package com.daveayan.mirage;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.daveayan.mirage.comparator.Comparator;
import com.daveayan.mirage.comparator.impl.FieldBasedComparator;
import com.daveayan.mirage.comparator.impl.IterableComparator;
import com.daveayan.mirage.comparator.impl.LeafBooleanComparator;
import com.daveayan.mirage.comparator.impl.LeafDoubleComparator;
import com.daveayan.mirage.comparator.impl.LeafIntegerComparator;
import com.daveayan.mirage.comparator.impl.LeafStringComparator;
public class ObjectComparator {
private List<Comparator> list_of_comparators = new ArrayList<Comparator>();
private Comparator default_comparator;
public boolean compare(Object objectLeft, Object objectRight) {
return compareObjects(objectLeft, objectRight);
}
private boolean compareObjects(Object objectLeft, Object objectRight) {
Iterator<Comparator> iter = list_of_comparators.iterator();
while(iter.hasNext()) {
Comparator c = iter.next();
if(c.canCompare(objectLeft, objectRight, this)) {
return c.compare(objectLeft, objectRight, this);
}
}
// return default_comparator.compare(objectLeft, objectRight, this);
return false;
}
public static ObjectComparator newInstance() {
ObjectComparator oc = new ObjectComparator();
oc.initialize();
return oc;
}
private void initialize() {
list_of_comparators.add(new LeafStringComparator());
list_of_comparators.add(new LeafIntegerComparator());
list_of_comparators.add(new LeafDoubleComparator());
list_of_comparators.add(new LeafBooleanComparator());
list_of_comparators.add(new IterableComparator());
default_comparator = new FieldBasedComparator();
}
private ObjectComparator() {}
}