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.hive.service.cli;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.hadoop.hive.serde2.typeinfo.CharTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.DecimalTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo;
  import org.apache.hadoop.hive.serde2.typeinfo.VarcharTypeInfo;
  import org.apache.hive.service.cli.thrift.TCLIServiceConstants;
  import org.apache.hive.service.cli.thrift.TTypeQualifierValue;
  import org.apache.hive.service.cli.thrift.TTypeQualifiers;
  
  /**
   * This class holds type qualifier information for a primitive type,
   * such as char/varchar length or decimal precision/scale.
   */
  public class TypeQualifiers {
    private Integer characterMaximumLength;
    private Integer precision;
    private Integer scale;
  
    public TypeQualifiers() {}
  
    public Integer getCharacterMaximumLength() {
      return characterMaximumLength;
    }
    public void setCharacterMaximumLength(int characterMaximumLength) {
      this.characterMaximumLength = characterMaximumLength;
    }
  
    public TTypeQualifiers toTTypeQualifiers() {
      TTypeQualifiers ret = null;
  
      Map<String, TTypeQualifierValue> qMap = new HashMap<String, TTypeQualifierValue>();
      if (getCharacterMaximumLength() != null) {
        TTypeQualifierValue val = new TTypeQualifierValue();
        val.setI32Value(getCharacterMaximumLength().intValue());
        qMap.put(TCLIServiceConstants.CHARACTER_MAXIMUM_LENGTH, val);
      }
  
      if (precision != null) {
        TTypeQualifierValue val = new TTypeQualifierValue();
        val.setI32Value(precision.intValue());
        qMap.put(TCLIServiceConstants.PRECISION, val);
      }
  
      if (scale != null) {
        TTypeQualifierValue val = new TTypeQualifierValue();
        val.setI32Value(scale.intValue());
        qMap.put(TCLIServiceConstants.SCALE, val);
      }
  
      if (qMap.size() > 0) {
        ret = new TTypeQualifiers(qMap);
      }
  
      return ret;
    }
  
    public static TypeQualifiers fromTTypeQualifiers(TTypeQualifiers ttq) {
      TypeQualifiers ret = null;
      if (ttq != null) {
        ret = new TypeQualifiers();
        Map<String, TTypeQualifierValue> tqMap = ttq.getQualifiers();
  
        if (tqMap.containsKey(TCLIServiceConstants.CHARACTER_MAXIMUM_LENGTH)) {
          ret.setCharacterMaximumLength(
              tqMap.get(TCLIServiceConstants.CHARACTER_MAXIMUM_LENGTH).getI32Value());
        }
  
        if (tqMap.containsKey(TCLIServiceConstants.PRECISION)) {
          ret.setPrecision(tqMap.get(TCLIServiceConstants.PRECISION).getI32Value());
        }
  
        if (tqMap.containsKey(TCLIServiceConstants.SCALE)) {
          ret.setScale(tqMap.get(TCLIServiceConstants.SCALE).getI32Value());
        }
      }
      return ret;
    }
  
    public static TypeQualifiers fromTypeInfo(PrimitiveTypeInfo pti) {
      TypeQualifiers result = null;
      if (pti instanceof VarcharTypeInfo) {
        result = new TypeQualifiers();
        result.setCharacterMaximumLength(((VarcharTypeInfo)pti).getLength());
      }  else if (pti instanceof CharTypeInfo) {
        result = new TypeQualifiers();
        result.setCharacterMaximumLength(((CharTypeInfo)pti).getLength());
      } else if (pti instanceof DecimalTypeInfo) {
        result = new TypeQualifiers();
        result.setPrecision(((DecimalTypeInfo)pti).precision());
        result.setScale(((DecimalTypeInfo)pti).scale());
      }
      return result;
    }
  
    public Integer getPrecision() {
      return precision;
    }
  
    public void setPrecision(Integer precision) {
      this.precision = precision;
    }
  
    public Integer getScale() {
      return scale;
    }
  
    public void setScale(Integer scale) {
      this.scale = scale;
    }
  
  }
  