Initial import.

[clinton/mirror/jspi/.git] / jspi / src / main / java / de / lohndirekt / print / IppRequestFactory.java

/**\r
 * Copyright (C) 2003 <a href="http://www.lohndirekt.de/">lohndirekt.de</a>\r
 *\r
 * This library is free software; you can redistribute it and/or\r
 * modify it under the terms of the GNU Lesser General Public\r
 * License as published by the Free Software Foundation; either\r
 * version 2.1 of the License, or (at your option) any later version.\r
 * \r
 * This library is distributed in the hope that it will be useful,\r
 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\r
 * Lesser General Public License for more details.\r
 * \r
 * You should have received a copy of the GNU Lesser General Public\r
 * License along with this library; if not, write to the Free Software\r
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
 *  \r
 */\r
package de.lohndirekt.print;\r
\r
import java.lang.reflect.Constructor;\r
import java.net.URI;\r
\r
import javax.print.attribute.AttributeSet;\r
import javax.print.attribute.HashAttributeSet;\r
import javax.print.attribute.standard.RequestingUserName;\r
\r
import de.lohndirekt.print.attribute.auth.RequestingUserPassword;\r
import de.lohndirekt.print.attribute.ipp.printerdesc.supported.OperationsSupported;\r
\r
/**\r
 * @author bpusch\r
 *  \r
 */\r
public final class IppRequestFactory {\r
\r
    final static String IPP_REQUEST_IMPL_KEY = "de.lohndirekt.print.IppRequest.Impl";\r
\r
    final static IppRequest createIppRequest(URI uri,\r
            OperationsSupported operation, RequestingUserName user,\r
            RequestingUserPassword passwd) {\r
        String requestClassName = System.getProperty(IPP_REQUEST_IMPL_KEY);\r
        IppRequest request = null;\r
        if (requestClassName == null) {\r
            request = new IppRequestCupsImpl(uri, operation);\r
        } else {\r
            Class clazz = null;\r
            try {\r
                clazz = Class.forName(requestClassName);\r
            } catch (ClassNotFoundException e) {\r
                throw new IllegalArgumentException("Class " + requestClassName\r
                        + " does not exist.");\r
            }\r
\r
            try {\r
                Constructor constructor = clazz\r
                        .getDeclaredConstructor(new Class[] { URI.class,\r
                                OperationsSupported.class });\r
                request = (IppRequest) constructor.newInstance(new Object[] {\r
                        uri, operation });\r
            } catch (Exception e) {\r
                throw new RuntimeException(e);\r
            }\r
        }\r
        if (user != null && passwd != null) {\r
            AttributeSet set = new HashAttributeSet();\r
            set.add(user);\r
            set.add(passwd);\r
            request.addOperationAttributes(set);\r
        }\r
        return request;\r
    }\r
}