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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query.profile.types;
import com.yahoo.language.process.Encoder;
import com.yahoo.search.query.profile.QueryProfileRegistry;
import com.yahoo.search.query.profile.compiled.CompiledQueryProfileRegistry;
import static com.yahoo.text.Lowercase.toLowerCase;
/**
* Represents a query field type which is a primitive - String, Integer, Float, Double or Long.
*
* @author bratseth
*/
@SuppressWarnings("rawtypes")
public class PrimitiveFieldType extends FieldType {
private Class primitiveClass;
PrimitiveFieldType(Class primitiveClass) {
this.primitiveClass=primitiveClass;
}
@Override
public Class getValueClass() { return primitiveClass; }
@Override
public String stringValue() {
return toLowerCase(primitiveClass.getSimpleName());
}
@Override
public String toString() { return "field type " + stringValue(); }
@Override
public String toInstanceDescription() {
return toLowerCase(primitiveClass.getSimpleName());
}
@Override
public Object convertFrom(Object object, ConversionContext context) {
return convertFrom(object, (QueryProfileRegistry)null);
}
@Override
public Object convertFrom(Object object, QueryProfileRegistry registry) {
if (primitiveClass == object.getClass()) return object;
if (object.getClass() == String.class) return convertFromString((String)object);
if (object instanceof Number) return convertFromNumber((Number)object);
return null;
}
private Object convertFromString(String string) {
try {
if (primitiveClass==Integer.class) return Integer.valueOf(string);
if (primitiveClass==Double.class) return Double.valueOf(string);
if (primitiveClass==Float.class) return Float.valueOf(string);
if (primitiveClass==Long.class) return Long.valueOf(string);
if (primitiveClass==Boolean.class) return Boolean.valueOf(string);
}
catch (NumberFormatException e) {
return null; // Handled in caller
}
throw new RuntimeException("Programming error");
}
private Object convertFromNumber(Number number) {
if (primitiveClass==Integer.class) return number.intValue();
if (primitiveClass==Double.class) return number.doubleValue();
if (primitiveClass==Float.class) return number.floatValue();
if (primitiveClass==Long.class) return number.longValue();
if (primitiveClass==String.class) return String.valueOf(number);
throw new RuntimeException("Programming error: Input type is " + number.getClass() +
" primitiveClass is " + primitiveClass);
}
@Override
public int hashCode() {
return primitiveClass.hashCode();
}
@Override
public boolean equals(Object o) {
if (o == this) return true;
if ( ! (o instanceof PrimitiveFieldType)) return false;
PrimitiveFieldType other = (PrimitiveFieldType)o;
return other.primitiveClass.equals(this.primitiveClass);
}
}
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