Placeholder-image handling

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@613 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 49 insertions, 0 deletions

diff --git a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java b/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java
new file mode 100644
index 0000000..e8c157c
--- /dev/null
+++ b/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java
@@ -0,0 +1,49 @@
+package at.gv.egiz.pdfas.placeholder;

+

+/**

+ * Store and retrieve {@link SignaturePlaceholderData} in/from a thread local context.

+ * 

+ * @author exthex

+ *

+ */

+public class SignaturePlaceholderContext {

+   

+   private ThreadLocal sigHolder = new ThreadLocal();

+   

+   private static SignaturePlaceholderContext instance = new SignaturePlaceholderContext();

+   

+   /**

+    * Constructor. Private because this is a singleton.

+    */

+   private SignaturePlaceholderContext() {

+      

+   }

+

+   /**

+    * Get the {@link SignaturePlaceholderData} which is currently bound to this thread.

+    * Might be null.

+    * 

+    * @return

+    */

+   public static SignaturePlaceholderData getSignaturePlaceholderData(){

+      return (SignaturePlaceholderData)instance.sigHolder.get();

+   }

+

+   /**

+    * 

+    * @return true if there is currently a {@link SignaturePlaceholderData} bound to this thread, false otherwise.

+    */

+   public static boolean isSignaturePlaceholderDataSet() {

+      return instance.sigHolder.get() != null;

+   }

+

+   /**

+    * Bind a {@link SignaturePlaceholderData} to this thread.

+    * If the given data is null, the context will be cleared.

+    * 

+    * @param data if null, clears the ThreadLocal, else binds the data to the current thread.

+    */

+   public static void setSignaturePlaceholderData(SignaturePlaceholderData data) {

+      instance.sigHolder.set(data);

+   }

+}