208 lines
6.7 KiB
C#
208 lines
6.7 KiB
C#
/*
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* vexillographer.cs
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Xml.Linq;
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using System.Text;
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using System.IO;
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namespace vexillographer
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{
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public enum Scope
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{
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NetworkOption,
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ClusterOption,
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DatabaseOption,
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TransactionOption,
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StreamingMode,
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MutationType,
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ConflictRangeType,
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ErrorPredicate
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}
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public enum ParamType
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{
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None,
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String,
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Int,
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Bytes
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}
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class Option
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{
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public Scope scope { get; set; }
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public string name { get; set; }
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public ParamType paramType { get; set; }
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public string paramDesc { get; set; }
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public int code { get; set; }
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public bool hidden { get; set; }
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private string _comment;
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public string comment {
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get {
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return _comment == null ? "" : _comment;
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}
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set {
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_comment = value;
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}
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}
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public bool isDeprecated() { return comment.StartsWith("Deprecated"); }
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public string getParameterComment()
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{
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return paramDesc == null ? "Option takes no parameter" : string.Format("({0}) {1}", paramType.ToString(), paramDesc);
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}
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}
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interface BindingWriter
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{
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void writeFiles(string outputFile, IEnumerable<Option> options);
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}
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static class vexillographer
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{
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static int Main(string[] args)
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{
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if (args.Length < 3)
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{
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usage();
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return 1;
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}
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IEnumerable<Option> options;
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int result = parseOptions(args[0], out options, args[1]);
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if (result != 0)
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return result;
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BindingWriter writer;
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try
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{
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Type t = Type.GetType("vexillographer." + args[1]);
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writer = (BindingWriter)Activator.CreateInstance(t);
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}
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catch (Exception e)
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{
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Console.Error.WriteLine(string.Format("Could not load language binding for `{0}'", args[1]));
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Console.Error.WriteLine(e.StackTrace);
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usage();
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return 31;
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}
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writer.writeFiles(args[2], options);
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return 0;
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}
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private static void usage()
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{
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Console.WriteLine("{0} inputFile {{c,cpp,java,ruby,python}} <outputDirectory/outputFile>",
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Environment.GetCommandLineArgs()[0]);
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}
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private static int parseOptions(string path, out IEnumerable<Option> options, string binding)
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{
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var list = new List<Option>();
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try
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{
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var optionsDoc = XDocument.Load(path).Element("Options");
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foreach (var scopeDoc in optionsDoc.Elements("Scope"))
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{
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var scopeName = scopeDoc.Attribute("name").Value;
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Scope s = (Scope)Enum.Parse(typeof(Scope), scopeName);
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foreach (var oDoc in scopeDoc.Elements("Option"))
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{
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var paramTypeStr = oDoc.AttributeOrNull("paramType");
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ParamType p = paramTypeStr == null ? ParamType.None : (ParamType)Enum.Parse(typeof(ParamType), paramTypeStr);
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bool hidden = oDoc.AttributeOrNull("hidden") == "true";
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string disableOn = oDoc.AttributeOrNull("disableOn");
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bool disabled = false;
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if(disableOn != null)
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{
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string[] disabledBindings = disableOn.Split(',');
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disabled = disabledBindings.Contains(binding);
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}
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if (!disabled)
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{
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list.Add(new Option
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{
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scope = s,
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name = oDoc.AttributeNonNull("name"),
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code = int.Parse(oDoc.AttributeNonNull("code")),
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paramType = p,
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paramDesc = oDoc.AttributeOrNull("paramDescription"),
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comment = oDoc.AttributeOrNull("description"),
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hidden = hidden
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});
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}
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}
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}
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options = list;
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return 0;
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}
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catch (Exception)
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{
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options = null;
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return 1;
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}
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}
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public static string getDescription(this Scope s)
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{
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switch (s)
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{
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case Scope.NetworkOption:
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return "NET_OPTION";
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case Scope.ClusterOption:
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return "CLUSTER_OPTION";
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case Scope.DatabaseOption:
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return "DB_OPTION";
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case Scope.TransactionOption:
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return "TR_OPTION";
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case Scope.StreamingMode:
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return "STREAMING_MODE";
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case Scope.MutationType:
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return "MUTATION_TYPE";
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case Scope.ConflictRangeType:
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return "CONFLICT_RANGE_TYPE";
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case Scope.ErrorPredicate:
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return "ERROR_PREDICATE";
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}
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throw new Exception("Enum type unknown");
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}
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public static string AttributeOrNull(this XElement e, string name)
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{
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var attr = e.Attribute(name);
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return attr == null ? null : attr.Value;
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}
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public static string AttributeNonNull(this XElement e, string name)
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{
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var attr = e.Attribute(name);
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if (attr == null)
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throw new Exception(string.Format("Option attribute {0} must exist and have a value", name));
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return attr.Value;
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}
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}
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}
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