[LOG4NET-31] Allow user to pass in additional parameters to <converter> node via some kind of <property> tag

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.2.11
• Assignee: liu ron
• Reporter: liu ron
• Created: 20/May/05 01:26
• Updated: 13/Jan/08 18:48
• Resolved: 13/Jan/08 18:48

Description

It would be useful if the user was able to supply additional properties to the <convert> tag in the form of:

<property name="foo" value="bar" />
<property name="Hello" value="World" />

The code below uses a <property> node to determine if the HomeAddress or the WorkAddress will appear in the log message. If the parameter is not present, the converter prints a default value.

<converter>
<name value="user-converter" />
<type value="Company.Project.Logging.UserConverter, Company.Project" />
<property name="Address" value="HomeAddress" />
</converter>
<conversionPattern value="%p %d %user-converter

{Nicko}

- %m%n" />

The <property> tags would be accessible via a Properties IDictionary. It would allow the converter to perform additional logic on the base.Option that was passed in:

public class MyConverter : PatternConverter
{
override protected void Convert(TextWriter writer, object state)
{
User user = GetUserByUserName(base.Option);
string address = base.Properties["Address"] as string;
if (address != null && address.Length > 0)
{
if (user != null)
{
switch (address)

{ case "HomeAddress": writer.Write(user.HomeAddress); break; case "WorkAddress": writer.Write(user.WorkdAddress); break; }

}
else

{ // ??? }

}
else

{ // default display writer.Write(user.HomeAddress); break; }

}
}

Issue Links

• incorporates: LOG4NET-53 Allow repository properties to be set in the config file