org.rzo.yajsw.config.jnlp.JnlpSupport Maven / Gradle / Ivy

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YAJSW is a java centric implementation of the java service wrapper by tanuki (JSW). It aims at being mostly configuration compliant with the original. It should therefore be easy to switch from JSW to YAJSW.
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package org.rzo.yajsw.config.jnlp;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.commons.vfs2.FileObject;
import org.rzo.yajsw.util.Utils;
import org.rzo.yajsw.util.VFSUtils;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class JnlpSupport
{
	Document	_doc	= null;

	public JnlpSupport(String file) throws ParserConfigurationException, SAXException, IOException
	{
		FileObject fo = VFSUtils.resolveFile(".", file);
		if (fo == null || !fo.exists())
			throw new FileNotFoundException(file);
		InputStream in = fo.getContent().getInputStream();
		_doc = parseJnlp(in);
		in.close();
	}

	public PropertiesConfiguration toConfiguration(String defaultsFile) throws ConfigurationException, IOException
	{
		int i = 1;
		PropertiesConfiguration jnlpConf = new PropertiesConfiguration();

		List jars = getJars(_doc);
		for (Iterator it = jars.listIterator(); it.hasNext();)
		{
			jnlpConf.setProperty("wrapper.java.classpath." + i++, it.next());
		}

		jnlpConf.setProperty("wrapper.base", getCodebase(_doc));

		jnlpConf.setProperty("wrapper.java.app.mainclass", getMainClass(_doc));

		i = 1;
		for (Iterator it = getArguments(_doc).listIterator(); it.hasNext();)
		{
			jnlpConf.setProperty("wrapper.app.parameter." + i++, it.next());
		}
		i = 1;
		List props = getResourceProperties(_doc);
		for (Iterator it = props.listIterator(); it.hasNext();)
		{
			jnlpConf.setProperty("wrapper.java.additional." + i++, it.next());
		}

		i = 1;
		List resources = getResources(_doc);
		for (Iterator it = resources.listIterator(); it.hasNext();)
		{
			jnlpConf.setProperty("wrapper.resource." + i++, it.next());
		}

		if (defaultsFile == null || "".equals(defaultsFile))
			return jnlpConf;

		// jnlpConf.addProperty("include", defaultsFile);

		if (defaultsFile != null)
		{
			PropertiesConfiguration defaultsConf = new PropertiesConfiguration();
			FileObject fo = VFSUtils.resolveFile(".", defaultsFile);
			InputStream in = fo.getContent().getInputStream();
			defaultsConf.load(in);
			in.close();
			for (Iterator it = defaultsConf.getKeys(); it.hasNext();)
			{
				String key = (String) it.next();
				if (jnlpConf.containsKey(key))
					System.out.println("configuration conflict: " + key);
				else
					jnlpConf.addProperty(key, defaultsConf.getProperty(key));
			}
		}

		return jnlpConf;

	}

	private Document parseJnlp(InputStream in) throws ParserConfigurationException, SAXException, IOException
	{
		Document doc = null;
		// Get Document Builder Factory
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

		// Turn off validation, and turn off namespaces
		factory.setValidating(false);
		factory.setNamespaceAware(false);

		DocumentBuilder builder = factory.newDocumentBuilder();

		doc = builder.parse(in);

		return doc;
	}

	private static List getJars(Document doc)
	{
		ArrayList result = new ArrayList();
		NodeList args = doc.getElementsByTagName("jar");
		for (int i = 0; i < args.getLength(); i++)
		{
			result.add(args.item(i).getAttributes().getNamedItem("href").getTextContent());
		}
		return result;
	}

	private static List getResources(Document doc)
	{
		ArrayList result = new ArrayList();
		NodeList args = doc.getElementsByTagName("icon");
		for (int i = 0; i < args.getLength(); i++)
		{
			result.add(args.item(i).getAttributes().getNamedItem("href").getTextContent());
		}
		return result;
	}

	private static List getResourceProperties(Document doc)
	{
		ArrayList result = new ArrayList();
		NodeList args = doc.getElementsByTagName("property");
		for (int i = 0; i < args.getLength(); i++)
		{
			String key = args.item(i).getAttributes().getNamedItem("name").getTextContent();
			String value = args.item(i).getAttributes().getNamedItem("value").getTextContent();
			result.add(Utils.getDOption(key, value));
		}
		return result;
	}

	private static List getArguments(Document doc)
	{
		ArrayList result = new ArrayList();
		NodeList args = doc.getElementsByTagName("argument");
		for (int i = 0; i < args.getLength(); i++)
		{
			result.add(args.item(i).getTextContent());
		}
		return result;
	}

	private static Object getMainClass(Document doc)
	{
		return doc.getElementsByTagName("application-desc").item(0).getAttributes().getNamedItem("main-class").getTextContent();
	}

	private static String getCodebase(Document doc)
	{
		return doc.getElementsByTagName("jnlp").item(0).getAttributes().getNamedItem("codebase").getTextContent();
	}

}