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 final byte[] state;
  16     private final List<ReplicatedLogEntry> unAppliedEntries;
  17     private final long lastIndex;
  18     private final long lastTerm;
  19     private final long lastAppliedIndex;
  20     private final long lastAppliedTerm;
  21
  22     private Snapshot(byte[] state,
  23         List<ReplicatedLogEntry> unAppliedEntries, long lastIndex,
  24         long lastTerm, long lastAppliedIndex, long lastAppliedTerm) {
  25         this.state = state;
  26         this.unAppliedEntries = unAppliedEntries;
  27         this.lastIndex = lastIndex;
  28         this.lastTerm = lastTerm;
  29         this.lastAppliedIndex = lastAppliedIndex;
  30         this.lastAppliedTerm = lastAppliedTerm;
  31     }
  32
  33
  34     public static Snapshot create(byte[] state,
  35         List<ReplicatedLogEntry> entries, long lastIndex, long lastTerm,
  36         long lastAppliedIndex, long lastAppliedTerm) {
  37         return new Snapshot(state, entries, lastIndex, lastTerm,
  38             lastAppliedIndex, lastAppliedTerm);
  39     }
  40
  41     public byte[] getState() {
  42         return state;
  43     }
  44
  45     public List<ReplicatedLogEntry> getUnAppliedEntries() {
  46         return unAppliedEntries;
  47     }
  48
  49     public long getLastTerm() {
  50         return lastTerm;
  51     }
  52
  53     public long getLastAppliedIndex() {
  54         return lastAppliedIndex;
  55     }
  56
  57     public long getLastAppliedTerm() {
  58         return lastAppliedTerm;
  59     }
  60
  61     public long getLastIndex() {
  62         return this.lastIndex;
  63     }
  64
  65     public String getLogMessage() {
  66         StringBuilder sb = new StringBuilder();
  67         return sb.append("Snapshot={")
  68             .append("lastTerm:" + this.getLastTerm() + ", ")
  69             .append("lastIndex:" + this.getLastIndex()  + ", ")
  70             .append("LastAppliedIndex:" + this.getLastAppliedIndex()  + ", ")
  71             .append("LastAppliedTerm:" + this.getLastAppliedTerm()  + ", ")
  72             .append("UnAppliedEntries size:" + this.getUnAppliedEntries().size()  + "}")
  73             .toString();
  74
  75     }
  76 }