1 files changed, 27 insertions, 0 deletions
diff --git a/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/PGPUserAttributeSubpacketVectorGenerator.java b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/PGPUserAttributeSubpacketVectorGenerator.java
new file mode 100644
index 000000000..66af84b33
--- /dev/null
+++ b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/PGPUserAttributeSubpacketVectorGenerator.java
@@ -0,0 +1,27 @@
+package org.spongycastle.openpgp;
+
+import org.spongycastle.bcpg.UserAttributeSubpacket;
+import org.spongycastle.bcpg.attr.ImageAttribute;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PGPUserAttributeSubpacketVectorGenerator
+{
+    private List list = new ArrayList();
+
+    public void setImageAttribute(int imageType, byte[] imageData)
+    {
+        if (imageData == null)
+        {
+            throw new IllegalArgumentException("attempt to set null image");
+        }
+
+        list.add(new ImageAttribute(imageType, imageData));
+    }
+
+    public PGPUserAttributeSubpacketVector generate()
+    {
+        return new PGPUserAttributeSubpacketVector((UserAttributeSubpacket[])list.toArray(new UserAttributeSubpacket[list.size()]));
+    }
+}