2007-11-14 Atsushi Enomoto <atsushi@ximian.com>
[mono.git] / mcs / class / System.Configuration / System.Configuration / Configuration.cs
index 7660f0287462d77739659a3dad06ff279a0674f7..9f6a3ae117511a6d8f2c1030543d4a3fb9d25616 100644 (file)
@@ -47,13 +47,18 @@ namespace System.Configuration {
                SectionGroupInfo rootGroup;
                IConfigSystem system;
                bool hasFile;
+               string rootNamespace;
                
                string configPath;
                string locationConfigPath;
-                       
-               internal Configuration (Configuration parent)
+               string locationSubPath;
+
+               internal Configuration (Configuration parent, string locationSubPath)
                {
-                       Init (parent.system, null, parent);
+                       this.parent = parent;
+                       this.system = parent.system;
+                       this.rootGroup = parent.rootGroup;
+                       this.locationSubPath = locationSubPath;
                }
                
                internal Configuration (InternalConfigurationSystem system, string locationSubPath)
@@ -108,7 +113,7 @@ namespace System.Configuration {
                                rootGroup.StreamName = streamName;
                        }
                        
-                       if (configPath != null)
+                       if (streamName != null)
                                Load ();
                }
                
@@ -137,6 +142,19 @@ namespace System.Configuration {
                        get { return locationConfigPath; }
                }
 
+               internal string GetLocationSubPath ()
+               {
+                       Configuration confg = parent;
+                       string path = null;
+                       while (confg != null) {
+                               path = confg.locationSubPath;
+                               if (!String.IsNullOrEmpty (path))
+                                       return path;
+                               confg = confg.parent;
+                       }
+                       return path;
+               }
+
                internal string ConfigPath {
                        get { return configPath; }
                }
@@ -149,8 +167,15 @@ namespace System.Configuration {
                        get { return (ConnectionStringsSection) GetSection ("connectionStrings"); }
                }
 
+               // MSDN: If the value for this FilePath property represents a merged view and 
+               // no actual file exists for the application, the path to the parent configuration 
+               // file is returned.
                public string FilePath {
-                       get { return streamName; }
+                       get {
+                               if (streamName == null && parent != null)
+                                       return parent.FilePath;
+                               return streamName;
+                       }
                }
 
                public bool HasFile {
@@ -159,12 +184,15 @@ namespace System.Configuration {
                        }
                }
 
-               [MonoTODO ("HostingContext")]
                ContextInformation evaluationContext;
                public ContextInformation EvaluationContext {
                        get {
-                               if (evaluationContext == null)
-                                       evaluationContext = new ContextInformation (this, null /* XXX */);
+                               if (evaluationContext == null) {
+                                       object ctx = system.Host.CreateConfigurationContext (configPath, GetLocationSubPath() );
+                                       evaluationContext = new ContextInformation (this, ctx);
+                               }
+
+
                                return evaluationContext;
                        }
                }
@@ -176,14 +204,9 @@ namespace System.Configuration {
                        }
                }
 
-               [MonoTODO]
                public bool NamespaceDeclared {
-                       get {
-                               throw new NotImplementedException ();
-                       }
-                       set {
-                               throw new NotImplementedException ();
-                       }
+                       get { return rootNamespace != null; }
+                       set { rootNamespace = value ? "http://schemas.microsoft.com/.NetConfiguration/v2.0" : null; }
                }
 
                public ConfigurationSectionGroup RootSectionGroup {
@@ -235,19 +258,24 @@ namespace System.Configuration {
                        ConfigurationSection sec = data as ConfigurationSection;
                        if (sec != null || !createDefaultInstance) return sec;
                        
-                       object secObj = config.CreateInstance () as ConfigurationSection;
-                       if (!(secObj is ConfigurationSection))
-                               sec = new IgnoreSection ();
-                       else {
-                               sec = (ConfigurationSection) secObj;
+                       object secObj = config.CreateInstance ();
+                       sec = secObj as ConfigurationSection;
+                       if (sec == null) {
+                               DefaultSection ds = new DefaultSection ();
+                               ds.SectionHandler = secObj as IConfigurationSectionHandler;
+                               sec = ds;
                        }
-                               
+
                        ConfigurationSection parentSection = parent != null ? parent.GetSectionInstance (config, true) : null;
-                       sec.RawXml = data as string;
+
+                       string xml = data as string;
+                       if (xml == null && parentSection != null)
+                               xml = parentSection.RawXml;
+                       sec.RawXml = xml;
                        sec.Reset (parentSection);
-                       
-                       if (data != null) {
-                               XmlTextReader r = new XmlTextReader (new StringReader (data as string));
+
+                       if (xml != null && xml == data) {
+                               XmlTextReader r = new XmlTextReader (new StringReader (xml));
                                sec.DeserializeSection (r);
                                r.Close ();
                        }
@@ -294,9 +322,7 @@ namespace System.Configuration {
                        if (sec.SectionInformation.Type == null)
                                sec.SectionInformation.Type = system.Host.GetConfigTypeName (sec.GetType ());
                        
-                       sec.SectionInformation.SetName (name);
-
-                       SectionInfo section = new SectionInfo (name, sec.SectionInformation.Type, sec.SectionInformation.AllowLocation, sec.SectionInformation.AllowDefinition, sec.SectionInformation.AllowExeDefinition);
+                       SectionInfo section = new SectionInfo (name, sec.SectionInformation);
                        section.StreamName = streamName;
                        section.ConfigHost = system.Host;
                        group.AddChild (section);
@@ -314,6 +340,8 @@ namespace System.Configuration {
                        section.ConfigHost = system.Host;
                        parentGroup.AddChild (section);
                        elementData [section] = sec;
+
+                       sec.Initialize (this, section);
                }
                
                internal void RemoveConfigInfo (ConfigInfo config)
@@ -338,7 +366,7 @@ namespace System.Configuration {
                        try {
                                Save (stream, mode, forceUpdateAll);
                                system.Host.WriteCompleted (streamName, true, ctx);
-                       } catch (Exception ex) {
+                       } catch (Exception) {
                                system.Host.WriteCompleted (streamName, false, ctx);
                                throw;
                        } finally {
@@ -355,11 +383,14 @@ namespace System.Configuration {
                {
                        SaveAs (filename, mode, false);
                }
-               
-               [MonoTODO ("Detect if file has changed")]
+
+               [MonoInternalNote ("Detect if file has changed")]
                public void SaveAs (string filename, ConfigurationSaveMode mode, bool forceUpdateAll)
                {
-                       Save (new FileStream (filename, FileMode.Open, FileAccess.Write), mode, forceUpdateAll);
+                       string dir = Path.GetDirectoryName (Path.GetFullPath (filename));
+                       if (!Directory.Exists (dir))
+                               Directory.CreateDirectory (dir);
+                       Save (new FileStream (filename, FileMode.OpenOrCreate, FileAccess.Write), mode, forceUpdateAll);
                }
 
                void Save (Stream stream, ConfigurationSaveMode mode, bool forceUpdateAll)
@@ -367,7 +398,11 @@ namespace System.Configuration {
                        XmlTextWriter tw = new XmlTextWriter (new StreamWriter (stream));
                        tw.Formatting = Formatting.Indented;
                        try {
-                               tw.WriteStartElement ("configuration");
+                               tw.WriteStartDocument ();
+                               if (rootNamespace != null)
+                                       tw.WriteStartElement ("configuration", rootNamespace);
+                               else
+                                       tw.WriteStartElement ("configuration");
                                if (rootGroup.HasConfigContent (this)) {
                                        rootGroup.WriteConfig (this, tw, mode);
                                }
@@ -402,16 +437,23 @@ namespace System.Configuration {
                
                bool Load ()
                {
-                       if (streamName == null)
+                       if (String.IsNullOrEmpty (streamName))
                                return true;
 
                        XmlTextReader reader = null;
+                       Stream stream = null;
+                       
+                       // FIXME: we should remove this kind of hack that
+                       // hides the actual error
+                       try {
+                               stream = system.Host.OpenStreamForRead (streamName);
+                       } catch (Exception) {
+                               return false;
+                       }
+
                        try {
-                               Stream stream = system.Host.OpenStreamForRead (streamName);
                                reader = new XmlTextReader (stream);
                                ReadConfigFile (reader, streamName);
-                       } catch (Exception e) {
-                               return false;
                        } finally {
                                if (reader != null)
                                        reader.Close();
@@ -423,11 +465,21 @@ namespace System.Configuration {
                internal void ReadConfigFile (XmlTextReader reader, string fileName)
                {
                        reader.MoveToContent ();
+
                        if (reader.NodeType != XmlNodeType.Element || reader.Name != "configuration")
                                ThrowException ("Configuration file does not have a valid root element", reader);
 
-                       if (reader.HasAttributes)
-                               ThrowException ("Unrecognized attribute in root element", reader);
+                       if (reader.HasAttributes) {
+                               while (reader.MoveToNextAttribute ()) {
+                                       if (reader.LocalName == "xmlns") {
+                                               rootNamespace = reader.Value;
+                                               continue;
+                                       }
+                                       ThrowException (String.Format ("Unrecognized attribute '{0}' in root element", reader.LocalName), reader);
+                               }
+                       }
+
+                       reader.MoveToElement ();
 
                        if (reader.IsEmptyElement) {
                                reader.Skip ();
@@ -449,7 +501,7 @@ namespace System.Configuration {
                
                internal void ReadData (XmlTextReader reader, bool allowOverride)
                {
-                       rootGroup.ReadRootData (reader, this, allowOverride);
+                       rootGroup.ReadData (this, reader, allowOverride);
                }