/** Launch a client app for the given concert app. */
public static Result launch(
final Activity parent,
final RoconDescription concert,
final rocon_interaction_msgs.Interaction app) {
Log.i(
"AppLaunch",
"launching concert app " + app.getDisplayName() + " on service " + app.getNamespace());
// On android apps, app name will be an intent action, while for web apps it will be its URL
if (Patterns.WEB_URL.matcher(app.getName()).matches() == true) {
return launchWebApp(parent, concert, app);
} else if (app.getName().length() == 0) {
return Result.NOTHING;
} else if (checkAppName(app.getName()).length() != 0) {
return launchWebApp(parent, concert, app);
} else {
return launchAndroidApp(parent, concert, app);
}
}
/** Launch a client web app for the given concert app. */
private static Result launchWebApp(
final Activity parent,
final RoconDescription concert,
final rocon_interaction_msgs.Interaction app) {
try {
// Validate the URL before starting anything
String app_name = "";
String app_type = "";
// Parse the url
if (checkAppType(app.getName()) == AppType.WEB_URL) {
app_type = "web_url";
app_name = app.getName().substring(app_type.length() + 1, app.getName().length() - 1);
} else if (checkAppType(app.getName()) == AppType.WEB_APP) {
app_type = "web_app";
app_name = app.getName().substring(app_type.length() + 1, app.getName().length() - 1);
} else {
app_name = app.getName();
}
URL appURL = new URL(app_name);
AsyncTask<URL, Void, String> asyncTask =
new AsyncTask<URL, Void, String>() {
@Override
protected String doInBackground(URL... urls) {
try {
HttpURLConnection urlConnection = (HttpURLConnection) urls[0].openConnection();
int unused_responseCode = urlConnection.getResponseCode();
urlConnection.disconnect();
return urlConnection.getResponseMessage();
} catch (IOException e) {
return e.getMessage();
}
}
}.execute(appURL);
String result = asyncTask.get(5, TimeUnit.SECONDS);
if (result == null
|| (result.startsWith("OK") == false && result.startsWith("ok") == false)) {
return Result.CANNOT_CONNECT.withMsg(result);
}
// We pass concert URL, parameters and remaps as URL parameters
String appUriStr = app_name;
String interaction_data = "{";
// add remap
String remaps = "\"remappings\": {";
if ((app.getRemappings() != null) && (app.getRemappings().size() > 0)) {
for (rocon_std_msgs.Remapping remap : app.getRemappings())
remaps += "\"" + remap.getRemapFrom() + "\":\"" + remap.getRemapTo() + "\",";
remaps = remaps.substring(0, remaps.length() - 1) + "}";
} else {
remaps += "}";
}
remaps += ",";
interaction_data += remaps;
// add displayname
String displayname = "\"display_name\":";
if ((app.getDisplayName() != null) && (app.getDisplayName().length() > 0)) {
displayname += "\"" + app.getDisplayName() + "\"";
}
displayname += ",";
interaction_data += displayname;
// add parameters
String parameters = "\"parameters\": {";
if ((app.getParameters() != null) && (app.getParameters().length() > 0)) {
Yaml yaml = new Yaml();
Map<String, String> params = (Map<String, String>) yaml.load(app.getParameters());
for (String key : params.keySet()) {
parameters += "\"" + key + "\":\"" + String.valueOf(params.get(key)) + "" + "\",";
}
parameters = parameters.substring(0, parameters.length() - 1);
}
parameters += "}";
interaction_data += parameters;
interaction_data += "}";
if (app_type.equals("web_url")) {
appUriStr = appUriStr;
} else if (app_type.equals("web_app")) {
appUriStr = appUriStr + "?" + "interaction_data=" + URLEncoder.encode(interaction_data);
} else {
appUriStr = appUriStr + "?" + "interaction_data=" + URLEncoder.encode(interaction_data);
}
appURL.toURI(); // throws URISyntaxException if fails; probably a redundant check
Uri appURI = Uri.parse(appUriStr);
// Create an action view intent and pass rapp's name + extra information as URI
Intent intent = new Intent(Intent.ACTION_VIEW, appURI);
Log.i("AppLaunch", "trying to start web app (URI: " + appUriStr + ")");
parent.startActivity(intent);
return Result.SUCCESS;
} catch (URISyntaxException e) {
return Result.MALFORMED_URI.withMsg("Cannot convert URL into URI. " + e.getMessage());
} catch (MalformedURLException e) {
return Result.MALFORMED_URI.withMsg("App URL is not valid. " + e.getMessage());
} catch (ActivityNotFoundException e) {
// This cannot happen for a web site, right? must mean that I have no web browser!
return Result.NOT_INSTALLED.withMsg("Activity not found for view action??? muoia???");
} catch (TimeoutException e) {
return Result.CONNECT_TIMEOUT.withMsg("Timeout waiting for app");
} catch (Exception e) {
return Result.OTHER_ERROR.withMsg(e.getMessage());
}
}