Figure 1. Normal

Figure2. Something Changes in Application Directory

When will this situation happen?
If  any modification was done at the files under application directory, the Encrypted Local Store directory will be change. The information you stored in Encrypted Local Store class will be no longer available.

What should we do?
Don’t write anything into application directory. Be careful when you are operating on File.applicationDirectory. Or never sign your application .

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Flex 4 – Including the new Spark skinning and component architecture enabling a new level of expressiveness in RIAs in addition to supporting the new Flash Catalyst to Flash Builder workflow.

Flash Builder 4 – There are over 90 new features in this release, and you can use them with both Flex 3 and Flex 4 to gain big improvements in development time, integration and building more expressive apps. (Note: Please be sure to uninstall any FB4 beta SW before installing the release product)

ColdFusion Builder – This new Eclipse-based IDE for ColdFusion development is deeply integrated with ColdFusion 9 in addition to making it fast and easy for CF developers to create Flex applications with integration between ColdFusion Builder and Flash Builder。

• Read Andrew Shorten’s Flex Team Blog post

• Get Flash Builder 4 (remember to uninstall any FB4 beta SW first)

• AdobeTV: Learn what developers like about Flash Builder in this video from Flash Camp Boston from March 19th

• AdobeTV: David Wadhwani, VP and GM of Adobe’s Platform BU introduces new Flash Platform products

• Test drive Flex 4 – Take the Flex Test Drive: Build an application in an hour and learn about Flex 4 using this new guided, video tutorial

• Flex-in-a-week free video training – New for Flex 4

• Get ColdFusion Builder

• Video: ColdFusion Builder Feature Tour

• Flex product info on adobe.com

• ColdFusion product info on adobe.com

Technorati : ColdFusion, flash, flex

127.0.0.1 - - [27/Jan/2010:17:48:24 +0800] "GET /abc/api.xml?msg=%22test%22 HTTP/1.1" 302 225

After the data has been collected, you can use various tools to analyze the data you got. You can write a script to put your data into a database or convert the log files to another format which your analytic tools can recognize.

There is a use full toll for you to analyze the log called loghetti. It allows you count your data.

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Which class to handle file?

The FileStream Class is the major Class for operating content of a file. A FileStream object has two methods for opening a file. One is synchrony open, another is asynchrony. The open operation will decide the behavior of other file operation you perform on the FileStream object. If the object is opened in synchrony, the operations such as write and read will be also synchrony. It means that the application can’t do anything until the read is finished. If you open a file in asynchrony method by calling openAsync, all reading and writing operations will be asynchrony. The application should handle to get results of operation the events.

Why asynchrony open?

The asynchrony open is used when application need to write a large data fragment. These writing operations are time consuming. If you don’t want your application behaves like death, you should use asynchrony open. Or your application needs to read from a stream, the data is not all ready when the application open the stream file. The synchrony read can only read the data already exists.

Actually, When you open a file, the file is not loaded into memory, it just create a handle in system to identify the opened file. So there is no size limitation by AIR-self, but system.

Tip 2: Every sentence should be ended with a dot “.”, if the asdoc is using the language which dosen’t terminate sentence with “.”.

Tip 3: Keep the special or escape characters in mind. The “&” mark is a logic operator and it is also a escape character in ASDoc just like it in html. So the “&&” is not allowed in ASDoc. If you do that, it will be OK in Flex 3, but it will be caused an error when using Flex4. So It is better to make all escape charaters replaced.

Technorati : asdoc, flex

private function testPostWithEmptyData():void

{

var urlLoader:URLLoader = new URLLoader();

var req:URLRequest = new URLRequest();

req.url = “http://dict.cn/POSTWithoutData”;

req.method = URLRequestMethod.POST;

urlLoader.load(req);

}

private function testPostWithData():void

{

var urlLoader:URLLoader = new URLLoader();

var req:URLRequest = new URLRequest();

req.url = “http://dict.cn/POSTWithData”;

req.method = URLRequestMethod.POST;

req.data = new URLVariables(“q=hello”);

urlLoader.load(req);

}

Then you can capture the http request data in wireshark. The POST Request without data will be changed to GET, see follow snapshot

Figure 1. The POST Request Without any data.

Figure 2.The POST Request With Data.

There is a note in help

Note: If running in Flash Player and the referenced form has no body, Flash Player automatically uses a GET operation, even if the method is set to URLRequestMethod.POST. For this reason, it is recommended to always include a “dummy” body to ensure that the correct method is used. But actually in air application, the POST request will be treated as GET if there is no body.