Refactoring

git-svn-id: https://svn.iaik.tugraz.at/svn/egiz/prj/current/12PDF-OVER-4.0@12276 3a0b52a2-8410-0410-bc02-ff6273a87459

1 files changed, 58 insertions, 0 deletions

diff --git a/trunk/pdf-over-signator/src/main/java/at/asit/pdfover/signator/Signator.java b/trunk/pdf-over-signator/src/main/java/at/asit/pdfover/signator/Signator.java
new file mode 100644
index 00000000..4ba0b981
--- /dev/null
+++ b/trunk/pdf-over-signator/src/main/java/at/asit/pdfover/signator/Signator.java
@@ -0,0 +1,58 @@
+package at.asit.pdfover.signator;
+
+import java.util.EnumMap;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * PDF Signator Interface
+ */
+public class Signator {
+
+	private static Logger log = LoggerFactory.getLogger(Signator.class);
+
+	/**
+	 * List of available PDF signing libraries
+	 */
+	public enum Signers {
+		/**
+		 * PDF-AS
+		 */
+		PDFAS
+	};
+
+	private static Map<Signers, SignerFactory> factoryMap;
+
+	static {
+		factoryMap = new EnumMap<Signers, SignerFactory>(Signers.class);
+
+		try {
+			Class<?> pdfAsClass = Class.forName("at.asit.pdfover.signer.pdfas.PDFASSignerFactory");
+			SignerFactory factory = (SignerFactory)pdfAsClass.newInstance();
+			registerSigner(Signers.PDFAS, factory);
+		} catch (ClassNotFoundException e) {
+			log.error("PDF Signer Factory not found", e);
+			throw new RuntimeException("PDF Signer Factory not found", e);
+		} catch (InstantiationException e) {
+			log.error("PDF Signer Factory could not be instantiated", e);
+			throw new RuntimeException("PDF Signer Factory could not be instantiated", e);
+		} catch (IllegalAccessException e) {
+			log.error("PDF Signer Factory could not accessed", e);
+			throw new RuntimeException("PDF Signer Factory could not accessed", e);
+		}
+	}
+
+	private static void registerSigner(Signers signer, SignerFactory factory) {
+		factoryMap.put(signer, factory);
+	}
+
+	/**
+	 * Gets a PDF Signer according to the chosen signer library
+	 * @param signer the chosen Signer type
+	 * @return the PDF Signer
+	 */
+	public static Signer getSigner(Signers signer) {
+		return factoryMap.get(signer).createSigner();
+	}
+}