ceph/src/arrow/java/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/ConfigurationBuilder.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one or more
   3  * contributor license agreements.  See the NOTICE file distributed with
   4  * this work for additional information regarding copyright ownership.
   5  * The ASF licenses this file to You under the Apache License, Version 2.0
   6  * (the "License"); you may not use this file except in compliance with
   7  * the License.  You may obtain a copy of the License at
   8  *
   9  *    http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package org.apache.arrow.gandiva.evaluator;
  19
  20 import java.util.Objects;
  21
  22 /**
  23  * Used to construct gandiva configuration objects.
  24  */
  25 public class ConfigurationBuilder {
  26
  27   public long buildConfigInstance(ConfigOptions configOptions) {
  28     return buildConfigInstance(configOptions.optimize, configOptions.targetCPU);
  29   }
  30
  31   private native long buildConfigInstance(boolean optimize, boolean detectHostCPU);
  32
  33   public native void releaseConfigInstance(long configId);
  34
  35   /**
  36    * ConfigOptions contains the configuration parameters to provide to gandiva.
  37    */
  38   public static class ConfigOptions {
  39     private boolean optimize = true;
  40     private boolean targetCPU = true;
  41
  42     public static ConfigOptions getDefault() {
  43       return new ConfigOptions();
  44     }
  45
  46     public ConfigOptions() {}
  47
  48     public ConfigOptions withOptimize(boolean optimize) {
  49       this.optimize = optimize;
  50       return this;
  51     }
  52
  53     public ConfigOptions withTargetCPU(boolean targetCPU) {
  54       this.targetCPU = targetCPU;
  55       return this;
  56     }
  57
  58     @Override
  59     public int hashCode() {
  60       return Objects.hash(optimize, targetCPU);
  61     }
  62
  63     @Override
  64     public boolean equals(Object obj) {
  65       if (!(obj instanceof ConfigOptions)) {
  66         return false;
  67       }
  68       return this.optimize == ((ConfigOptions) obj).optimize &&
  69               this.targetCPU == ((ConfigOptions) obj).targetCPU;
  70     }
  71   }
  72 }