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//
// TaskDatabase.cs: Provides information about tasks.
//
// Author:
// Marek Sieradzki (marek.sieradzki@gmail.com)
//
// (C) 2005 Marek Sieradzki
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#if NET_2_0
using System;
using System.Collections.Generic;
using System.Reflection;
using Microsoft.Build.Framework;
using Mono.XBuild.Framework;
namespace Microsoft.Build.BuildEngine {
internal class TaskDatabase {
Dictionary<string, UsingTaskInfo> usingTasksByFullName;
// full name -> AssemblyLoadInfo
Dictionary <string, AssemblyLoadInfo> assemblyInformation;
// full name -> Type
Dictionary <string, Type> typesByFullName;
// short name -> Type
Dictionary <string, Type> typesByShortName;
public TaskDatabase ()
{
assemblyInformation = new Dictionary <string, AssemblyLoadInfo> ();
typesByFullName = new Dictionary <string, Type> (StringComparer.InvariantCultureIgnoreCase);
typesByShortName = new Dictionary <string, Type> (StringComparer.InvariantCultureIgnoreCase);
usingTasksByFullName = new Dictionary <string, UsingTaskInfo> (StringComparer.InvariantCultureIgnoreCase);
}
public void RegisterTask (string classname, AssemblyLoadInfo assemblyLoadInfo)
{
assemblyInformation.Add (classname, assemblyLoadInfo);
Assembly assembly;
if (assemblyLoadInfo.InfoType == LoadInfoType.AssemblyFilename)
assembly = Assembly.LoadFrom (assemblyLoadInfo.Filename);
else if (assemblyLoadInfo.InfoType == LoadInfoType.AssemblyName)
assembly = Assembly.Load (assemblyLoadInfo.AssemblyName);
else
assembly = Assembly.Load (assemblyLoadInfo.AssemblyNameString);
Type type = assembly.GetType (classname);
if (type == null) {
// search for matching class in case namespace was not used
foreach (Type exportedType in assembly.GetExportedTypes()) {
if (exportedType.Name == classname) {
type = exportedType;
break;
}
}
}
typesByFullName.Add (classname, type);
typesByShortName [GetShortName (classname)] = type;
}
public void RegisterUsingTask (UsingTask ut)
{
usingTasksByFullName [ut.TaskName] = new UsingTaskInfo (GetShortName (ut.TaskName), ut);
}
public Type GetTypeFromClassName (string classname)
{
Type ret = GetTypeFromClassNameInternal (classname);
if (ret == null) {
// Task not already loaded,
// Check list of pending UsingTasks
bool is_shortname = classname.IndexOf ('.') < 0;
UsingTaskInfo info = new UsingTaskInfo (String.Empty, null);
if (is_shortname) {
// Linear search UsingTaskInfo objects for short name match
foreach (UsingTaskInfo ut_info in usingTasksByFullName.Values) {
if (String.Compare (ut_info.ShortName, classname, true) == 0) {
info = ut_info;
break;
}
}
if (info.Task == null)
ThrowTaskNotRegistered (classname);
} else {
// Look for full name match
if (!usingTasksByFullName.TryGetValue (classname, out info))
ThrowTaskNotRegistered (classname);
}
usingTasksByFullName.Remove (info.Task.TaskName);
info.Task.Load (this);
ret = GetTypeFromClassNameInternal (classname);
}
if (ret == null)
ThrowTaskNotRegistered (classname);
return ret;
}
Type GetTypeFromClassNameInternal (string classname)
{
if (!typesByFullName.ContainsKey (classname)) {
if (!typesByShortName.ContainsKey (classname))
return null;
else
return typesByShortName [classname];
} else
return typesByFullName [classname];
}
public void CopyTasks (TaskDatabase taskDatabase)
{
foreach (KeyValuePair <string, AssemblyLoadInfo> kvp in taskDatabase.assemblyInformation)
assemblyInformation.Add (kvp.Key, kvp.Value);
foreach (KeyValuePair <string, Type> kvp in taskDatabase.typesByFullName)
typesByFullName.Add (kvp.Key, kvp.Value);
foreach (KeyValuePair <string, Type> kvp in taskDatabase.typesByShortName)
typesByShortName.Add (kvp.Key, kvp.Value);
foreach (KeyValuePair <string, UsingTaskInfo> kvp in taskDatabase.usingTasksByFullName)
usingTasksByFullName.Add (kvp.Key, kvp.Value);
}
private string GetShortName (string fullname)
{
string[] parts = fullname.Split ('.');
return parts [parts.Length - 1];
}
void ThrowTaskNotRegistered (string classname)
{
throw new Exception (String.Format ("Not registered task {0}.", classname));
}
}
struct UsingTaskInfo {
public string ShortName;
public UsingTask Task;
public UsingTaskInfo (string shortname, UsingTask task)
{
ShortName = shortname;
Task = task;
}
}
}
#endif
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