package com.c2kernel.collection;

import java.util.Iterator;

import com.c2kernel.utils.*;

/*
Dependency Object
Objectified link representing dependency between items.
e.g.: Used for ProductDesc::Item-dependency-dependencymember-WfDesc::Item
*/

/**
 * @version $Revision: 1.15 $ $Date: 2005/04/07 08:03:21 $
 * @author  $Author: abranson $
 */
public class Dependency extends Parent2ChildCollection
{

    protected CastorHashMap mProperties = new CastorHashMap();
    protected String mClassProps = "";
    
    public Dependency()
    {
    	setName("Dependency");
        mMembers = new CollectionMemberList();
    }

    public Dependency(String name)
    {
    	setName(name);
        mMembers = new CollectionMemberList();
    }
    
    public CastorHashMap getProperties() {
        return mProperties;
    }
    
    public void setProperties(CastorHashMap props) {
        mProperties = props;
    }
    
    public KeyValuePair[] getKeyValuePairs()
    {
        return mProperties.getKeyValuePairs();
    }
    public void setKeyValuePairs(KeyValuePair[] pairs)
    {
        mProperties.setKeyValuePairs(pairs);
    }
    
    public void setClassProps(String classProps) {
        this.mClassProps = classProps;
    }
    
    public String getClassProps() {
        return mClassProps;
    }

    public void addMember(int entityKey) throws MembershipException {
        // create member object
        DependencyMember depMember = new DependencyMember();
        depMember.setID(getCounter());
        depMember.setProperties(mProperties);
        depMember.setClassProps(mClassProps);
        
        // assign entity
        depMember.assignEntity(entityKey);
        mMembers.list.add(depMember);
        Logger.msg(8, "Dependency::addMember(" + entityKey + ") added to children.");        
    }

    public void addMember(int entityKey, CastorHashMap props, String classProps)
        throws MembershipException
    {
        if (classProps != null && !classProps.equals(mClassProps))
            throw new MembershipException("Cannot change classProps in dependency member");
        DependencyMember depMember = new DependencyMember();
        depMember.setID(getCounter());
        
        // merge props
        CastorHashMap newProps = new CastorHashMap();
        for (Iterator iter = props.keySet().iterator(); iter.hasNext();) {
            String key = (String)iter.next();
            newProps.put(key, props.get(key));            
            
        }
        // class props override local
        for (Iterator iter = mProperties.keySet().iterator(); iter.hasNext();) {
            String key = (String)iter.next();
            newProps.put(key, mProperties.get(key));            
            
        }
        depMember.setProperties(newProps);
        depMember.setClassProps(mClassProps);
        
        // assign entity
        depMember.assignEntity(entityKey);
        mMembers.list.add(depMember);
        Logger.msg(8, "Dependency::addMember(" + entityKey + ") added to children.");        
    }
    
    public void removeMember(int memberId) throws MembershipException {
        for (Iterator iter = mMembers.list.iterator(); iter.hasNext();) {
            DependencyMember element = (DependencyMember)iter.next();
            if (element.getID() == memberId) {
                mMembers.list.remove(element);
                return;
            }
        }
        throw new MembershipException("Member "+memberId+" not found");        
    }

}