content: /*
   * Copyright 2007 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.client.result;
  
  
  import com.ailiwean.core.zxing.core.BarcodeFormat;
  import com.ailiwean.core.zxing.core.Result;
  import com.ailiwean.core.zxing.core.oned.UPCEReader;
  
  /**
   * Parses strings of digits that represent a UPC code.
   * 
   * @author dswitkin@google.com (Daniel Switkin)
   */
  public final class ProductResultParser extends ResultParser {
  
    // Treat all UPC and EAN variants as UPCs, in the sense that they are all product barcodes.
    @Override
    public ProductParsedResult parse(Result result) {
      BarcodeFormat format = result.getBarcodeFormat();
      if (!(format == BarcodeFormat.UPC_A || format == BarcodeFormat.UPC_E ||
            format == BarcodeFormat.EAN_8 || format == BarcodeFormat.EAN_13)) {
        return null;
      }
      String rawText = getMassagedText(result);
      if (!isStringOfDigits(rawText, rawText.length())) {
        return null;
      }
      // Not actually checking the checksum again here    
  
      String normalizedProductID;
      // Expand UPC-E for purposes of searching
      if (format == BarcodeFormat.UPC_E && rawText.length() == 8) {
        normalizedProductID = UPCEReader.convertUPCEtoUPCA(rawText);
      } else {
        normalizedProductID = rawText;
      }
  
      return new ProductParsedResult(rawText, normalizedProductID);
    }
  
  }