public ExtensionUpdateCheck()
{
// initialize and configure log4net, reading from Xml .config file
log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo("log4net.config"));
log.Info("ExtensionUpdateCheck initializing.");
updatestatus = null;
}
public ExtensionUpdateCheck()
{
// initialize and configure log4net, reading from Xml .config file
log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo("log4net.config"));
log.Info("ExtensionUpdateCheck initializing.");
updatestatus = null;
}
public bool isUpdateAvailable()
{
log.Debug("isUpdateAvailable check starting.");
try
{
// retrieving the Update Check URI from the settings
log.Debug("Retreiving the Update Check URI from the application settings.");
string updateapi = Properties.Settings.Default.extension_update_check_uri;
// setup a query string
log.Debug("Adding the current version to the update URI");
log.Debug("av=" + Assembly.GetExecutingAssembly().GetName().Version);
string query = "av=" + Assembly.GetExecutingAssembly().GetName().Version;
// setup an HTTP Web Request method
log.Debug("Setting up the HTTP request with the URI + query");
WebRequest statusUpdateServerRequest = HttpWebRequest.Create(updateapi + "?" + query);
// set the request method to GET
log.Debug("Setting the request type to GET");
statusUpdateServerRequest.Method = "GET";
// set the content type
log.Debug("Setting the appropriate content type for the request.");
statusUpdateServerRequest.ContentType = "application/x-www-form-urlencoded";
// set the user agent, for trouble shooting
log.Debug("Setting the user agent for this request for identification.");
((HttpWebRequest)statusUpdateServerRequest).UserAgent = "Google Maps Engine Connector for ArcGIS";
// get the HTTP response
log.Debug("Starting to retrieve the HTTP response.");
using (WebResponse statusUpdateServerResponse = statusUpdateServerRequest.GetResponse())
{
// verify the response status was OK
log.Debug("Checking the response for a status of OK");
log.Debug("StatusCode: " + ((HttpWebResponse)statusUpdateServerResponse).StatusCode);
if (((HttpWebResponse)statusUpdateServerResponse).StatusCode == HttpStatusCode.OK)
{
// setup a stream reader to read the response from the server
log.Debug("Setting up a stream reader to retrieve the HTTP response from the update server.");
System.IO.StreamReader reader = new System.IO.StreamReader(statusUpdateServerResponse.GetResponseStream());
// read the response into a local variable
log.Debug("Reading to the end of the stream.");
string response = reader.ReadToEnd();
// close the response stream from the server
log.Debug("Closing the stream.");
statusUpdateServerResponse.Close();
// setup a token object (decode from JSON to object)
log.Debug("Deserializing the HTTP respose JSON object.");
log.Debug("Response: " + response);
updatestatus = JsonConvert.DeserializeObject <UpdateStatusOverview>(response);
log.Debug("Deserialized: " + updatestatus);
// check to make sure the status of the object is not null and it is currently active
log.Debug("Verifying the deserialized object is not null and it has an active status.");
if (updatestatus != null && updatestatus.activeVersions != null && updatestatus.activeVersions.Length > 0)
{
// get the version for ArcGIS 10
log.Debug("Retreive the update value for ArcGIS Desktop 10.");
// TODO: Make this dymaic
UpdateStatusVersion ags10v = updatestatus.activeVersions.Single(q => q.platform.vendor.Equals("Esri") && q.platform.name.Equals("ArcGIS Desktop") && q.platform.version.Equals("10.0"));
// create a Version to define the server's state
log.Debug("Creating a version object to compare the user's version to the server's version");
serverVersion = new Version(ags10v.AddinInstallationVersion);
// compare
log.Debug("Comparing versions.");
log.Debug("User version: " + Assembly.GetExecutingAssembly().GetName().Version);
log.Debug("Server version: " + serverVersion);
if (Assembly.GetExecutingAssembly().GetName().Version.CompareTo(serverVersion) < 0)
{
// update available
log.Debug("Server version is more up-to-date than the user's version. Returning true to update.");
return(true);
}
else
{
// no update available
log.Debug("Versions match or the user's version is more advanced. Returning false to update.");
return(false);
}
}
else
{
// update was unsuccessful or inactive
log.Warn("Update was not successful or the response JSON object was not active.");
// TODO: Do something here...
return(false);
}
}
else
{
log.Warn("HTTP status was not OK.");
throw new System.Exception("...");
}
}
}
catch (System.Exception ex)
{
log.Error("An error occured during the check for an update.", ex);
throw ex;
}
}
public bool isUpdateAvailable()
{
log.Debug("isUpdateAvailable check starting.");
try
{
// retrieving the Update Check URI from the settings
log.Debug("Retreiving the Update Check URI from the application settings.");
string updateapi = Properties.Settings.Default.extension_update_check_uri;
// setup a query string
log.Debug("Adding the current version to the update URI");
log.Debug("av=" + Assembly.GetExecutingAssembly().GetName().Version);
string query = "av=" + Assembly.GetExecutingAssembly().GetName().Version;
// setup an HTTP Web Request method
log.Debug("Setting up the HTTP request with the URI + query");
WebRequest statusUpdateServerRequest = HttpWebRequest.Create(updateapi + "?" + query);
// set the request method to GET
log.Debug("Setting the request type to GET");
statusUpdateServerRequest.Method = "GET";
// set the content type
log.Debug("Setting the appropriate content type for the request.");
statusUpdateServerRequest.ContentType = "application/x-www-form-urlencoded";
// set the user agent, for trouble shooting
log.Debug("Setting the user agent for this request for identification.");
((HttpWebRequest)statusUpdateServerRequest).UserAgent = "Google Maps Engine Connector for ArcGIS";
// get the HTTP response
log.Debug("Starting to retrieve the HTTP response.");
using (WebResponse statusUpdateServerResponse = statusUpdateServerRequest.GetResponse())
{
// verify the response status was OK
log.Debug("Checking the response for a status of OK");
log.Debug("StatusCode: " + ((HttpWebResponse)statusUpdateServerResponse).StatusCode);
if (((HttpWebResponse)statusUpdateServerResponse).StatusCode == HttpStatusCode.OK)
{
// setup a stream reader to read the response from the server
log.Debug("Setting up a stream reader to retrieve the HTTP response from the update server.");
System.IO.StreamReader reader = new System.IO.StreamReader(statusUpdateServerResponse.GetResponseStream());
// read the response into a local variable
log.Debug("Reading to the end of the stream.");
string response = reader.ReadToEnd();
// close the response stream from the server
log.Debug("Closing the stream.");
statusUpdateServerResponse.Close();
// setup a token object (decode from JSON to object)
log.Debug("Deserializing the HTTP respose JSON object.");
log.Debug("Response: " + response);
updatestatus = JsonConvert.DeserializeObject<UpdateStatusOverview>(response);
log.Debug("Deserialized: " + updatestatus);
// check to make sure the status of the object is not null and it is currently active
log.Debug("Verifying the deserialized object is not null and it has an active status.");
if (updatestatus != null && updatestatus.activeVersions != null && updatestatus.activeVersions.Length > 0)
{
// get the version for ArcGIS 10
log.Debug("Retreive the update value for ArcGIS Desktop 10.");
// TODO: Make this dymaic
UpdateStatusVersion ags10v = updatestatus.activeVersions.Single(q => q.platform.vendor.Equals("Esri") && q.platform.name.Equals("ArcGIS Desktop") && q.platform.version.Equals("10.0"));
// create a Version to define the server's state
log.Debug("Creating a version object to compare the user's version to the server's version");
serverVersion = new Version(ags10v.AddinInstallationVersion);
// compare
log.Debug("Comparing versions.");
log.Debug("User version: " + Assembly.GetExecutingAssembly().GetName().Version);
log.Debug("Server version: " + serverVersion);
if (Assembly.GetExecutingAssembly().GetName().Version.CompareTo(serverVersion) < 0)
{
// update available
log.Debug("Server version is more up-to-date than the user's version. Returning true to update.");
return true;
}
else
{
// no update available
log.Debug("Versions match or the user's version is more advanced. Returning false to update.");
return false;
}
}
else
{
// update was unsuccessful or inactive
log.Warn("Update was not successful or the response JSON object was not active.");
// TODO: Do something here...
return false;
}
}
else
{
log.Warn("HTTP status was not OK.");
throw new System.Exception("...");
}
}
}
catch (System.Exception ex)
{
log.Error("An error occured during the check for an update.", ex);
throw ex;
}
}
