content: /**
   * Licensed to the Apache Software Foundation (ASF) 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 org.apache.solr.search.function;
  
  import org.apache.lucene.index.IndexReader;
  
  import java.io.IOException;
  import java.util.Map;
  
  public class DoubleConstValueSource extends ConstNumberSource {
    final double constant;
    private final float fv;
    private final long lv;
  
    public DoubleConstValueSource(double constant) {
      this.constant = constant;
      this.fv = (float)constant;
      this.lv = (long)constant;
    }
  
    @Override
    public String description() {
      return "const(" + constant + ")";
    }
  
    @Override
    public DocValues getValues(Map context, IndexReader reader) throws IOException {
      return new DocValues() {
        @Override
        public float floatVal(int doc) {
          return fv;
        }
  
        @Override
        public int intVal(int doc) {
          return (int) lv;
        }
  
        @Override
        public long longVal(int doc) {
          return lv;
        }
  
        @Override
        public double doubleVal(int doc) {
          return constant;
        }
  
        @Override
        public String strVal(int doc) {
          return Double.toString(constant);
        }
  
        @Override
        public String toString(int doc) {
          return description();
        }
      };
    }
  
    @Override
    public int hashCode() {
      long bits = Double.doubleToRawLongBits(constant);
      return (int)(bits ^ (bits >>> 32));
    }
  
    @Override
    public boolean equals(Object o) {
      if (!(o instanceof DoubleConstValueSource)) return false;
      DoubleConstValueSource other = (DoubleConstValueSource) o;
      return this.constant == other.constant;
    }
  
    @Override
    public int getInt() {
      return (int)lv;
    }
  
    @Override
    public long getLong() {
      return lv;
    }
  
    @Override
    public float getFloat() {
      return fv;
    }
  
    @Override
    public double getDouble() {
      return constant;
    }
  
    @Override
    public Number getNumber() {
      return constant;
    }
  }
  