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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging 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.stack;


import org.jgroups.Address;
import org.jgroups.Global;
import org.jgroups.PhysicalAddress;
import org.jgroups.util.Bits;
import org.jgroups.util.SizeStreamable;
import org.jgroups.util.Util;

import java.io.DataInput;
import java.io.DataOutput;
import java.util.*;


/**
 * Encapsulates data sent between GossipRouter and GossipClient
 * @author Bela Ban Oct 4 2001
 */
public class GossipData implements SizeStreamable {
    byte            type;          // One of GossipRouter type, e.g. CONNECT, REGISTER etc
    String          group;         // CONNECT, GET_REQ and GET_RSP
    Address         addr;          // CONNECT
    String          logical_name;
    List   mbrs;          // GET_RSP
    PhysicalAddress physical_addr; // GET_RSP, GET_REQ
    byte[]          buffer;        // MESSAGE
    int             offset;
    int             length;

    public GossipData() { // for streamable
    }

    public GossipData(byte type) {
        this.type=type;
    }

    public GossipData(byte type, String group, Address addr) {
        this(type);
        this.group=group;
        this.addr=addr;
    }

    public GossipData(byte type, String group, Address addr, List mbrs) {
        this(type, group, addr);
        this.mbrs=mbrs;
    }

    /** @deprecated Use the constructor wityh a single PhysicalAddress instead */
    @Deprecated
    public GossipData(byte type, String group, Address addr, List mbrs, List physical_addrs) {
        this(type, group, addr, mbrs);
        if(physical_addrs != null && !physical_addrs.isEmpty())
            physical_addr=physical_addrs.get(0);
    }

    public GossipData(byte type, String group, Address addr, List mbrs, PhysicalAddress physical_addr) {
        this(type, group, addr, mbrs);
        this.physical_addr=physical_addr;
    }

    /** @deprecated Use the constructor wityh a single PhysicalAddress instead */
    @Deprecated
    public GossipData(byte type, String group, Address addr, String logical_name, List physical_addrs) {
        this(type, group, addr);
        this.logical_name=logical_name;
        if(physical_addrs != null && !physical_addrs.isEmpty())
            physical_addr=physical_addrs.get(0);
    }

    public GossipData(byte type, String group, Address addr, String logical_name, PhysicalAddress physical_addr) {
        this(type, group, addr);
        this.logical_name=logical_name;
        this.physical_addr=physical_addr;
    }

    public GossipData(byte type, String group, Address addr, byte[] buffer) {
        this(type, group, addr, buffer, 0, buffer.length);
    }

    public GossipData(byte type, String group, Address addr, byte[] buffer, int offset, int length) {
        this(type, group, addr);
        this.buffer=buffer;
        this.offset=offset;
        this.length=length;
    }


    public byte             getType()        {return type;}
    public String           getGroup()       {return group;}
    public Address          getAddress()     {return addr;}
    public String           getLogicalName() {return logical_name;}
    public List    getMembers()     {return mbrs;}
    public byte[]           getBuffer()      {return buffer;}

    /** @deprecated Use {@link #getPhysicalAddress()} instead */
    @Deprecated
    public Collection getPhysicalAddresses() {return Arrays.asList(physical_addr);}

    public PhysicalAddress getPhysicalAddress() {return physical_addr;}

    public void setMembers(List mbrs) {
        this.mbrs=mbrs;
    }


    public String toString() {
        StringBuilder sb=new StringBuilder();
        sb.append(GossipRouter.type2String(type)).append( "(").append("group=").append(group).append(", addr=").append(addr);
        if(logical_name != null)
            sb.append(", logical_name=" + logical_name);
        if(mbrs != null && !mbrs.isEmpty())
            sb.append(", mbrs=").append(mbrs);
        if(physical_addr != null)
            sb.append(", physical_addr=").append(physical_addr);
        if(buffer != null)
            sb.append(", buffer: " + length + " bytes");
        sb.append(")");
        return sb.toString();
    }


    public void writeTo(DataOutput out) throws Exception {
        out.writeByte(type);
        Bits.writeString(group,out);
        Util.writeAddress(addr, out);
        Bits.writeString(logical_name,out);
        Util.writeAddresses(mbrs, out);
        Util.writeAddress(physical_addr, out);
        Util.writeByteBuffer(buffer, offset, length, out);
    }

    public void readFrom(DataInput in) throws Exception {
        type=in.readByte();
        group=Bits.readString(in);
        addr=Util.readAddress(in);
        logical_name=Bits.readString(in);
        mbrs=(List)Util.readAddresses(in, LinkedList.class);
        physical_addr=(PhysicalAddress)Util.readAddress(in);
        buffer=Util.readByteBuffer(in);
        if(buffer != null) {
            offset=0;
            length=buffer.length;
        }
    }


    public int size() {
        int retval=Global.BYTE_SIZE; // type
        retval+=Global.BYTE_SIZE * 3;     // presence byte for group and logical_name, buffer
        if(group != null)
            retval+=group.length() +2;
        retval+=Util.size(addr);
        if(logical_name != null)
            retval+=logical_name.length() +2;
        retval+=Util.size(mbrs);
        retval+=Util.size(physical_addr);
        if(buffer != null)
        retval+=Global.INT_SIZE + length;
        return retval;
    }


}