public static int rollbackGUIConfigurationTransaction(String sConfigurationFileName) {
String sConfigurationLockFile;
File fFile;
sConfigurationLockFile = new String(sConfigurationFileName + ".lck");
try {
fFile = new File(URLDecoder.decode(sConfigurationLockFile, "UTF-8"));
} catch (IOException e) {
JOptionPane.showMessageDialog(
null, "URLDecoder.decode failed", "ConfigurationTransaction", JOptionPane.ERROR_MESSAGE);
return 1;
}
if (fFile.delete() == false) {
JOptionPane.showMessageDialog(
null,
"fFile.delete on " + sConfigurationLockFile + " failed",
"ConfigurationTransaction",
JOptionPane.ERROR_MESSAGE);
return 3;
}
return 0;
}
public static int beginGUIConfigurationTransaction(String sConfigurationFileName, String sUser) {
String sConfigurationLockFile;
BufferedWriter bwBufferedWriter;
File fFile;
sConfigurationLockFile = new String(sConfigurationFileName + ".lck");
System.out.println("beginGUIConfigurationTransaction: " + sConfigurationFileName);
try {
fFile = new File(URLDecoder.decode(sConfigurationLockFile, "UTF-8"));
} catch (IOException e) {
JOptionPane.showMessageDialog(
null, "URLDecoder.decode failed", "ConfigurationTransaction", JOptionPane.ERROR_MESSAGE);
return 1;
}
if (fFile.exists()) {
BufferedReader brBufferedReader;
char cLastConfigurationUser[];
cLastConfigurationUser = new char[((int) fFile.length())];
try {
brBufferedReader =
new BufferedReader(new FileReader(URLDecoder.decode(sConfigurationLockFile, "UTF-8")));
brBufferedReader.read(cLastConfigurationUser, 0, (int) (fFile.length()));
brBufferedReader.close();
System.out.println(
"Last configuration user: "******"Operation on BufferedWriter failed (1)",
"ConfigurationTransaction",
JOptionPane.ERROR_MESSAGE);
return 1;
}
if (String.copyValueOf(cLastConfigurationUser).compareTo(sUser) == 0) {
System.out.println("File. delete: " + sConfigurationFileName);
if (fFile.delete() == false) {
JOptionPane.showMessageDialog(
null, "fFile.delete failed", "ConfigurationTransaction", JOptionPane.ERROR_MESSAGE);
return 2;
}
} else {
JOptionPane.showMessageDialog(
null,
"The configuration is locked by "
+ String.copyValueOf(cLastConfigurationUser)
+ ".\nYou cannot change the configuration.",
"ConfigurationTransaction",
JOptionPane.PLAIN_MESSAGE);
return 3;
}
}
try {
bwBufferedWriter =
new BufferedWriter(new FileWriter(URLDecoder.decode(sConfigurationLockFile, "UTF-8")));
bwBufferedWriter.write(sUser, 0, sUser.length());
bwBufferedWriter.close();
System.out.println("Configuration user written: " + sUser);
} catch (IOException e) {
JOptionPane.showMessageDialog(
null,
"Operation on BufferedWriter failed (" + e + ")",
"ConfigurationTransaction",
JOptionPane.ERROR_MESSAGE);
return 4;
}
return 0;
}
public static int commitGUIConfigurationTransaction(
XMLTreeForConfiguration xtfcXMLTreeForConfiguration, Vector vFunctionalities) {
TreeVisit tvConfigurationTreeVisit;
TreeVisitToGetConfigurationFile tvgcTreeVisitToGetConfigurationFile;
String sConfigurationFile;
URL uXML;
String sConfigurationLockFile;
BufferedWriter bwBufferedWriter;
File fFile;
tvgcTreeVisitToGetConfigurationFile = new TreeVisitToGetConfigurationFile(vFunctionalities);
tvConfigurationTreeVisit = new TreeVisit(tvgcTreeVisitToGetConfigurationFile);
if (tvConfigurationTreeVisit.inOrderVisit(xtfcXMLTreeForConfiguration.getXMLTopTreeComponent())
!= 0) {
JOptionPane.showMessageDialog(
null, "inOrderVisit failed", "ConfigurationTransaction", JOptionPane.ERROR_MESSAGE);
return 1;
}
sConfigurationFile = tvgcTreeVisitToGetConfigurationFile.getConfigurationFile();
System.out.println("commitGUIConfigurationTransaction: " + sConfigurationFile);
uXML = xtfcXMLTreeForConfiguration.getXML();
try {
bwBufferedWriter =
new BufferedWriter(new FileWriter(URLDecoder.decode(uXML.getFile(), "UTF-8")));
bwBufferedWriter.write(sConfigurationFile, 0, sConfigurationFile.length());
bwBufferedWriter.close();
System.out.println(
"commitGUIConfigurationTransaction: file written ("
+ URLDecoder.decode(uXML.getFile(), "UTF-8")
+ ")");
} catch (IOException e) {
JOptionPane.showMessageDialog(
null,
"Operation on BufferedWriter failed (3)",
"ConfigurationTransaction",
JOptionPane.ERROR_MESSAGE);
return 2;
}
sConfigurationLockFile = new String(uXML.getFile() + ".lck");
try {
fFile = new File(URLDecoder.decode(sConfigurationLockFile, "UTF-8"));
System.out.println("File. delete: " + URLDecoder.decode(sConfigurationLockFile, "UTF-8"));
} catch (IOException e) {
JOptionPane.showMessageDialog(
null, "URLDecoder.decode failed", "ConfigurationTransaction", JOptionPane.ERROR_MESSAGE);
return 1;
}
if (fFile.delete() == false) {
JOptionPane.showMessageDialog(
null,
"fFile.delete on " + sConfigurationLockFile + " failed",
"ConfigurationTransaction",
JOptionPane.ERROR_MESSAGE);
return 3;
}
return 0;
}