public async Task LoadAsync()
{
// Create a Layer object from a layer file
var layer = await LayerUtilities.GetLayerFromLayerFileAsync(_path);
// The layer object was fully hydrated from the file; Initialize will do no IO.
Initialize(layer);
}
// Potential cleanup; this could be a derived property from the other layer properties
private static string GetDataSourceFullNameFromLayer(ILayer layer)
{
if (!(layer is IDataLayer))
{
return(null);
}
string workspace = LayerUtilities.GetWorkspacePathFromLayer(layer);
string container = LayerUtilities.GetDataSourceContainerFromLayer(layer);
string dataset = LayerUtilities.GetDataSourceNameFromLayer(layer);
if (dataset == null)
{
return(null);
}
if (workspace == null)
{
return(dataset);
}
if (container == null)
{
return(Path.Combine(workspace, dataset));
}
return(Path.Combine(Path.Combine(workspace, container), dataset));
}
private void Initialize(ILayer layer)
{
// Layer properties
Name = layer.Name;
DataType = LayerUtilities.GetLayerDescriptionFromLayer(layer);
IsGroup = DataType == "Group Layer";
SubLayers = GetSubLayers(layer);
// data source properties;
if (LayerUtilities.HasDataSetName(layer))
{
DataSource = GetDataSourceFullNameFromLayer(layer);
WorkspacePath = LayerUtilities.GetWorkspacePathFromLayer(layer);
WorkspaceProgId = LayerUtilities.GetWorkspaceProgIDFromLayer(layer);
WorkspaceType = LayerUtilities.GetWorkspaceTypeFromLayer(layer);
Container = LayerUtilities.GetDataSourceContainerFromLayer(layer);
ContainerType = LayerUtilities.GetDataSourceContainerTypeFromLayer(layer);
DataSourceName = LayerUtilities.GetDataSourceNameFromLayer(layer);
DataSetName = LayerUtilities.GetDataSetNameFromLayer(layer);
DataSetType = LayerUtilities.GetDataSetTypeFromLayer(layer);
}
else if (LayerUtilities.HasAGSServerObjectName(layer))
{
DataSource = LayerUtilities.GetURLFromAGSLayer(layer);
DataSourceName = LayerUtilities.GetNameFromAGSLayer(layer);
DataSetName = DataSourceName;
DataSetType = LayerUtilities.GetTypeFromAGSLayer(layer);
WorkspacePath = null;
WorkspaceProgId = null;
WorkspaceType = null;
Container = null;
ContainerType = null;
}
else if (LayerUtilities.HasIMSServiceDescription(layer))
{
DataSource = LayerUtilities.GetURLFromIMSLayer(layer);
DataSourceName = LayerUtilities.GetNameFromIMSLayer(layer);
DataSetName = DataSourceName;
DataSetType = LayerUtilities.GetTypeFromIMSLayer(layer);
WorkspacePath = null;
WorkspaceProgId = null;
WorkspaceType = null;
Container = null;
ContainerType = null;
}
else if (LayerUtilities.HasWMSConnectionName(layer))
{
DataSource = LayerUtilities.GetURLFromWMSLayer(layer);
DataSourceName = DataSource;
DataSetName = DataSource;
DataSetType = LayerUtilities.GetAllPropertiesFromWMSLayer(layer);
WorkspacePath = null;
WorkspaceProgId = null;
WorkspaceType = null;
Container = null;
ContainerType = null;
}
else if (LayerUtilities.HasWMTSConnectionName(layer))
{
DataSource = LayerUtilities.GetURLFromWMTSLayer(layer);
DataSourceName = DataSource;
DataSetName = DataSource;
DataSetType = LayerUtilities.GetAllPropertiesFromWMSLayer(layer);
WorkspacePath = null;
WorkspaceProgId = null;
WorkspaceType = null;
Container = null;
ContainerType = null;
}
else if (LayerUtilities.HasDataSourceName(layer))
{
DataSource = LayerUtilities.GetDataSourceName(layer);
DataSourceName = DataSource;
DataSetName = DataSource;
DataSetType = DataSource;
WorkspacePath = null;
WorkspaceProgId = null;
WorkspaceType = null;
Container = null;
ContainerType = null;
}
else
{
DataSource = "!Error, Unable to determine data source type";
WorkspacePath = null;
WorkspaceProgId = null;
WorkspaceType = null;
Container = null;
ContainerType = null;
DataSourceName = null;
DataSetName = null;
DataSetType = null;
}
if (string.IsNullOrEmpty(DataSource))
{
DataSource = "!Error - Data source not found";
}
}
