chaschev.util.MapObjectBase Maven / Gradle / Ivy

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package chaschev.util;

import com.google.common.base.Function;
import com.google.common.collect.Iterators;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

public class MapObjectBase extends MapObjectMap implements MapObjectList {
    public Object obj;

    public MapObjectBase() {
    }

    public MapObjectBase(Object obj) {
        reuse(obj);
    }

    public MapObjectBase reuse(Object obj) {
        this.obj = obj;
        return this;
    }

    @SuppressWarnings("unchecked")
    @Override
    public Iterator iterator() {
        if(obj == null){
            return Iterators.emptyIterator();
        }

        final Iterator iterator = ((Iterable) obj).iterator();
        final MapObjectBase nav = new MapObjectBase();
        return Iterators.transform(iterator, new Function() {
            @Override
            public MapObjectBase apply(Object input) {
                return nav.reuse(input);
            }
        });
    }

    public MapObjectBase get(int n){
        obj = ((List)obj).get(n);
        return this;
    }

    @Override
    public MapObjectList newCollection(String path){
        return dup().gotoCollection(path);
    }

    @Override
    public MapObjectList gotoCollection(String path){
        if(obj == null) return this;

        obj = MapObjectUtils.pathToCollection((Map) obj, path);
        return this;
    }

    @Override
    public MapObjectMap gotoMap(String path){
        obj = MapObjectUtils.pathToMap((Map) obj, path);
        return this;
    }

    @Override
    public MapObjectMap having(
        String field1, Object value1) {

        if(obj == null) return this;

        obj = MapObjectUtils.having((Collection)obj, field1, value1);

        return this;
    }

    @Override
    public MapObjectMap having(
        String field1, Object value1,
        String field2, Object value2) {

        if(obj == null) return this;

        obj = MapObjectUtils.having((Collection)obj, field1, value1, field2, value2);

        return this;
    }

    @Override
    public int size() {
        if(obj == null) return 0;
        if (isCollection()) {
            return ((Collection)obj).size();
        }else
        if (isMap()) {
            return ((Map)obj).size();
        }

        return 0;
    }

    public boolean isMap() {
        return obj instanceof Map;
    }

    public final Object value(){
        return obj;
    }

    @Override
    public final Map asMap(){
        return (Map) obj;
    }

    @Override
    public final Collection