/**
* Update URL and gauge of the progress form.
*
* @param url new URL, null to remove, "" to not change
* @param size 0 if unknown, else size of object to download in K bytes
* @param gaugeLabel label for progress gauge
*/
private void updateProgressForm(String url, int size, String gaugeLabel) {
Gauge oldProgressGauge;
Gauge progressGauge;
StringItem urlItem;
// We need to prevent "flashing" on fast development platforms.
while (System.currentTimeMillis() - lastDisplayChange < GraphicalInstaller.ALERT_TIMEOUT) ;
if (size <= 0) {
progressGauge = new Gauge(gaugeLabel, false, Gauge.INDEFINITE, Gauge.CONTINUOUS_RUNNING);
} else {
progressGauge = new Gauge(gaugeLabel, false, size, 0);
}
oldProgressGauge = (Gauge) progressForm.get(progressGaugeIndex);
progressForm.set(progressGaugeIndex, progressGauge);
// this ends the background thread of gauge.
oldProgressGauge.setValue(Gauge.CONTINUOUS_IDLE);
if (url == null) {
urlItem = new StringItem("", "");
progressForm.set(progressUrlIndex, urlItem);
} else if (url.length() != 0) {
urlItem = new StringItem(Resource.getString(ResourceConstants.AMS_WEBSITE) + ": ", url);
progressForm.set(progressUrlIndex, urlItem);
}
lastDisplayChange = System.currentTimeMillis();
}
/**
* Get the list of suites for the user to install. The suites that are listed are the links on a
* web page that end with .jad.
*/
public void run() {
StreamConnection conn = null;
InputStreamReader in = null;
String errorMessage;
long startTime;
startTime = System.currentTimeMillis();
try {
parent.displayProgressForm(
Resource.getString(ResourceConstants.AMS_DISC_APP_GET_INSTALL_LIST),
"",
url,
0,
Resource.getString(ResourceConstants.AMS_GRA_INTLR_CONN_GAUGE_LABEL));
conn = (StreamConnection) Connector.open(url, Connector.READ);
in = new InputStreamReader(conn.openInputStream());
try {
parent.updateProgressForm(
"", 0, Resource.getString(ResourceConstants.AMS_DISC_APP_GAUGE_LABEL_DOWNLOAD));
parent.installList = SuiteDownloadInfo.getDownloadInfoFromPage(in);
if (parent.installList.size() > 0) {
parent.installListBox =
new List(
Resource.getString(ResourceConstants.AMS_DISC_APP_SELECT_INSTALL),
Choice.IMPLICIT);
// Add each suite
for (int i = 0; i < parent.installList.size(); i++) {
SuiteDownloadInfo suite = (SuiteDownloadInfo) installList.elementAt(i);
parent.installListBox.append(suite.label, (Image) null);
}
parent.installListBox.addCommand(parent.backCmd);
parent.installListBox.addCommand(parent.installCmd);
parent.installListBox.setCommandListener(parent);
/*
* We need to prevent "flashing" on fast development
* platforms.
*/
while (System.currentTimeMillis() - parent.lastDisplayChange
< GraphicalInstaller.ALERT_TIMEOUT) ;
parent.display.setCurrent(parent.installListBox);
return;
}
errorMessage = Resource.getString(ResourceConstants.AMS_DISC_APP_CHECK_URL_MSG);
} catch (IllegalArgumentException ex) {
errorMessage = Resource.getString(ResourceConstants.AMS_DISC_APP_URL_FORMAT_MSG);
} catch (Exception ex) {
errorMessage = ex.getMessage();
}
} catch (Exception ex) {
errorMessage = Resource.getString(ResourceConstants.AMS_DISC_APP_CONN_FAILED_MSG);
} finally {
if (parent.progressForm != null) {
// end the background thread of progress gauge.
Gauge progressGauge = (Gauge) parent.progressForm.get(parent.progressGaugeIndex);
progressGauge.setValue(Gauge.CONTINUOUS_IDLE);
}
try {
conn.close();
in.close();
} catch (Exception e) {
if (Logging.REPORT_LEVEL <= Logging.WARNING) {
Logging.report(Logging.WARNING, LogChannels.LC_AMS, "close threw an Exception");
}
}
}
Alert a =
new Alert(
Resource.getString(ResourceConstants.ERROR), errorMessage, null, AlertType.ERROR);
a.setTimeout(Alert.FOREVER);
parent.display.setCurrent(a, parent.urlTextBox);
}