package com.c2kernel.lifecycle.instance.predefined.entitycreation;

import java.util.ArrayList;

import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

import com.c2kernel.collection.MembershipException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.graph.model.GraphPoint;
import com.c2kernel.lookup.DomainPath;
import com.c2kernel.property.PropertyDescription;
import com.c2kernel.property.PropertyDescriptionList;
import com.c2kernel.property.PropertyUtility;

public class Aggregation implements java.io.Serializable {

    public boolean isDescription;
    public ArrayList<AggregationMember> aggregationMemberList = new ArrayList<AggregationMember>();
    public String name;

    public Aggregation() {
        super();
    }

    public Aggregation(String name, boolean isDescription) {
        this();
        this.name = name;
        this.isDescription = isDescription;
    }

    public Aggregation(Element agg) {
		name = agg.getAttribute("name");
		isDescription = agg.getAttribute("isDescription").equals("true");
		NodeList depmemnl = agg.getElementsByTagName("AggregationMember");
		for (int k=0; k<depmemnl.getLength(); k++) {
			Element memElem = (Element)depmemnl.item(k);
			AggregationMember newAggMem = new AggregationMember(memElem);
			aggregationMemberList.add(newAggMem);
		}
	}

	public com.c2kernel.collection.Aggregation create() throws MembershipException, ObjectNotFoundException {
        com.c2kernel.collection.Aggregation newAgg = isDescription?new com.c2kernel.collection.AggregationDescription(name):new com.c2kernel.collection.AggregationInstance(name);
        newAgg.setName(name);
        for (AggregationMember thisMem : aggregationMemberList) {
            StringBuffer classProps = new StringBuffer();
            if (thisMem.itemDescriptionPath != null && thisMem.itemDescriptionPath.length()>0) {
                 PropertyDescriptionList propList = PropertyUtility.getPropertyDescriptionOutcome(new DomainPath(thisMem.itemDescriptionPath).getSysKey());
                 for (PropertyDescription pd : propList.list) {
					thisMem.props.put(pd.getName(), pd.getDefaultValue());
					if (pd.getIsClassIdentifier())
						classProps.append((classProps.length()>0?",":"")).append(pd.getName());
				}
             }
        	if (thisMem.itemPath != null && thisMem.itemPath.length()>0) {
        		int syskey = new DomainPath(thisMem.itemPath).getSysKey();
        		if (syskey == -1) 
        			throw new MembershipException("Cannot find "+thisMem.itemPath+" specified for collection.");
       			newAgg.addMember(syskey, thisMem.props, classProps.toString(), new GraphPoint(thisMem.geometry.x, thisMem.geometry.y), thisMem.geometry.width, thisMem.geometry.height);
        	}
        }
        return newAgg;
    }
}