Examples with ClassPath com.google.common.reflect.ClassPath used on opensource projects

Example 26 with ClassPath

use of com.google.common.reflect.ClassPath in project zuul by Netflix.

the class ZuulFiltersModule method findClassNames.

// Get compiled filter classes to be found on classpath.
@VisibleForTesting
String[] findClassNames(AbstractConfiguration config) {
    // Find individually-specified filter classes.
    String[] filterClassNamesStrArray = config.getStringArray("zuul.filters.classes");
    Stream<String> classNameStream = Arrays.stream(filterClassNamesStrArray).map(String::trim).filter(blank.negate());
    // Find filter classes in specified packages.
    String[] packageNamesStrArray = config.getStringArray("zuul.filters.packages");
    ClassPath cp;
    try {
        cp = ClassPath.from(this.getClass().getClassLoader());
    } catch (IOException e) {
        throw new RuntimeException("Error attempting to read classpath to find filters!", e);
    }
    Stream<String> packageStream = Arrays.stream(packageNamesStrArray).map(String::trim).filter(blank.negate()).flatMap(packageName -> cp.getTopLevelClasses(packageName).stream()).map(ClassPath.ClassInfo::load).filter(ZuulFilter.class::isAssignableFrom).map(Class::getCanonicalName);
    String[] filterClassNames = Stream.concat(classNameStream, packageStream).toArray(String[]::new);
    if (filterClassNames.length != 0) {
        LOG.info("Using filter classnames: ");
        for (String location : filterClassNames) {
            LOG.info("  " + location);
        }
    }
    return filterClassNames;
}