, .MTX, .and .TCW. If you want to know more about them, here is the table:
| Extension | File Type Developer | File Category | File Type Description |
| .VRL | Unknown Developer | 3D Image Files | VRML World |
| .SKP | Trimble Inc. | 3D Image Files | SketchUp Document |
| .WRZ | Parallel Graphics | 3D Image Files | Compressed VRML World File |
| .DW2 | IMSI/Design, LLC | CAD Files | DesignCAD Drawing |
| .WRL | Unknown Developer | 3D Image Files | VRML World |
| .AI | Adobe Systems Incorporated | Vector Image Files | Adobe Illustrator File |
| .DC | IMSI/Design, LLC | CAD Files | DesignCAD Design File |
| .DWG | Autodesk. Inc. | CAD Files | AutoCAD Drawing Database File |
| .MTX | Yannick Delwiche | Plugin Files | MadTracker 2 Extension |
| .TCW | IMSI/Design, LLC | CAD files | TurboCAD Drawing File |
AUTHOR BIO
On my daily job, I am a software engineer, programmer & computer technician. My passion is assembling PC hardware, studying Operating System and all things related to computers technology. I also love to make short films for YouTube as a producer. More at about me…