1 files changed, 72 insertions, 0 deletions
diff --git a/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/SignatureCreationService.java b/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/SignatureCreationService.java
new file mode 100644
index 000000000..3333fff9c
--- /dev/null
+++ b/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/api/SignatureCreationService.java
@@ -0,0 +1,72 @@
+/*
+* Copyright 2003 Federal Chancellery Austria
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egovernment.moa.spss.api;
+
+import at.gv.egovernment.moa.spss.MOAException;
+
+import org.apache.commons.discovery.tools.DiscoverClass;
+
+
+import at.gv.egovernment.moa.spss.api.xmlsign.CreateXMLSignatureRequest;
+import at.gv.egovernment.moa.spss.api.xmlsign.CreateXMLSignatureResponse;
+
+/**
+ * Interface providing functions for signature creation.
+ * 
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public abstract class SignatureCreationService {
+
+  /** The default implementation class. */
+  private static final String DEFAULT_IMPLEMENTATION =
+    "at.gv.egovernment.moa.spss.server.invoke.SignatureCreationServiceImpl";
+  
+  /** The single instance of this class. */  
+  private static SignatureCreationService instance = null;
+
+  /**
+   * Get an instance of the <code>SignatureCreationService</code>.
+   * 
+   * @return A concrete instance of the <code>SignatureCreationService</code>.
+   */
+  public static synchronized SignatureCreationService getInstance() {
+    if (instance == null) {
+      try {
+        DiscoverClass discover = new DiscoverClass();
+        instance =
+          (SignatureCreationService) discover.newInstance(
+            SignatureCreationService.class,
+            DEFAULT_IMPLEMENTATION);
+      } catch (Exception e) {
+        // this can not happen since we provide a valid default 
+        // implementation
+      }
+    }
+    return instance;
+  }
+  
+  /**
+   * Create an XML signature.
+   * 
+   * @param request Information on how to create the signature.
+   * @return A <code>CreateXMLSignatureResponse</code> containing the 
+   * signature.
+   * @throws MOAException Error in server side MOA module.
+   */
+  public abstract CreateXMLSignatureResponse createXMLSignature(CreateXMLSignatureRequest request)
+    throws MOAException;
+}