1 files changed, 121 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x509/Targets.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x509/Targets.java
new file mode 100644
index 000000000..a67b69840
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x509/Targets.java
@@ -0,0 +1,121 @@
+package org.spongycastle.asn1.x509;
+
+import java.util.Enumeration;
+
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.DERSequence;
+
+/**
+ * Targets structure used in target information extension for attribute
+ * certificates from RFC 3281.
+ * 
+ * <pre>
+ *            Targets ::= SEQUENCE OF Target
+ *           
+ *            Target  ::= CHOICE {
+ *              targetName          [0] GeneralName,
+ *              targetGroup         [1] GeneralName,
+ *              targetCert          [2] TargetCert
+ *            }
+ *           
+ *            TargetCert  ::= SEQUENCE {
+ *              targetCertificate    IssuerSerial,
+ *              targetName           GeneralName OPTIONAL,
+ *              certDigestInfo       ObjectDigestInfo OPTIONAL
+ *            }
+ * </pre>
+ * 
+ * @see org.spongycastle.asn1.x509.Target
+ * @see org.spongycastle.asn1.x509.TargetInformation
+ */
+public class Targets
+    extends ASN1Object
+{
+    private ASN1Sequence targets;
+
+    /**
+     * Creates an instance of a Targets from the given object.
+     * <p>
+     * <code>obj</code> can be a Targets or a {@link ASN1Sequence}
+     * 
+     * @param obj The object.
+     * @return A Targets instance.
+     * @throws IllegalArgumentException if the given object cannot be
+     *             interpreted as Target.
+     */
+    public static Targets getInstance(Object obj)
+    {
+        if (obj instanceof Targets)
+        {
+            return (Targets)obj;
+        }
+        else if (obj != null)
+        {
+            return new Targets(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    /**
+     * Constructor from ASN1Sequence.
+     * 
+     * @param targets The ASN.1 SEQUENCE.
+     * @throws IllegalArgumentException if the contents of the sequence are
+     *             invalid.
+     */
+    private Targets(ASN1Sequence targets)
+    {
+        this.targets = targets;
+    }
+
+    /**
+     * Constructor from given targets.
+     * <p>
+     * The vector is copied.
+     * 
+     * @param targets A <code>Vector</code> of {@link Target}s.
+     * @see Target
+     * @throws IllegalArgumentException if the vector contains not only Targets.
+     */
+    public Targets(Target[] targets)
+    {
+        this.targets = new DERSequence(targets);
+    }
+
+    /**
+     * Returns the targets in a <code>Vector</code>.
+     * <p>
+     * The vector is cloned before it is returned.
+     * 
+     * @return Returns the targets.
+     */
+    public Target[] getTargets()
+    {
+        Target[] targs = new Target[targets.size()];
+        int count = 0;
+        for (Enumeration e = targets.getObjects(); e.hasMoreElements();)
+        {
+            targs[count++] = Target.getInstance(e.nextElement());
+        }
+        return targs;
+    }
+
+    /**
+     * Produce an object suitable for an ASN1OutputStream.
+     * 
+     * Returns:
+     * 
+     * <pre>
+     *            Targets ::= SEQUENCE OF Target
+     * </pre>
+     * 
+     * @return a ASN1Primitive
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        return targets;
+    }
+}