package org.litesoft.GWT.forms.server.support;

import java.util.*;

import org.litesoft.GWT.forms.server.*;
import org.litesoft.ui.def.nonpublic.support.*;

public class TypeHelperManager
{
    private TypeHelper mRootTypeHelper = null;
    private Map<Integer, TypeHelper> mTypeHelpersByFormUniqueIDs = new HashMap<Integer, TypeHelper>();

    public synchronized void dispose()
    {
        if ( mTypeHelpersByFormUniqueIDs != null )
        {
            for ( TypeHelper helper : mTypeHelpersByFormUniqueIDs.values() )
            {
                try
                {
                    helper.dispose();
                }
                catch ( RuntimeException e )
                {
                    FormServicePeer.LOGGER.error.log( e );
                }
            }
            mTypeHelpersByFormUniqueIDs.clear();
            mTypeHelpersByFormUniqueIDs = null;
            mRootTypeHelper = null;
        }
    }

    public synchronized TypeHelper getRootTypeHelper()
    {
        return mRootTypeHelper;
    }

    public synchronized void setRootTypeHelper( TypeHelper pRootTypeHelper )
    {
        add( mRootTypeHelper = pRootTypeHelper );
    }

    public synchronized void add( TypeHelper pTypeHelper )
    {
        mTypeHelpersByFormUniqueIDs.put( pTypeHelper.getFormUniqueID(), pTypeHelper );
    }

    public synchronized TypeHelper getTypeHelper( FormDataRowKey pFormDataRowKey )
    {
        return (pFormDataRowKey == null) ? // null == root
               getRootTypeHelper() : //
               mTypeHelpersByFormUniqueIDs.get( pFormDataRowKey.getFormUniqueID() );
    }
}