REST Portlet Activator Yet Another Attempt

package edu.gettysburg.nkeiter.transportation.portlet.osgi;

import com.dotcms.repackage.org.apache.commons.io.FileUtils;
import com.dotcms.repackage.org.apache.logging.log4j.LogManager;
import com.dotcms.repackage.org.apache.logging.log4j.core.LoggerContext;

import com.dotmarketing.loggers.Log4jUtil;
import com.dotmarketing.osgi.GenericBundleActivator;
import com.dotmarketing.util.Config;
import com.dotmarketing.util.Logger;

import com.liferay.util.FileUtil;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Enumeration;

import javax.servlet.ServletContext;

import org.osgi.framework.BundleContext;

public class Activator extends GenericBundleActivator
{
	public static Class<Activator> clazz = Activator.class;

	private LoggerContext pluginLoggerContext;

	private static final String PLUGIN_NAME = "Transportation Portlets";
	private static final String PORTLET_1 = "REST_PORTLET_TRANSPORTATION_SCHEDULING";
	private static final String PORTLET_2 = "REST_PORTLET_TRANSPORTATION_CALENDAR";
	private static final String PORTLET_3 = "REST_PORTLET_TRANSPORTATION";
	private static final String[] PORTLETS = { PORTLET_1, PORTLET_2, PORTLET_3 };

	private void copyJSPs( BundleContext bundleContext )
	{
		for ( String portlet : PORTLETS )
		{
			String portletDirectory = portlet.toLowerCase();

			String containerFolder = "/jsp/" + portletDirectory + "/";

			ServletContext servletContext = Config.CONTEXT;
			String destinationPath = servletContext.getRealPath( "WEB-INF" );

			try
			{
				// Find all the JSP resources under this folder
				Enumeration<URL> entries = bundleContext.getBundle().findEntries( containerFolder, "*.*", true );

				while ( entries.hasMoreElements() )
				{
					URL entryUrl = entries.nextElement();
					String entryPath = entryUrl.getPath();

					String resourceFilePath = destinationPath + entryPath;
					File resourceFile = new File( resourceFilePath );

					if ( !resourceFile.exists() )
					{
						InputStream inputStream = null;
						OutputStream outputStream = null;

						try
						{
							if ( !resourceFile.getParentFile().exists() )
							{
								resourceFile.getParentFile().mkdirs();
							}

							resourceFile.createNewFile();

							inputStream = entryUrl.openStream();
							outputStream = new FileOutputStream( resourceFile );

							byte[] buffer = new byte[1024];
							int length;

							while ( (length = inputStream.read( buffer )) > 0 )
							{
								outputStream.write( buffer, 0, length );
							}

						}
						catch ( Exception exception )
						{
							Logger.error( this, "Can't copy file [" + resourceFilePath + "]", exception );
						}
						finally
						{
							if ( inputStream != null )
							{
								inputStream.close();
							}

							if ( outputStream != null )
							{
								outputStream.flush();
								outputStream.close();
							}

						}
					}

				}
			}
			catch ( Exception exception )
			{
				Logger.error( this, "Can't copy files [" + portletDirectory + "]", exception );
			}

		}
	}

	private void deleteJSPs()
	{
		for ( String portlet : PORTLETS )
		{
			String portletDirectory = portlet.toLowerCase();
			ServletContext servletContext = Config.CONTEXT;
			String destinationPath = servletContext.getRealPath( "WEB-INF" ) + "jsp/" + portletDirectory + "/";
			File destinationDirectory = new File ( destinationPath );

			try
			{
				FileUtil.deltree( destinationDirectory );
			}
			catch ( Exception exception )
			{
				Logger.error( this, "Can't delete directory [" + portletDirectory + "]", exception );
			}

		}
	}

	@Override
	public void start( BundleContext bundleContext ) throws Exception
	{
		// Initializing log4j...
		LoggerContext dotcmsLoggerContext = Log4jUtil.getLoggerContext();

		// Initialing the log4j context of this plugin based on the dotCMS logger context
		this.pluginLoggerContext = (LoggerContext) LogManager.getContext( clazz.getClassLoader(), false, dotcmsLoggerContext, dotcmsLoggerContext.getConfigLocation() );

		Logger.info( this, "Got to start( BundleContext ) " + PLUGIN_NAME );

		// Initializing services...
		initializeServices( bundleContext );

		// Copy JSPs
		copyJSPs( bundleContext );

		// Register our portlets
		String[] xmls = new String[]{ "conf/liferay-portlet.xml" };
		registerPortlets( bundleContext, xmls );
	}

	@Override
	public void stop( BundleContext bundleContext ) throws Exception
	{
		Logger.info( this, "Got to stop( BundleContext ) " + PLUGIN_NAME );

		// Unregister all bundle services
		unregisterServices( bundleContext );

		// Delete JSPs
		deleteJSPs();

		// Shutting down log4j in order to avoid memory leaks
		Log4jUtil.shutdown( this.pluginLoggerContext );
	}
}