/**
* 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.drill.exec.ref.values;
import org.apache.drill.common.exceptions.DrillRuntimeException;
import org.apache.drill.common.types.TypeProtos.DataMode;
import org.apache.drill.common.types.TypeProtos.MinorType;
import org.apache.drill.common.types.Types;
public class ValueReader {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(ValueReader.class);
public static boolean getBoolean(DataValue v){
if(v.getDataType().getMinorType() == MinorType.BIT && v.getDataType().getMode() != DataMode.REPEATED){
return v.getAsBooleanValue().getBoolean();
}else{
throw new DrillRuntimeException(String.format("Unable to get boolean. Type was a %s", v.getClass().getCanonicalName()));
}
}
public static long getLong(DataValue v){
if(Types.isNumericType(v.getDataType())){
return v.getAsNumeric().getAsLong();
}else{
throw new DrillRuntimeException(String.format("Unable to get value. %s is not a numeric type.", v.getClass().getCanonicalName()));
}
}
public static double getDouble(DataValue v){
if(Types.isNumericType(v.getDataType())){
return v.getAsNumeric().getAsDouble();
}else{
throw new DrillRuntimeException(String.format("Unable to get value. %s is not a numeric type.", v.getClass().getCanonicalName()));
}
}
public static CharSequence getChars(DataValue v){
if(Types.isStringScalarType(v.getDataType())){
return v.getAsStringValue().getString();
}else{
throw new DrillRuntimeException(String.format("Unable to get value. %s is not a StringValue type.", v.getClass().getCanonicalName()));
}
}
public static String getString(DataValue v){
return getChars(v).toString();
}
}