package jp.ac.u_ryukyu.ie.cr.shoshi.jungle;

import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListWriter;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditor;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.AtomicReservableReference;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultJungleTreeEditor;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTransactionManager;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.TreeContext;

public class DefaultJungleTree<T extends TreeNode<T>> implements JungleTree
{
	private final AtomicReservableReference<TreeContext<T>> repository;
	private final String uuid;
	private final ChangeListWriter writer;
	private final TreeEditor editor;
	
	public DefaultJungleTree(TreeContext<T> _tc,String _uuid,ChangeListWriter _writer,TreeEditor _editor)
	{
		repository = new AtomicReservableReference<TreeContext<T>>(_tc);
		uuid = _uuid;
		writer = _writer;
		editor = _editor;
	}

	@Override
	public JungleTreeEditor getTreeEditor()
	{
		TreeContext<T> tc = repository.get();
		DefaultTransactionManager<T> txManager = new DefaultTransactionManager<T>(writer,tc,repository,uuid);
		T root = tc.getTreeNode();
		return new DefaultJungleTreeEditor<T>(root,txManager,editor);
	}

	@Override
	public JungleTreeEditor getLocalTreeEditor()
	{
		return getTreeEditor();
	}
	
	@Override
	public TreeNode<T> getRootNode()
	{
		TreeContext<T> tc = repository.get();
		ChangeSet<T> cs = tc.getChangeSet();
		return cs.getRoot();
	}
}