XMLDataMapLoader_V3_0_0_1.java

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 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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package org.apache.cayenne.project.upgrade.v6;

import java.io.InputStream;
import java.net.URL;

import org.apache.cayenne.CayenneRuntimeException;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.MapLoader;
import org.apache.cayenne.resource.Resource;
import org.xml.sax.InputSource;

/**
 * @since 3.1
 */
class XMLDataMapLoader_V3_0_0_1 {

	public DataMap load(Resource configurationResource) throws CayenneRuntimeException {

		MapLoader mapLoader = new MapLoader();
		URL url = configurationResource.getURL();

		DataMap map;

		try (InputStream in = url.openStream();) {

			map = mapLoader.loadDataMap(new InputSource(in));
		} catch (Exception e) {
			throw new CayenneRuntimeException("Error loading configuration from %s", e, url);
		}

		return map;
	}
}