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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Macros

We can create macros to add logic to our garbage collection logging. Here is the general syntax for the log macro:

    log_<level>(Tag1[,...])(fmtstr, ...)

Here is an example of a log macro:

    log_debug(gc, classloading)("Number of objects     loaded: %d.", object_count)

The following example skeleton log macro shows how you can use the new Java 9 logging framework to create scripts for greater fidelity in logging:

    LogHandle(gc, rt, classunloading) log;    if (log.is_error())    {      // do something specific regarding the 'error' level    }    if (log.is_warning())    {      // do something specific regarding the 'warning'      level    }    if (log.is_info())    {      // do something specific regarding the 'info' level    }    if (log.is_debug())    { // do something specific regarding ...
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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page