From 2b976f5364cfdbc37d3086019d93483c983eb80b Mon Sep 17 00:00:00 2001
From: David Hook <dgh@cryptoworkshop.com>
Date: Fri, 31 May 2013 17:07:45 +1000
Subject: initial reshuffle

---
 .../org/bouncycastle/asn1/cms/CompressedData.java  | 110 +++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 core/src/main/java/org/bouncycastle/asn1/cms/CompressedData.java

(limited to 'core/src/main/java/org/bouncycastle/asn1/cms/CompressedData.java')

diff --git a/core/src/main/java/org/bouncycastle/asn1/cms/CompressedData.java b/core/src/main/java/org/bouncycastle/asn1/cms/CompressedData.java
new file mode 100644
index 00000000..e9d9f679
--- /dev/null
+++ b/core/src/main/java/org/bouncycastle/asn1/cms/CompressedData.java
@@ -0,0 +1,110 @@
+package org.bouncycastle.asn1.cms;
+
+import org.bouncycastle.asn1.ASN1EncodableVector;
+import org.bouncycastle.asn1.ASN1Integer;
+import org.bouncycastle.asn1.ASN1Object;
+import org.bouncycastle.asn1.ASN1Primitive;
+import org.bouncycastle.asn1.ASN1Sequence;
+import org.bouncycastle.asn1.ASN1TaggedObject;
+import org.bouncycastle.asn1.BERSequence;
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+
+/** 
+ * RFC 3274 - CMS Compressed Data.
+ * <pre>
+ * CompressedData ::= SEQUENCE {
+ *  version CMSVersion,
+ *  compressionAlgorithm CompressionAlgorithmIdentifier,
+ *  encapContentInfo EncapsulatedContentInfo
+ * }
+ * </pre>
+ */
+public class CompressedData
+    extends ASN1Object
+{
+    private ASN1Integer           version;
+    private AlgorithmIdentifier  compressionAlgorithm;
+    private ContentInfo          encapContentInfo;
+
+    public CompressedData(
+        AlgorithmIdentifier compressionAlgorithm,
+        ContentInfo         encapContentInfo)
+    {
+        this.version = new ASN1Integer(0);
+        this.compressionAlgorithm = compressionAlgorithm;
+        this.encapContentInfo = encapContentInfo;
+    }
+    
+    private CompressedData(
+        ASN1Sequence seq)
+    {
+        this.version = (ASN1Integer)seq.getObjectAt(0);
+        this.compressionAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
+        this.encapContentInfo = ContentInfo.getInstance(seq.getObjectAt(2));
+
+    }
+
+    /**
+     * return a CompressedData object from a tagged object.
+     *
+     * @param _ato 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 object held by the
+     *          tagged object cannot be converted.
+     */
+    public static CompressedData getInstance(
+        ASN1TaggedObject _ato,
+        boolean _explicit)
+    {
+        return getInstance(ASN1Sequence.getInstance(_ato, _explicit));
+    }
+    
+    /**
+     * return a CompressedData object from the given object.
+     *
+     * @param obj the object we want converted.
+     * @exception IllegalArgumentException if the object cannot be converted.
+     */
+    public static CompressedData getInstance(
+        Object obj)
+    {
+        if (obj instanceof CompressedData)
+        {
+            return (CompressedData)obj;
+        }
+
+        if (obj != null)
+        {
+            return new CompressedData(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    public ASN1Integer getVersion()
+    {
+        return version;
+    }
+
+    public AlgorithmIdentifier getCompressionAlgorithmIdentifier()
+    {
+        return compressionAlgorithm;
+    }
+
+    public ContentInfo getEncapContentInfo()
+    {
+        return encapContentInfo;
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector v = new ASN1EncodableVector();
+
+        v.add(version);
+        v.add(compressionAlgorithm);
+        v.add(encapContentInfo);
+
+        return new BERSequence(v);
+    }
+}
-- 
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