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/**
* 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;
}
}
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