XpathCheckContext.java

/**
 * The MIT License (MIT)
 * Copyright (c) 2013 OMG BPMN Model Interchange Working Group
 *
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */

package org.omg.bpmn.miwg.xpath.util;

import org.omg.bpmn.miwg.api.AnalysisContext;
import org.w3c.dom.Node;

public class XpathCheckContext implements AnalysisContext {

	private String stackID;

	private String nodeID;

	private String id;

	public String getStackID() {
		return stackID;
	}

	public String getNodeID() {
		return nodeID;
	}

	public String getId() {
		return id;
	}

	private void selectID() {
		if (nodeID == null)
			id = nodeID;
		id = stackID;
	}

	private static String getNodeID(Node n) {
		if (n == null)
			return null;
		Node namedItem = n.getAttributes().getNamedItem("id");
		if (namedItem == null) {
			return null;
		}
		return namedItem.getNodeValue();
	}

	public static XpathCheckContext createTestContext(AbstractXpathCheck test) {
		XpathCheckContext ctx = new XpathCheckContext();

		ctx.nodeID = getNodeID(test.getCurrentNode());
		ctx.stackID = getNodeID(test.head());
		ctx.selectID();

		return ctx;
	}

}