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.msgpack;
  
  import java.io.DataOutput;
  import java.io.IOException;
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.asterix.external.library.PyTypeInfo;
  import org.apache.asterix.om.pointables.AFlatValuePointable;
  import org.apache.asterix.om.pointables.AListVisitablePointable;
  import org.apache.asterix.om.pointables.ARecordVisitablePointable;
  import org.apache.asterix.om.pointables.visitor.IVisitablePointableVisitor;
  import org.apache.asterix.om.types.IAType;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  
  public class MsgPackPointableVisitor implements IVisitablePointableVisitor<Void, PyTypeInfo> {
  
      Map<DataOutput, Map<IAType, PyTypeInfo>> typeInfoMap = new HashMap<>();
  
      public Void visit(AListVisitablePointable accessor, PyTypeInfo arg) throws HyracksDataException {
          MsgPackAccessors.MsgPackListAccessor.access(accessor, arg, this);
          return null;
      }
  
      @Override
      public Void visit(ARecordVisitablePointable accessor, PyTypeInfo arg) throws HyracksDataException {
          MsgPackAccessors.MsgPackRecordAccessor.access(accessor, arg, this);
          return null;
      }
  
      @Override
      public Void visit(AFlatValuePointable accessor, PyTypeInfo arg) throws HyracksDataException {
          try {
              MsgPackAccessors.createFlatMsgPackAccessor(arg.getType().getTypeTag()).apply(accessor, arg.getDataOutput());
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
          return null;
      }
  
      public PyTypeInfo getTypeInfo(IAType type, DataOutput out) {
          PyTypeInfo tInfo = null;
          Map<IAType, PyTypeInfo> type2TypeInfo = typeInfoMap.get(out);
          if (type2TypeInfo == null) {
              type2TypeInfo = new HashMap<>();
              tInfo = new PyTypeInfo(type, out);
              type2TypeInfo.put(type, tInfo);
              typeInfoMap.put(out, type2TypeInfo);
          }
          tInfo = tInfo == null ? type2TypeInfo.get(type) : tInfo;
          if (tInfo == null) {
              tInfo = new PyTypeInfo(type, out);
              type2TypeInfo.put(type, tInfo);
          }
          return tInfo;
      }
  
  }
  