public override ParsedTopic GetParsedTopic(UnqualifiedTopicRevision revision)
{
TextReader textReader = TextReaderForTopic(revision);
if (textReader == null)
{
return null;
}
string contents = null;
try
{
contents = textReader.ReadToEnd();
}
finally
{
textReader.Close();
}
ParsedTopic parsedTopic = TopicParser.Parse(contents);
return parsedTopic;
}
public override ParsedTopic GetParsedTopic(UnqualifiedTopicRevision revision)
{
TextReader textReader = TextReaderForTopic(revision);
if (textReader == null)
{
return null;
}
string contents = null;
try
{
contents = textReader.ReadToEnd();
}
finally
{
textReader.Close();
}
ParsedTopic parsedTopic = TopicParser.Parse(contents);
TopicChange latest = Next.AllChangesForTopicSince(revision.AsUnqualifiedTopicName(), DateTime.MinValue).Latest;
AddBuiltInProperty(parsedTopic, "_TopicName", revision.LocalName);
AddBuiltInProperty(parsedTopic, "_TopicFullName", new QualifiedTopicName(revision.LocalName, Namespace).DottedName);
// Note that even in an non-tip revision, the values of _LastModifiedBy and _CreationTime are of the tip
// revision. The logic here is that since you must use WikiTalk to access these values, you won't be too
// surprised that they change on you when someone commits a new revision.
// Latest can be null in some pathological cases where history information has been deleted.
AddBuiltInProperty(parsedTopic, "_LastModifiedBy",
latest == null ? "" : latest.Author);
AddBuiltInProperty(parsedTopic, "_CreationTime",
latest == null ? DateTime.MinValue.ToString() : latest.Created.ToString());
AddBuiltInProperty(parsedTopic, "_ModificationTime",
latest == null ? DateTime.MinValue.ToString() : latest.Modified.ToString());
AddBuiltInProperty(parsedTopic, "_Body", contents);
AddBuiltInProperty(parsedTopic, "_ProcessTextSize", "0");
AddBuiltInProperty(parsedTopic, "_Wom", "");
return parsedTopic;
}
public TextReader TextReaderForTopic(UnqualifiedTopicRevision revision)
{
if (!HasPermission(new UnqualifiedTopicName(revision.LocalName), TopicPermission.Read))
{
return null;
}
return ContentProviderChain.TextReaderForTopic(revision);
}
/// <summary>
/// Write new contents to a topic revision (doesn't write a new version).
/// </summary>
/// <param name="revision">Revision to write</param>
/// <param name="content">New content</param>
public override void WriteTopic(UnqualifiedTopicRevision revision, string content)
{
string topicName = MakeTopicName(revision);
bool isArchive = (revision.Version != null) && (revision.Version.Length > 0);
DateTime lastWriteTime = Federation.TimeProvider.Now;
_sqlHelper.WriteTopic(Namespace, topicName, lastWriteTime, content, isArchive);
}
public override ParsedTopic GetParsedTopic(UnqualifiedTopicRevision topicRevision)
{
throw new NotImplementedException();
}
private bool IsBuiltInTopic(UnqualifiedTopicRevision revision)
{
return IsBuiltInTopic(new UnqualifiedTopicName(revision.LocalName));
}
private DateTime DateTimeFromTopicName(UnqualifiedTopicRevision topic)
{
return (DateTime) (_topics[topic]);
}
public override TextReader TextReaderForTopic(UnqualifiedTopicRevision revision)
{
throw new NotImplementedException();
//if (!TopicExistsLocally(topic))
// throw TopicNotFoundException.ForTopic(topic, Namespace);
//BackingTopic back = GetBackingTopicNamed(topic);
//if (back != null)
// return new StringReader(back.Body);
//StringBuilder b = new StringBuilder();
//DateTime dt = DateTimeFromTopicName(topic);
//b.Append("This page contains information about '''" + dt.ToLongDateString() + "'''.");
//return new StringReader(b.ToString());
}
/// <summary>
/// Answer a TextReader for the given topic
/// </summary>
/// <param name="topic"></param>
/// <exception cref="TopicNotFoundException">Thrown when the topic doesn't exist</exception>
/// <returns>TextReader</returns>
public virtual TextReader TextReaderForTopic(UnqualifiedTopicRevision topicRevision)
{
return _next.TextReaderForTopic(topicRevision);
}
/// <summary>
/// Write new contents over the specified version of the topic (doesn't write a new version).
/// </summary>
/// <param name="topic">Topic to overwrite.</param>
/// <param name="version">Version to overwrite.</param>
/// <param name="content">New content.</param>
public void WriteTopic(UnqualifiedTopicRevision revision, string content)
{
if (revision.Version != null)
{
if (!TopicVersionExists(revision))
{
throw FlexWikiException.VersionDoesNotExist(new QualifiedTopicName(revision.LocalName, this.Namespace),revision.Version);
}
}
ContentProviderChain.WriteTopic(revision, content);
}
public TextReader TextReaderForTopic(UnqualifiedTopicRevision revision)
{
return ContentProviderChain.TextReaderForTopic(revision);
}
private string TopicPath(UnqualifiedTopicRevision revision)
{
return TopicPath(revision.LocalName, revision.Version);
}
/// <summary>
/// Write a new version of the topic (doesn't write a new version). Generate all needed federation update changes via the supplied generator.
/// </summary>
/// <param name="topic">Topic to write</param>
/// <param name="content">New content</param>
/// <param name="sink">Object to recieve change info about the topic</param>
public override void WriteTopic(UnqualifiedTopicRevision topicRevision, string content)
{
string root = Root;
string fullpath = MakePath(root, topicRevision.LocalName, topicRevision.Version);
FileSystem.WriteFile(fullpath, content);
}
/// <summary>
/// Answer a TextReader for the given topic
/// </summary>
/// <param name="topic"></param>
/// <exception cref="TopicNotFoundException">Thrown when the topic doesn't exist</exception>
/// <returns>TextReader</returns>
public override TextReader TextReaderForTopic(UnqualifiedTopicRevision topicRevision)
{
string topicFile = TopicPath(topicRevision);
if (topicFile == null || !FileSystem.FileExists(topicFile))
{
return null;
}
return new StreamReader(FileSystem.OpenRead(topicFile, FileMode.Open, FileAccess.Read, FileShare.Read));
}
public void WriteTopicAndNewVersion(UnqualifiedTopicName topic, string content, string author)
{
UnqualifiedTopicRevision versionedTopicName = new UnqualifiedTopicRevision(topic,
TopicRevision.NewVersionStringForUser(author, Federation.TimeProvider.Now));
UnqualifiedTopicRevision unversionedTopicName = new UnqualifiedTopicRevision(topic);
ContentProviderChain.WriteTopic(versionedTopicName, content);
ContentProviderChain.WriteTopic(unversionedTopicName, content);
}
private void RecordTopicChanges(UnqualifiedTopicRevision topic, bool isNew, string content, string oldText, Hashtable oldProperties)
{
throw new NotImplementedException("Reenable if we figure out how to deal with updates.");
/*
try
{
AbsoluteTopicName absTopic = topic.AsAbsoluteTopicName(Namespace);
gen.Push();
// Record the topic-level change
if (isNew)
gen.RecordCreatedTopic(absTopic);
else
gen.RecordUpdatedTopic(absTopic);
// Now process the imports
Hashtable newProperties = NamespaceManager.ExtractExplicitFieldsFromTopicBody(content);
if (isNew)
{
foreach (string pName in newProperties.Keys)
gen.RecordPropertyChange(absTopic, pName, FederationUpdate.PropertyChangeType.PropertyAdd);
gen.RecordPropertyChange(absTopic, "_Body", FederationUpdate.PropertyChangeType.PropertyAdd);
gen.RecordPropertyChange(absTopic, "_TopicName", FederationUpdate.PropertyChangeType.PropertyAdd);
gen.RecordPropertyChange(absTopic, "_TopicFullName", FederationUpdate.PropertyChangeType.PropertyAdd);
gen.RecordPropertyChange(absTopic, "_LastModifiedBy", FederationUpdate.PropertyChangeType.PropertyAdd);
gen.RecordPropertyChange(absTopic, "_CreationTime", FederationUpdate.PropertyChangeType.PropertyAdd);
gen.RecordPropertyChange(absTopic, "_ModificationTime", FederationUpdate.PropertyChangeType.PropertyAdd);
}
else
{
if (content != oldText)
{
FillFederationUpdateByComparingPropertyHashes(gen, absTopic, oldProperties, newProperties);
gen.RecordPropertyChange(absTopic, "_Body", FederationUpdate.PropertyChangeType.PropertyUpdate);
}
gen.RecordPropertyChange(absTopic, "_ModificationTime", FederationUpdate.PropertyChangeType.PropertyUpdate);
}
}
finally
{
gen.Pop();
}
*/
}
/// <summary>
/// Returns the parsed representation of the specified topic.
/// </summary>
/// <param name="topic">The topic for which to return the parsed representation.</param>
/// <returns>A <see cref="ParsedTopic"/> object containing the parsed representation of the topic.</returns>
public virtual ParsedTopic GetParsedTopic(UnqualifiedTopicRevision topicRevision)
{
return _next.GetParsedTopic(topicRevision);
}
private bool TopicVersionExists(UnqualifiedTopicRevision revision)
{
TopicChangeCollection changes = AllChangesForTopic(revision.AsUnqualifiedTopicName());
if (changes == null)
{
return false;
}
foreach (TopicChange change in changes)
{
if (change.Version == revision.Version)
{
return true;
}
}
return false;
}
public virtual void WriteTopic(UnqualifiedTopicRevision topicRevision, string content)
{
_next.WriteTopic(topicRevision, content);
}
public DateTime GetTopicCreationTime(UnqualifiedTopicRevision revision)
{
TopicChangeCollection changes = AllChangesForTopic(revision.DottedName);
if (changes == null)
{
throw TopicNotFoundException.ForTopic(revision, Namespace);
}
if (revision.Version == null)
{
return changes.Latest.Created;
}
else
{
foreach (TopicChange change in changes)
{
if (change.Version == revision.Version)
{
return change.Created;
}
}
}
throw TopicNotFoundException.ForTopic(revision, Namespace);
}
public override void WriteTopic(UnqualifiedTopicRevision revision, string content)
{
throw new NotImplementedException();
}
/// <summary>
/// Answer the contents of a given topic.
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="version">The version to read, or null for the latest version.</param>
/// <returns>The contents of the topic or null if it can't be read (e.g., doesn't exist)</returns>
public string Read(UnqualifiedTopicRevision revision)
{
using (TextReader st = TextReaderForTopic(revision))
{
if (st == null)
{
return null;
}
return st.ReadToEnd();
}
}
public override TextReader TextReaderForTopic(UnqualifiedTopicRevision topicRevision)
{
// We need to special-case the definition topic because otherwise we
// cause an infinite loop: this method calls NamespaceManager.HomePage,
// which calls TextReaderForTopic on the definition topic to figure out
// which topic is the home page.
if (IsDefinitionTopic(topicRevision))
{
return Next.TextReaderForTopic(topicRevision);
}
else if (!IsBuiltInTopic(topicRevision))
{
return Next.TextReaderForTopic(topicRevision);
}
else if (topicRevision.Version == null)
{
TopicChangeCollection changes = Next.AllChangesForTopicSince(
topicRevision.AsUnqualifiedTopicName(), DateTime.MinValue);
if (changes == null || changes.Count == 0)
{
string defaultContent = DefaultContentFor(topicRevision.LocalName);
return new StringReader(defaultContent);
}
else
{
return Next.TextReaderForTopic(topicRevision);
}
}
else if (topicRevision.Version == TopicRevision.NewVersionStringForUser(c_builtInAuthor, DateTime.MinValue))
{
string defaultContent = DefaultContentFor(topicRevision.LocalName);
return new StringReader(defaultContent);
}
else
{
return Next.TextReaderForTopic(topicRevision);
}
}
private SqlInfoForTopic[] SqlTopicInfosForTopic(UnqualifiedTopicRevision topic)
{
return SqlHelper.GetSqlTopicInfosForTopic(Namespace, topic.LocalName, _connectionString);
}
private bool IsDefinitionTopic(UnqualifiedTopicRevision topicRevision)
{
QualifiedTopicName topicName = new QualifiedTopicName(topicRevision.LocalName, Namespace);
return topicName.Equals(NamespaceManager.DefinitionTopicName);
}
/// <summary>
/// Answer a TextReader for the given topic
/// </summary>
/// <param name="topic"></param>
/// <exception cref="TopicNotFoundException">Thrown when the topic doesn't exist</exception>
/// <returns>TextReader</returns>
public override TextReader TextReaderForTopic(UnqualifiedTopicRevision revision)
{
string topicName = MakeTopicName(revision);
if (topicName == null || !SqlHelper.TopicExists(Namespace, topicName, _connectionString))
{
throw TopicNotFoundException.ForTopic(revision, Namespace);
}
return new StringReader(SqlHelper.GetTopicBody(Namespace, topicName, _connectionString));
}
/// <summary>
/// Answer a TextReader for the given topic
/// </summary>
/// <param name="topic"></param>
/// <exception cref="TopicNotFoundException">Thrown when the topic doesn't exist</exception>
/// <returns>TextReader</returns>
public override TextReader TextReaderForTopic(UnqualifiedTopicRevision revision)
{
string topicName = MakeTopicName(revision);
if (topicName == null || !_sqlHelper.TopicExists(Namespace, topicName))
{
return null;
}
return new StringReader(_sqlHelper.GetTopicBody(Namespace, topicName));
}
/// <summary>
/// Write a new version of the topic (doesn't write a new version). Generate all needed federation update changes via the supplied generator.
/// </summary>
/// <param name="topic">Topic to write</param>
/// <param name="content">New content</param>
/// <param name="gen">Object to recieve change info about the topic</param>
public override void WriteTopic(UnqualifiedTopicRevision revision, string content)
{
string topicName = MakeTopicName(revision);
bool isNew = !(SqlHelper.TopicExists(Namespace, topicName, _connectionString));
// Get old topic so we can analyze it for imports to compare with the new one
string oldText = null;
Hashtable oldProperties = null;
if (!isNew)
{
oldText = SqlHelper.GetTopicBody(Namespace, topicName, _connectionString);
// TODO: Deal with how this API has changed
//oldProperties = NamespaceManager.ExtractExplicitFieldsFromTopicBody(oldText);
throw new NotImplementedException();
}
string nameWithVersion = revision.DottedNameWithVersion;
SqlHelper.WriteTopic(Namespace, topicName, LastWriteTime(nameWithVersion), _connectionString, content, ((revision.Version != null && revision.Version.Length > 0) ? true : false));
// Record changes
RecordTopicChanges(revision, isNew, content, oldText, oldProperties);
}
private static string MakeTopicName(UnqualifiedTopicRevision revision)
{
return revision.DottedNameWithVersion;
}
public void SetWomCache(UnqualifiedTopicRevision revision, string wom)
{
if (!HasPermission(new UnqualifiedTopicName(revision.LocalName), TopicPermission.Read))
{
return;
}
ParsedTopic parsedTopic = ContentProviderChain.GetParsedTopic(revision);
if (parsedTopic == null)
{
return;
}
TopicPropertyValue topicPropertyValue = new TopicPropertyValue(wom);
parsedTopic.Properties["_Wom"].Values.Clear();
parsedTopic.Properties["_Wom"].Values.Add(topicPropertyValue);
}
