org.jgroups.protocols.relay.SiteUUID Maven / Gradle / Ivy

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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.protocols.relay;

import org.jgroups.Address;
import org.jgroups.util.AsciiString;
import org.jgroups.util.ExtendedUUID;
import org.jgroups.util.UUID;
import org.jgroups.util.Util;

import java.util.Arrays;

/**
 * Implementation of SiteAddress
 * @author Bela Ban
 * @since 3.2
 */
public class SiteUUID extends ExtendedUUID implements SiteAddress {
    protected static final byte[] NAME      = Util.stringToBytes("relay2.name"); // logical name, can be null
    protected static final byte[] SITE_NAME = Util.stringToBytes("relay2.site");
    private static final long     serialVersionUID=7128439052905502361L;


    public SiteUUID() {
    }

    public SiteUUID(long mostSigBits, long leastSigBits, String name, String site) {
        super(mostSigBits,leastSigBits);
        if(name != null)
            put(NAME, Util.stringToBytes(name));
        put(SITE_NAME, Util.stringToBytes(site));
    }

    public SiteUUID(long mostSigBits, long leastSigBits, byte[] name, byte[] site) {
        super(mostSigBits,leastSigBits);
        if(name != null)
            put(NAME, name);
        put(SITE_NAME, site);
    }

    public SiteUUID(UUID uuid, String name, String site) {
        super(uuid.getMostSignificantBits(), uuid.getLeastSignificantBits());
        if(name != null)
            put(NAME, Util.stringToBytes(name));
        put(SITE_NAME, Util.stringToBytes(site));
    }

    public String getName() {
        return Util.bytesToString(get(NAME));
    }

    public String getSite() {
        return Util.bytesToString(get(SITE_NAME));
    }

    public UUID copy() {
        return new SiteUUID(mostSigBits, leastSigBits, get(NAME), get(SITE_NAME));
    }

    @Override
    public String toString() {
        return print(false);
    }

    @Override
    public int compareTo(Address other) {
        if (other instanceof SiteUUID) {
            int siteCompare = Util.compare(get(SITE_NAME), ((SiteUUID) other).get(SITE_NAME));
            //compareTo will check the bits.
            return siteCompare == 0 ? super.compareTo(other) : siteCompare;
        }
        return super.compareTo(other);
    }

    public String print(boolean detailed) {
        String name=getName();
        String retval=name != null? name : get(this);
        return retval + ":" + getSite() + (detailed? printOthers() : "");
    }

    protected String printOthers() {
        StringBuilder sb=new StringBuilder();
        if(flags != 0)
            sb.append(" flags=" + flags + " (" + flagsToString() + ")");
        if(keys == null)
            return sb.toString();
        for(int i=0; i < keys.length; i++) {
            byte[] key=keys[i];
            if(key == null || Arrays.equals(key,SITE_NAME) || Arrays.equals(key, NAME))
                continue;
            byte[] val=values[i];
            Object obj=null;
            try {
                obj=Util.objectFromByteBuffer(val);
            }
            catch(Throwable t) {
            }
            if(obj == null) {
                try {
                    obj=Util.bytesToString(val);
                }
                catch(Throwable t) {
                    obj=val != null? val.length + " bytes" : null;
                }
            }

            sb.append(", ").append(new AsciiString(key)).append("=").append(obj);
        }
        return sb.toString();
    }
}