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.bifromq.sysprops.parser;
  
  public class DoubleParser implements PropParser<Double> {
      private final double lowBound;
      private final boolean excludeLowerBound;
      private final double highBoundEx;
  
      private DoubleParser(double lowBound, double highBoundEx, boolean excludeLowerBound) {
          this.lowBound = lowBound;
          this.highBoundEx = highBoundEx;
          this.excludeLowerBound = excludeLowerBound;
      }
  
      @Override
      public Double parse(String value) {
          double val = Double.parseDouble(value);
          int isLower = Double.compare(lowBound, val);
          if ((excludeLowerBound ? isLower < 0 : isLower <= 0) && Double.compare(val, highBoundEx) < 0) {
              return val;
          }
          if (excludeLowerBound) {
              throw new SysPropParseException(String.format("%f is out of bound (%f,%f)", val, lowBound, highBoundEx));
          } else {
              throw new SysPropParseException(String.format("%f is out of bound [%f,%f)", val, lowBound, highBoundEx));
          }
      }
  
      public static DoubleParser from(double lowBound, double highBoundEx, boolean excludeLowerBound) {
          assert Double.compare(lowBound, highBoundEx) < 0;
          return new DoubleParser(lowBound, highBoundEx, excludeLowerBound);
      }
  }
  