What I would like to be able to do is take an .avdl file and parse it into python. I would like to make use of the information from within python.
According to the documentation, Apache's python package does not handle .avdl files. I need to use their avro-tools to convert the .avdl file into something it does know how to parse.
According to the documentation at https://avro.apache.org/docs/current/idl.html, I can convert a .avdl file into a .avpr file with the following command:
java -jar avro-tools.jar idl src/test/idl/input/namespaces.avdl /tmp/namespaces.avpr
I ran through my .avdl file through Avro-tools, and it produced an .avpr file.
What is unclear is how I can use the python package to interpret this data. I tried something simple...
schema = avro.schema.parse(open("my.avpr", "rb").read())
but that generates the error:
SchemaParseException: No "type" property:
I believe that avro.schema.parse is designed to parse .avsc files (?). However, it is unclear how I can use avro-tools to convert my .avdl into .avsc. Is that possible?
I am guessing there are many pieces I am missing and do not quite understand (yet) what the purpose of all of these files are.
It does appear that an .avpr is a JSON file (?) so I can just read and interpret it myself, but I was hoping that there would be a python package that would assist me in navigating the data.
Can anyone provide some insights into this? Thank you.
The answer is to use the idl2schemata command with avro-tools.jar, providing it with an output directory to which it can write the .avsc files. The .avsc files can then be read AVRO python package.
For example:
java -jar avro-tools.jar idl2schemata src/test/idl/input/namespaces.avdl /tmp/
I am searching google to learn how to use wireshark along with ns-3, but I am confused. As I see it needs specific file to work. How do I make this specific file with ns-3?
Your question is still unclear. I assume you need the following lines of code.
PointToPointHelper p2p;
p2p.EnablePcapAll("filename"); //filename without .pcap extention
It will create a file in the main directory of ns3. You can analyze this file using tcpdump or wireshark.
I am new to flume-NG. I want my source to send some unique xml files to the channel one by one. The channel will validate the xml files and send the validity(either true or false) and the xml file to th custom sink. This sink will write the valid files and invalid files to different directories in HDFS. I am not sure which source to use. Please help.
None of the current ones will fit your use case. The SpoolingDirectorySource is line-oriented so XML files will confuse it and not arrive in one piece.
I suggest you write a custom source for your application.
Read the contents of an local XML file in an application and get the whole contents of xml file into a string for blackberry application?
To create a string from a local file see this blackberry forum entry: Open txt file from mediacard
Assuming you want to use the data within the XML, I would recommend using a XML parser rather than string manipulation. The following links should get you going with XML parsers and explain some of the trade-offs:
Blackberry How To - Use the XML Parser
Parsing XML in J2ME
Add XML parsing to your J2ME applications
If, however, you have any say about the format used JSON might be a good alternative. JSON is easy for machines to parse (thus using fewer resources) and it's human readable.
I have found using a SAXParser and subclassing DefaultHandler has worked well. Allows to go element by element.
Is there an easy way to create Word documents (.docx) in a Ruby application? Actually, in my case it's a Rails application served from a Linux server.
A gem similar to Prawn but for DOCX instead of PDF would be great!
As has been noted, there don't appear to be any libraries to manipulate Open XML documents in Ruby, but OpenXML Developer has complete documentation on the format of Open XML documents.
If what you want is to send a copy of a standard document (like a form letter) customized for each user, it should be fairly simple given that a DOCX is a ZIP file that contains various parts in a directory hierarchy. Have a DOCX "template" that contains all the parts and tree structure that you want to send to all users (with no real content), then simply create new (or modify existing) pieces that contain the user-specific content you want and inject it into the ZIP (DOCX file) before sending it to the user.
For example: You could have document-template.xml that contains Dear [USER-PLACEHOLDER]:. When a user requests the document, you replace [USER-PLACEHOLDER] with the user's name, then add the resulting document.xml to the your-template.docx ZIP file (which would contain all the images and other parts you want in the Word document) and send that resulting document to the user.
Note that if you rename a .docx file to .zip it is trivial to explore the structure and format of the parts inside. You can remove or replace images or other parts very easily with any ZIP manipulation tools or programmatically with code.
Generating a brand new Word document with completely custom content from raw XML would be very difficult without access to an API to make the job easier. If you really need to do that, you might consider installing Mono, then use VB.NET, C# or IronRuby to create your Open XML documents using the Open XML Format SDK 1.0. Since you would just be using the Microsoft.Office.DocumentFormat.OpenXml.Packaging Namespace to manipulate Open XML documents, it should work okay in Mono, which seems to support everything the SDK requires.
Maybe this gem is interesting for you.
https://github.com/trade-informatics/caracal/
It like prawn but with docx.
You can use Apache POI. It is written in Java, but integrates with Ruby as an extension
This is an old question but there's a new answer. If you'd like to turn an HTML doc into a Word (docx) doc, just use the 'htmltoword' gem:
https://github.com/karnov/htmltoword
I'm not sure why there was answer creep and everyone started posting templating solutions, but this answers the OP's question. Just like Prawn, except Word instead of PDF.
UPDATE:
There's also pandoc and an API wrapper for pandoc called docverter. Both have slightly complicated installs since pandoc is a haskell library.
I know if you serve a HTML document as a word document with the .doc extension, it will open in Word just fine. Just don't do anything fancy.
Edit: Here is an example using classic ASP. http://www.aspdev.org/asp/asp-export-word/
Using a technique very similar to that suggested by Grant Wagner I have created a Ruby html to word gem that should allow you to easily output Word docx files from your ruby app. You can check it out at http://github.com/nickfrandsen/htmltoword - Simply pass it a html string and it will create a corresponding word docx file.
def show
respond_to do |format|
format.docx do
file = Htmltoword::Document.create params[:docx_html_source], "file_name.docx"
send_file file.path, :disposition => "attachment"
end
end
end
Hope you find it useful. If you have any problems with it feel free to open a github issue.
Disclosure: I'm the leader of the docxtemplater project.
I know you're looking for a ruby solution, but because all other solutions only tell you how to do it globally, without giving you a library that does exactly what you want, here's a solution based on JS or NodeJS (works in both)
DocxTemplater Library
Demo of the library
You can also use it in the commandline:
npm install docxtemplater -g
docxtemplater <configFile>
----config.docxFile: The input file in docx format
----config.outputFile: The outputfile of the document
This is a way Doccy (doccyapp.com) has a api that does just that which you can use. Supports docx, odt and pages and converts to PDF as well if you like
Further to Grant's answer, you can also send Word a "Flat OPC" file, which is essentially the docx unzipped and concatenated to create a single xml file. This way, you can replace [USER-PLACEHOLDER] in one file and be done with it (ie no zipping or unzipping).
If anyone is still looking at this, this post explains how to use an XML data source. This works nicely for me.
http://seroter.wordpress.com/2009/12/23/populating-word-2007-templates-through-open-xml/
Check out this github repo: https://github.com/jawspeak/ruby-docx-templater
It allows you to create a document from a word template.
If you're running on Windows, of course, it's a matter of WIN32OLE and some pain with the Word COM objects.
Chances are that your serving from a *nix environment, though. Word 2007 uses the "Microsoft Office Open XML" format (*.docx) which can be opened using the appropriate compatibility pack from Microsoft.
Some of the more recent Office apps (2002/XP and 2003 at least) had their own XML formats which may also be useable.
I'm not aware of any Ruby tools to make the process easier, sadly.
If it can be made acceptable, I think I'd be inclined to go down the renamed-html file route. I just saved a document as HTML from WordXP, renamed it to a .doc and opened it without problem.
I encountered the same problem. Unfortunately I could not manipulate the xml because my clients should themselves to fill in templates. And to do this is not always possible (for example, office for mac does not allow this).
As a solution to this problem, I made a simple gem, which can be used as an rtf document template with embedded ruby: https://github.com/eicca/rtf-templater
I tested it and it works ok for filling reports and documents. However, formatting badly displays for complex loops and conditions.