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.asterix.external.library;
  
  import org.apache.asterix.external.api.IExternalScalarFunction;
  import org.apache.asterix.external.api.IFunctionHelper;
  import org.apache.asterix.external.library.java.base.JInt;
  import org.apache.asterix.external.library.java.base.JOrderedList;
  import org.apache.asterix.external.library.java.base.JRecord;
  import org.apache.asterix.external.library.java.base.JString;
  import org.apache.asterix.om.types.BuiltinType;
  
  /**
   * Accepts an input record of type Open{ id: int32, text: string }
   * Converts the text field into upper case and appends an additional field -
   * "substring" with value as a random substring of the text field.
   * Return Type Open{ id: int32, text: string }
   */
  public class UpperCaseFunction implements IExternalScalarFunction {
  
      @Override
      public void initialize(IFunctionHelper functionHelper) {
      }
  
      @Override
      public void deinitialize() {
      }
  
      @Override
      public void evaluate(IFunctionHelper functionHelper) throws Exception {
          JRecord inputRecord = (JRecord) functionHelper.getArgument(0);
          JOrderedList textList = (JOrderedList) inputRecord.getValueByName("text_list");
          JOrderedList capList = new JOrderedList(BuiltinType.ASTRING);
          JInt id = (JInt) inputRecord.getValueByName("id");
          id.setValue(id.getValue() * -1);
          for (int iter1 = 0; iter1 < textList.getValue().size(); iter1++) {
              JRecord originalElement = (JRecord) textList.getValue().get(iter1);
              JString originalText = (JString) originalElement.getValueByName("text");
              JString capText = new JString(originalText.getValue().toUpperCase());
              capList.add(capText);
          }
          JInt element_n = new JInt(textList.size());
          JRecord result = (JRecord) functionHelper.getResultObject();
          result.setField("id", id);
          result.setField("text_list", textList);
          result.setField("element_n", element_n);
          result.setField("capitalized_list", capList);
          functionHelper.setResult(result);
      }
  }
  