/// <summary>
/// Returns true if another instance represents logically the same regional entity: has the same type and path, regardless of path extensions ('.r','.noc',...).
/// Use this as a test as Equals() is not overriden by this class and does instance-based comparison by default
/// </summary>
public bool IsLogicallyTheSame(SectionRegionBase other)
{
if (other == null)
{
return(false);
}
if (GetType() != other.GetType())
{
return(false);
}
if (!this.RegionPath.IsSameRegionPath(other.RegionPath))
{
return(false);
}
return(true);
}
internal SectionRegionBase(RegCatalog catalog, SectionRegionBase parentSection, string name, string path, FileSystemSession session) : base(catalog, name, path, session)
{
ParentSection = parentSection;
var gc = this.LevelConfig.AttrByName(Metabank.CONFIG_GEO_CENTER_ATTR).Value;
if (gc.IsNotNullOrWhiteSpace())
{
try
{
GeoCenter = new LatLng(gc);
}
catch (Exception error)
{
throw new MetabaseException(StringConsts.METABASE_REG_GEO_CENTER_ERROR.Args(GetType().Name, name, gc, error.ToMessageWithType()));
}
}
}
/// <summary>
/// Tries to navigate to region path as far as possible and returns the deepest section or null.
/// This method is needed to obtain root paths from detailed paths with wild cards.
/// Method also returns how deep it could navigate(how many path levels resolved).
/// For example:
/// '/Us/East/Clev.noc/{1}/{2}' - Clev.noc with depth=3 will be returned.
/// </summary>
public SectionRegionBase TryNavigateAsFarAsPossible(string path, out int depth)
{
depth = 0;
if (path == null)
{
return(null);
}
var segs = path.Split('/').Where(s => s.IsNotNullOrWhiteSpace()).Select(s => s.Trim());
SectionRegionBase existing = null;
SectionRegionBase current = null;
var first = true;
foreach (var seg in (segs))
{
if (first)
{
first = false;
if (seg.EndsWith(RegCatalog.REG_EXT))
{
current = Regions[seg.Substring(0, seg.LastIndexOf(RegCatalog.REG_EXT))];
}
else
{
current = Regions[seg];
}
}
else
{
current = current[seg];
}
if (current == null)
{
break;
}
depth++;
existing = current;
}
return(existing);
}
/// <summary>
/// Tries to navigate to NOC section in the specified absolute path and returns it or null if path is invalid/does not lead to NOC.
/// Ignores anything after the NOC section (zones, hosts etc..). For example '/world/us/east/CLE.noc/a/ii/x' will return 'CLE.noc' section,
/// but '/world/us/east' will return null as there is no NOC in the path
/// </summary>
public SectionNOC GetNOCofPath(string path)
{
if (path == null)
{
return(null);
}
var segs = path.Split('/').Where(s => s.IsNotNullOrWhiteSpace());
SectionRegionBase current = null;
var first = true;
foreach (var seg in (segs))
{
if (first)
{
first = false;
if (seg.EndsWith(RegCatalog.REG_EXT))
{
current = Regions[seg.Substring(0, seg.LastIndexOf(RegCatalog.REG_EXT))];
}
else
{
current = Regions[seg];
}
}
else
{
if (current == null)
{
return(null);
}
current = current[seg];
}
if (current is SectionNOC)
{
return((SectionNOC)current);
}
}
return(null);
}
/// <summary>
/// Counts the number of matching region path segments that resolve to the same section in the region catalog.
/// Example: /US/East/CLE/A/I and /US/East/JFK/A/I returns 2
/// </summary>
public int CountMatchingPathSegments(SectionRegionBase sect1, SectionRegionBase sect2)
{
if (sect1 == null || sect2 == null)
{
return(0);
}
var chain1 = sect1.SectionsOnPath.ToList();
var chain2 = sect2.SectionsOnPath.ToList();
var i = 0;//count number of matching segments
for (; i < chain1.Count && i < chain2.Count; i++)
{
if (!chain1[i].IsLogicallyTheSame(chain2[i]))
{
break;
}
}
return(i);
}
/// <summary>
/// Navigates to region path and returns the corresponding section or null.
/// The path root starts at region catalog level i.e.: '/Us/East/Clev.noc/A/IV/wlarge0001' -
/// a path to a host called 'wlarge0001' located in zone A-IV in Cleveland network center etc.
/// NOTE: may omit the '.r', '.noc', and '.z' region/noc and zone designators.
/// The navigation is done using case-insensitive name comparison, however
/// the underlying file system may be case-sensitive and must be supplied the exact name
/// </summary>
public SectionRegionBase this[string path]
{
get
{
if (path == null)
{
return(null);
}
var segs = path.Split('/').Where(s => s.IsNotNullOrWhiteSpace()).Select(s => s.Trim());
SectionRegionBase result = null;
var first = true;
foreach (var seg in (segs))
{
if (first)
{
first = false;
if (seg.EndsWith(RegCatalog.REG_EXT))
{
result = Regions[seg.Substring(0, seg.LastIndexOf(RegCatalog.REG_EXT))];
}
else
{
result = Regions[seg];
}
}
else
{
result = result[seg];
}
if (result == null)
{
break;
}
}
return(result);
}
}
