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Search found 16333 results on 654 pages for 'exception safe'.

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• Constructing an if statement from the client data in python

  - by Vishal

  Hi, I need to construct an if statement from the data coming from the client as below: conditions: condition1, condition2, condition3, condition4 logical operators: lo1, lo2, lo3 (Possible values: "and" "or") Eg. if condition1 lo1 condition2 lo3 condition4: # Do something I can think of eval/exec but not sure how safe they are! Any better approach or alternative? Appreciate your responses :) PS: Client-side: Flex, Server-side: Python, over internet Thanks

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• How does google-analytics guarantees that the tracking record is coming from the real site

  - by tuler

  When you sign up to google analytics it instructs you to use a javascript snippet on every page you want to track. This code includes an API key, which is visible to everyone who views your source code. How does it guarantees that the request is coming from the real site, and not from a third-party who wants to mess with your statistics? Does it check the HTTP Referer header? Even that is not safe, as it can be forged.

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• Best method to peek into a Scala Actor's Mailbox

  - by scaling_out

  Using Scala 2.8 RC1 or newer, what is the best (easiest and/or most direct) method to "peek" at the waiting messages in an actor's mailbox (from within the same actor's act() method) in order to examine what is in the queue, without having to react/receive the messages and/or disturb the current contents of the mailbox in any way. The purpose of this is so that an actor may determine if it is safe to process a request to exit by first determining if any of the remaining mailbox messages are ones that must be processed, instead of just dropped by stopping the actor immediately.

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• Some questions regarding threads and deadlocks

  - by mousey

  will parent process and child process in deadlock if parent is using resource and child will also get same resource ? what if parent contains two threads ? will child also get 2 threads ? how can fork will be thread safe ?

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• Can str_replace mangle a UTF-8 encoded string if it's only given valid UTF-8 encoded strings as argu

  - by Manos Dilaverakis

  PHP's str_replace() was intended only for ANSI strings and as such can mangle UTF-8 strings. However, given that it's binary-safe would it have a problem if it was only given valid UTF-8 strings as arguments? Edit: I'm not looking for a replacement function, I would just like to know if this hypothesis is correct.

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• Saving objects in servlet session and java.io.NotSerializableException

  - by EugeneP

  SEVERE: IOException while loading persisted sessions: java.io.WriteAbortedException: writi ng aborted; java.io.NotSerializableException: That means this object cannot be persisted on hard disk. Does it imply that it's not safe to keep in Session objects that do not implement "Serializable"? I haven't heard that there are limitations on saving non-serializable objects in Session object. It simply means that Tomcat will always keep them in memory, right?

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• Saving objects in servlet session and java.io.NotSerializableException

  - by EugeneP

  SEVERE: IOException while loading persisted sessions: java.io.WriteAbortedException: writi ng aborted; java.io.NotSerializableException: That means this object cannot be persisted on hard disk. Does it imply that it's not safe to keep in Session objects that do not implement "Serializable"? I haven't heard that there are limitations on saving non-serializable objects in Session object. It simply means that Tomcat will always keep them in memory, right?

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• Question regarding to value/reference type of events

  - by Petr

  Hi, On the MSDN, I have found following: public event EventHandler<MyEventArgs> SampleEvent; public void DemoEvent(string val) { // Copy to a temporary variable to be thread-safe. EventHandler<MyEventArgs> temp = SampleEvent; if (temp != null) temp(this, new MyEventArgs(val)); } I do not understand, "copy to temporary variable", isnt it reference type?

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• How to write a Python 2.6+ script that does gracefully fail with older pyhton?

  - by Sorin Sbarnea

  I'm using the new print from Python 3.x and I observed that the following code does not compile due to the end=' '. from __future__ import print_function import sys if sys.hexversion < 0x02060000: raise Exception("py too old") ... print("x",end=" ") # fails to compile with py24 How can I continue using the new syntax but make the script fails nicely? Is it mandatory to call another script and use only safe syntax in this one?

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• Simple oracle backup without using exp or expdp

  - by Jacob

  I have Oracle 10g installed on Windows in C:\oracle. If I stop all Oracle services, is it safe to backup by just copying the entire directory (e.g., to C:\oracle_bak), or am I significantly better off using expdp? Pointers to docs/websites very welcome, I wasn't able to Google up anything relevant.

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• On thread safety in python using D-Bus asynchronous method calls

  - by chatbot

  I write a python class which makes asynchronous method calls using D-Bus. When my reply_handler is called, it stores data in list. This list can be used by another class methods at the same time. Is it safe or I can use only synchronized data structures like Queue class?

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• How to sanitize this particular mysql query ?

  - by justjoe

  i got this SQL query where post_title taken from $_GET $sql = "SELECT ID FROM $wpdb-posts WHERE $wpdb-posts.post_title = '5-desain-web-colourful'"; What is the best way to sanitize this and make it more safe ?

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• Can an image licensed under LGPL be used in print media?

  - by user324289

  LGPL seems to be targeted towards software modules. Is it safe to use an image licensed under LGPL in commercial print media? For example, as an image on a software box cover to be sold in stores that contains a CD.

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• Generics and anonymous type

  - by nettguy

  I understood,normally generics is for compile time safe and allow us to keep strongly typed collection.Then how do generic allow us to store anonymous types like List<object> TestList = new List<object>(); TestList.Add(new { id = 7, Name = "JonSkeet" }); TestList.Add(new { id = 11, Name = "Marc Gravell" }); TestList.Add(new { id = 31, Name = "Jason" });

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• color code in X/HTML , CSS..

  - by jitendra

  In how many ways we can give color info in X/HTML, css? I know some Hex color name rgba is there any other method? and which method is preferred to use and which not? Please give explanation. And what is the means of web-safe colors?

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• dao as a member of a servlet - normal?

  - by EugeneP

  I guess, DAO is thread safe, does not use any class members. So can it be used without any problem as a private field of a Servlet ? We need only one copy, and multiple threads can access it simultaneously, so why bother creating a local variable, right?

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• Is Outlook-friendly HTML code different from code for a conventional web page?

  - by justSteve

  My web-app has to deliver db-generated content by email. The HTML need not include javascript but _does have to include images and CSS. It's a safe bet that most users will be viewing this in Outlook. Are general guidelines different for html destined for email vs. IE?

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• How to make will_paginate work with liquid

  - by iktorn

  I managed to make a little hack to make will_paginate work with liquid: http://gist.github.com/426737 I wonder if this is safe? Ideas?

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• Prevent Application Shutdown iPhone

  - by Paul Alexander

  I'm building a little dialing program for my kids so that only 4 "safe" numbers are available for them to dial. I'd like to start the app, hand them the phone and have the app be the only thing running until they come back home. Is there a way to keep the application running and prevent the iPhone from shutting down the app?

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• Best JSF framework/library for "conversation state"

  - by stacked

  What do people think is the best JSF framework or library for a saving state longer than request scope (but w/o using session scope) that is backbutton/new window safe -- i.e. you have a "wizard"/multi-page form. For example, MyFaces has the 'SaveState' tag (http://bit.ly/8QHmX5) that allows you to maintain state across pages by saving state in the view's component tree. Any comments on SaveState (pros/cons) or suggestions for any better framework or library for this capability?

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• Clear subversion revision info

  - by RD

  I want to remove all stored revision info, except for the most up to date version (in an effort to safe space). Is this possible?

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• How does one Dispose an object that is set in foreach?

  - by Greg Ogle

  foreach(var someDisposableObject in listOfDisposableObjects) { //some code someDisposableObject.Dispose(); //current code contains something like this. } Is there safe way, like a using clause to use in this scenario?

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• SQL Server stored procedure in multi threaded environments

  - by Shamika

  Hi, I need to execute some Sql server stored procs in a thread safe manner. At the moment I'm using software locks (C# locks) to achieve this but wonder what kind of features provided by the Sql server itself to achieve thread safety. It seems to be there are some table and row locking features built in to Sql server. Also from a performance perspective what is best approach? Software locks? Or Sql Server built in locks? Thanks, Shamika

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• How to set an image based on iphone platform in objective-c

  - by Toran Billups

  I'm moving my application from 3.x to 4.x as I prepare for the app store and found that I need to have 2 copies of all my custom pngs - my question is how can I determine what img to show and when. Example - how do I know to show the Find.png vs the [email protected] Is it "safe" or "correct" to look for 4.x specific apis or does the iphone have a way to determine what platform you are on at runtime? Thank you in advance

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• Drupal is unable to create the "files" folder (and any upload php script as well)

  - by Patrick

  hi, Drupal cannot create the "files" folder. I tried to upload a php script with mkdir("files",774) but I get a permissions error, so basically any php script is not able to create a folder on the server... What do you suggest ? If I create the folder manually from ftp client and I assign 777 permission everything works perfectly, but it is not safe solution.

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