/// <summary>
/// Merges two tagging profiles with the same profile name by merging the tags in each profile
/// </summary>
/// <param name="currentProfile">The <see cref="TaggingProfile">TaggingProfile</see> object that
/// represents the current tagging profile</param>
/// <param name="newProfile">The <see cref="TaggingProfile">TaggingProfile</see> object that
/// represents the new tagging profile</param>
/// <returns>the number of tags merged, -1 if the profiles are null or they have different
/// profile name</returns>
public static int MergeProfile(TaggingProfile currentProfile, TaggingProfile newProfile)
{
//the number of updates/
int updateCount = 0;
//if any of the profile is null.
if (currentProfile == null || newProfile == null)
{
//should not happen. but take care of it anyway.
return -1;
}
//if profile have a different name do not merge
if (!currentProfile.ProfileName.Equals(newProfile.ProfileName))
{
//might want to throw a exception here
return -1;
}
//list of tags from the new profile.
List<Tag> newTagList = new List<Tag>();
newTagList.AddRange(newProfile.ReadOnlyTagList);
List<Tag> monitorList = new List<Tag>();
foreach (Tag newTag in newTagList)//handles the new tag from new profile
{
Tag oldTag = currentProfile.FindTag(newTag.TagName);
if (oldTag != null)
{
bool merge = MergeTag(oldTag, newTag);
if (merge)
{
updateCount++;
}
}
else
{
TaggingLayer.Instance.AddTag(newTag);
monitorList.Add(newTag);
updateCount++;
}
}
foreach (Tag tag in monitorList)//start monitoring each new tag
{
ServiceLocator.LogicLayerNotificationQueue().Enqueue(new AddTagNotification(tag));
}
return updateCount;
}
/// <summary>
/// Initializes tagging profile object. If a tagging.xml file has already been created,
/// loads the information from the file; otherwise, instantiates a new tagging profile object.
/// </summary>
/// <param name="paths">The list of strings which represent the paths of the tagging.xml
/// files to be loaded from</param>
/// <remarks>paths[0] is always the root</remarks>
public void Init(List<string> paths)
{
string profileFilePath = paths[0];
if (!File.Exists(profileFilePath))
{
_taggingProfile = new TaggingProfile(TaggingHelper.GetCurrentTime());
}
else
{
_taggingProfile = TaggingXMLHelper.LoadFrom(profileFilePath);
Debug.Assert(_taggingProfile != null);
}
for (int i = 1; i < paths.Count; i++)
{
if (File.Exists(paths[i]))
{
TaggingProfile profile = TaggingXMLHelper.LoadFrom(paths[i]);
int updateCount = TagMerger.MergeProfile(_taggingProfile, profile);
}
}
}
/// <summary>
/// Creates a new TaggingLayer object
/// </summary>
private TaggingLayer()
{
_taggingProfile = new TaggingProfile(TaggingHelper.GetCurrentTime());
}
public void Init(string profileFilePath)
{
_folderTagList = LoadFolderTagList(profileFilePath);
_fileTagList = LoadFileTagList(profileFilePath);
_taggingProfile = LoadTaggingProfile(profileFilePath);
}
private TaggingLayer()
{
_folderTagList = new List<FolderTag>();
_fileTagList = new List<FileTag>();
_taggingProfile = new TaggingProfile();
}
private static TaggingProfile CreateTaggingProfile(XmlElement profileElement)
{
TaggingProfile taggingProfile = new TaggingProfile();
string profilename = profileElement.GetAttribute("name");
long profilecreated = long.Parse(profileElement.GetAttribute("created"));
long profilelastupdated = long.Parse(profileElement.GetAttribute("lastUpdated"));
taggingProfile.ProfileName = profilename;
taggingProfile.Created = profilecreated;
taggingProfile.LastUpdated = profilelastupdated;
return taggingProfile;
}
/// <summary>
/// Creates a tagging profile Xml element from the tagging profile that is passed as parameter
/// </summary>
/// <param name="xmldoc">The Xmldocument object that represents the Xml document that the
/// Xml element to be created belongs to</param>
/// <param name="taggingProfile">The <see cref="TaggingProfile">TaggingProfile</see> object that
/// represents the tagging profile to be used to create the Xml element</param>
/// <returns>the tagging profile Xml element that is created</returns>
private static XmlElement CreateTaggingProfileElement(XmlDocument xmldoc, TaggingProfile taggingProfile)
{
XmlElement profileElement = xmldoc.CreateElement(ELE_PROFILE_ROOT);
profileElement.SetAttribute(ATTR_PROFILE_NAME, taggingProfile.ProfileName);
profileElement.SetAttribute(ATTR_PROFILE_CREATEDDATE, taggingProfile.CreatedDate.ToString());
profileElement.SetAttribute(ATTR_PROFILE_LASTUPDATEDDATE, taggingProfile.LastUpdatedDate.ToString());
foreach (Tag tag in taggingProfile.ReadOnlyTagList)
{
profileElement.AppendChild(CreateTagElement(xmldoc, tag));
}
return profileElement;
}
private static XmlDocument ConvertTaggingProfileToXml(TaggingProfile taggingProfile)
{
XmlDocument TaggingDataDocument = new XmlDocument();
XmlElement taggingElement = TaggingDataDocument.CreateElement("tagging");
XmlElement profileElement = TaggingDataDocument.CreateElement("profile");
profileElement.SetAttribute("name", taggingProfile.ProfileName);
profileElement.SetAttribute("createdDate", taggingProfile.Created.ToString());
profileElement.SetAttribute("lastUpdated", taggingProfile.LastUpdated.ToString());
foreach (FolderTag folderTag in taggingProfile.FolderTagList)
{
profileElement.AppendChild(CreateFolderTagElement(TaggingDataDocument, folderTag));
}
foreach (FileTag fileTag in taggingProfile.FileTagList)
{
profileElement.AppendChild(CreateFileTagElement(TaggingDataDocument, fileTag));
}
taggingElement.AppendChild(profileElement);
TaggingDataDocument.AppendChild(taggingElement);
return TaggingDataDocument;
}
/// <summary>
/// Creates a tagging profile from the Xml element that is passed as parameter
/// </summary>
/// <param name="profileElement">The XmlElement object that represents the Xml element that is to
/// be used to create the tagging profile</param>
/// <returns>the tagging profile that is created if there is no FormatException thrown;
/// otherwise, null</returns>
private static TaggingProfile CreateTaggingProfile(XmlElement profileElement)
{
try
{
string profilename = profileElement.GetAttribute(ATTR_PROFILE_NAME);
long profilecreated = long.Parse(profileElement.GetAttribute(ATTR_PROFILE_CREATEDDATE));
long profilelastupdated = long.Parse(profileElement.GetAttribute(ATTR_PROFILE_LASTUPDATEDDATE));
TaggingProfile taggingProfile = new TaggingProfile(profilecreated);
taggingProfile.ProfileName = profilename;
taggingProfile.CreatedDate = profilecreated;
taggingProfile.LastUpdatedDate = profilelastupdated;
return taggingProfile;
}
catch (FormatException)
{
return null;
}
catch (XmlException)
{
return null;
}
}
/// <summary>
/// Appends a tagging profile to the tagging.xml saved in the list of locations passed as
/// parameter
/// </summary>
/// <param name="profile">The <see cref="TaggingProfile">TaggingProfile</see> object that
/// represents the tagging profile to be saved to the list of locations</param>
/// <param name="locations">The list of locations containing tagging.xml where the profile
/// that is passed as parameter is to be saved to</param>
public static void AppendProfile(TaggingProfile profile, List<string> locations)
{
foreach (string location in locations)
{
try
{
XmlDocument xmldoc = CommonXmlHelper.LoadXml(location);
if (xmldoc == null)
{
SaveTo(profile, location);
}
else
{
XmlElement newProfileElement = CreateTaggingProfileElement(xmldoc, profile);
XmlElement oldProfileElement = (XmlElement)xmldoc.SelectSingleNode(@"//" + ELE_PROFILE_ROOT + "[@" + ATTR_PROFILE_NAME + @"='" + profile.ProfileName + @"']");
if (oldProfileElement != null)
{
xmldoc.SelectSingleNode(@"//" + ELE_TAGGING_ROOT).RemoveChild(oldProfileElement);
}
xmldoc.SelectSingleNode(@"//" + ELE_TAGGING_ROOT).AppendChild(newProfileElement);
}
}
catch (Exception e)
{
Console.WriteLine(e.StackTrace);
}
}
}
/// <summary>
/// Converts a tagging profile to a Xml document
/// </summary>
/// <param name="taggingProfile">The <see cref="TaggingProfile">TaggingProfile</see> object
/// that represents the tagging profile to be converted</param>
/// <returns>the Xml document that is created from the tagging profile that is passed as parameter
/// </returns>
private static XmlDocument ConvertTaggingProfileToXml(TaggingProfile taggingProfile)
{
XmlDocument xmldoc = new XmlDocument();
XmlElement taggingElement = xmldoc.CreateElement(ELE_TAGGING_ROOT);
XmlElement profileElement = CreateTaggingProfileElement(xmldoc, taggingProfile);
taggingElement.AppendChild(profileElement);
xmldoc.AppendChild(taggingElement);
return xmldoc;
}
/// <summary>
/// Saves a tagging profile to a path that is passed as parameter
/// </summary>
/// <param name="taggingProfile">The <see cref="TaggingProfile">TaggingProfile</see> object
/// that represents the tagging profile to be saved</param>
/// <param name="xmlFilePath">The string value that represents the path where the tagging profile
/// is to be saved to</param>
public static void SaveTo(TaggingProfile taggingProfile, string xmlFilePath)
{
XmlDocument xmlDoc = ConvertTaggingProfileToXml(taggingProfile);
CommonXmlHelper.SaveXml(xmlDoc, xmlFilePath);
}
/// <summary>
/// Saves a tagging profile to a list of paths that is passed as paramater
/// </summary>
/// <param name="taggingProfile">The <see cref="TaggingProfile">TaggingProfile</see> object
/// that represents the tagging profile to be saved</param>
/// <param name="xmlFilePaths">The list of strings that represents the list of paths where
/// the tagging profile is to be saved to</param>
public static void SaveToLocations(TaggingProfile taggingProfile, List<string> xmlFilePaths)
{
foreach (string path in xmlFilePaths)
{
SaveTo(taggingProfile, path);
}
}
