private static ServicePlan Compile(Dictionary <MethodInfo, MethodCallExpression> expressions, object serviceObject)
{
// step: collect all types, methods, variables referenced in this expression
var workerQueue = new Queue <KeyValuePair <MethodInfo, MethodCallExpression> >();
foreach (var exp in expressions)
{
workerQueue.Enqueue(new KeyValuePair <MethodInfo, MethodCallExpression>(exp.Key, exp.Value));
}
var contexts = new Dictionary <MethodInfo, QueryContext>();
while (workerQueue.Count > 0)
{
var exp = workerQueue.Dequeue();
var context = new QueryContext(serviceObject, exp.Value, exp.Key.Name);
context.Collect();
contexts.Add(exp.Key, context);
foreach (var s in context.ExternalComposedSerivce.Where(s => !contexts.ContainsKey(s.Key)))
{
workerQueue.Enqueue(new KeyValuePair <MethodInfo, MethodCallExpression>(s.Key, s.Value));
}
}
// step: prepare service plan
var codeGenerator = new CodeGenerator();
var name = serviceObject.GetType().Name + "." + codeGenerator.AppId;
var plan = new ServicePlan
{
DependentServices = contexts
.SelectMany(c => c.Value.Services.Select(r => r.Value))
.DistinctBy(s => s.Url)
.ToArray(),
Package = new ServicePackage()
};
SystemHelper.CreateOrCleanDirectory(name);
// step: generate composed service code
var sources = new HashSet <string>();
var libs = new HashSet <string>();
var dir = name + ".Source";
SystemHelper.CreateOrCleanDirectory(dir);
libs.Add(Path.Combine(Environment.GetEnvironmentVariable("DSN_ROOT"), "lib", "dsn.dev.csharp.dll"));
libs.Add(Path.Combine(Environment.GetEnvironmentVariable("DSN_ROOT"), "lib", "Thrift.dll"));
var code = codeGenerator.BuildRdsn(serviceObject.GetType(), contexts.Select(c => c.Value).ToArray());
SystemHelper.StringToFile(code, Path.Combine(dir, name + ".cs"));
sources.Add(Path.Combine(dir, name + ".cs"));
libs.UnionWith(QueryContext.KnownLibs);
// step: generate client code for all dependent services
foreach (var s in contexts
.SelectMany(c => c.Value.Services.Select(r => r.Value))
.DistinctBy(s => s.PackageName)
.Select(s => s.ExtractSpec()))
{
var provider = SpecProviderManager.Instance().GetProvider(s.SType);
Trace.Assert(null != provider, "Language provider missing for type " + s.SType);
LinkageInfo linkInfo;
var err = provider.GenerateServiceClient(s, dir, ClientLanguage.Client_CSharp, ClientPlatform.Windows, out linkInfo);
Trace.Assert(FlowErrorCode.Success == err);
sources.UnionWith(linkInfo.Sources);
libs.UnionWith(linkInfo.DynamicLibraries);
}
// step: fill service plan
plan.Package.Spec = new ServiceSpec
{
SType = ServiceSpecType.Thrift,
MainSpecFile = serviceObject.GetType().Name + ".thrift",
ReferencedSpecFiles = plan.DependentServices
.DistinctBy(s => s.PackageName)
.Where(s => s.Spec.SType == ServiceSpecType.Thrift)
.SelectMany(s =>
{
var spec = s.ExtractSpec();
var specFiles = new List <string> {
spec.MainSpecFile
};
SystemHelper.SafeCopy(Path.Combine(spec.Directory, spec.MainSpecFile),
Path.Combine(name, spec.MainSpecFile), false);
foreach (var ds in spec.ReferencedSpecFiles)
{
specFiles.Add(ds);
SystemHelper.SafeCopy(Path.Combine(spec.Directory, ds), Path.Combine(name, ds), false);
}
return(specFiles);
}
)
.Distinct()
.ToList(),
Directory = name
};
plan.Package.MainSpec = ServiceContract.GenerateStandAloneThriftSpec(serviceObject.GetType(), plan.Package.Spec.ReferencedSpecFiles);
SystemHelper.StringToFile(plan.Package.MainSpec, Path.Combine(name, plan.Package.Spec.MainSpecFile));
if (SystemHelper.RunProcess("php.exe", Path.Combine(Environment.GetEnvironmentVariable("DSN_ROOT"), "bin", "dsn.generate_code.php") + " " + Path.Combine(name, plan.Package.Spec.MainSpecFile) + " csharp " + dir + " json layer3") == 0)
{
sources.Add(Path.Combine(dir, serviceObject.GetType().Name + ".client.cs"));
sources.Add(Path.Combine(dir, serviceObject.GetType().Name + ".server.cs"));
sources.Add(Path.Combine(dir, "ThriftJsonHelper.cs"));
sources.Add(Path.Combine(dir, serviceObject.GetType().Name + ".main.composed.cs"));
sources.Add(Path.Combine(dir, serviceObject.GetType().Name + ".code.definition.cs"));
}
else
{
Console.Write("php codegen failed");
}
//grab thrift-generated files
sources.UnionWith(Directory.GetFiles(Path.Combine(dir, "thrift"), "*.cs", SearchOption.AllDirectories));
// step: generate composed service package
CSharpCompiler.ToDiskAssembly(sources.ToArray(), libs.ToArray(), new string[] { },
Path.Combine(name, name + ".exe"),
true,
true
);
libs.Add(Path.Combine(Environment.GetEnvironmentVariable("DSN_ROOT"), "lib", "dsn.core.dll"));
libs.Add(Path.Combine(Environment.GetEnvironmentVariable("DSN_ROOT"), "lib", "zookeeper_mt.dll"));
foreach (var lib in libs.Where(lib => !lib.StartsWith("System.")))
{
SystemHelper.SafeCopy(lib, Path.Combine(name, Path.GetFileName(lib)), false);
}
//Console.ReadKey();
return(plan);
}
