1 files changed, 52 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/DERExternalParser.java b/core/src/main/java/org/spongycastle/asn1/DERExternalParser.java
new file mode 100644
index 00000000..39f46b52
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/asn1/DERExternalParser.java
@@ -0,0 +1,52 @@
+package org.spongycastle.asn1;
+
+import java.io.IOException;
+
+public class DERExternalParser
+    implements ASN1Encodable, InMemoryRepresentable
+{
+    private ASN1StreamParser _parser;
+
+    /**
+     * 
+     */
+    public DERExternalParser(ASN1StreamParser parser)
+    {
+        this._parser = parser;
+    }
+
+    public ASN1Encodable readObject()
+        throws IOException
+    {
+        return _parser.readObject();
+    }
+
+    public ASN1Primitive getLoadedObject()
+        throws IOException
+    {
+        try
+        {
+            return new DERExternal(_parser.readVector());
+        }
+        catch (IllegalArgumentException e)
+        {
+            throw new ASN1Exception(e.getMessage(), e);
+        }
+    }
+    
+    public ASN1Primitive toASN1Primitive()
+    {
+        try 
+        {
+            return getLoadedObject();
+        }
+        catch (IOException ioe) 
+        {
+            throw new ASN1ParsingException("unable to get DER object", ioe);
+        }
+        catch (IllegalArgumentException ioe) 
+        {
+            throw new ASN1ParsingException("unable to get DER object", ioe);
+        }
+    }
+}