onCreate:
After click log in and wait for a while:
This will trigger constructor.
Fetch service document and meta data in constructor.
Asynchronous task: The trigger point is in thread 1.
onSucceed: thread 17.
Since service document is loaded, next step is to try to load meta data. This is a state machine.
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Service Document variable:
Now Load Metadata:
Now metadata loaded ok:
Metadata must be parsed with the help of service document:
InitialListener:
All thread lists:
Get Customer collection list:
And display in on UI:
Control has moved to here:
Get view is called:
Click one item:
onCreate: now create detail view:
How does Gateway URL is fetched based on Application
private void loadServiceDocument() throws MessagingClientException, SDMParserException {
//progressDialog.setMessage(app.getString(R.string.load_service_doc));
//progressDialog.show();
SDMConnectivityParameters params = new SDMConnectivityParameters();
params.setUserName(app.getUserName());
params.setUserPassword(app.getUserPassword());
params.setBaseUrl(app.getGatewayUrl());
SDMLogger logger = new SDMLogger();
SDMPreferences sprefs = new SDMPreferences(app.getApplicationContext(), logger);
requestManager = new SDMRequestManager(logger, sprefs, params, 1);
parser = new SDMParser(sprefs, logger);
if (app.isSup()) {
LiteUserManager.initInstance(app.getApplicationContext(), Constants.SUP_APPLICATION_NAME);
LiteUserManager um = LiteUserManager.getInstance();
try {
LiteMessagingClient.initInstance(app.getApplicationContext(), Constants.SUP_APPLICATION_NAME);
} catch (MessagingClientException e) {
e.printStackTrace();
}
try {
LiteMessagingClient.getInstance().startClient();
} catch (MessagingClientException e) {
e.printStackTrace();
}
if (um.isRegistered())
{
LiteAppSettings las = new LiteAppSettings();
try {
this.serviceURL = las.getApplicationEndPoint();
this.serviceURL = "http://ldcigm2.wdf.sap.corp:50018/sap/opu/sdata/sap/CUSTOMER_BRIEFING/";
requestManager.getConnectivityParameters().setBaseUrl(this.serviceURL);
requestManager.setMainHandlerClassName(SDMConstants.SDM_HTTP_HANDLER_CLASS);
} catch (MessagingClientException e) {
e.printStackTrace();
}
} else {
//show message that the user is not registered
}
} else { // configure using gateway
requestManager.setMainHandlerClassName(SDMConstants.SDM_HTTP_HANDLER_CLASS);
this.serviceURL = "http:" + app.getGatewayUrl() + Constants.DEFAULT_APP;
}
// update language with every request
String langCode = Locale.getDefault().getLanguage();
requestManager.getConnectivityParameters().setLanguage(langCode);
// prepare request
ISDMRequest httpRequest = new SDMBaseRequest();
httpRequest.setListener(this);
httpRequest.setRequestUrl(this.serviceURL);
System.out.println("!!!!!! Service URL: " + this.serviceURL);
httpRequest.setRequestMethod(ISDMRequest.REQUEST_METHOD_GET);
httpRequest.setPriority(ISDMRequest.PRIORITY_NORMAL);
requestManager.makeRequest(httpRequest);要获取更多Jerry的原创文章，请关注公众号"汪子熙":