/** @param args */
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
/* Before this is run, be sure to set up the launch configuration (Arguments->VM Arguments)
* for the correct SWT library path in order to run with the SWT dlls.
* The dlls are located in the SWT plugin jar.
* For example, on Windows the Eclipse SWT 3.1 plugin jar is:
* installation_directory\plugins\org.eclipse.swt.win32_3.1.0.jar
*/
Display display = Display.getDefault();
ActiveHostsFileWindow thisClass = new ActiveHostsFileWindow();
thisClass.createSShell();
thisClass.sShell.open();
/*
* Loads active hosts file
*/
File activeHostsFile = getActiveHostsFile();
thisClass.highlightActiveHostsFile(activeHostsFile);
thisClass.label.setText("Current hosts file (located at " + activeHostsFile.getPath() + ")");
HostsFile hf = thisClass.loadHostsFile(activeHostsFile);
System.out.println("Lines: " + hf.getHostsFileLines().size());
HostsFileDAO hfDAO = new HostsFileSerializationDAO();
hfDAO.save(hf);
while (!thisClass.sShell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
/**
* Parses a hosts file and loads it into its corresponding Javabean representation.
*
* @param hostsFile
* @return
* @throws IOException
*/
private HostsFile loadHostsFile(File hostsFile) throws IOException, ParseException {
/* Object to be returned */
HostsFile hostsFileObject = new HostsFile();
BufferedReader br = null;
int lineCounter = 1;
try {
br = new BufferedReader(new FileReader(hostsFile));
String line = null;
while ((line = br.readLine()) != null) {
line += "\n";
/* Remark */
if (line.startsWith(REM_LINE_CHAR)) {
CommentLine commentLine = new CommentLine();
commentLine.setLine(line);
hostsFileObject.addLine(commentLine);
} else if (StringUtils.isBlank(line)) // Blank line
{
BlankLine blankLine = new BlankLine();
blankLine.setLine(line);
hostsFileObject.addLine(blankLine);
} else {
Scanner scanner = new Scanner(line);
HostLine hostLine = new HostLine();
if (scanner.hasNext()) {
/* Expects an IP address */
String ipAddress = scanner.next();
if (NetworkUtils.isIpAddress(ipAddress)) {
hostLine.setIpAddress(ipAddress);
} else
throw new ParseException(
"Expected an IP address but found '" + ipAddress + "'", lineCounter);
/* Expects a list of hostnames */
List<String> hostNames = new LinkedList<String>();
String hostName = null;
while (scanner.hasNext()) {
hostName = scanner.next();
if (NetworkUtils.isHostName(hostName)) {
hostNames.add(hostName);
} else
throw new ParseException(
"Expected a hostname but found '" + hostName + "'", lineCounter);
}
hostLine.setHostNames(hostNames);
hostLine.setLine(line);
hostsFileObject.addLine(hostLine);
}
}
}
} finally {
if (br != null) br.close();
}
return hostsFileObject;
}