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package net.sourceforge.subsonic.booter.agent;
import java.awt.Desktop;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import javax.swing.JOptionPane;
import javax.swing.UIManager;
import org.apache.commons.io.IOUtils;
import com.jgoodies.looks.plastic.PlasticXPLookAndFeel;
import net.sourceforge.subsonic.booter.deployer.DeploymentStatus;
import net.sourceforge.subsonic.booter.deployer.SubsonicDeployerService;
/**
* Responsible for deploying the Subsonic web app in
* the embedded Jetty container.
*
* @author Sindre Mehus
*/
public class SubsonicAgent {
private final List<SubsonicListener> listeners = new ArrayList<SubsonicListener>();
private final TrayController trayController;
private SubsonicFrame frame;
private final SubsonicDeployerService service;
private static final int POLL_INTERVAL_DEPLOYMENT_INFO_SECONDS = 5;
private static final int POLL_INTERVAL_SERVICE_STATUS_SECONDS = 5;
private String url;
private boolean serviceStatusPollingEnabled;
private boolean elevated;
public SubsonicAgent(SubsonicDeployerService service) {
this.service = service;
setLookAndFeel();
trayController = new TrayController(this);
startPolling();
}
public void setFrame(SubsonicFrame frame) {
this.frame = frame;
}
private void setLookAndFeel() {
// Set look-and-feel.
try {
UIManager.setLookAndFeel(new PlasticXPLookAndFeel());
} catch (Throwable x) {
System.err.println("Failed to set look-and-feel.\n" + x);
}
}
private void startPolling() {
ScheduledExecutorService executor = Executors.newScheduledThreadPool(2);
Runnable runnable = new Runnable() {
public void run() {
try {
notifyDeploymentInfo(service.getDeploymentInfo());
} catch (Throwable x) {
notifyDeploymentInfo(null);
}
}
};
executor.scheduleWithFixedDelay(runnable, 0, POLL_INTERVAL_DEPLOYMENT_INFO_SECONDS, TimeUnit.SECONDS);
runnable = new Runnable() {
public void run() {
if (serviceStatusPollingEnabled) {
try {
notifyServiceStatus(getServiceStatus());
} catch (Throwable x) {
notifyServiceStatus(null);
}
}
}
};
executor.scheduleWithFixedDelay(runnable, 0, POLL_INTERVAL_SERVICE_STATUS_SECONDS, TimeUnit.SECONDS);
}
private String getServiceStatus() throws Exception {
Process process = Runtime.getRuntime().exec("subsonic-service.exe -status");
return IOUtils.toString(process.getInputStream());
}
public void setServiceStatusPollingEnabled(boolean enabled) {
serviceStatusPollingEnabled = enabled;
}
public void startOrStopService(boolean start) {
try {
String cmd = "subsonic-service.exe " + (start ? "-start" : "-stop");
System.err.println("Executing: " + cmd);
Runtime.getRuntime().exec(cmd);
} catch (Exception x) {
x.printStackTrace();
}
}
/**
* If necessary, restart agent with elevated rights.
*/
public void checkElevation(String... args) {
if (isElevationNeeded() && !isElevated()) {
try {
List<String> command = new ArrayList<String>();
command.add("cmd");
command.add("/c");
command.add("subsonic-agent-elevated.exe");
command.addAll(Arrays.asList(args));
ProcessBuilder builder = new ProcessBuilder();
builder.command(command);
System.err.println("Executing: " + command + " with current dir: " + System.getProperty("user.dir"));
builder.start();
System.exit(0);
} catch (Exception x) {
JOptionPane.showMessageDialog(frame, "Failed to elevate Subsonic Control Panel. " + x, "Error", JOptionPane.WARNING_MESSAGE);
x.printStackTrace();
}
}
}
public void setElevated(boolean elevated) {
this.elevated = elevated;
}
private boolean isElevated() {
return elevated;
}
/**
* Returns whether UAC elevation is necessary (to start/stop services etc).
*/
private boolean isElevationNeeded() {
String osVersion = System.getProperty("os.version");
try {
int majorVersion = Integer.parseInt(osVersion.substring(0, osVersion.indexOf(".")));
// Elevation is necessary in Windows Vista (os.version=6.1) and later.
return majorVersion >= 6;
} catch (Exception x) {
System.err.println("Failed to resolve OS version from '" + osVersion + "'\n" + x);
return false;
}
}
public void addListener(SubsonicListener listener) {
listeners.add(listener);
}
private void notifyDeploymentInfo(DeploymentStatus status) {
if (status != null) {
url = status.getURL();
}
for (SubsonicListener listener : listeners) {
listener.notifyDeploymentStatus(status);
}
}
private void notifyServiceStatus(String status) {
for (SubsonicListener listener : listeners) {
listener.notifyServiceStatus(status);
}
}
public void showStatusPanel() {
frame.showStatusPanel();
}
public void showSettingsPanel() {
frame.showSettingsPanel();
}
public void showTrayIconMessage() {
trayController.showMessage();
}
public void exit() {
trayController.uninstallComponents();
System.exit(0);
}
public void openBrowser() {
try {
Desktop.getDesktop().browse(new URI(url));
} catch (Throwable x) {
x.printStackTrace();
}
}
}
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