opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/Snapshot.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.raft;
   9
  10 import java.io.Serializable;
  11 import java.util.List;
  12
  13
  14 public class Snapshot implements Serializable {
  15     private static final long serialVersionUID = -8298574936724056236L;
  16
  17     private final byte[] state;
  18     private final List<ReplicatedLogEntry> unAppliedEntries;
  19     private final long lastIndex;
  20     private final long lastTerm;
  21     private final long lastAppliedIndex;
  22     private final long lastAppliedTerm;
  23     private final long electionTerm;
  24     private final String electionVotedFor;
  25
  26     private Snapshot(byte[] state, List<ReplicatedLogEntry> unAppliedEntries, long lastIndex, long lastTerm,
  27             long lastAppliedIndex, long lastAppliedTerm, long electionTerm, String electionVotedFor) {
  28         this.state = state;
  29         this.unAppliedEntries = unAppliedEntries;
  30         this.lastIndex = lastIndex;
  31         this.lastTerm = lastTerm;
  32         this.lastAppliedIndex = lastAppliedIndex;
  33         this.lastAppliedTerm = lastAppliedTerm;
  34         this.electionTerm = electionTerm;
  35         this.electionVotedFor = electionVotedFor;
  36     }
  37
  38     public static Snapshot create(byte[] state, List<ReplicatedLogEntry> entries, long lastIndex, long lastTerm,
  39             long lastAppliedIndex, long lastAppliedTerm) {
  40         return new Snapshot(state, entries, lastIndex, lastTerm, lastAppliedIndex, lastAppliedTerm, -1, null);
  41     }
  42
  43     public static Snapshot create(byte[] state, List<ReplicatedLogEntry> entries, long lastIndex, long lastTerm,
  44             long lastAppliedIndex, long lastAppliedTerm, long electionTerm, String electionVotedFor) {
  45         return new Snapshot(state, entries, lastIndex, lastTerm, lastAppliedIndex, lastAppliedTerm,
  46                 electionTerm, electionVotedFor);
  47     }
  48
  49     public byte[] getState() {
  50         return state;
  51     }
  52
  53     public List<ReplicatedLogEntry> getUnAppliedEntries() {
  54         return unAppliedEntries;
  55     }
  56
  57     public long getLastTerm() {
  58         return lastTerm;
  59     }
  60
  61     public long getLastAppliedIndex() {
  62         return lastAppliedIndex;
  63     }
  64
  65     public long getLastAppliedTerm() {
  66         return lastAppliedTerm;
  67     }
  68
  69     public long getLastIndex() {
  70         return this.lastIndex;
  71     }
  72
  73     public long getElectionTerm() {
  74         return electionTerm;
  75     }
  76
  77
  78     public String getElectionVotedFor() {
  79         return electionVotedFor;
  80     }
  81
  82     @Override
  83     public String toString() {
  84         return "Snapshot [lastIndex=" + lastIndex + ", lastTerm=" + lastTerm + ", lastAppliedIndex=" + lastAppliedIndex
  85                 + ", lastAppliedTerm=" + lastAppliedTerm + ", unAppliedEntries size=" + unAppliedEntries.size()
  86                 + ", state size=" + state.length + ", electionTerm=" + electionTerm + ", electionVotedFor=" + electionVotedFor
  87                 + "]";
  88     }
  89 }