net.segoia.scriptdao.core.XmlCommandParser Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of script-dao Show documentation

Library to support dynamic command generation based on Apache Velocity templates

There is a newer version: 1.0.0

/**
 * script-dao - Library to support dynamic command generation based on Apache Velocity templates
 * Copyright (C) 2009  Adrian Cristian Ionescu - https://github.com/acionescu
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.segoia.scriptdao.core;

import java.util.ArrayList;
import java.util.List;

import net.segoia.scriptdao.core.exceptions.ParseCommandException;

import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class XmlCommandParser implements CommandParser{
	private static String COMMAND = "command";
	private static String NAME = "name";
	private static String VERSION = "version";
	private static String PARAMETERS = "parameters";
	private static String PARAMETER = "parameter";
	private static String SCRIPT = "script";
	private static String TYPE = "type";
	
	public CommandTemplate parseCommand(Node node) throws ParseCommandException{
		CommandTemplate commandTemplate = new CommandTemplate();
		
		if(node == null){
			throw new ParseCommandException("The specified node cannot be null!");
		}
		
		if(node.getNodeName().equals(COMMAND)){
			NamedNodeMap attributes = node.getAttributes();
			if(attributes == null){
				throw new ParseCommandException("The attribute '"+NAME+"' must be specified for tag '"+COMMAND+"'.");
			}
			//get the command name
			Node nameAttribute = attributes.getNamedItem(NAME);			
			if(nameAttribute == null){
				throw new ParseCommandException("The attribute '"+NAME+"' must be specified for tag '"+COMMAND+"'.");
			}
			else{
				commandTemplate.setName(nameAttribute.getNodeValue());
			}
			//get the command type
			Node typeAttribute = attributes.getNamedItem(TYPE);
			if(typeAttribute != null){
				commandTemplate.setType(typeAttribute.getNodeValue());
			}			
			//get the command version
			Node versionAttribute = attributes.getNamedItem(VERSION);
			if(versionAttribute != null){
				commandTemplate.setVersion(versionAttribute.getNodeValue());
			}
			
			NodeList commandChildNodes = node.getChildNodes();
			
			for(int i=0;i parameters = new ArrayList();
					
					for(int j=0;j