org.jgroups.protocols.Frag3Header 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).
package org.jgroups.protocols;
import org.jgroups.Header;
import org.jgroups.util.Bits;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.function.Supplier;
/**
* @author Bela Ban
*/
public class Frag3Header extends Header {
protected int id; // unique sequence number - same for all fragments of a given original message
protected int frag_id; // the ID of the frag, starting with 0. E.g. 4 fragments will have IDs from 0 to 3
protected int num_frags; // the total number of fragments
protected int original_length; // the length of the original message
protected int offset; // offset of this fragment in the original message; length is in Message.getLength()
public Frag3Header() {
} // used for externalization
public Frag3Header(int id, int frag_id, int num_frags) {
this.id=id;
this.frag_id=frag_id;
this.num_frags=num_frags;
}
public Frag3Header(int id, int frag_id, int num_frags, int original_length, int offset) {
this.id=id;
this.frag_id=frag_id;
this.num_frags=num_frags;
this.original_length=original_length;
this.offset=offset;
}
public short getMagicId() {return 91;}
public Supplier extends Header> create() {
return Frag3Header::new;
}
public String toString() {
return String.format("[id=%d, frag-id=%d, num_frags=%d orig-length=%d, offset=%d]",
id, frag_id, num_frags, original_length, offset);
}
@Override
public void writeTo(DataOutput out) throws IOException {
Bits.writeInt(id,out);
Bits.writeInt(frag_id, out);
Bits.writeInt(num_frags, out);
Bits.writeInt(original_length, out);
Bits.writeInt(offset, out);
}
@Override
public int serializedSize() {
return Bits.size(id) + Bits.size(frag_id) + Bits.size(num_frags) + Bits.size(original_length) + Bits.size(offset);
}
@Override
public void readFrom(DataInput in) throws IOException {
id=Bits.readInt(in);
frag_id=Bits.readInt(in);
num_frags=Bits.readInt(in);
original_length=Bits.readInt(in);
offset=Bits.readInt(in);
}
}