Project In-Line Help: Difference between revisions
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try { | try { | ||
System.out.println(InLineHelp.get()); | System.out.println(InLineHelp.get()); | ||
} | } | ||
catch(UserErrorException e) { | catch(UserErrorException e) { | ||
System.err.println(e.getMessage()); | System.err.println(e.getMessage()); | ||
} | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 00:17, 24 August 2017
Internal
Overview
The best mechanism so far to display in-line help is to maintain a help.txt file within the resources of the project, embed it into the root of the JAR artifact and dump it at stdout when needed.
Place the text help file ("help.txt" or "HELP.txt") in ./src/main/resources of the project, so it will be automatically bundled by Maven into the final JAR.
The code that reads the help file is the self-contained class InLineHelp that can be placed in the util package of the project.
Implementation
There's a novaordis-utilities version, in case the project already depends on novaordis-utilities:
InLineHelp.java can be used as a starting point for a standalone implementation.
Usage
try {
System.out.println(InLineHelp.get());
}
catch(UserErrorException e) {
System.err.println(e.getMessage());
}