FaktotumProductBean.java

/**
 * This file is part of Faktotum.
 *
 *
 *  Faktotum is free software: you can redistribute it and/or 
 *  modify it under the terms of the GNU Lesser General Public License 
 *  as published by the Free Software Foundation, either version 3 of 
 *  the License, or (at your option) any later version.
 *
 *  Faktotum 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.
 *
 *  You should have received a copy of the GNU Lesser General Public 
 *  License along with Faktotum.  
 *
 *  If not, see <http://www.gnu.org/licenses/>.
 */
package de.romankreisel.faktotum.beans;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.logging.Level;

import javax.ejb.EJB;
import javax.ejb.Stateless;

import de.romankreisel.faktotum.FaktotumContextListener;

/**
 * This class contains business code related to the Faktotum product
 * 
 * @author Roman Kreisel <mail@romankreisel.de>
 * 
 */
@Stateless
public class FaktotumProductBean extends FaktotumBean {

	@EJB
	private SettingBean settingBean;

	public Date getBuildDate() {
		return FaktotumContextListener.getBuildTime();
	}

	/**
	 * Returns the text from a license contained in the WAR
	 * 
	 * @param licenseName
	 * @return the license text or null, if the license doesn't exist or
	 *         couldn't be read
	 */
	private String getLicense(String licenseName) {
		try (InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("/resources/license/" + licenseName + ".txt");) {
			BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
			StringBuffer stringBuffer = new StringBuffer();
			String nextLine;
			while ((nextLine = reader.readLine()) != null) {
				stringBuffer.append(nextLine);
			}

			return stringBuffer.toString();
		} catch (IOException e) {
			this.getLogger().log(Level.WARNING, "Error reading license " + licenseName, e);
			return null;
		}
	}

	public String getLicenseApache2() {
		return this.getLicense("apache-2.0");
	}

	public String getLicenseLGPL3() {
		return this.getLicense("apache-2.0");
	}

	/**
	 * Gets the configureable product name of Faktotum.
	 * 
	 * @return the configured product name
	 */
	public String getProductName() {
		return this.settingBean.getStringSettingValue(SettingBean.SETTING_STRING_PRODUCT_NAME);
	}

	public Date getStartTime() {
		return FaktotumContextListener.getStartTime();
	}

	/**
	 * The version of Faktotum
	 * 
	 * @return the version number
	 */
	public String getVersion() {
		return FaktotumContextListener.getVersion();
	}
}