From 06b900642342afb680aab3b36fba9247e1e29aa9 Mon Sep 17 00:00:00 2001
From: pdanner <pdanner@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Fri, 26 Nov 2010 12:02:47 +0000
Subject: Placeholder-image handling

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@613 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../placeholder/SignaturePlaceholderContext.java   | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java

(limited to 'src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java')

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);
+   }
+}
-- 
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