@Override
public void onInit(List<? extends IndexCommit> commits) throws IOException {
verifyCommitOrder(commits);
numOnInit++;
// On init, delete all commit points:
for (final IndexCommit commit : commits) {
commit.delete();
assertTrue(commit.isDeleted());
}
}
@Override
public void delete() {
synchronized (SnapshotDeletionPolicy.this) {
// Suppress the delete request if this commit point is
// currently snapshotted.
if (shouldDelete(getSegmentsFileName())) {
cp.delete();
}
}
}
@Override
public void onCommit(List<? extends IndexCommit> commits) throws IOException {
verifyCommitOrder(commits);
IndexCommit lastCommit = commits.get(commits.size() - 1);
// Any commit older than expireTime should be deleted:
double expireTime = getCommitTime(lastCommit) / 1000.0 - expirationTimeSeconds;
for (final IndexCommit commit : commits) {
double modTime = getCommitTime(commit) / 1000.0;
if (commit != lastCommit && modTime < expireTime) {
commit.delete();
numDelete += 1;
}
}
}