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.apex.examples.frauddetect;
  
  import java.util.Map;
  
  /**
   * Common utility class that can be used by all other operators to handle user input
   * captured from the Web socket input port.
   *
   * @since 0.9.0
   */
  public class MerchantQueryInputHandler
  {
    public static final String KEY_DATA = "data";
    public static final String KEY_MERCHANT_ID = "merchantId";
    public static final String KEY_TERMINAL_ID = "terminalId";
    public static final String KEY_ZIP_CODE = "zipCode";
  
    public static MerchantKey process(Map<String, Object> tuple)
    {
      String merchantId = null;
      Integer terminalId = null;
      Integer zipCode = null;
  
      // ignoring other top-level attributes.
      Map<String, Object> data = (Map<String, Object>)tuple.get(KEY_DATA);
      if (data.get(KEY_MERCHANT_ID) != null) {
        merchantId = (String)data.get(KEY_MERCHANT_ID);
      }
      if (data.get(KEY_TERMINAL_ID) != null) {
        terminalId = (Integer)data.get(KEY_TERMINAL_ID);
      }
      if (data.get(KEY_ZIP_CODE) != null) {
        zipCode = (Integer)data.get(KEY_ZIP_CODE);
      }
  
      MerchantKey key = new MerchantKey();
      key.merchantId = merchantId;
      key.terminalId = terminalId;
      key.zipCode = zipCode;
      key.country = "USA";
      if (merchantId != null) {
        key.merchantType = key.merchantId.equalsIgnoreCase(MerchantTransactionGenerator.merchantIds[2])
                || key.merchantId.equalsIgnoreCase(MerchantTransactionGenerator.merchantIds[3])
                           ? MerchantTransaction.MerchantType.INTERNET
                           : MerchantTransaction.MerchantType.BRICK_AND_MORTAR;
      }
      return key;
  
    }
  
  }
  