/// <summary>
/// Creates a brand new project. If this completes without any exception, you can
/// call <see cref="OpenProject"/> to activate the project.
/// </summary>
/// <param name="projectName">The user-perceived name for the project.</param>
/// <param name="layer">The map layer the project is for (not null)</param>
internal void CreateProject(string projectName, ILayer layer)
{
if (String.IsNullOrWhiteSpace(projectName) || layer == null)
{
throw new ArgumentNullException();
}
// Confirm that the project name is unique
if (FindProjectId(projectName) != null)
{
throw new ArgumentException("Specified project already exists");
}
// Define the event data
NewProjectEvent e = new NewProjectEvent()
{
ProjectId = Guid.NewGuid(),
ProjectName = projectName,
LayerId = layer.Id,
DefaultSystem = String.Empty,
UserName = System.Environment.UserName,
MachineName = System.Environment.MachineName
};
// Create the index entry
CreateIndexEntry(projectName, e.ProjectId);
// Create the data folder
string dataFolder = CreateDataFolder(e.ProjectId);
// Serialize the event data to the data folder. Specify <Change> so that
// the class name will be included in the output file.
string s = EditSerializer.GetSerializedString <Change>(DataField.Edit, e);
string fileName = Path.Combine(dataFolder, GetDataFileName(e.EditSequence));
File.WriteAllText(fileName, s);
// Write initial project settings to the data folder
ProjectSettings ps = new ProjectSettings();
IDataServer ds = EditingController.Current.DataServer;
if (ds != null)
{
ps.ConnectionString = ds.ConnectionString;
}
// Turn off auto-number if there's no database connection string
if (String.IsNullOrEmpty(ps.ConnectionString))
{
ps.IsAutoNumber = false;
}
// Remember default entity types for points, lines, text, polygons
ps.SetEntityTypeDefaults(layer);
// Save the settings
string settingsFileName = Path.Combine(dataFolder, "settings.txt");
ps.WriteXML(settingsFileName);
}
void LoadDataFiles(string folderName, uint[] fileNums)
{
Trace.Write("Reading data...");
EditDeserializer ed = new EditDeserializer(this);
Session lastSession = null;
IdManager idMan = m_MapModel.IdManager;
foreach (uint fileNum in fileNums)
{
string editFile = Path.Combine(folderName, ProjectDatabase.GetDataFileName(fileNum));
using (TextReader tr = File.OpenText(editFile))
{
TextEditReader er = new TextEditReader(tr);
// Ignore any empty files altogether
while (er.HasNext)
{
ed.SetReader(er);
Change edit = Change.Deserialize(ed);
if (edit is NewProjectEvent)
{
m_ProjectInfo = (NewProjectEvent)edit;
// If the project settings don't have default entity types, initialize them with
// the layer defaults. This covers a case where the settings file has been lost, and
// automatically re-created by ProjectSettings.CreateInstance.
var layer = EnvironmentContainer.FindLayerById(m_ProjectInfo.LayerId);
m_Settings.SetEntityTypeDefaults(layer);
}
else if (edit is NewSessionEvent)
{
lastSession = new Session(this, (NewSessionEvent)edit, editFile);
m_MapModel.AddSession(lastSession);
}
else if (edit is EndSessionEvent)
{
Debug.Assert(lastSession != null);
lastSession.EndTime = edit.When;
}
else if (edit is IdAllocation)
{
if (idMan != null)
{
IdAllocation alloc = (IdAllocation)edit;
IdGroup g = idMan.FindGroupById(alloc.GroupId);
g.AddIdPacket(alloc);
// Remember that allocations have been made in the session (bit of a hack
// to ensure the session isn't later removed if no edits are actually
// performed).
lastSession.AddAllocation(alloc);
}
}
else
{
Debug.Assert(edit is Operation);
Debug.Assert(lastSession != null);
lastSession.AddOperation((Operation)edit);
}
}
}
}
if (m_ProjectInfo == null)
{
throw new ApplicationException("Could not locate the project creation event");
}
// Apply any forward references
ed.ApplyForwardRefs();
// Remember the highest internal ID used by the project
SetLastItem(fileNums[fileNums.Length - 1]);
}