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public interface DebugTrace
A DebugTrace is used to record debug trace statements, based on the current
option settings in a corresponding DebugOptions
class. The trace implementation
will automatically insert additional contextual information such as the bundle, class,
and method performing the tracing.
Trace statements may be written to a file, or onto standard output, depending on
how the DebugOptions
is configured.
All methods on this class have an optional option
argument.
When specified, this argument will cause the tracing to be conditional on the value
of DebugOptions.getBooleanOption(String, boolean)
, where the bundle's
symbolic name will automatically be prepended to the provided option string. For example,
if your bundle symbolic name is "com.acme.bundle", and you provide an option argument
of "/debug/parser", the trace will only be printed if the option "com.acme.bundle/debug/parser"
has a value of "true".
Note that the pipe character ("|") is reserved for internal use. If this character happens to occur in any of the thread name, the option, the message or an Exception message, it will be escaped to the corresponding HTML representation ("|").
Method Summary | |
---|---|
void |
trace(String option,
String message)
Traces a message for the specified option. |
void |
trace(String option,
String message,
Throwable error)
Traces a message and exception for the specified option. |
void |
traceDumpStack(String option)
Adds a trace message showing a thread stack dump for the current class and method being executed for the specified option. |
void |
traceEntry(String option)
Add a trace message level stating that a method is being executed for the specified option. |
void |
traceEntry(String option,
Object methodArgument)
Add a trace message level stating that a method with the specified argument values is being executed for the specified option. |
void |
traceEntry(String option,
Object[] methodArguments)
Add a trace message level stating that a method with the specified arguments values is being executed for the specified option. |
void |
traceExit(String option)
Add a trace message level stating that a method has completed execution for the specified option. |
void |
traceExit(String option,
Object result)
Add a trace message level stating that a method with the specified result value has completed execution for the specified option. |
Method Detail |
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void trace(String option, String message)
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
message
- The trace message to displayvoid trace(String option, String message, Throwable error)
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
message
- The trace message to displayerror
- The exception to tracevoid traceDumpStack(String option)
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
void traceEntry(String option)
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
void traceEntry(String option, Object methodArgument)
String.valueOf(Object)
on the methodArgument will be written to the trace file.
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
methodArgument
- The single argument for the method being executedvoid traceEntry(String option, Object[] methodArguments)
String.valueOf(Object)
on each argument will be written to the trace file.
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
methodArguments
- A list of object arguments for the method being executedvoid traceExit(String option)
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
void traceExit(String option, Object result)
String.valueOf(Object)
on the result object will be written to the trace file.
option
- The name of the boolean option that will control whether the
trace statement is printed (e.g., "/debug/myComponent"), or null
result
- The result being returned from the method that was executed
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Guidelines for using Eclipse APIs.
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