private static string TransformParameters(IComponentContext ctx, string cfg)
{
var preProcess = new ConfigurationFacade.Process(
cfg,
new Dictionary <string, string>(),
new List <IDependency> {
ctx.Resolve <IReader>(),
new DateMathModifier(),
new ParameterModifier(new NullPlaceHolderReplacer()),
ctx.ResolveNamed <IDependency>(TransformModule.ParametersName)
}.ToArray());
if (!preProcess.Parameters.Any(pr => pr.Transforms.Any()))
{
return(null);
}
var fields = preProcess.Parameters.Select(pr => new Field {
Name = pr.Name,
Alias = pr.Name,
Default = pr.Value,
Type = pr.Type,
Transforms = pr.Transforms.Select(o => o.ToOperation()).ToList()
}).ToList();
var len = fields.Count;
var entity = new Entity {
Name = "Parameters", Alias = "Parameters", Fields = fields
};
var mini = new Process {
Name = "ParameterTransform",
ReadOnly = true,
Entities = new List <Entity> {
entity
},
Maps = preProcess.Maps.Select(m => m.ToMap()).ToList(), // for map transforms
Scripts = preProcess.Scripts.Select(s => s.ToScript()).ToList() // for transforms that use scripts (e.g. js)
};
mini.Load(); // very important to check after creating, as it runs validation and even modifies!
if (!mini.Errors().Any())
{
// modification in Load() do not make it out to local variables so overwrite them
fields = mini.Entities.First().Fields;
entity = mini.Entities.First();
var c = new PipelineContext(ctx.Resolve <IPipelineLogger>(), mini, entity);
var transforms = new List <ITransform> {
new Transforms.System.DefaultTransform(c, fields)
};
transforms.AddRange(TransformFactory.GetTransforms(ctx, c, fields));
// make an input out of the parameters
var input = new List <IRow>();
var row = new MasterRow(len);
for (var i = 0; i < len; i++)
{
row[fields[i]] = preProcess.Parameters[i].Value;
}
input.Add(row);
var output = transforms.Aggregate(input.AsEnumerable(), (rows, t) => t.Operate(rows)).ToList().First();
for (var i = 0; i < len; i++)
{
var parameter = preProcess.Parameters[i];
parameter.Value = output[fields[i]].ToString();
parameter.T = string.Empty;
parameter.Transforms.Clear();
}
return(preProcess.Serialize());
}
var context = new PipelineContext(ctx.Resolve <IPipelineLogger>(), mini, entity);
foreach (var error in mini.Errors())
{
context.Error(error);
}
return(null);
}
public ILifetimeScope CreateScope(Process process, IPipelineLogger logger)
{
var builder = new ContainerBuilder();
#if PLUGINS
builder.Properties["Process"] = process;
#endif
builder.Register(ctx => process).As <Process>();
builder.RegisterInstance(logger).As <IPipelineLogger>().SingleInstance();
// register short-hand for t attribute, allowing for additional transforms
var transformModule = new TransformModule(process, _methods, _shortHand, logger);
foreach (var t in _transforms)
{
transformModule.AddTransform(t);
}
builder.RegisterModule(transformModule);
// register short-hand for v attribute, allowing for additional validators
var validateModule = new ValidateModule(process, _methods, _shortHand, logger);
foreach (var v in _validators)
{
validateModule.AddValidator(v);
}
builder.RegisterModule(validateModule);
builder.RegisterModule(new InternalModule(process));
#if PLUGINS
// just in case other modules need to see these
builder.Properties["ShortHand"] = _shortHand;
builder.Properties["Methods"] = _methods;
#endif
// allowing for additional modules
foreach (var module in _modules)
{
builder.RegisterModule(module);
}
// Process Context
builder.Register <IContext>((ctx, p) => new PipelineContext(logger, process)).As <IContext>();
// Process Output Context
builder.Register(ctx => {
var context = ctx.Resolve <IContext>();
return(new OutputContext(context));
}).As <OutputContext>();
// Connection and Process Level Output Context
foreach (var connection in process.Connections)
{
builder.Register(ctx => new ConnectionContext(ctx.Resolve <IContext>(), connection)).Named <IConnectionContext>(connection.Key);
if (connection.Name != "output")
{
continue;
}
// register output for connection
builder.Register(ctx => {
var context = ctx.ResolveNamed <IConnectionContext>(connection.Key);
return(new OutputContext(context));
}).Named <OutputContext>(connection.Key);
}
// Entity Context and RowFactory
foreach (var entity in process.Entities)
{
builder.Register <IContext>((ctx, p) => new PipelineContext(ctx.Resolve <IPipelineLogger>(), process, entity)).Named <IContext>(entity.Key);
builder.Register(ctx => {
var context = ctx.ResolveNamed <IContext>(entity.Key);
return(new InputContext(context));
}).Named <InputContext>(entity.Key);
builder.Register <IRowFactory>((ctx, p) => new RowFactory(p.Named <int>("capacity"), entity.IsMaster, false)).Named <IRowFactory>(entity.Key);
builder.Register(ctx => {
var context = ctx.ResolveNamed <IContext>(entity.Key);
return(new OutputContext(context));
}).Named <OutputContext>(entity.Key);
var connection = process.Connections.First(c => c.Name == entity.Connection);
builder.Register(ctx => new ConnectionContext(ctx.Resolve <IContext>(), connection)).Named <IConnectionContext>(entity.Key);
}
// entity pipelines
foreach (var entity in process.Entities)
{
builder.Register(ctx => {
var type = process.Pipeline == "defer" ? entity.Pipeline : process.Pipeline;
var context = ctx.ResolveNamed <IContext>(entity.Key);
context.Debug(() => $"Registering {type} for entity {entity.Alias}.");
var outputController = ctx.IsRegisteredWithName <IOutputController>(entity.Key) ? ctx.ResolveNamed <IOutputController>(entity.Key) : new NullOutputController();
var pipeline = new DefaultPipeline(outputController, context);
// TODO: rely on IInputProvider's Read method instead (after every provider has one)
pipeline.Register(ctx.IsRegisteredWithName(entity.Key, typeof(IRead)) ? ctx.ResolveNamed <IRead>(entity.Key) : null);
pipeline.Register(ctx.IsRegisteredWithName(entity.Key, typeof(IInputProvider)) ? ctx.ResolveNamed <IInputProvider>(entity.Key) : null);
// transforms
if (!process.ReadOnly)
{
pipeline.Register(new SetSystemFields(new PipelineContext(ctx.Resolve <IPipelineLogger>(), process, entity)));
}
pipeline.Register(new IncrementTransform(context));
pipeline.Register(new DefaultTransform(context, context.GetAllEntityFields().Where(f => !f.System)));
pipeline.Register(TransformFactory.GetTransforms(ctx, context, entity.GetAllFields().Where(f => f.Transforms.Any())));
pipeline.Register(ValidateFactory.GetValidators(ctx, context, entity.GetAllFields().Where(f => f.Validators.Any())));
if (!process.ReadOnly)
{
pipeline.Register(new StringTruncateTransfom(new PipelineContext(ctx.Resolve <IPipelineLogger>(), process, entity)));
}
pipeline.Register(new LogTransform(context));
// writer, TODO: rely on IOutputProvider instead
pipeline.Register(ctx.IsRegisteredWithName(entity.Key, typeof(IWrite)) ? ctx.ResolveNamed <IWrite>(entity.Key) : null);
pipeline.Register(ctx.IsRegisteredWithName(entity.Key, typeof(IOutputProvider)) ? ctx.ResolveNamed <IOutputProvider>(entity.Key) : null);
// updater
pipeline.Register(process.ReadOnly || !ctx.IsRegisteredWithName(entity.Key, typeof(IUpdate)) ? new NullUpdater() : ctx.ResolveNamed <IUpdate>(entity.Key));
return(pipeline);
}).Named <IPipeline>(entity.Key);
}
// process pipeline
builder.Register(ctx => {
var calc = process.ToCalculatedFieldsProcess();
var entity = calc.Entities.First();
var context = new PipelineContext(ctx.Resolve <IPipelineLogger>(), calc, entity);
var outputContext = new OutputContext(context);
context.Debug(() => $"Registering {process.Pipeline} pipeline.");
var outputController = ctx.IsRegistered <IOutputController>() ? ctx.Resolve <IOutputController>() : new NullOutputController();
var pipeline = new DefaultPipeline(outputController, context);
// no updater necessary
pipeline.Register(new NullUpdater(context, false));
if (!process.CalculatedFields.Any())
{
pipeline.Register(new NullReader(context, false));
pipeline.Register(new NullWriter(context, false));
return(pipeline);
}
// register transforms
pipeline.Register(new IncrementTransform(context));
pipeline.Register(new LogTransform(context));
pipeline.Register(new DefaultTransform(new PipelineContext(ctx.Resolve <IPipelineLogger>(), calc, entity), entity.CalculatedFields));
pipeline.Register(TransformFactory.GetTransforms(ctx, context, entity.CalculatedFields));
pipeline.Register(ValidateFactory.GetValidators(ctx, context, entity.GetAllFields().Where(f => f.Validators.Any())));
pipeline.Register(new StringTruncateTransfom(new PipelineContext(ctx.Resolve <IPipelineLogger>(), calc, entity)));
// register input and output
pipeline.Register(ctx.IsRegistered <IRead>() ? ctx.Resolve <IRead>() : new NullReader(context));
pipeline.Register(ctx.IsRegistered <IWrite>() ? ctx.Resolve <IWrite>() : new NullWriter(context));
if (outputContext.Connection.Provider == "sqlserver")
{
pipeline.Register(new MinDateTransform(new PipelineContext(ctx.Resolve <IPipelineLogger>(), calc, entity), new DateTime(1753, 1, 1)));
}
return(pipeline);
}).As <IPipeline>();
// process controller
builder.Register <IProcessController>(ctx => {
var pipelines = new List <IPipeline>();
// entity-level pipelines
foreach (var entity in process.Entities)
{
var pipeline = ctx.ResolveNamed <IPipeline>(entity.Key);
pipelines.Add(pipeline);
if (entity.Delete && process.Mode != "init")
{
pipeline.Register(ctx.ResolveNamed <IEntityDeleteHandler>(entity.Key));
}
}
// process-level pipeline for process level calculated fields
if (ctx.IsRegistered <IPipeline>())
{
pipelines.Add(ctx.Resolve <IPipeline>());
}
var context = ctx.Resolve <IContext>();
var controller = new ProcessController(pipelines, context);
// output initialization
if (process.Mode == "init" && ctx.IsRegistered <IInitializer>())
{
controller.PreActions.Add(ctx.Resolve <IInitializer>());
}
// flatten(ing) is first post-action
var isAdo = Constants.AdoProviderSet().Contains(process.Output().Provider);
if (process.Flatten && isAdo)
{
if (ctx.IsRegisteredWithName <IAction>(process.Output().Key))
{
controller.PostActions.Add(ctx.ResolveNamed <IAction>(process.Output().Key));
}
else
{
context.Error($"Could not find ADO Flatten Action for provider {process.Output().Provider}.");
}
}
// actions
foreach (var action in process.Actions.Where(a => a.GetModes().Any(m => m == process.Mode || m == "*")))
{
if (action.Before)
{
controller.PreActions.Add(ctx.ResolveNamed <IAction>(action.Key));
}
if (action.After)
{
controller.PostActions.Add(ctx.ResolveNamed <IAction>(action.Key));
}
}
return(controller);
}).As <IProcessController>();
var build = builder.Build();
return(build.BeginLifetimeScope());
}