content: /*
   * Copyright 2013 ZXing authors
   *
   * 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 com.ailiwean.core.zxing.core.pdf417.decoder;
  
  
  import com.ailiwean.core.zxing.core.pdf417.PDF417Common;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Map.Entry;
  
  /**
   * @author Guenther Grau
   */
  final class BarcodeValue {
    private final Map<Integer,Integer> values = new HashMap<>();
  
    /**
     * Add an occurrence of a value
     */
    void setValue(int value) {
      Integer confidence = values.get(value);
      if (confidence == null) {
        confidence = 0;
      }
      confidence++;
      values.put(value, confidence);
    }
  
    /**
     * Determines the maximum occurrence of a set value and returns all values which were set with this occurrence.
     * @return an array of int, containing the values with the highest occurrence, or null, if no value was set
     */
    int[] getValue() {
      int maxConfidence = -1;
      Collection<Integer> result = new ArrayList<>();
      for (Entry<Integer,Integer> entry : values.entrySet()) {
        if (entry.getValue() > maxConfidence) {
          maxConfidence = entry.getValue();
          result.clear();
          result.add(entry.getKey());
        } else if (entry.getValue() == maxConfidence) {
          result.add(entry.getKey());
        }
      }
      return PDF417Common.toIntArray(result);
    }
  
    Integer getConfidence(int value) {
      return values.get(value);
    }
  
  }
  