--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/src/main/java/digilib/servlet/DigilibConfiguration.java	Tue Apr 26 20:24:31 2011 +0200
@@ -0,0 +1,117 @@
+/*
+ * DigilibConfiguration -- Holding all parameters for digilib servlet.
+ * 
+ * Digital Image Library servlet components
+ * 
+ * Copyright (C) 2001, 2002 Robert Casties (robcast@mail.berlios.de)
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ * 
+ * Please read license.txt for the full details. A copy of the GPL may be found
+ * at http://www.gnu.org/copyleft/lgpl.html
+ * 
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA
+ *  
+ */
+
+package digilib.servlet;
+
+import java.io.IOException;
+
+import org.apache.log4j.BasicConfigurator;
+import org.apache.log4j.Logger;
+
+import digilib.image.DocuImage;
+import digilib.image.DocuImageImpl;
+import digilib.io.ImageInput;
+import digilib.util.ParameterMap;
+
+/**
+ * Class to hold the digilib servlet configuration parameters. The parameters
+ * can be read from the digilib-config file and be passed to other servlets or
+ * beans. <br>errorImgFileName: image file to send in case of error. <br>
+ * denyImgFileName: image file to send if access is denied. <br>baseDirs:
+ * array of base directories in order of preference (prescaled versions first).
+ * <br>useAuth: use authentication information. <br>authConfPath:
+ * authentication configuration file. <br>... <br>
+ * 
+ * @author casties
+ *  
+ */
+public abstract class DigilibConfiguration extends ParameterMap {
+
+	/** DocuImage class instance */
+	protected static Class<DocuImageImpl> docuImageClass = null;
+
+	/** Log4J logger */
+	protected Logger logger = Logger.getLogger("digilib.config");
+
+	/**
+	 * Default constructor defines all parameters and their default values.
+	 *  
+	 */
+	public DigilibConfiguration() {
+		super(20);
+		// we start with a default logger config
+		BasicConfigurator.configure();
+		initParams();
+	}
+
+	/**
+	 * 
+	 */
+	protected void initParams() {
+		/*
+		 * Definition of parameters and default values. System parameters that
+		 * are not read from config file have a type 's'.
+		 */
+	}
+
+	/**
+	 * Creates a new DocuImage instance.
+	 * 
+	 * The type of DocuImage is specified by docuimage-class.
+	 * 
+	 * @return DocuImage
+	 */
+    public static DocuImage getDocuImageInstance() {
+		DocuImageImpl di = null;
+		try {
+			di = docuImageClass.newInstance();
+		} catch (Exception e) {
+		}
+		return di;
+	}
+
+	/**
+     * Check image size and type and store in ImageFile imgf
+     * 
+	 * @param imgf
+	 * @return
+	 * @throws IOException
+	 */
+	public static ImageInput identifyDocuImage(ImageInput imgf) throws IOException {
+	    // use fresh DocuImage instance
+	    DocuImage di = getDocuImageInstance();
+		return di.identify(imgf);
+	}
+	
+	/**
+	 * @return Returns the docuImageClass.
+	 */
+	public static Class<DocuImageImpl> getDocuImageClass() {
+		return docuImageClass;
+	}
+
+	/**
+	 * @param docuImageClass The docuImageClass to set.
+	 */
+	public static void setDocuImageClass(Class<DocuImageImpl> dic) {
+		docuImageClass = dic;
+	}
+}