/// <summary>
/// It is used to check whether database exists or not.
/// </summary>
protected static void DoesDatabaseExists()
{
ApplicationDescriptor applicationDescriptor = coreResourceManager.GetApplicationDescriptor();
IEnumerator <DatabaseDescriptor> databaseDescriptors = applicationDescriptor.GetDatabaseDescriptors();
bool databaseExists = true;
while (databaseDescriptors.MoveNext())
{
DatabaseDescriptor databaseDescriptor = databaseDescriptors.Current;
String databasePath = new DatabaseUtils().GetDatabasePath(databaseDescriptor);
String databaseName = databaseDescriptor.GetDatabaseName();
if (!databaseName.EndsWith(".db"))
{
databaseName = databaseName + ".db";
}
bool fileExists = FileUtils.DoesFileExists(databasePath, databaseName, FileUtils.LOCAL_FOLDER);
if (!fileExists)
{
databaseExists = false;
}
}
if (!databaseExists)
{
firstTimeProcessed = true;
}
else
{
firstTimeProcessed = false;
}
}
/// <summary>
/// Parse the entity descriptor descriptor defined
/// </summary>
/// <exception cref="Siminov.Core.Exception.SiminovException">Any exception during parsing the descriptor file</exception>
public void Process()
{
ApplicationDescriptor applicationDescriptor = resourceManager.GetApplicationDescriptor();
if (applicationDescriptor == null)
{
Log.Log.Error(typeof(QuickEntityDescriptorReader).FullName, "Process", "Invalid Application Descriptor Found");
throw new DeploymentException(typeof(QuickEntityDescriptorReader).FullName, "Process", "Invalid Application Descriptor Found.");
}
if (!applicationDescriptor.IsDatabaseNeeded())
{
doesMatch = false;
return;
}
IEnumerator <DatabaseDescriptor> databaseDescriptors = applicationDescriptor.GetDatabaseDescriptors();
while (databaseDescriptors.MoveNext())
{
DatabaseDescriptor databaseDescriptor = databaseDescriptors.Current;
IEnumerator <String> entityDescriptors = databaseDescriptor.GetEntityDescriptorPaths();
while (entityDescriptors.MoveNext())
{
String entityDescriptorPath = entityDescriptors.Current;
Stream entityDescriptorStream = null;
try
{
ParseMessage(entityDescriptorStream);
}
catch (SiminovException exception)
{
Log.Log.Error(typeof(QuickEntityDescriptorReader).FullName, "Process", "Exception caught while parsing ENTITY-DESCRIPTOR: " + entityDescriptorPath + ", " + exception.GetMessage());
throw new SiminovException(typeof(QuickEntityDescriptorReader).FullName, "Process", "Exception caught while parsing ENTITY-DESCRIPTOR: " + entityDescriptorPath + ", " + exception.GetMessage());
}
if (doesMatch)
{
EntityDescriptorReader entityDescriptorParser = new EntityDescriptorReader(entityDescriptorPath);
this.entityDescriptor = entityDescriptorParser.GetEntityDescriptor();
databaseDescriptor.AddEntityDescriptor(entityDescriptorPath, entityDescriptor);
return;
}
}
}
}
/// <summary>
/// It process all LibraryDescriptor.xml files defined by application, and stores in Resource Manager.
/// </summary>
protected static void ProcessLibraries()
{
ApplicationDescriptor applicationDescriptor = coreResourceManager.GetApplicationDescriptor();
IEnumerator <String> libraries = applicationDescriptor.GetLibraryDescriptorPaths();
while (libraries.MoveNext())
{
String library = libraries.Current;
/*
* Parse LibraryDescriptor.
*/
LibraryDescriptorReader libraryDescriptorReader = new LibraryDescriptorReader(library);
LibraryDescriptor libraryDescriptor = libraryDescriptorReader.GetLibraryDescriptor();
/*
* Map Entity Descriptors
*/
IEnumerator <String> entityDescriptors = libraryDescriptor.GetEntityDescriptorPaths();
while (entityDescriptors.MoveNext())
{
String libraryEntityDescriptorPath = entityDescriptors.Current;
String databaseDescriptorName = libraryEntityDescriptorPath.Substring(0, libraryEntityDescriptorPath.IndexOf(Constants.LIBRARY_DESCRIPTOR_ENTITY_DESCRIPTOR_SEPRATOR));
String entityDescriptor = libraryEntityDescriptorPath.Substring(libraryEntityDescriptorPath.IndexOf(Constants.LIBRARY_DESCRIPTOR_ENTITY_DESCRIPTOR_SEPRATOR) + 1, ((libraryEntityDescriptorPath.Length - libraryEntityDescriptorPath.IndexOf(Constants.LIBRARY_DESCRIPTOR_ENTITY_DESCRIPTOR_SEPRATOR)) - 1));
IEnumerator <DatabaseDescriptor> databaseDescriptors = applicationDescriptor.GetDatabaseDescriptors();
while (databaseDescriptors.MoveNext())
{
DatabaseDescriptor databaseDescriptor = databaseDescriptors.Current;
if (databaseDescriptor.GetDatabaseName().Equals(databaseDescriptorName, StringComparison.OrdinalIgnoreCase))
{
databaseDescriptor.AddEntityDescriptorPath(library.Replace(".", "/") + FileUtils.Separator + entityDescriptor);
}
}
}
}
}
/// <summary>
/// It process all EntityDescriptor.xml file defined in Application, and stores in Resource Manager.
/// </summary>
protected static void ProcessEntityDescriptors()
{
DoesDatabaseExists();
ApplicationDescriptor applicationDescriptor = coreResourceManager.GetApplicationDescriptor();
IEnumerator <DatabaseDescriptor> databaseDescriptors = applicationDescriptor.GetDatabaseDescriptors();
while (databaseDescriptors.MoveNext())
{
DatabaseDescriptor databaseDescriptor = databaseDescriptors.Current;
IEnumerator <String> entityDescriptorPaths = databaseDescriptor.GetEntityDescriptorPaths();
while (entityDescriptorPaths.MoveNext())
{
String entityDescriptorPath = entityDescriptorPaths.Current;
EntityDescriptorReader entityDescriptorParser = new EntityDescriptorReader(entityDescriptorPath);
databaseDescriptor.AddEntityDescriptor(entityDescriptorPath, entityDescriptorParser.GetEntityDescriptor());
}
}
}
/// <summary>
/// It process all DatabaseDescriptor.xml and initialize Database and stores in Resource Manager.
/// </summary>
protected static void ProcessDatabase()
{
ApplicationDescriptor applicationDescriptor = coreResourceManager.GetApplicationDescriptor();
IEnumerator <DatabaseDescriptor> databaseDescriptors = applicationDescriptor.GetDatabaseDescriptors();
while (databaseDescriptors.MoveNext())
{
DatabaseDescriptor databaseDescriptor = databaseDescriptors.Current;
String databasePath = new DatabaseUtils().GetDatabasePath(databaseDescriptor);
DatabaseBundle databaseBundle = null;
try
{
databaseBundle = DatabaseHelper.CreateDatabase(databaseDescriptor);
}
catch (DatabaseException databaseException)
{
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while getting database instance from database factory, DATABASE-DESCRIPTOR: " + databaseDescriptor.GetDatabaseName() + ", " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
IDatabaseImpl database = databaseBundle.GetDatabase();
IQueryBuilder queryBuilder = databaseBundle.GetQueryBuilder();
/*
* If Database exists then open and return.
* If Database does not exists create the database.
*/
String databaseName = databaseDescriptor.GetDatabaseName();
if (!databaseName.EndsWith(".db"))
{
databaseName = databaseName + ".db";
}
bool fileExists = FileUtils.DoesFileExists(databasePath, databaseName, FileUtils.LOCAL_FOLDER);
if (fileExists)
{
/*
* Open Database
*/
try
{
database.OpenOrCreate(databaseDescriptor);
}
catch (DatabaseException databaseException)
{
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while opening database, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
/*
* Enable Foreign Key Constraints
*/
try
{
database.ExecuteQuery(databaseDescriptor, null, Constants.SQLITE_DATABASE_QUERY_TO_ENABLE_FOREIGN_KEYS_MAPPING);
}
catch (DatabaseException databaseException)
{
FileUtils.DeleteFile(databasePath, databaseDescriptor.GetDatabaseName(), FileUtils.LOCAL_FOLDER);
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while executing query to enable foreign keys, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
/*
* Safe MultiThread Transaction
*/
/*try
* {
* database.ExecuteMethod(Constants.SQLITE_DATABASE_ENABLE_LOCKING, databaseDescriptor.IsTransactionSafe());
* }
* catch (DatabaseException databaseException)
* {
* FileUtils.DoesFileExists(databasePath, databaseDescriptor.GetDatabaseName(), FileUtils.LOCAL_FOLDER);
*
* Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while enabling locking on database, " + databaseException.GetMessage());
* throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
* }*/
/*
* Upgrade Database
*/
try
{
DatabaseHelper.UpgradeDatabase(databaseDescriptor);
}
catch (DatabaseException databaseException)
{
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while upgrading database, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
}
else
{
/*
* Create Database Directory
*/
try
{
FileUtils.GetFolder(databasePath, FileUtils.LOCAL_FOLDER);
}
catch (System.Exception exception)
{
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "Exception caught while creating database directories, DATABASE-PATH: " + databasePath + ", DATABASE-DESCRIPTOR: " + databaseDescriptor.GetDatabaseName() + ", " + exception.Message);
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", exception.Message);
}
/*
* Create Database File.
*/
try
{
database.OpenOrCreate(databaseDescriptor);
}
catch (DatabaseException databaseException)
{
FileUtils.DeleteFile(databasePath, databaseDescriptor.GetDatabaseName(), FileUtils.LOCAL_FOLDER);
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while creating database, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
/*
* Set Database Version
*/
IDictionary <String, Object> parameters = new Dictionary <String, Object>();
parameters.Add(IQueryBuilder.FORM_UPDATE_DATABASE_VERSION_QUERY_DATABASE_VERSION_PARAMETER, databaseDescriptor.GetVersion());
try
{
String updateDatabaseVersionQuery = queryBuilder.FormUpdateDatabaseVersionQuery(parameters);
database.ExecuteQuery(databaseDescriptor, null, updateDatabaseVersionQuery);
}
catch (DatabaseException databaseException)
{
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "Database Exception caught while updating database version, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
IDatabaseEvents databaseEventHandler = coreResourceManager.GetDatabaseEventHandler();
if (databaseEventHandler != null)
{
databaseEventHandler.OnDatabaseCreated(databaseDescriptor);
}
/*
* Enable Foreign Key Constraints
*/
try
{
database.ExecuteQuery(databaseDescriptor, null, Constants.SQLITE_DATABASE_QUERY_TO_ENABLE_FOREIGN_KEYS_MAPPING);
}
catch (DatabaseException databaseException)
{
FileUtils.DeleteFile(databasePath, databaseDescriptor.GetDatabaseName(), FileUtils.LOCAL_FOLDER);
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while executing query to enable foreign keys, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
/*
* Safe MultiThread Transaction
*/
/*try
* {
* database.ExecuteMethod(Constants.SQLITE_DATABASE_ENABLE_LOCKING, databaseDescriptor.IsTransactionSafe());
* }
* catch (DatabaseException databaseException)
* {
* FileUtils.DeleteFile(databasePath, databaseDescriptor.GetDatabaseName(), FileUtils.LOCAL_FOLDER);
*
* Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while enabling locking on database, " + databaseException.GetMessage());
* throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
* }*/
/*
* Create Tables
*/
try
{
DatabaseHelper.CreateTables(databaseDescriptor.OrderedEntityDescriptors());
}
catch (DatabaseException databaseException)
{
FileUtils.DeleteFile(databasePath, databaseDescriptor.GetDatabaseName(), FileUtils.LOCAL_FOLDER);
Log.Log.Error(typeof(Siminov).FullName, "ProcessDatabase", "DatabaseException caught while creating tables, " + databaseException.GetMessage());
throw new DeploymentException(typeof(Siminov).FullName, "ProcessDatabase", databaseException.GetMessage());
}
}
}
}