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1. #Filewatcher application how to
2. #Filewatcher application for mac os
3. #Filewatcher application windows

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#Filewatcher application windows

That's it! This little method, postChange(), handles allcommunication between the OS X machine and the Windows machine. If an error is encountered, the errormessage is passed out the method. Thedata in the DataInputStream is transformed to a Stringthat is then passed out of the method.

The InputStream object is transformed into a DataInputStream object. The URL object returns the data passed back from the web siteweb as an InputStreamobject. The Windows web site is called, passing the OS X file systemstate change data. All webaccess is handled by the classes in this package at no additional labor to you,the programmer. These objects are part of the .* package. Internally in the postChange() method, a connection to a web site isopened using the appended URLand URLConnectionobjects. The web siteexpects to see a FileName parameter, a FileMessage parameter,and a FileDateStr parameter in millisecond format. The web site on the Windows machine is fullyprepared to parse the query string data when it's called. The query string isappended to the URL indicating the receiver web site on the Windows machinethat's interested in the OS X file system.

The method creates a query string based onthe values passed in the last three method parameters. The postChange() method, takes four parameters: the URL to call, thename of the file undergoing state change, the state change message, and thedate/time that the change was made. Notice the use of the implements keyword: public class EONFileMonUI extends JDialog implements ActionListener, FileSystemEventListener

This is done by forcing the application to implementthe JNIWrapper FileSystemListener interface, by telling the dialog UIto implement the interface in its code.

#Filewatcher application how to

The application had to know how to look for messages emitted by the FileSystemWatcher. First, I had to import the required parts of the library intomy application: //The FileSystemWatcher interface definitionimport .io.FileSystemEventListener //Does the watchingimport .io.FileSystemWatcher //The events raised by the FileSystemWatcherimport .io.FileSystemEvent Getting the JNIWrapper library to work with my EONFileMonUI.javacode was simple. The Java class library does all the work of monitoring the OS X file systemstate. Learn More Buy Creating the OS X File Watcher with JNIWrapper

#Filewatcher application for mac os

Cocoa Programming for Mac OS X, 2nd Edition