/*
 * Licensed to the University of California, Berkeley under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You 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 tachyon.worker.block.evictor;

import java.util.List;

import com.google.common.base.Preconditions;

import tachyon.Pair;

/**
 * This class provides information about the blocks that need to be moved when evicting.
 */
public class EvictionPlan {
  /** A list of pairs of blockId and tierAlias **/
  private final List<Pair<Long, Integer>> mToTransfer;
  private final List<Long> mToEvict;

  public EvictionPlan(List<Pair<Long, Integer>> toTransfer, List<Long> toEvict) {
    mToTransfer = Preconditions.checkNotNull(toTransfer);
    mToEvict = Preconditions.checkNotNull(toEvict);
  }

  public List<Pair<Long, Integer>> toTransfer() {
    return mToTransfer;
  }

  public List<Long> toEvict() {
    return mToEvict;
  }

  @Override
  public String toString() {
    return "toTransfer: " + mToTransfer.toString() + ", toEvict: " + mToEvict.toString();
  }
}

@@ -915,16 +915,58 @@
 on.Pair;
+%0Aimport tachyon.worker.BlockStoreLocation;
 %0A%0A/**%0A *
@@ -1125,19 +1125,32 @@
 and 
-tierAlias *
+its location to move to 
 */%0A 
@@ -1184,30 +1184,74 @@
 ng, 
-Integer%3E%3E mToTransfer;
+BlockStoreLocation%3E%3E mToMove;%0A  /** A list of blockId to remove */
 %0A  p
@@ -1315,39 +1315,50 @@
 List%3CPair%3CLong, 
-Integer
+BlockStoreLocation
 %3E%3E toTransfer, L
@@ -1385,24 +1385,20 @@
 %0A    mTo
-Transfer
+Move
  = Preco
@@ -1518,15 +1518,26 @@
 ng, 
-Integer
+BlockStoreLocation
 %3E%3E t
@@ -1564,24 +1564,20 @@
 turn mTo
-Transfer
+Move
 ;%0A  %7D%0A%0A 
@@ -1705,24 +1705,20 @@
  %22 + mTo
-Transfer
+Move
 .toStrin

Update EvictionPlan to return BlockStoreLocation for blocks to move