JobSetup.java example

Explorer
cloudgraph-master
/**
 *        CloudGraph Community Edition (CE) License
 * 
 * This is a community release of CloudGraph, a dual-license suite of
 * Service Data Object (SDO) 2.1 services designed for relational and 
 * big-table style "cloud" databases, such as HBase and others. 
 * This particular copy of the software is released under the 
 * version 2 of the GNU General Public License. CloudGraph was developed by 
 * TerraMeta Software, Inc.
 * 
 * Copyright (c) 2013, TerraMeta Software, Inc. All rights reserved.
 * 
 * General License information can be found below.
 * 
 * This distribution may include materials developed by third
 * parties. For license and attribution notices for these
 * materials, please refer to the documentation that accompanies
 * this distribution (see the "Licenses for Third-Party Components"
 * appendix) or view the online documentation at 
 * <http://cloudgraph.org/licenses/>. 
 */
package org.cloudgraph.job;

import org.plasma.query.Query;
import org.plasma.query.model.From;
import org.plasma.sdo.PlasmaType;
import org.plasma.sdo.helper.PlasmaTypeHelper;

/**
 * A parallel compute job. 
 * @author Scott Cinnamond
 * @since 0.6.3
 */
public abstract class JobSetup {
	
	
	protected static PlasmaType getRootType(Query query) {
		From from = query.getModel().getFromClause();
		if (from.getEntity() == null)
			throw new IllegalArgumentException(
					"given query has no root type and/or URI");
		if (from.getEntity().getName() == null
				|| from.getEntity().getNamespaceURI() == null)
			throw new IllegalArgumentException(
					"given query has no root type and/or URI");
		PlasmaType type = (PlasmaType) PlasmaTypeHelper.INSTANCE.getType(from
				.getEntity().getNamespaceURI(), from.getEntity().getName());
		return type;
	}


}