/// <summary>
/// Writes an LDML representation of this writing system to the specified writer.
/// </summary>
/// <param name="writer">The writer.</param>
public void WriteLdml(XmlWriter writer)
{
var adaptor = new FwLdmlAdaptor();
lock (m_syncRoot)
adaptor.Write(writer, this, null);
}
private WritingSystemDefinition GetFromFilePath(string filePath)
{
try
{
WritingSystemDefinition ws = CreateNew();
var adaptor = new FwLdmlAdaptor();
adaptor.Read(filePath, ws);
ws.StoreID = ((PalasoWritingSystem)ws).RFC5646;
ws.Modified = false;
return(ws);
}
catch (Exception e)
{
throw new ArgumentException("GlobalWritingSystemStore was unable to load the LDML file " + filePath, "filePath", e);
}
}
/// <summary>
/// Creates a new writing system.
/// </summary>
/// <returns></returns>
public IWritingSystem Create(string identifier)
{
lock (m_syncRoot)
{
if (m_globalStore != null)
{
IWritingSystemDefinition globalWs;
if (m_globalStore.TryGet(identifier, out globalWs))
{
return((PalasoWritingSystem)m_globalStore.MakeDuplicate(globalWs));
}
}
}
LanguageSubtag languageSubtag;
ScriptSubtag scriptSubtag;
RegionSubtag regionSubtag;
VariantSubtag variantSubtag;
if (!LangTagUtils.GetSubtags(identifier, out languageSubtag, out scriptSubtag, out regionSubtag, out variantSubtag))
{
throw new ArgumentException(identifier + " is not a valid RFC5646 language tag.");
}
var result = Create(languageSubtag, scriptSubtag, regionSubtag, variantSubtag);
if (TemplateFolder != null)
{
// try in our master template file
// Todo: have property TemplateFolderPath, initialize in FdoBackendProvider.InitializeWritingSystemManager
var template = Path.Combine(TemplateFolder, Path.ChangeExtension(identifier, "ldml"));
if (File.Exists(template))
{
var loader = new FwLdmlAdaptor();
loader.Read(template, (WritingSystemDefinition)result);
}
}
return(result);
}
/// <summary>
/// Writes an LDML representation of this writing system to the specified writer.
/// </summary>
/// <param name="writer">The writer.</param>
public void WriteLdml(XmlWriter writer)
{
var adaptor = new FwLdmlAdaptor();
lock (m_syncRoot)
adaptor.Write(writer, this, null);
}
/// <summary>
/// Creates a new writing system.
/// </summary>
/// <returns></returns>
public IWritingSystem Create(string identifier)
{
lock (m_syncRoot)
{
if (m_globalStore != null)
{
IWritingSystemDefinition globalWs;
if (m_globalStore.TryGet(identifier, out globalWs))
return (PalasoWritingSystem) m_globalStore.MakeDuplicate(globalWs);
}
}
LanguageSubtag languageSubtag;
ScriptSubtag scriptSubtag;
RegionSubtag regionSubtag;
VariantSubtag variantSubtag;
if (!LangTagUtils.GetSubtags(identifier, out languageSubtag, out scriptSubtag, out regionSubtag, out variantSubtag))
throw new ArgumentException(identifier + " is not a valid RFC5646 language tag.");
var result = Create(languageSubtag, scriptSubtag, regionSubtag, variantSubtag);
if (TemplateFolder != null)
{
// try in our master template file
// Todo: have property TemplateFolderPath, initialize in FdoBackendProvider.InitializeWritingSystemManager
var template = Path.Combine(TemplateFolder, Path.ChangeExtension(identifier, "ldml"));
if (File.Exists(template))
{
var loader = new FwLdmlAdaptor();
loader.Read(template, (WritingSystemDefinition)result);
}
}
return result;
}
/// <summary>
/// Adds the writing system to the store or updates the store information about
/// an already-existing writing system. Set should be called when there is a change
/// that updates the RFC5646 information.
/// </summary>
public void Set(IWritingSystemDefinition ws)
{
m_mutex.WaitOne();
MemoryStream oldData = null;
try
{
string writingSystemFileName = GetFileName(ws);
string writingSystemFilePath = GetFilePath(ws);
if (!ws.Modified && File.Exists(writingSystemFilePath))
return; // no need to save (better to preserve the modified date)
var oldId = ws.StoreID;
string incomingFileName = GetFileName(oldId);
string incomingFilePath = GetFilePath(oldId);
if (!string.IsNullOrEmpty(incomingFileName))
{
if (File.Exists(incomingFilePath))
{
// load old data to preserve stuff in LDML that we don't use, but don't throw up an error if it fails
try
{
oldData = new MemoryStream(File.ReadAllBytes(incomingFilePath), false);
}
catch
{
}
if (writingSystemFileName != incomingFileName)
{
File.Delete(incomingFilePath);
// JohnT: Added this without fully understanding, to get things to compile. I don't fully
// know when this event should be raised, nor am I sure I am building the argument correctly.
// However, I don't think anything (at least in our code) actually uses it.
if (WritingSystemIdChanged != null)
WritingSystemIdChanged(this, new WritingSystemIdChangedEventArgs(oldId, ((PalasoWritingSystem)ws).RFC5646));
}
}
}
var adaptor = new FwLdmlAdaptor();
try
{
// Provides FW on Linux multi-user access. Overrides the system
// umask and creates the files with the permissions "775".
// The "fieldworks" group was created outside the app during
// configuration of the package which allows group access.
using (new FileModeOverride())
{
adaptor.Write(writingSystemFilePath, (WritingSystemDefinition)ws, oldData);
}
}
catch (UnauthorizedAccessException)
{
// If we can't save the changes, too bad. Inability to save locally is typically caught
// when we go to open the modify dialog. If we can't make the global store consistent,
// as we well may not be able to in a client-server mode, too bad.
}
ws.Modified = false;
}
finally
{
if (oldData != null)
oldData.Dispose();
m_mutex.ReleaseMutex();
}
}
private IWritingSystemDefinition GetFromFilePath(string filePath)
{
try
{
var ws = (WritingSystemDefinition)CreateNew();
var adaptor = new FwLdmlAdaptor();
adaptor.Read(filePath, ws);
ws.StoreID = ((PalasoWritingSystem)ws).RFC5646;
ws.Modified = false;
return ws;
}
catch (Exception e)
{
throw new ArgumentException("GlobalWritingSystemStore was unable to load the LDML file " + filePath, "filePath", e);
}
}
/// <summary>
/// Adds the writing system to the store or updates the store information about
/// an already-existing writing system. Set should be called when there is a change
/// that updates the RFC5646 information.
/// </summary>
public void Set(WritingSystemDefinition ws)
{
m_mutex.WaitOne();
MemoryStream oldData = null;
try
{
string writingSystemFileName = GetFileName(ws);
string writingSystemFilePath = GetFilePath(ws);
if (!ws.Modified && File.Exists(writingSystemFilePath))
{
return; // no need to save (better to preserve the modified date)
}
var oldId = ws.StoreID;
string incomingFileName = GetFileName(oldId);
string incomingFilePath = GetFilePath(oldId);
if (!string.IsNullOrEmpty(incomingFileName))
{
if (File.Exists(incomingFilePath))
{
// load old data to preserve stuff in LDML that we don't use, but don't throw up an error if it fails
try
{
oldData = new MemoryStream(File.ReadAllBytes(incomingFilePath), false);
}
catch
{
}
if (writingSystemFileName != incomingFileName)
{
File.Delete(incomingFilePath);
// JohnT: Added this without fully understanding, to get things to compile. I don't fully
// know when this event should be raised, nor am I sure I am building the argument correctly.
// However, I don't think anything (at least in our code) actually uses it.
if (WritingSystemIdChanged != null)
{
WritingSystemIdChanged(this, new WritingSystemIdChangedEventArgs(oldId, ((PalasoWritingSystem)ws).RFC5646));
}
}
}
}
var adaptor = new FwLdmlAdaptor();
try
{
adaptor.Write(writingSystemFilePath, ws, oldData);
}
catch (UnauthorizedAccessException)
{
// If we can't save the changes, too bad. Inability to save locally is typically caught
// when we go to open the modify dialog. If we can't make the global store consistent,
// as we well may not be able to in a client-server mode, too bad.
}
ws.Modified = false;
}
finally
{
if (oldData != null)
{
oldData.Dispose();
}
m_mutex.ReleaseMutex();
}
}
