com.neko233.toolchain.ripplex.strategy.merge.MinMergeStrategy Maven / Gradle / Ivy
package com.neko233.toolchain.ripplex.strategy.merge;
import com.neko233.toolchain.ripplex.exception.RippleException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.function.BiFunction;
/**
* @author SolarisNeko
* Date on 2022-04-30
*/
public class MinMergeStrategy implements MergeStrategy {
private static final MergeStrategy INSTANCE = new MinMergeStrategy();
public static MergeStrategy getInstance() {
return INSTANCE;
}
@Override
public BiFunction getMergeBiFunction(Class sumType) {
switch (sumType.getName()) {
case "short":
case "Short":
case "java.lang.Short": {
return (t1, t2) -> (Short) t1 < (Short) t2 ? t1 : t2;
}
case "int":
case "Integer":
case "java.lang.Integer": {
return (t1, t2) -> (Integer) t1 < (Integer) t2 ? t1 : t2;
}
case "float":
case "Float":
case "java.lang.Float": {
return (t1, t2) -> (Float) t1 < (Float) t2 ? t1 : t2;
}
case "double":
case "Double":
case "java.lang.Double": {
return (t1, t2) -> (Double) t1 < (Double) t2 ? t1 : t2;
}
case "long":
case "Long":
case "java.lang.Long": {
return (t1, t2) -> (Long) t1 < (Long) t2 ? t1 : t2;
}
case "BigDecimal":
case "java.math.BigDecimal": {
return (t1, t2) -> {
BigDecimal tempValue = (BigDecimal) t1;
return tempValue.compareTo((BigDecimal) t2) < 0 ? t1 : t2;
};
}
case "java.math.BigInteger": {
return (t1, t2) -> {
BigInteger tempValue = (BigInteger) t1;
return tempValue.compareTo((BigInteger) t2) < 0 ? t1 : t2;
};
}
default: {
throw new RippleException("Un-support " + sumType.getName() + " to merge.");
}
}
}
}