Examples with PluginCache org.apache.logging.log4j.plugins.processor.PluginCache used on opensource projects

Example 1 with PluginCache

use of org.apache.logging.log4j.plugins.processor.PluginCache in project logging-log4j2 by apache.

the class PluginRegistry method decodeCacheFiles.

private Map<String, List<PluginType<?>>> decodeCacheFiles(final ClassLoader loader) {
    final long startTime = System.nanoTime();
    final PluginCache cache = new PluginCache();
    try {
        final Enumeration<URL> resources = loader.getResources(PluginManager.PLUGIN_CACHE_FILE);
        if (resources == null) {
            LOGGER.info("Plugin preloads not available from class loader {}", loader);
        } else {
            cache.loadCacheFiles(resources);
        }
    } catch (final IOException ioe) {
        LOGGER.warn("Unable to preload plugins", ioe);
    }
    final Map<String, List<PluginType<?>>> newPluginsByCategory = new HashMap<>();
    int pluginCount = 0;
    for (final Map.Entry<String, Map<String, PluginEntry>> outer : cache.getAllCategories().entrySet()) {
        final String categoryLowerCase = outer.getKey();
        final List<PluginType<?>> types = new ArrayList<>(outer.getValue().size());
        newPluginsByCategory.put(categoryLowerCase, types);
        for (final Map.Entry<String, PluginEntry> inner : outer.getValue().entrySet()) {
            final PluginEntry entry = inner.getValue();
            final String className = entry.getClassName();
            final PluginType<?> type = new PluginType<>(entry, loader);
            types.add(type);
            ++pluginCount;
        }
    }
    final int numPlugins = pluginCount;
    LOGGER.debug(() -> {
        final long endTime = System.nanoTime();
        StringBuilder sb = new StringBuilder("Took ");
        final DecimalFormat numFormat = new DecimalFormat("#0.000000");
        sb.append(numFormat.format((endTime - startTime) * 1e-9));
        sb.append(" seconds to load ").append(numPlugins);
        sb.append(" plugins from ").append(loader);
        return sb.toString();
    });
    return newPluginsByCategory;
}