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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.util;

import org.jgroups.Address;
import org.jgroups.Global;
import org.jgroups.blocks.LazyRemovalCache;

import java.util.Collection;
import java.util.Map;

/**
 * Maintains the mappings between addresses and logical names (moved out of UUID.cache into a separate class)
 * @author Bela Ban
 * @since  4.0
 */
public class NameCache {

    /** Keeps track of associations between addresses and logical names */
    protected static final LazyRemovalCache cache;

    protected static final LazyRemovalCache.Printable> print_function
      =(key, entry) -> entry.getVal() + ": " + (key instanceof UUID? ((UUID)key).toStringLong() : key) + "\n";


    static {
        int max_elements=500;
        long max_age=5000L;

        try {
            String tmp=Util.getProperty(new String[]{Global.NAME_CACHE_MAX_ELEMENTS}, null, null, "500");
            if(tmp != null)
                max_elements=Integer.parseInt(tmp);
        }
        catch(Throwable t) {
        }

        try {
            String tmp=Util.getProperty(new String[]{Global.NAME_CACHE_MAX_AGE}, null, null, "120000");
            if(tmp != null)
                max_age=Long.parseLong(tmp);
        }
        catch(Throwable t) {
        }

        cache=new LazyRemovalCache<>(max_elements, max_age);
    }


    public static void add(Address uuid, String logical_name) {
        cache.add(uuid, logical_name); // overwrite existing entry
    }

    public static void add(Map map) {
        if(map == null) return;
        for(Map.Entry entry: map.entrySet())
            add(entry.getKey(), entry.getValue());
    }

    public static String get(Address logical_addr) {
        return cache.get(logical_addr);
    }

    /** Returns a copy of the cache's contents */
    public static Map getContents() {
        return cache.contents();
    }

    public static void remove(Address addr) {
        cache.remove(addr);
    }

    public static void removeAll(Collection mbrs) {
        cache.removeAll(mbrs);
    }

    public static void retainAll(Collection logical_addrs) {
        cache.retainAll(logical_addrs);
    }

    public static String printCache() {
        return cache.printCache(print_function);
    }

}