Enterprise Library Test Guide - Willy .Net

130
Enterprise Library Test Guide
No. Scenario
26 The Tracer class marks the start and end of a transaction.
27 The LoggingDatabase.SQL and CreateLoggingDb.Cmd methods create logging databases.
(The Enterprise Library Windows Installer creates these methods.)
28 The LogWriterFactory class creates LogWriter objects.
29 The LogSource class specifies the trace listeners that log the messages.
30 The TracerInstrumentationListener class instruments Tracer class tracing operations.
Identify the External Dependencies
External dependencies are other components in the Enterprise Library or external
resources such as databases and mail servers that the Logging Application Block can
use. If a malicious user misuses any of these dependencies then the security of the
application block may be compromised. The data direction matters because “push”
and “pull” have different security implications. The Logging Application Block
receives data that moves in the “pull” direction. For example, it receives configuration
information from the Enterprise Library Core. It is important to know that this
information is reliable. The application block can also “push” information to output
sources, such as a database or event log. It is important to know that the output
source will not be corrupted by the information.
Table 4 lists the Logging Application Block external dependencies.
Table 4: Logging Application Block External Dependencies
External
No. Dependencies
1 Enterprise
Library core
2 Data Access
Application
Block
Descriptions
The Enterprise Library Core reads and writes configuration
information that is used by the Logging
Application Block.
The Logging Application Block can use the Data
Access Application Block to log messages to a
database.
3 SMTP server The Logging Application Block can use an SMTP
server to e-mail log messages.
4 File system The Logging Application Block can use the file
system to save log messages in a flat file.
5 Database The Logging Application Block can save log messages
to a database.
6 Message
queuing
The Logging Application Block uses message
queuing to distribute log messages. The application
block can send these messages to a remote
computer.
7 Event log The Logging Application Block can save log messages
to the event log.
Data
Direction
Pull
Push
Push
Push
Push
Push
Push
Trusted?
Yes
Yes
Yes
Yes
Yes
Yes
Yes