storage

My application uses a plist as data storage, and I would like to know, what is the maximum storage capacity of a plist file in iOS? A plist can be of arbitrary length . Apple, however, only recommend plists having a maximum size of a couple hundred KB : "For situations where you need to store small amounts of persistent data—say less than a few hundred kilobytes—property lists offer a uniform and convenient means of organizing, storing, and accessing the data." For data which is more memory intensive, they recommend the following: "In some situations, the property-list architecture may prove

I have a couple objects, Location, in my app stored in an ArrayList and use parcelable to move these between activities. The code for the object looks like this: public class Location implements Parcelable{ private double latitude, longitude; private int sensors = 1; private boolean day; private int cloudiness; /* Måste ha samma ordning som writeToParcel för att kunna återskapa objektet. */ public Location(Parcel in){ this.latitude = in.readDouble(); this.longitude = in.readDouble(); this.sensors = in.readInt(); } public Location(double latitude, double longitude){ super(); this.latitude =

I want to read/write OTG USB storage from device. For that I have written the code below but it shows only the SD card. HashSet<String> out = new HashSet<String>(); String reg = "(?i).*vold.*(vfat|ntfs|exfat|fat32|ext3|ext4).*rw.*"; String s = ""; try { final Process process = new ProcessBuilder().command("mount") .redirectErrorStream(true).start(); process.waitFor(); final InputStream is = process.getInputStream(); final byte[] buffer = new byte[1024]; while (is.read(buffer) != -1) { s = s + new String(buffer); } is.close(); } catch (final Exception e) { e.printStackTrace(); } // parse output

I'm creating an app that connects online to a server to collect information. To save money from renting server space from a big corp, I was wondering if any of these free services (Dropbox, Google Drive, Microsoft Skydrive, Amazon Cloud, etc.) could be potentially used as server space? I pretty much want a "space" or "cloud" where people can connect to to collect data. Example: I have a weather app, and there is files on my server and I update the files according to the weather. I would like them to be able to open the app and connect to my server to gather the weather data saved on my server.

I'm developing a web application in which users are allowed to upload pictures, the system will then generate thumbs for them. My problem relies on the fact that EJBs can be distributed on several servers and thus are not allowed to handle files directly. I could store the images in the databases but I was hoping to store them as files in one of the servers. How can I do this? Is there any way to centralize the storage of files? Or any approach to deal with files in Java EE with EJBs? Currently, I'm storing my files in a database. So I have centralized access and I don't need a dedicated file

I am using Python and I have a JSON file in which I would like to update a value related to a given key. That is, I have the my_file.json containing the following data {"a": "1", "b": "2", "c": "3"} and I would like to just change the value related to the b key from 2 to 9 so that the updated file look as like: {"a": "1", "b": "9", "c": "3"} How can I make that? I tried the following but without success (the changes are not saved to the file): with open('my_file.json', 'r+') as f: json_data = json.load(f) json_data['b'] = "9" f.close() You did not save the changed data at all. You have to

I am looking for if cassandra has limitations of node hardware spec like what could be the max storage per node if there is any such limitation. I intend to use couple of nodes with 48TB storage (2TB X 24 hard drives 7200rpm) per node with some good dual xeon processor. I have looked up for such limitations if exists any but didn't find any material about this issue. And guys why there is so much less buzz about cassandra recently while its getting mature and its up 0.8 version while most of articles/blogs are related to 0.6v only. Cassandra distributes its data by row, so the only hard