/// <summary>
/// Executes the upgrade.
/// </summary>
/// <param name="context">The context of the upgrade</param>
public void Execute(ISchemaUpgradeContext context)
{
Guard.NotNull(() => context, context);
tracer.Info(ShellResources.PatternModelSchemaUpgradeManager_TraceExecute, context.SchemaFilePath);
TraceSourceExtensions.Shield(tracer, () =>
{
if (context.UpgradeProcessors != null && context.UpgradeProcessors.Any())
{
// Order processors by declared 'Order' field
var upgradeProcessors = context.UpgradeProcessors.ToList()
.OrderBy(proc => proc.Metadata.Order);
// Trace all processors found
upgradeProcessors
.ForEach(proc =>
{
tracer.Verbose(
ShellResources.PatternModelSchemaUpgradeManager_TraceFoundUpgradeRule,
proc.Value.GetType(), proc.Metadata.TargetVersion, proc.Metadata.Order);
});
// Determine schema versions
var previousVersion = context.SchemaVersion;
var currentVersion = context.RuntimeVersion;
if (previousVersion < currentVersion)
{
// Query Processors
var processorsToExecute = new List <IPatternModelSchemaUpgradeProcessor>();
upgradeProcessors
.ForEach(proc =>
{
// Is this processor required to execute for this version of schema?
Version procVersion;
if (Version.TryParse(proc.Metadata.TargetVersion, out procVersion))
{
if (procVersion == previousVersion)
{
processorsToExecute.Add(proc.Value);
}
}
});
if (processorsToExecute.Any())
{
tracer.Verbose(
ShellResources.PatternModelSchemaUpgradeManager_TraceExecuteUpgradeProcessors, previousVersion, currentVersion);
// Initialize document
var document = context.OpenSchema();
// Backup original schema
context.BackupSchema();
// Execute processors
processorsToExecute.ForEach(proc =>
{
try
{
tracer.Info(ShellResources.PatternModelSchemaUpgradeManager_TraceExecuteUpgradeRule,
proc.GetType(), previousVersion);
proc.ProcessSchema(document);
}
catch (Exception ex)
{
tracer.Error(ShellResources.PatternModelSchemaUpgradeManager_ErrorUpgradeRuleFailed,
proc.GetType(), ex.Message);
throw;
}
});
}
// Update and save
if ((previousVersion < currentVersion) ||
context.UpgradeProcessors.Any(mp => mp.Value.IsModified))
{
// Upgrade schema version
context.SchemaVersion = currentVersion;
// Save migrated document
context.SaveSchema();
}
}
}
}, ShellResources.PatternModelSchemaUpgradeManager_ErrorUpgradeRulesFailed);
}
/// <summary>
/// Executes the upgrade.
/// </summary>
/// <param name="context">The context of the upgrade</param>
public void Execute(ISchemaUpgradeContext context)
{
Guard.NotNull(() => context, context);
tracer.Info(ShellResources.PatternModelSchemaUpgradeManager_TraceExecute, context.SchemaFilePath);
TraceSourceExtensions.Shield(tracer, () =>
{
if (context.UpgradeProcessors != null && context.UpgradeProcessors.Any())
{
// Order processors by declared 'Order' field
var upgradeProcessors = context.UpgradeProcessors.ToList()
.OrderBy(proc => proc.Metadata.Order);
// Trace all processors found
upgradeProcessors
.ForEach(proc =>
{
tracer.Verbose(
ShellResources.PatternModelSchemaUpgradeManager_TraceFoundUpgradeRule,
proc.Value.GetType(), proc.Metadata.TargetVersion, proc.Metadata.Order);
});
// Determine schema versions
var previousVersion = context.SchemaVersion;
var currentVersion = context.RuntimeVersion;
if (previousVersion < currentVersion)
{
// Query Processors
var processorsToExecute = new List<IPatternModelSchemaUpgradeProcessor>();
upgradeProcessors
.ForEach(proc =>
{
// Is this processor required to execute for this version of schema?
Version procVersion;
if (Version.TryParse(proc.Metadata.TargetVersion, out procVersion))
{
if (procVersion == previousVersion)
{
processorsToExecute.Add(proc.Value);
}
}
});
if (processorsToExecute.Any())
{
tracer.Verbose(
ShellResources.PatternModelSchemaUpgradeManager_TraceExecuteUpgradeProcessors, previousVersion, currentVersion);
// Initialize document
var document = context.OpenSchema();
// Backup original schema
context.BackupSchema();
// Execute processors
processorsToExecute.ForEach(proc =>
{
try
{
tracer.Info(ShellResources.PatternModelSchemaUpgradeManager_TraceExecuteUpgradeRule,
proc.GetType(), previousVersion);
proc.ProcessSchema(document);
}
catch (Exception ex)
{
tracer.Error(ShellResources.PatternModelSchemaUpgradeManager_ErrorUpgradeRuleFailed,
proc.GetType(), ex.Message);
throw;
}
});
}
// Update and save
if ((previousVersion < currentVersion)
|| context.UpgradeProcessors.Any(mp => mp.Value.IsModified))
{
// Upgrade schema version
context.SchemaVersion = currentVersion;
// Save migrated document
context.SaveSchema();
}
}
}
}, ShellResources.PatternModelSchemaUpgradeManager_ErrorUpgradeRulesFailed);
}
