1 files changed, 155 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/x509/X509CertPairStoreSelector.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/x509/X509CertPairStoreSelector.java
new file mode 100644
index 000000000..e5676bcb1
--- /dev/null
+++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/x509/X509CertPairStoreSelector.java
@@ -0,0 +1,155 @@
+package org.spongycastle.x509;
+
+import org.spongycastle.util.Selector;
+
+/**
+ * This class is an <code>Selector</code> like implementation to select
+ * certificates pairs, which are e.g. used for cross certificates. The set of
+ * criteria is given from two
+ * {@link org.spongycastle.x509.X509CertStoreSelector}s which must be both
+ * matched.
+ * 
+ * @see org.spongycastle.x509.X509AttributeCertificate
+ * @see org.spongycastle.x509.X509Store
+ */
+public class X509CertPairStoreSelector implements Selector
+{
+
+    private X509CertStoreSelector forwardSelector;
+
+    private X509CertStoreSelector reverseSelector;
+
+    private X509CertificatePair certPair;
+
+    public X509CertPairStoreSelector()
+    {
+    }
+
+    /**
+     * Returns the certificate pair which is used for testing on equality.
+     * 
+     * @return Returns the certificate pair which is checked.
+     */
+    public X509CertificatePair getCertPair()
+    {
+        return certPair;
+    }
+
+    /**
+     * Set the certificate pair which is used for testing on equality.
+     * 
+     * @param certPair The certPairChecking to set.
+     */
+    public void setCertPair(X509CertificatePair certPair)
+    {
+        this.certPair = certPair;
+    }
+
+    /**
+     * @param forwardSelector The certificate selector for the forward part in
+     *            the pair.
+     */
+    public void setForwardSelector(X509CertStoreSelector forwardSelector)
+    {
+        this.forwardSelector = forwardSelector;
+    }
+
+    /**
+     * @param reverseSelector The certificate selector for the reverse part in
+     *            the pair.
+     */
+    public void setReverseSelector(X509CertStoreSelector reverseSelector)
+    {
+        this.reverseSelector = reverseSelector;
+    }
+
+    /**
+     * Returns a clone of this selector.
+     * 
+     * @return A clone of this selector.
+     * @see java.lang.Object#clone()
+     */
+    public Object clone()
+    {
+        X509CertPairStoreSelector cln = new X509CertPairStoreSelector();
+
+        cln.certPair = certPair;
+        
+        if (forwardSelector != null)
+        {
+            cln.setForwardSelector((X509CertStoreSelector) forwardSelector
+                    .clone());
+        }
+
+        if (reverseSelector != null)
+        {
+            cln.setReverseSelector((X509CertStoreSelector) reverseSelector
+                    .clone());
+        }
+
+        return cln;
+    }
+
+    /**
+     * Decides if the given certificate pair should be selected. If
+     * <code>obj</code> is not a {@link X509CertificatePair} this method
+     * returns <code>false</code>.
+     * 
+     * @param obj The {@link X509CertificatePair} which should be tested.
+     * @return <code>true</code> if the object matches this selector.
+     */
+    public boolean match(Object obj)
+    {
+        try
+        {
+            if (!(obj instanceof X509CertificatePair))
+            {
+                return false;
+            }
+            X509CertificatePair pair = (X509CertificatePair)obj;
+
+            if (forwardSelector != null
+                    && !forwardSelector.match((Object)pair.getForward()))
+            {
+                return false;
+            }
+
+            if (reverseSelector != null
+                    && !reverseSelector.match((Object)pair.getReverse()))
+            {
+                return false;
+            }
+
+            if (certPair != null)
+            {
+                return certPair.equals(obj);
+            }
+
+            return true;
+        }
+        catch (Exception e)
+        {
+            return false;
+        }
+    }
+
+    /**
+     * Returns the certicate selector for the forward part.
+     * 
+     * @return Returns the certicate selector for the forward part.
+     */
+    public X509CertStoreSelector getForwardSelector()
+    {
+        return forwardSelector;
+    }
+
+    /**
+     * Returns the certicate selector for the reverse part.
+     * 
+     * @return Returns the reverse selector for teh reverse part.
+     */
+    public X509CertStoreSelector getReverseSelector()
+    {
+        return reverseSelector;
+    }
+}