code: /**
   * This file is part of Eclipse Steady.
   *
   * 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.shared.json.model.metrics;
  
  import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
  import com.fasterxml.jackson.annotation.JsonInclude;
  
  /**
   * <p>Ratio class.</p>
   */
  @JsonInclude(JsonInclude.Include.ALWAYS)
  @JsonIgnoreProperties(ignoreUnknown = true)
  public class Ratio extends AbstractMetric {
  
    private double count;
  
    private double total;
  
    /**
     * <p>Constructor for Ratio.</p>
     */
    public Ratio() {
      this(null, 0, 0);
    }
  
    /**
     * <p>Constructor for Ratio.</p>
     *
     * @param _name a {@link java.lang.String} object.
     */
    public Ratio(String _name) {
      this(_name, 0, 0);
    }
  
    /**
     * <p>Constructor for Ratio.</p>
     *
     * @param _name a {@link java.lang.String} object.
     * @param _count a double.
     * @param _total a double.
     * @throws java.lang.IllegalArgumentException if count GT total
     */
    public Ratio(String _name, double _count, double _total) throws IllegalArgumentException {
      super(_name);
      if (_count > _total)
        throw new IllegalArgumentException("Count [" + _count + "] GT total [" + _total + "]");
      this.count = _count;
      this.total = _total;
    }
  
    /**
     * <p>Getter for the field <code>count</code>.</p>
     *
     * @return a double.
     */
    public double getCount() {
      return count;
    }
  
    /**
     * <p>incrementCount.</p>
     */
    public void incrementCount() {
      this.count = this.count + 1d;
    }
  
    /**
     * <p>Setter for the field <code>count</code>.</p>
     *
     * @param count a double.
     */
    public void setCount(double count) {
      this.count = count;
    }
  
    /**
     * <p>Getter for the field <code>total</code>.</p>
     *
     * @return a double.
     */
    public double getTotal() {
      return total;
    }
  
    /**
     * <p>incrementTotal.</p>
     *
     * @param _inc a double.
     */
    public void incrementTotal(double _inc) {
      this.total = this.total + _inc;
    }
  
    /**
     * <p>incrementTotal.</p>
     */
    public void incrementTotal() {
      this.total = this.total + 1d;
    }
  
    /**
     * <p>Setter for the field <code>total</code>.</p>
     *
     * @param total a double.
     */
    public void setTotal(double total) {
      this.total = total;
    }
  
    /**
     * Returns the ratio as percentage, or -1 if total EQ 0.
     *
     * @return a double.
     */
    public double getRatio() {
      return (this.getTotal() == 0d ? -1d : this.getCount() / this.getTotal());
    }
  }
  