// <summary>
// Sets the EntityFramework "defaultConnectionFactory" in the given XML document representing a
// .config file to use th given specification. This method differs from AddConnectionFactoryToConfig
// in that it always sets the entry to use the given specification even if it was already present
// and set to something else.
// </summary>
// <param name="config"> An XML document representing the config file. </param>
// <param name="specification"> Specifies the connection factory and constructor arguments to use. </param>
// <returns> True if the document was modified; false if no change was made. </returns>
public virtual bool AddOrUpdateConnectionFactoryInConfig(XDocument config, ConnectionFactorySpecification specification)
{
DebugCheck.NotNull(config);
var connectionFactoryElement = config
.GetOrCreateElement(ConfigurationElementName)
.GetOrCreateElement(EntityFrameworkElementName)
.GetOrCreateElement(DefaultConnectionFactoryElementName);
var currentFactoryAttribute = connectionFactoryElement.Attribute("type");
if (currentFactoryAttribute != null &&
specification.ConnectionFactoryName.Equals(currentFactoryAttribute.Value, StringComparison.OrdinalIgnoreCase) &&
FactoryArgumentsMatch(connectionFactoryElement, specification))
{
return(false);
}
connectionFactoryElement.RemoveAll();
connectionFactoryElement.Add(new XAttribute("type", specification.ConnectionFactoryName));
AddFactoryArguments(connectionFactoryElement, specification);
return(true);
}
private void AddFactoryArguments(XElement factoryElement, ConnectionFactorySpecification specification)
{
if (specification.ConstructorArguments.Any())
{
var parametersElement = factoryElement.GetOrCreateElement(ParametersElementName);
specification.ConstructorArguments.Each(
a => parametersElement.Add(new XElement(ParameterElementName, new XAttribute("value", a))));
}
}
private bool FactoryArgumentsMatch(XElement factoryElement, ConnectionFactorySpecification specification)
{
var parametersElement = factoryElement.Element(ParametersElementName);
var currentParameters = parametersElement == null
? new string[0]
: parametersElement.Elements(ParameterElementName)
.Select(e => e.Attribute("value").Value);
return(currentParameters.SequenceEqual(specification.ConstructorArguments));
}
// <summary>
// Checks whether or not the given XML document representing a .config file contains
// an EntityFramework "defaultConnectionFactory" entry or not. If no entry is found then one
// is added for the given connection factory specification.
// </summary>
// <param name="config"> An XML document representing the config file. </param>
// <param name="specification"> Specifies the connection factory and constructor arguments to use. </param>
// <returns> True if the document was modified; false if no change was made. </returns>
public virtual bool AddConnectionFactoryToConfig(XDocument config, ConnectionFactorySpecification specification)
{
DebugCheck.NotNull(config);
DebugCheck.NotNull(specification);
var entityFramework = config
.GetOrCreateElement(ConfigurationElementName)
.GetOrCreateElement(EntityFrameworkElementName);
if (entityFramework.Elements(DefaultConnectionFactoryElementName).Any())
{
return(false);
}
var factoryElement = entityFramework
.GetOrCreateElement(
DefaultConnectionFactoryElementName,
new XAttribute("type", specification.ConnectionFactoryName));
AddFactoryArguments(factoryElement, specification);
return(true);
}
// <summary>
// Checks whether or not the given XML document representing a .config file contains
// an EntityFramework "defaultConnectionFactory" entry or not. If no entry is found then one
// is added for the given connection factory specification.
// </summary>
// <param name="config"> An XML document representing the config file. </param>
// <param name="specification"> Specifies the connection factory and constructor arguments to use. </param>
// <returns> True if the document was modified; false if no change was made. </returns>
public virtual bool AddConnectionFactoryToConfig(XDocument config, ConnectionFactorySpecification specification)
{
DebugCheck.NotNull(config);
DebugCheck.NotNull(specification);
var entityFramework = config
.GetOrCreateElement(ConfigurationElementName)
.GetOrCreateElement(EntityFrameworkElementName);
if (entityFramework.Elements(DefaultConnectionFactoryElementName).Any())
{
return false;
}
var factoryElement = entityFramework
.GetOrCreateElement(
DefaultConnectionFactoryElementName,
new XAttribute("type", specification.ConnectionFactoryName));
AddFactoryArguments(factoryElement, specification);
return true;
}
/// <summary>
/// Sets the EntityFramework "defaultConnectionFactory" in the given XML document representing a
/// .config file to use th given specification. This method differs from AddConnectionFactoryToConfig
/// in that it always sets the entry to use the given specification even if it was already present
/// and set to something else.
/// </summary>
/// <param name="config"> An XML document representing the config file.</param>
/// <param name="specification"> Specifies the connection factory and constructor arguments to use.</param>
/// <returns>True if the document was modified; false if no change was made.</returns>
public virtual bool AddOrUpdateConnectionFactoryInConfig(XDocument config, ConnectionFactorySpecification specification)
{
Contract.Requires(config != null);
var connectionFactoryElement = config
.GetOrCreateElement(ConfigurationElementName)
.GetOrCreateElement(EntityFrameworkElementName)
.GetOrCreateElement(DefaultConnectionFactoryElementName);
var currentFactoryAttribute = connectionFactoryElement.Attribute("type");
if (currentFactoryAttribute != null
&& specification.ConnectionFactoryName.Equals(currentFactoryAttribute.Value, StringComparison.OrdinalIgnoreCase))
{
return false;
}
connectionFactoryElement.RemoveAll();
connectionFactoryElement.Add(new XAttribute("type", specification.ConnectionFactoryName));
AddFactoryArguments(connectionFactoryElement, specification);
return true;
}
private void AddFactoryArguments(XElement factoryElement, ConnectionFactorySpecification specification)
{
if (specification.ConstructorArguments.Any())
{
var parametersElement = factoryElement.GetOrCreateElement(ParametersElementName);
specification.ConstructorArguments.Each(
a => parametersElement.Add(new XElement(ParameterElementName, new XAttribute("value", a))));
}
}
private bool FactoryArgumentsMatch(XElement factoryElement, ConnectionFactorySpecification specification)
{
var parametersElement = factoryElement.Element(ParametersElementName);
var currentParameters = parametersElement == null
? new string[0]
: parametersElement.Elements(ParameterElementName)
.Select(e => e.Attribute("value").Value);
return currentParameters.SequenceEqual(specification.ConstructorArguments);
}
