public UpButton() {
Mnemonic mnText = new Mnemonic(ResourceStrings.getString("up_button"));
setImage(getClass(), "up.gif", mnText);
}
/**
* Perform the actual export.
*
* @param deleteData True if data should be deleted after a successful export.
* @param overwrite True if file should be forcibly overwritten. An ExistsException will be thrown
* if the file exists and overwrite is false.
* @return true if the export succeeded, false on failure.
*/
public boolean exportData(boolean deleteData, boolean overwrite) throws ExistsException {
Object ref = null;
// Value to return; default to false for failure
boolean retval = false;
// Default to deleting the file on any errors
boolean deleteFile = true;
if (allNets) {
try {
// Load network list
setNetworks(server.getNetMgr().getNetworks());
} catch (Exception e) {
displayException(e, ResourceStrings.getString("exp_err_loading_networks"));
return false;
}
}
/*
* Number of records in the export file is number of networks, plus 1
* for options, plus 1 for macros.
*/
int recCount = networks.length + 2;
// Calculate total number of estimated ops for progress
int optionOps = allOptions ? DEFAULT_OPTION_COUNT : options.length;
int optionDelOps = 0;
int macroOps = allMacros ? DEFAULT_MACRO_COUNT : macros.length;
int macroDelOps = 0;
int netOps = DEFAULT_CLIENTS_PER_NET * networks.length;
int netDelOps = 0;
int totalOps = optionOps + macroOps + netOps;
if (totalOps == 0) {
// Nothing to export!!!
exporter.displayError(ResourceStrings.getString("exp_err_no_data"));
return false;
}
// If user wants to delete, add to number of ops required
if (deleteData) {
optionDelOps = optionOps * OPTION_DELETE_OPS;
macroDelOps = macroOps * MACRO_DELETE_OPS;
netDelOps = netOps * NETWORK_DELETE_OPS;
totalOps += optionDelOps + macroDelOps + netDelOps;
}
/*
* Open the file; catch IO errors, but if we get an ExistsException we
* just let that through to the caller, who's supposed to deal with it
* appropriately.
*/
try {
ref = server.openExportFile(file, user, recCount, networks, overwrite);
// If lock couldn't be obtained, display error and abort
if (ref == null) {
String[] args = new String[2];
args[0] = server.getDhcpServiceMgr().getServerName();
args[1] = server.getLockPath();
MessageFormat form = new MessageFormat(ResourceStrings.getString("lock_error"));
exporter.displayError(form.format(args));
return false;
}
} catch (IOException e) {
displayException(e, ResourceStrings.getString("exp_err_io"));
return false;
}
try {
// Initialize progress with our expected number of operations
exporter.initializeProgress(totalOps);
int progress = 0;
// Now export the options
if (optionOps != 0) {
// Only update progress if we're actually doing something here
exporter.updateProgress(progress, ResourceStrings.getString("exp_exporting_options"));
}
try {
server.exportOptions(ref, allOptions, options);
} catch (BridgeException e) {
displayException(e, ResourceStrings.getString("exp_err_exporting_options"));
throw new InterruptedException();
}
progress += optionOps;
if (macroOps != 0) {
// Only update progress if we're actually doing something here
exporter.updateProgress(progress, ResourceStrings.getString("exp_exporting_macros"));
}
// Now export the macros
try {
server.exportMacros(ref, allMacros, macros);
} catch (BridgeException e) {
displayException(e, ResourceStrings.getString("exp_err_exporting_macros"));
throw new InterruptedException();
}
progress += macroOps;
// Set up for progress messages
MessageFormat form = new MessageFormat(ResourceStrings.getString("exp_exporting_network"));
String[] nets = new String[1];
// Now export each network in turn
for (int i = 0; i < networks.length; ++i) {
// Export the network
try {
nets[0] = networks[i].toString();
exporter.updateProgress(progress, form.format(nets));
server.exportNetwork(ref, networks[i]);
progress += DEFAULT_CLIENTS_PER_NET;
} catch (BridgeException e) {
MessageFormat fmt =
new MessageFormat(ResourceStrings.getString("exp_err_exporting_network"));
String[] args = new String[] {nets[0], e.getMessage()};
exporter.displayError(fmt.format(args));
throw new InterruptedException();
}
}
// Success; don't delete the file
deleteFile = false;
// If user wants data deleted, too, then do it now
if (deleteData) {
ActionError[] optionErrs, macroErrs;
// Delete options
if (optionDelOps != 0) {
// Only update progress if something to delete
exporter.updateProgress(progress, ResourceStrings.getString("exp_deleting_options"));
}
if (allOptions) {
try {
optionErrs = server.getDhcptabMgr().deleteAllOptions();
} catch (BridgeException e) {
optionErrs = new ActionError[1];
optionErrs[0] = new ActionError(ResourceStrings.getString("all_options"), e);
}
} else {
optionErrs = server.getDhcptabMgr().deleteOptions(options);
}
progress += optionDelOps;
// Delete macros
if (macroDelOps != 0) {
// Only update progress if something to delete
exporter.updateProgress(progress, ResourceStrings.getString("exp_deleting_macros"));
}
if (allMacros) {
try {
macroErrs = server.getDhcptabMgr().deleteAllMacros();
} catch (BridgeException e) {
macroErrs = new ActionError[1];
macroErrs[0] = new ActionError(ResourceStrings.getString("all_macros"), e);
}
} else {
macroErrs = server.getDhcptabMgr().deleteMacros(macros);
}
progress += macroDelOps;
// Delete each network in turn
form = new MessageFormat(ResourceStrings.getString("exp_deleting_network"));
ArrayList errList = new ArrayList();
for (int i = 0; i < networks.length; ++i) {
nets[0] = networks[i].toString();
exporter.updateProgress(progress, form.format(nets));
try {
server.getNetMgr().deleteNetwork(nets[0], false, true);
} catch (BridgeException e) {
errList.add(new ActionError(nets[0], e));
}
progress += DEFAULT_CLIENTS_PER_NET * NETWORK_DELETE_OPS;
}
// This update informs caller we're done
exporter.updateProgress(progress, ResourceStrings.getString("export_completed"));
// Now display whatever errors happened during delete
if (optionErrs != null && optionErrs.length > 0) {
exporter.displayErrors(
ResourceStrings.getString("exp_err_deleting_options"),
ResourceStrings.getString("exp_option"),
optionErrs);
}
if (macroErrs != null && macroErrs.length > 0) {
exporter.displayErrors(
ResourceStrings.getString("exp_err_deleting_macros"),
ResourceStrings.getString("exp_macro"),
macroErrs);
}
if (!errList.isEmpty()) {
exporter.displayErrors(
ResourceStrings.getString("exp_err_deleting_networks"),
ResourceStrings.getString("exp_network"),
(ActionError[]) errList.toArray(new ActionError[0]));
}
}
retval = true;
} catch (InterruptedException e) {
/*
* User wanted to cancel, or some serious failure occurred; in the
* former case no need to display anything, in the latter it
* was already displayed before we got here, so just return.
*/
retval = false;
} catch (Exception e) {
// I/O error of some sort. Display it before returning.
displayException(e, ResourceStrings.getString("exp_err_io"));
retval = false;
} finally {
// Always close before leaving; display any resulting errors
try {
server.closeExportFile(ref, deleteFile);
} catch (IOException e) {
displayException(e, ResourceStrings.getString("exp_err_closing_file"));
}
}
return retval;
}
