Skip to content

Commit

Permalink
Update of the FAQ Log entry
Browse files Browse the repository at this point in the history
Lets promote ILog.get() instead Platform.getLog():
  • Loading branch information
vogella committed Nov 20, 2024
1 parent 6dd6732 commit 715490c
Showing 1 changed file with 19 additions and 18 deletions.
37 changes: 19 additions & 18 deletions docs/FAQ/FAQ_How_do_I_use_the_platform_logging_facility.md
Original file line number Diff line number Diff line change
@@ -1,39 +1,40 @@


FAQ How do I use the platform logging facility?
===============================================

The Eclipse runtime plug-in provides a simple set of APIs for logging exceptions, warnings, or other information useful in debugging or servicing a deployed Eclipse product. The intent of the log is to record information that can be used later to diagnose problems in the field. Because this information is not directed at users, you do not need to worry about translating messages or simplifying explanations into a form that users will understand. The idea is that when things go wrong in the field, your users can send you the log file to help you figure out what happened.
The Eclipse ILog class provides a simple set of APIs for logging exceptions, warnings, or other information useful in debugging or servicing a deployed Eclipse product.
The intent of the log is to record information that can be used later to diagnose problems in the field.
Because this information is not directed at users, you do not need to worry about translating messages or simplifying explanations into a form that users will understand.
The idea is that when things go wrong in the field, your users can send you the log file to help you figure out what happened.

Each plug-in has its own log associated with it, but all logged information eventually makes its way into the platform log file (see the getLogFileLocation method on Platform).

You can write any kind of IStatus object to the log file, including a MultiStatus if you have hierarchies of information to display. If you create your own subclass of the utility class Status, you can override the getMessage method to return extra information to be displayed in the log file. Many plug-ins add utility classes for writing messages and errors to the log:
You can write any kind of IStatus object to the log file, including a MultiStatus if you have hierarchies of information to display.
If you create your own subclass of the utility class Status, you can override the getMessage method to return extra information to be displayed in the log file. Many plug-ins add utility classes for writing messages and errors to the log:

import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.ILog;
...
public class MyLogger {
...
private static final Bundle BUNDLE = FrameworkUtil.getBundle(MyLogger.class);
private static final ILog LOGGER = Platform.getLog(BUNDLE);

...
public static void test(){
try {
log("Eclipse Style Logging");
ILog.get().info("Starting");
try {
// do something that may cause an exception
}
catch(Exception e){
log("Oops!", e);
}
ILog.get().error("Generating template failed!", e);
}
ILog.get().warn("Creating a warning..");
}

public static void log(String msg) {
log(msg, null);
}

public static void log(String msg, Exception e) {
LOGGER.log(new Status((e==null?Status.INFO:Status.ERROR), BUNDLE.getSymbolicName(), msg, e));
}

During development, you can browse and manipulate the platform log file using the Error Log view (**Window > Show View > General > Error Log**). You can also have the log file mirrored in the Java console by starting Eclipse with the -consoleLog command-line argument.
During development, you can browse and manipulate the platform log file using the Error Log view (**Window > Show View > General > Error Log**).
You can also have the log file mirrored in the Java console by starting Eclipse with the -consoleLog command-line argument.

eclipse -vm c:\\jre\\bin\\java.exe -consoleLog

Expand Down

0 comments on commit 715490c

Please sign in to comment.