1 files changed, 79 insertions, 0 deletions
diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Helper.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Helper.java
new file mode 100644
index 00000000..21a6bbdb
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Helper.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.signer.pdfas;
+
+// Imports
+import java.io.File;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.SignatureException;
+import at.gv.egiz.pdfas.lib.api.PdfAs;
+import at.gv.egiz.pdfas.lib.api.PdfAsFactory;
+
+/**
+ * PDF-AS 4 Helper
+ */
+public class PdfAs4Helper {
+	/**
+	 * SLF4J Logger instance
+	 **/
+	@SuppressWarnings("unused")
+	private static final Logger log = LoggerFactory
+			.getLogger(PdfAs4Helper.class);
+
+	/**
+	 * PDF-AS Object
+	 */
+	private static PdfAs pdfAs = null;
+
+	/**
+	 * Gets PDF-AS Object
+	 * @return the PDF-AS Object
+	 * @throws SignatureException
+	 */
+	public static synchronized PdfAs getPdfAs() throws SignatureException {
+		if (pdfAs == null) {
+			try {
+				pdfAs = createPdfAs();
+			} catch(Exception e) {
+				throw new SignatureException(e);
+			}
+		}
+		return pdfAs;
+	}
+
+	/**
+	 * Creates PDF-AS Object
+	 * @return the PDF-AS Object
+	 * @throws PdfAsException
+	 */
+	private static PdfAs createPdfAs() {
+		File directory = new File (".");
+		System.setProperty("log4j.configuration", directory.getAbsolutePath() +
+				"/log4j.properties");
+		return PdfAsFactory.createPdfAs(new File(getWorkDir()));
+	}
+
+	/**
+	 * Provides the working directory
+	 * @return the working directory
+	 */
+	public static String getWorkDir() {
+		return System.getProperty("user.home") + "/.pdf-over";
+	}
+}