eu.xenit.alfred.telemetry.solr.util.Util Maven / Gradle / Ivy

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package eu.xenit.alfred.telemetry.solr.util;

import java.util.*;
import java.util.stream.Collectors;

public class Util {
    // everything is enabled by default except graphite registry, tomcat and jetty metrics
    private static final Set DEFAULT_DISABLED_CONFIGS;
    static {
        Set configs = new HashSet<>();
        configs.add("ALFRED_TELEMETRY_EXPORT_GRAPHITE_ENABLED");
        configs.add("METRICS_TOMCAT_ENABLED");
        configs.add("METRICS_JETTY_ENABLED");
        DEFAULT_DISABLED_CONFIGS = Collections.unmodifiableSet(configs);
    }

    private Util() {
        // private ctor to hide implicit public one
    }

    public static List parseList(final String listAsString) {
        return parseList(listAsString, ",");
    }

    public static List parseList(final String listAsString, final String splitCharacter) {
        if (listAsString == null || listAsString.trim().isEmpty()) {
            return Collections.emptyList();
        }

        return Arrays.stream(listAsString.split(splitCharacter))
                .map(String::trim)
                .filter(s -> !s.isEmpty())
                .collect(Collectors.toList());
    }

    public static boolean isEnabled(String env) {
        if(System.getenv(env)!=null) {
            return Boolean.parseBoolean(System.getenv(env));
        }

        return (DEFAULT_DISABLED_CONFIGS.contains(env)?false:true);
    }

    public static boolean isVersionLowerThan2() {
        try {
            Class cachedDocTransformerFactory = Class.forName("org.alfresco.solr.transformer.CachedDocTransformerFactory");
        } catch (ClassNotFoundException e) {
            return false;
        }
        return true;
    }
}