binary-data

Say, if I want to store PDFs or ePub files using MongoDB's GridFS, is it possible to perform full-text searching on the data files? You can't currently do real full text search within mongo: http://www.mongodb.org/display/DOCS/Full+Text+Search+in+Mongo Feel free to vote for it here: https://jira.mongodb.org/browse/SERVER-380 Mongo is more of a general purpose scalable data store, and as of yet it doesn't have any full text search support. Depending on your use case, you could use the standard b-tree indexes with an array of all of the words in the text, but it won't do stemming or fuzzy

I am a beginner and I am having trouble in grasping binary files. When I write to a file in binary mode (in python), I just write normal text. There is nothing binary about it. I know every file on my computer is a binary file but I am having trouble distinguishing between files written in binary mode by me and files like audio, video etc files that show up as gibberish if I open them in a text editor. How are files that show up as gibberish created? Can you please give an example of a small file that is created like this, preferably in python? I have a feeling I am asking a really stupid

What is the cleanest way to parse binary data in clojure? I need to be able to read/write equally cleanly to a file or a socket. something like: (read-data source-of-data) => { :index 42 , :block-size 4 , data-size: 31415, :data (1 2 3 4 ...)} and the reverse for putting data back. It would be really great to somehow define the structure once and have the read and write functions use the same definition. Gloss makes it easy to define binary formats at the byte level for both reading and writing. (defcodec example-codec [:id :uint32 :msg-type (enum :byte {:a \A, :b \B}) :status (string :ascii

First of all, I am aware of this question: How do I load binary image data using Javascript and XMLHttpRequest? and specifically best answer therein, http://emilsblog.lerch.org/2009/07/javascript-hacks-using-xhr-to-load.html . So accessing binary data from Javascript using Firefox (and later versions of Chrome which actually seem to work too; don't know about Opera). So far so good. But I am still hoping to find a way to access binary data with a modern IE (ideally IE 6, but at least IE 7+), without using VB. It has been mentioned that XHR.messageBody would not work (if it contains zero bytes)

I need to access the internal binary representation of a loaded XML DOM... There are some dump functions , but I not see something like "binary buffer" (there are only "XML buffers"). My last objective is to compare byte-by-byte, the same document , before and after some black-box procedure , directly with their binary (current and cached) representations, without convertion (to XML-text representation)... So, the question, There are a binary representation (in-memory structures) in LibXML2, to compare dump with current representations? I need only to check if current and dumped DOMs are

This should be easy, but I can't get my head around it right now. I wanna send some bytes over a socket, like Socket s = new Socket("localhost", TCP_SERVER_PORT); DataInputStream is = new DataInputStream(new BufferedInputStream(s.getInputStream())); DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(s.getOutputStream())); for (int j=0; j<40; j++) { dos.writeByte(0); } That works, but now I dont want to writeByte to the Outputstream, but read from a binary file, then write it out. I know(?) I need a FileInputStream to read from, I just can't figure out hot to construct the

I want to read an image from a url and convert it into binary data. Please help me.. byte[] data = null; ByteArrayOutputStream bas = null; try { URL u = new URL( "http://www.eso.org/public/archives/images/screen/eso0844a.jpg"); HttpURLConnection con1 = (HttpURLConnection) u.openConnection(); con1.setAllowUserInteraction(true); con1.setRequestMethod("GET"); con1.connect(); InputStream is = con1.getInputStream(); BufferedImage imgToServe = null; if (is != null) { imgToServe = ImageIO.read(is); } bas = new ByteArrayOutputStream(); ImageIO.write(imgToServe, "jpg", bas); File f = new File("C:\\img