/*
* RomRaider Open-Source Tuning, Logging and Reflashing
* Copyright (C) 2006-2017 RomRaider.com
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package com.romraider.logger.ecu.definition.xml;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
/**
* Parse an ECU Definition XML file and return the attributes of the
* table name supplied.
*/
public final class EcuTableDefinitionHandler {
private EcuTableDefinitionHandler() {
}
/**
* Parse a given ECU Definition XML file and return the attributes of the
* table name supplied.
* @param document - W3C DOM Document of an ECU definition XML file.
* @param inheritanceNodeList - a List of Nodes of the 'rom' parents
* to the CAL ID supplied.
* @param tableName - the name of the table to find.
* @return a Map of table and scaling name/value attributes.
*/
public static final Map<String, String> getTableDefinition(
Document document,
List<Node> inheritanceNodeList,
String tableName) {
final Map<String, String> table =
new HashMap<String, String>();
for (Node inheritIdNode : inheritanceNodeList) {
get2dTableMap(inheritIdNode, tableName, table);
}
return table;
}
/**
* For the given Node and Table Name populate a Map with the table's
* attributes and the scaling attributes.
* @param xpath - the XPath evaluation environment.
* @param node - the 'rom' Node to root the search within.
* @param tableName - the Table Name to locate.
* @param tableMap2d - a Map to populate with attribute names and values.
*/
private static final void get2dTableMap(
Node node, String tableName,
Map<String, String> tableMap2d) {
final XPathFactory xpf = XPathFactory.newInstance();
final XPath xpath = xpf.newXPath();
try {
final Node tableNode = (Node) xpath.evaluate(
"table[@name='" + tableName + "']",
node, XPathConstants.NODE);
addAttributesAsMap(tableNode, tableMap2d);
final Node scalingNode = (Node) xpath.evaluate(
"scaling",
tableNode, XPathConstants.NODE);
addAttributesAsMap(scalingNode, tableMap2d);
}
catch (NullPointerException e) {
}
catch (XPathExpressionException e) {
e.printStackTrace();
}
}
/**
* Convert XML attributes to a Map.
* @param node - the Node containing the attributes.
* @param tableMap - the Map to populate with attribute names and values.
*/
private static final void addAttributesAsMap(
Node node, Map<String, String> tableMap) {
final NamedNodeMap attrs = node.getAttributes();
for (int i = 0; i < attrs.getLength(); i++) {
if (!tableMap.containsKey(attrs.item(i).getNodeName())) {
tableMap.put(
attrs.item(i).getNodeName(),
attrs.item(i).getNodeValue());
}
}
}
}