using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using com.github.javaparser;
using com.github.javaparser.ast;
using com.github.javaparser.ast.body;
using JavaToCSharp.Declarations;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
namespace JavaToCSharp
{
public static class JavaToCSharpConverter
{
public static string ConvertText(string javaText, JavaConversionOptions options = null)
{
if (options == null)
options = new JavaConversionOptions();
options.ConversionStateChanged(ConversionState.Starting);
var context = new ConversionContext(options);
var textBytes = Encoding.UTF8.GetBytes(javaText ?? string.Empty);
using (var stringreader = new MemoryStream(textBytes))
using (var wrapper = new ikvm.io.InputStreamWrapper(stringreader))
{
options.ConversionStateChanged(ConversionState.ParsingJavaAST);
var parsed = JavaParser.parse(wrapper);
options.ConversionStateChanged(ConversionState.BuildingCSharpAST);
var types = parsed.getTypes().ToList();
var imports = parsed.getImports().ToList();
var package = parsed.getPackage();
var usings = new List();
//foreach (var import in imports)
//{
// var usingSyntax = SyntaxFactory.UsingDirective(SyntaxFactory.ParseName(import.getName().toString()));
// usings.Add(usingSyntax);
//}
if (options.IncludeUsings)
{
foreach (var ns in options.Usings.Where(x => !string.IsNullOrWhiteSpace(x)))
{
var usingSyntax = SyntaxFactory.UsingDirective(SyntaxFactory.ParseName(ns));
usings.Add(usingSyntax);
}
}
var rootMembers = new List();
NamespaceDeclarationSyntax namespaceSyntax = null;
if (options.IncludeNamespace)
{
string packageName = package?.getName()?.toString() ?? "MyApp";
foreach (var packageReplacement in options.PackageReplacements)
{
packageName = packageReplacement.Replace(packageName);
}
packageName = TypeHelper.Capitalize(packageName);
namespaceSyntax = SyntaxFactory.NamespaceDeclaration(SyntaxFactory.ParseName(packageName));
}
foreach (var type in types)
{
if (type is ClassOrInterfaceDeclaration)
{
var classOrIntType = type as ClassOrInterfaceDeclaration;
if (classOrIntType.isInterface())
{
var interfaceSyntax = ClassOrInterfaceDeclarationVisitor.VisitInterfaceDeclaration(context, classOrIntType, false);
if (options.IncludeNamespace)
namespaceSyntax = namespaceSyntax.AddMembers(interfaceSyntax);
else
rootMembers.Add(interfaceSyntax);
}
else
{
var classSyntax = ClassOrInterfaceDeclarationVisitor.VisitClassDeclaration(context, classOrIntType, false);
if (options.IncludeNamespace)
namespaceSyntax = namespaceSyntax.AddMembers(classSyntax);
else
rootMembers.Add(classSyntax);
}
}
}
if (options.IncludeNamespace)
rootMembers.Add(namespaceSyntax);
var root = SyntaxFactory.CompilationUnit(
externs: new SyntaxList(),
usings: SyntaxFactory.List(usings.ToArray()),
attributeLists: new SyntaxList(),
members: SyntaxFactory.List(rootMembers))
.NormalizeWhitespace();
var tree = SyntaxFactory.SyntaxTree(root);
options.ConversionStateChanged(ConversionState.Done);
return tree.GetText().ToString();
}
}
}
}