/*
 * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
 * (the "License"). You may not use this work except in compliance with the License, which is
 * available at www.apache.org/licenses/LICENSE-2.0
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied, as more fully set forth in the License.
 *
 * See the NOTICE file distributed with this work for information regarding copyright ownership.
 */

package alluxio.client.block;

import alluxio.annotation.PublicApi;
import alluxio.wire.WorkerNetAddress;

import com.google.common.base.Preconditions;

import javax.annotation.concurrent.ThreadSafe;

/**
 * Information of an active block worker.
 */
@PublicApi
@ThreadSafe
public final class BlockWorkerInfo {
  private final WorkerNetAddress mNetAddress;
  private final long mCapacityBytes;
  private final long mUsedBytes;

  /**
   * Constructs the block worker information.
   *
   * @param netAddress the address of the worker
   * @param capacityBytes the capacity of the worker in bytes
   * @param usedBytes the used bytes of the worker
   */
  public BlockWorkerInfo(WorkerNetAddress netAddress, long capacityBytes, long usedBytes) {
    mNetAddress = Preconditions.checkNotNull(netAddress, "netAddress");
    mCapacityBytes = capacityBytes;
    mUsedBytes = usedBytes;
  }

  /**
   * @return the address of the worker
   */
  public WorkerNetAddress getNetAddress() {
    return mNetAddress;
  }

  /**
   * @return the capacity of the worker in bytes
   */
  public long getCapacityBytes() {
    return mCapacityBytes;
  }

  /**
   * @return the used bytes of the worker
   */
  public long getUsedBytes() {
    return mUsedBytes;
  }
}

@@ -538,16 +538,74 @@
 block;%0A%0A
+import alluxio.Configuration;%0Aimport alluxio.PropertyKey;%0A
 import a
@@ -633,16 +633,16 @@
 licApi;%0A
-
 import a
@@ -991,16 +991,100 @@
 edBytes;
+%0A  private long mBlockSizeBytes;%0A  private long mUserFileWriteCapacityReservedRatio;
 %0A%0A  /**%0A
@@ -1747,32 +1747,32 @@
 pacityBytes() %7B%0A
-
     return mCapa
@@ -1779,32 +1779,447 @@
 cityBytes;%0A  %7D%0A%0A
+  /**%0A   * @return the available bytes of the worker%0A   */%0A  public long getAvailableBytes() %7B%0A    mBlockSizeBytes = Configuration.getBytes(PropertyKey.USER_BLOCK_SIZE_BYTES_DEFAULT);%0A    mUserFileWriteCapacityReservedRatio = Configuration%0A        .getBytes(PropertyKey.USER_FILE_WRITE_CAPACITY_RESERVED_RATIO);%0A    return mCapacityBytes - mUsedBytes - (mUserFileWriteCapacityReservedRatio * mBlockSizeBytes);%0A  %7D%0A%0A
   /**%0A   * @retu

Add a LocalFirstPolicy that without evict action