public ILoggerRepository CreateRepository()

in src/log4net/Core/DefaultRepositorySelector.cs [261:342]
61 lines of code
10 McCabe index (conditional complexity)

		public ILoggerRepository CreateRepository(Assembly repositoryAssembly, Type repositoryType, string repositoryName, bool readAssemblyAttributes)
		{
			if (repositoryAssembly == null)
			{
				throw new ArgumentNullException("repositoryAssembly");
			}

			// If the type is not set then use the default type
			if (repositoryType == null)
			{
				repositoryType = m_defaultRepositoryType;
			}

			lock(this)
			{
				// Lookup in map
				ILoggerRepository rep = m_assembly2repositoryMap[repositoryAssembly] as ILoggerRepository;
				if (rep == null)
				{
					// Not found, therefore create
					LogLog.Debug(declaringType, "Creating repository for assembly [" + repositoryAssembly + "]");

					// Must specify defaults
					string actualRepositoryName = repositoryName;
					Type actualRepositoryType = repositoryType;

					if (readAssemblyAttributes)
					{
						// Get the repository and type from the assembly attributes
						GetInfoForAssembly(repositoryAssembly, ref actualRepositoryName, ref actualRepositoryType);
					}

					LogLog.Debug(declaringType, "Assembly [" + repositoryAssembly + "] using repository [" + actualRepositoryName + "] and repository type [" + actualRepositoryType + "]");

					// Lookup the repository in the map (as this may already be defined)
					rep = m_name2repositoryMap[actualRepositoryName] as ILoggerRepository;
					if (rep == null)
					{
						// Create the repository
						rep = CreateRepository(actualRepositoryName, actualRepositoryType);

						if (readAssemblyAttributes)
						{
							try
							{
								// Look for aliasing attributes
								LoadAliases(repositoryAssembly, rep);

								// Look for plugins defined on the assembly
								LoadPlugins(repositoryAssembly, rep);

								// Configure the repository using the assembly attributes
								ConfigureRepository(repositoryAssembly, rep);
							}
							catch (Exception ex)
							{
								LogLog.Error(declaringType, "Failed to configure repository [" + actualRepositoryName + "] from assembly attributes.", ex);
							}
						}
					}
					else
					{
						LogLog.Debug(declaringType, "repository [" + actualRepositoryName + "] already exists, using repository type [" + rep.GetType().FullName + "]");

						if (readAssemblyAttributes)
						{
							try
							{
								// Look for plugins defined on the assembly
								LoadPlugins(repositoryAssembly, rep);
							}
							catch (Exception ex)
							{
								LogLog.Error(declaringType, "Failed to configure repository [" + actualRepositoryName + "] from assembly attributes.", ex);
							}
						}
					}
					m_assembly2repositoryMap[repositoryAssembly] = rep;
				}
				return rep;
			}
		}