/*******************************************************************************
    * Copyright (c) 2007, 2014 Massimiliano Ziccardi
    *
    * Licensed 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 it.jnrpe.utils.thresholds;
  
  import java.math.BigDecimal;
  
  /**
   * The threshold configuration. It is an interpretation of the threshold string.
   * This object is populated by the threshold parser.
   *
   * @author Massimiliano Ziccardi
   *
   */
  class RangeConfig {
      /**
       * Indicate if the threshold is negated.
       */
      private boolean negate = false;
  
      /**
       * Indicate if the left boundary is inclusive.
       */
      private boolean leftInclusive = true;
  
      /**
       * Indicate if the right boundary is inclusive.
       */
      private boolean rightInclusive = true;
  
      /**
       * The left boundary. Must be <code>null</code> if {@link #negativeInfinity}
       * is <code>true</code>
       */
      private BigDecimal startBoundary = null;
  
      /**
       * The right boundary. Must be <code>null</code> if
       * {@link #positiveInfinity} is <code>true</code>
       */
      private BigDecimal rightBoundary = null;
  
      /**
       * <code>true</code> if the left boundary is the negative infinity.
       */
      private boolean negativeInfinity = false;
  
      /**
       * <code>true</code> if the right boundary is the positive infinity.
       */
      private boolean positiveInfinity = false;
  
      /**
       * Returns whether this threshold must be negated.
       *
       * @return whether this threshold must be negated.
       */
      public boolean isNegate() {
          return negate;
      }
  
      /**
       * Sets if this threshold must be negated.
       *
       * @param negateThrehsold
       *            <code>true</code> if must be negated
       */
      void setNegate(final boolean negateThrehsold) {
          this.negate = negateThrehsold;
      }
  
      /**
       * Returns whether the left boundary is inclusive.
       *
       * @return whether the left boundary is inclusive.
       */
      public boolean isLeftInclusive() {
          return leftInclusive;
      }
  
      /**
       * Returns whether the right boundary is inclusive.
       *
       * @return whether the right boundary is inclusive.
       */
      public boolean isRightInclusive() {
          return rightInclusive;
     }
 
     /**
      * Sets if the left boundary must be inclusive.
      *
      * @param leftBoundaryInclusive
      *            <code>true</code> if left boundary is inclusive
      */
     public void setLeftInclusive(final boolean leftBoundaryInclusive) {
         this.leftInclusive = leftBoundaryInclusive;
     }
 
     /**
      * Sets the left boundary to negative infinity if <code>true</code>.
      * @param negativeInf <code>true</code> to set negative infinity
      */
     public void setNegativeInfinity(final boolean negativeInf) {
         negativeInfinity = negativeInf;
     }
 
     @Override
     public String toString() {
         StringBuffer sb = new StringBuffer()
                 .append("negate : " + negate)
                 .append("\nnegativeInfinity : " + negativeInfinity)
                 .append("\npositiveInfinity : " + positiveInfinity)
                 .append("\nleftInclusive : " + leftInclusive)
                 .append("\nrightInclusive : " + rightInclusive)
                 .append("\nleftBoundary : " + startBoundary)
                 .append("\nrightBoundary : " + rightBoundary);
 
         return sb.toString();
     }
 
     /**
      * Sets the left boundary (numeric).
      * @param start The left boundary (numeric)
      */
     public void setLeftBoundary(final BigDecimal start) {
         startBoundary = start;
     }
 
     /**
      * Sets the right boundary to positive infinity if <code>true</code>.
      * @param positiveInf <code>true</code> to set positive infinity
      */
     public void setPositiveInfinity(final boolean positiveInf) {
         positiveInfinity = positiveInf;
     }
 
     /**
      * Sets the right boundary (numeric).
      * @param right The right boundary (numeric)
      */
     public void setRightBoundary(final BigDecimal right) {
         rightBoundary = right;
     }
 
     /**
      * Sets if the right boundary must be inclusive.
      *
      * @param rightIncl
      *            <code>true</code> if right boundary is inclusive
      */
     public void setRightInclusive(final boolean rightIncl) {
         rightInclusive = rightIncl;
     }
 
     /**
      * @return The value of the left boundary. <code>null</code> if -inf.
      */
     protected BigDecimal getLeftBoundary() {
         return startBoundary;
     }
 
     /**
      * @return The value of the right boundary. <code>null</code> if -inf.
      */
     protected BigDecimal getRightBoundary() {
         return rightBoundary;
     }
 
     /**
      * @return <code>true</code> if the left boundary is -inf.
      */
     protected boolean isNegativeInfinity() {
         return negativeInfinity;
     }
 
     /**
      * @return <code>true</code> if the right boundary is +inf.
      */
     protected boolean isPositiveInfinity() {
         return positiveInfinity;
     }
 }