private bool ReadEntity(XElement element, OsmEntity entity)
{
if (element.Attribute("id") != null)
{
entity.Id = GetLong(element, "id");
entity.UserName = GetString(element, "user");
entity.UserId = GetLong(element, "uid");
entity.Version = GetLong(element, "version");
entity.Changeset = GetLong(element, "changeset");
entity.Timestamp = GetDate(element, "timestamp");
entity.IsVisible = GetBool(element, "visible");
foreach (var kv in element.Elements("tag"))
{
var key = ((string) kv.Attribute("k"));
var value = ((string) kv.Attribute("v"));
if (string.IsNullOrWhiteSpace(key) || string.IsNullOrWhiteSpace(value))
{
log.Warn("Entity {0} has invalid tag data {1} = {2}",entity.Id,key ?? "[null]",value ?? "[null]");
}
else
{
entity.Tags[key] = value;
}
}
return true;
}
return false;
}
private ITreeNode<OsmEntity> BuildEntityTree(OsmEntity rootEntity,Stack<OsmEntity> stack)
{
if ( stack.Contains(rootEntity))
{
return null;
}
stack.Push(rootEntity);
using( new DisposableCallback(() => stack.Pop()))
{
var rootNode = rootEntity as OsmNode;
if ( rootNode != null )
{
return new TreeNode<OsmEntity>(rootEntity);
}
var rootWay = rootEntity as OsmWay;
if ( rootWay != null )
{
return new TreeNode<OsmEntity>(rootEntity,GetChildNodes(rootWay).Select(c => new TreeNode<OsmEntity>(c)));
}
var rootRelation = rootEntity as OsmRelation;
if( rootRelation != null )
{
var childTreeNodes = GetChildEntities(rootRelation)
.Select(e => BuildEntityTree(e, stack))
.Where(e => e != null);
return new TreeNode<OsmEntity>(rootEntity,childTreeNodes.ToArray());
}
}
return null;
}
private ITreeNode<OsmEntity> BuildEntityTree(OsmEntity rootEntity)
{
return BuildEntityTree(entity,new Stack<OsmEntity>());
}
public OsmEntityContext(MongoDatabase database, OsmEntity entity)
{
this.database = database;
this.entity = entity;
}
