+
+ return last().getTerm();
+ }
+
+ @Override public void removeFrom(long index) {
+ if(index >= log.size() || index < 0){
+ return;
+ }
+
+ log.subList((int) index, log.size()).clear();
+ //log.remove((int) index);
+ }
+
+ @Override public void removeFromAndPersist(long index) {
+ removeFrom(index);
+ }
+
+ @Override public void append(ReplicatedLogEntry replicatedLogEntry) {
+ log.add(replicatedLogEntry);
+ }
+
+ @Override public void appendAndPersist(
+ ReplicatedLogEntry replicatedLogEntry) {
+ append(replicatedLogEntry);
+ }
+
+ @Override public List<ReplicatedLogEntry> getFrom(long index) {
+ if(index >= log.size() || index < 0){
+ return Collections.EMPTY_LIST;
+ }
+ List<ReplicatedLogEntry> entries = new ArrayList<>();
+ for(int i=(int) index ; i < log.size() ; i++) {
+ entries.add(get(i));
+ }
+ return entries;
+ }
+
+ @Override public long size() {
+ return log.size();
+ }
+
+ @Override public boolean isPresent(long index) {
+ if(index >= log.size() || index < 0){
+ return false;
+ }
+
+ return true;
+ }
+
+ @Override public boolean isInSnapshot(long index) {
+ return false;
+ }
+
+ @Override public Object getSnapshot() {
+ return null;
+ }
+
+ @Override public long getSnapshotIndex() {
+ return -1;
+ }
+
+ @Override public long getSnapshotTerm() {
+ return -1;
+ }
+ }
+
+ public static class MockReplicatedLogEntry implements ReplicatedLogEntry {
+
+ private final long term;
+ private final long index;
+ private final Object data;
+
+ public MockReplicatedLogEntry(long term, long index, Object data){
+
+ this.term = term;
+ this.index = index;
+ this.data = data;
+ }
+
+ @Override public Object getData() {
+ return data;
+ }
+
+ @Override public long getTerm() {
+ return term;
+ }
+
+ @Override public long getIndex() {
+ return index;
+ }