DefaultNodeService.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2007-2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
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package org.opennms.netmgt.correlation.drools;

import org.opennms.netmgt.dao.NodeDao;
import org.opennms.netmgt.model.OnmsNode;
import org.springframework.util.Assert;

/**
 * <p>DefaultNodeService class.</p>
 *
 * @author <a href="mailto:brozow@opennms.org">Mathew Brozowski</a>
 * @version $Id: $
 */
public class DefaultNodeService implements NodeService {
    
    private NodeDao m_nodeDao;

    /** {@inheritDoc} */
    public Long getParentNode(final Long nodeid) {
    	final OnmsNode node = m_nodeDao.get(nodeid.intValue());
        Assert.notNull(node, "Unable to find node with id "+nodeid);
        
        final OnmsNode parent = node.getParent();
        return (parent == null ? null : new Long(parent.getId().longValue()));
    }

    /**
     * <p>setNodeDao</p>
     *
     * @param nodeDao a {@link org.opennms.netmgt.dao.NodeDao} object.
     */
    public void setNodeDao(final NodeDao nodeDao) {
        m_nodeDao = nodeDao;
    }

}