From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001
From: tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Fri, 1 Dec 2006 12:20:24 +0000
Subject: Initial import of release 2.2.

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../java/com/lowagie/bc/asn1/DERNumericString.java | 123 +++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 src/main/java/com/lowagie/bc/asn1/DERNumericString.java

(limited to 'src/main/java/com/lowagie/bc/asn1/DERNumericString.java')

diff --git a/src/main/java/com/lowagie/bc/asn1/DERNumericString.java b/src/main/java/com/lowagie/bc/asn1/DERNumericString.java
new file mode 100644
index 0000000..6d58c6c
--- /dev/null
+++ b/src/main/java/com/lowagie/bc/asn1/DERNumericString.java
@@ -0,0 +1,123 @@
+package com.lowagie.bc.asn1;
+
+import java.io.IOException;
+
+/**
+ * DER NumericString object - this is an ascii string of characters {0,1,2,3,4,5,6,7,8,9, }.
+ */
+public class DERNumericString
+    extends DERObject
+    implements DERString
+{
+    String  string;
+
+    /**
+     * return a Numeric string from the passed in object
+     *
+     * @exception IllegalArgumentException if the object cannot be converted.
+     */
+    public static DERNumericString getInstance(
+        Object  obj)
+    {
+        if (obj == null || obj instanceof DERNumericString)
+        {
+            return (DERNumericString)obj;
+        }
+
+        if (obj instanceof ASN1OctetString)
+        {
+            return new DERNumericString(((ASN1OctetString)obj).getOctets());
+        }
+
+        if (obj instanceof ASN1TaggedObject)
+        {
+            return getInstance(((ASN1TaggedObject)obj).getObject());
+        }
+
+        throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
+    }
+
+    /**
+     * return an Numeric String from a tagged object.
+     *
+     * @param obj the tagged object holding the object we want
+     * @param explicit true if the object is meant to be explicitly
+     *              tagged false otherwise.
+     * @exception IllegalArgumentException if the tagged object cannot
+     *               be converted.
+     */
+    public static DERNumericString getInstance(
+        ASN1TaggedObject obj,
+        boolean          explicit)
+    {
+        return getInstance(obj.getObject());
+    }
+
+    /**
+     * basic constructor - with bytes.
+     */
+    public DERNumericString(
+        byte[]   string)
+    {
+        char[]  cs = new char[string.length];
+
+        for (int i = 0; i != cs.length; i++)
+        {
+            cs[i] = (char)(string[i] & 0xff);
+        }
+
+        this.string = new String(cs);
+    }
+
+    /**
+     * basic constructor - with string.
+     */
+    public DERNumericString(
+        String   string)
+    {
+        this.string = string;
+    }
+
+    public String getString()
+    {
+        return string;
+    }
+
+    public byte[] getOctets()
+    {
+        char[]  cs = string.toCharArray();
+        byte[]  bs = new byte[cs.length];
+
+        for (int i = 0; i != cs.length; i++)
+        {
+            bs[i] = (byte)cs[i];
+        }
+
+        return bs; 
+    }
+
+    void encode(
+        DEROutputStream  out)
+        throws IOException
+    {
+        out.writeEncoded(NUMERIC_STRING, this.getOctets());
+    }
+
+    public int hashCode()
+    {
+        return this.getString().hashCode();
+    }
+
+    public boolean equals(
+        Object  o)
+    {
+        if (!(o instanceof DERNumericString))
+        {
+            return false;
+        }
+
+        DERNumericString  s = (DERNumericString)o;
+
+        return this.getString().equals(s.getString());
+    }
+}
-- 
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