com.epam.commons.DataClass Maven / Gradle / Ivy
package com.epam.commons;
import java.lang.reflect.Field;
import static com.epam.commons.LinqUtils.first;
import static com.epam.commons.PrintUtils.print;
/**
* Created by Roman_Iovlev on 6/4/2017.
*/
public class DataClass {
@Override
public String toString() {
return getClass().getSimpleName() + "{" + print(LinqUtils.select(getClass().getDeclaredFields(),
f -> f.getName() + ":" + f.get(this)), ";") + "}";
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
try {
Field[] otherFields = getClass().getDeclaredFields();
for (Field f : getClass().getDeclaredFields()) {
Field fOther = first(otherFields, fo -> fo.getName().equals(f.getName()));
if (f.get(this) == null && fOther.get(o) == null)
continue;
if (f.get(this) != null && fOther.get(o) == null ||
f.get(this) == null && fOther.get(o) != null ||
!f.get(this).equals(fOther.get(o)))
return false;
}
}
catch (Exception ex) {
throw new RuntimeException(ex.getMessage());
}
return true;
}
@Override
public int hashCode() {
int result = 0;
for (Field f : getClass().getDeclaredFields())
try {
result += 31 * result + f.get(this).hashCode();
} catch (Exception ex) {
throw new RuntimeException(ex.getMessage());
}
return result;
}
}