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.runtime.evaluators.functions;
  
  import org.apache.asterix.om.pointables.cast.ACastingPointableVisitor;
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.asterix.om.types.IAType;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.api.exceptions.SourceLocation;
  import org.apache.hyracks.data.std.api.IPointable;
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  class CastTypeLaxEvaluator extends CastTypeEvaluator {
  
      private static final Logger LOGGER = LogManager.getLogger();
  
      private static final byte[] MISSING_BYTES = new byte[] { ATypeTag.SERIALIZED_MISSING_TYPE_TAG };
  
      CastTypeLaxEvaluator(IAType reqType, IAType inputType, IScalarEvaluator argEvaluator, SourceLocation sourceLoc) {
          super(reqType, inputType, argEvaluator, sourceLoc);
      }
  
      @Override
      protected ACastingPointableVisitor createCastVisitor() {
          return ACastingPointableVisitor.laxCasting(sourceLoc);
      }
  
      @Override
      protected void castInto(IPointable result) {
          try {
              super.castInto(result);
          } catch (HyracksDataException e) {
              if (LOGGER.isTraceEnabled()) {
                  LOGGER.log(Level.TRACE, e.toString(), e);
              }
              result.set(MISSING_BYTES, 0, MISSING_BYTES.length);
          }
      }
  }
  