/*
    * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
    * the spring framework, http://el4j.sf.net
    * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
    * 1000 Lausanne, Switzerland, http://www.elca.ch
    *
    * EL4J is published under the GNU Lesser General Public License (LGPL)
    * Version 2.1. See http://www.gnu.org/licenses/
    *
   * 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 Lesser General Public License for more details.
   *
   * For alternative licensing, please contact info@elca.ch
   */
  package ch.elca.el4j.services.statistics.detailed.jmx;
  
  import java.util.List;
  
  import javax.management.MBeanServer;
  import javax.management.ObjectName;
  
  import org.springframework.beans.factory.DisposableBean;
  import org.springframework.beans.factory.InitializingBean;
  
  import ch.elca.el4j.services.monitoring.jmx.JmxHtmlFormatter;
  import ch.elca.el4j.services.statistics.detailed.MeasureItem;
  import ch.elca.el4j.services.statistics.detailed.processing.DataRepository;
  import ch.elca.el4j.services.statistics.detailed.processing.StatisticsOutputter;
  import ch.elca.el4j.util.codingsupport.Reject;
  
  /**
   * This class publishes the detailed statistics through JMX.
   *
   * @svnLink $Revision: 3874 $;$Date: 2009-08-04 14:25:40 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/detailed_statistics/jmx/src/main/java/ch/elca/el4j/services/statistics/detailed/jmx/DetailedStatisticsReporter.java $
   *
   * @author David Stefan (DST)
   */
  public class DetailedStatisticsReporter implements
  	DetailedStatisticsReporterMBean, InitializingBean, DisposableBean {
  
  	/** The address that points to this class. */
  	public static final String NAME
  		= "Performance:key=detailedStatisticsReporter";
  
  	/** The MBean server where this class is registered in. */
  	private MBeanServer m_server;
  
  	/** The DataAssembler from which supplies the data for the statistics. */
  	private DataRepository m_dataRepository;
  
  	/**
  	 * @return Retruns the MBean server instance where this instance is
  	 *         registered in.
  	 */
  	public MBeanServer getServer() {
  		return m_server;
  	}
  
  	/**
  	 * Sets the MBean server where this instance has to register.
  	 *
  	 * @param beanServer
  	 *            The MBean server to set.
  	 */
  	public void setServer(MBeanServer beanServer) {
  		m_server = beanServer;
  	}
  
  	/**
  	 * @return Retruns the DataAssembler which supplies the data for the
  	 *         statistics.
  	 */
  	public DataRepository getDataRepository() {
  		return m_dataRepository;
  	}
  
  	/**
  	 * Sets the DataAssembler.
  	 *
  	 * @param dataRepository
  	 *            The DataRepository to set
  	 */
  	public void setDataRepository(DataRepository dataRepository) {
  		m_dataRepository = dataRepository;
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	public void afterPropertiesSet() throws Exception {
  		if (m_server == null) {
  			throw new IllegalStateException("m_beanServer has not been set!");
  		}
  
  		m_server.registerMBean(this, new ObjectName(NAME));
  	}
  
 	/**
 	 * {@inheritDoc}
 	 */
 	public void destroy() throws Exception {
 		if (m_server != null) {
 			m_server.unregisterMBean(new ObjectName(NAME));
 		}
 	}
 
 	/**
 	 * {@inheritDoc}
 	 */
 	public String showMeasureIDTable() {
 		String result = "";
 		String[][] table;
 		// Due to unexpected method calls, display all measurements for now.
 		List<MeasureItem> measureItems
 			= m_dataRepository.getAllMeasureItems();
 		// Add one row for labeling
 		int noOfRowsInTable = measureItems.size() + 1;
 		// Checkstyle: MagicNumber off
 		table = new String[noOfRowsInTable][3];
 		// Checkstyle: MagicNumber on
 
 		table[0][0] = "MeasureID";
 		table[0][1] = "Duration in [ms]";
 		table[0][2] = "Invocation Start";
 		
 		int i = 1;
 		for (MeasureItem m : measureItems) {
 			table[i][0] = m.getID().getFormattedString();
 			table[i][1] = Long.toString(m.getDuration());
 			table[i][2] = m.getEjbName() + "." + m.getMethodName();
 			i++;
 		}
 		result = JmxHtmlFormatter.getHtmlTable(table);
 		return result;
 	}
 
 	/**
 	 *
 	 * {@inheritDoc}
 	 */
 	public void createCSVFile(String filename, String measureId) {
 		Reject.ifNull(filename);
 		Reject.ifNull(measureId);
 		StatisticsOutputter sv = new StatisticsOutputter(m_dataRepository
 			.getAllMeasureItems());
 		sv.createCVSFile(filename, measureId);
 	}
 
 	/**
 	 * {@inheritDoc}
 	 */
 	public void createDiagramFile(String filename, String measureId) {
 		createDiagramFile(filename, measureId, 0, 0);
 		
 	}
 
 	/**
 	 * {@inheritDoc}
 	 */
 	public void createDiagramFile(String filename, String measureId,
 		int width, int height) {
 		Reject.ifNull(filename);
 		Reject.ifNull(measureId);
 		StatisticsOutputter sv = new StatisticsOutputter(m_dataRepository
 			.getAllMeasureItems());
 		sv.createDiagFile(filename, measureId, width, height);
 		
 	}
 }