Move atomix-storage to a top-level directory

[controller.git] / third-party / atomix / storage / src / main / java / io / atomix / storage / journal / index / SparseJournalIndex.java

diff --git a/third-party/atomix/storage/src/main/java/io/atomix/storage/journal/index/SparseJournalIndex.java b/third-party/atomix/storage/src/main/java/io/atomix/storage/journal/index/SparseJournalIndex.java
deleted file mode 100644 (file)
index d4b65c8..0000000
--- a/third-party/atomix/storage/src/main/java/io/atomix/storage/journal/index/SparseJournalIndex.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2018-present Open Networking Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package io.atomix.storage.journal.index;
-
-import java.util.Map;
-import java.util.TreeMap;
-
-/**
- * Sparse index.
- */
-public class SparseJournalIndex implements JournalIndex {
-  private static final int MIN_DENSITY = 1000;
-  private final int density;
-  private final TreeMap<Long, Integer> positions = new TreeMap<>();
-
-  public SparseJournalIndex(double density) {
-    this.density = (int) Math.ceil(MIN_DENSITY / (density * MIN_DENSITY));
-  }
-
-  @Override
-  public void index(long index, int position) {
-    if (index % density == 0) {
-      positions.put(index, position);
-    }
-  }
-
-  @Override
-  public Position lookup(long index) {
-    Map.Entry<Long, Integer> entry = positions.floorEntry(index);
-    return entry != null ? new Position(entry.getKey(), entry.getValue()) : null;
-  }
-
-  @Override
-  public void truncate(long index) {
-    positions.tailMap(index, false).clear();
-  }
-}